Adding new algos

2025-07-23 04:36:50 +00:00 · 2024-02-18 18:12:43 +01:00
parent ce8fb002cc
commit 2d27901f9f
51 changed files with 3343 additions and 46 deletions
--- a/src/main/java/org/qortal/account/SelfSponsorshipAlgoV2.java
+++ b/src/main/java/org/qortal/account/SelfSponsorshipAlgoV2.java
@@ -0,0 +1,249 @@
+package org.qortal.account;
+
+import org.qortal.api.resource.TransactionsResource;
+import org.qortal.asset.Asset;
+import org.qortal.block.BlockChain;
+import org.qortal.data.account.AccountData;
+import org.qortal.data.transaction.*;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.transaction.Transaction.TransactionType;
+
+import java.util.*;
+
+public class SelfSponsorshipAlgoV2 {
+
+    private final long snapshotTimestampV1 = BlockChain.getInstance().getSelfSponsorshipAlgoV1SnapshotTimestamp();
+    private final long snapshotTimestampV2 = BlockChain.getInstance().getSelfSponsorshipAlgoV2SnapshotTimestamp();
+    private final long referenceTimestamp = BlockChain.getInstance().getReferenceTimestampBlock();
+
+    private final boolean override;
+    private final Repository repository;
+    private final String address;
+
+    private int recentAssetSendCount  = 0;
+    private int recentSponsorshipCount = 0;
+
+    private final Set<String> assetAddresses = new LinkedHashSet<>();
+    private final Set<String> penaltyAddresses = new LinkedHashSet<>();
+    private final Set<String> sponsorAddresses = new LinkedHashSet<>();
+
+    private List<RewardShareTransactionData> sponsorshipRewardShares = new ArrayList<>();
+    private List<TransferAssetTransactionData> transferAssetForAddress = new ArrayList<>();
+
+    public SelfSponsorshipAlgoV2(Repository repository, String address, boolean override) {
+        this.repository = repository;
+        this.address = address;
+        this.override = override;
+    }
+
+    public String getAddress() {
+        return this.address;
+    }
+
+    public Set<String> getPenaltyAddresses() {
+        return this.penaltyAddresses;
+    }
+
+    public void run() throws DataException {
+        if (!override) {
+            this.getAccountPrivs(this.address);
+        }
+
+        if (override) {
+            this.fetchTransferAssetForAddress(this.address);
+            this.findRecentAssetSendCount();
+
+            if (this.recentAssetSendCount >= 6) {
+                this.penaltyAddresses.add(this.address);
+                this.penaltyAddresses.addAll(this.assetAddresses);
+            }
+        }
+    }
+
+    private void getAccountPrivs(String address) throws DataException {
+        AccountData accountData = this.repository.getAccountRepository().getAccount(address);
+        List<TransactionData> transferPrivsTransactions = fetchTransferPrivsForAddress(address);
+        transferPrivsTransactions.removeIf(t -> t.getTimestamp() > this.referenceTimestamp || accountData.getAddress().equals(t.getRecipient()));
+
+        if (transferPrivsTransactions.isEmpty()) {
+            // Nothing to do
+            return;
+        }
+
+        for (TransactionData transactionData : transferPrivsTransactions) {
+            TransferPrivsTransactionData transferPrivsTransactionData = (TransferPrivsTransactionData) transactionData;
+            this.penaltyAddresses.add(transferPrivsTransactionData.getRecipient());
+            this.fetchSponsorshipRewardShares(transferPrivsTransactionData.getRecipient());
+            this.findRecentSponsorshipCount();
+
+            if (this.recentSponsorshipCount >= 1) {
+                this.penaltyAddresses.addAll(this.sponsorAddresses);
+            }
+
+            String newAddress = this.getDestinationAccount(transferPrivsTransactionData.getRecipient());
+
+            while (newAddress != null) {
+                // Found destination account
+                this.penaltyAddresses.add(newAddress);
+                this.fetchSponsorshipRewardShares(newAddress);
+                this.findRecentSponsorshipCount();
+
+                if (this.recentSponsorshipCount >= 1) {
+                    this.penaltyAddresses.addAll(this.sponsorAddresses);
+                }
+
+                newAddress = this.getDestinationAccount(newAddress);
+            }
+        }
+    }
+
+    private String getDestinationAccount(String address) throws DataException {
+        AccountData accountData = this.repository.getAccountRepository().getAccount(address);
+        List<TransactionData> transferPrivsTransactions = fetchTransferPrivsForAddress(address);
+        transferPrivsTransactions.removeIf(t -> t.getTimestamp() > this.referenceTimestamp || accountData.getAddress().equals(t.getRecipient()));
+
+        if (transferPrivsTransactions.isEmpty()) {
+            return null;
+        }
+
+        if (accountData == null) {
+            return null;
+        }
+
+        for (TransactionData transactionData : transferPrivsTransactions) {
+            TransferPrivsTransactionData transferPrivsTransactionData = (TransferPrivsTransactionData) transactionData;
+            if (Arrays.equals(transferPrivsTransactionData.getSenderPublicKey(), accountData.getPublicKey())) {
+                return transferPrivsTransactionData.getRecipient();
+            }
+        }
+
+        return null;
+    }
+
+    private void fetchSponsorshipRewardShares(String address) throws DataException {
+        AccountData accountDataRs = this.repository.getAccountRepository().getAccount(address);
+        List<RewardShareTransactionData> sponsorshipRewardShares = new ArrayList<>();
+
+        // Define relevant transactions
+        List<TransactionType> txTypes = List.of(TransactionType.REWARD_SHARE);
+        List<TransactionData> transactionDataList = fetchTransactions(repository, txTypes, address, false);
+
+        for (TransactionData transactionData : transactionDataList) {
+            if (transactionData.getType() != TransactionType.REWARD_SHARE) {
+                continue;
+            }
+
+            RewardShareTransactionData rewardShareTransactionData = (RewardShareTransactionData) transactionData;
+
+            // Skip removals
+            if (rewardShareTransactionData.getSharePercent() < 0) {
+                continue;
+            }
+
+            // Skip if not sponsored by this account
+            if (!Arrays.equals(rewardShareTransactionData.getCreatorPublicKey(), accountDataRs.getPublicKey())) {
+                continue;
+            }
+
+            // Skip self shares
+            if (Objects.equals(rewardShareTransactionData.getRecipient(), address)) {
+                continue;
+            }
+
+            boolean duplicateFound = false;
+            for (RewardShareTransactionData existingRewardShare : sponsorshipRewardShares) {
+                if (Objects.equals(existingRewardShare.getRecipient(), rewardShareTransactionData.getRecipient())) {
+                    // Duplicate
+                    duplicateFound = true;
+                    break;
+                }
+            }
+
+            if (!duplicateFound) {
+                sponsorshipRewardShares.add(rewardShareTransactionData);
+                this.sponsorAddresses.add(rewardShareTransactionData.getRecipient());
+            }
+        }
+
+        this.sponsorshipRewardShares = sponsorshipRewardShares;
+    }
+
+    private void fetchTransferAssetForAddress(String address) throws DataException {
+        List<TransferAssetTransactionData> transferAssetForAddress = new ArrayList<>();
+
+        // Define relevant transactions
+        List<TransactionType> txTypes = List.of(TransactionType.TRANSFER_ASSET);
+        List<TransactionData> transactionDataList = fetchTransactions(repository, txTypes, address, false);
+        transactionDataList.removeIf(t -> t.getTimestamp() <= this.snapshotTimestampV1 || t.getTimestamp() >= this.snapshotTimestampV2);
+
+        for (TransactionData transactionData : transactionDataList) {
+            if (transactionData.getType() != TransactionType.TRANSFER_ASSET) {
+                continue;
+            }
+
+            TransferAssetTransactionData transferAssetTransactionData = (TransferAssetTransactionData) transactionData;
+
+            if (transferAssetTransactionData.getAssetId() == Asset.QORT) {
+                if (!Objects.equals(transferAssetTransactionData.getRecipient(), address)) {
+                    // Outgoing transfer asset for this account
+                    transferAssetForAddress.add(transferAssetTransactionData);
+                    this.assetAddresses.add(transferAssetTransactionData.getRecipient());
+                }
+            }
+        }
+
+        this.transferAssetForAddress = transferAssetForAddress;
+    }
+
+    private void findRecentSponsorshipCount() {
+        int recentSponsorshipCount = 0;
+
+        for (RewardShareTransactionData rewardShare : sponsorshipRewardShares) {
+            if (rewardShare.getTimestamp() >= this.snapshotTimestampV1) {
+                recentSponsorshipCount++;
+            }
+        }
+
+        this.recentSponsorshipCount = recentSponsorshipCount;
+    }
+
+    private void findRecentAssetSendCount() {
+        int recentAssetSendCount = 0;
+
+        for (TransferAssetTransactionData assetSend : transferAssetForAddress) {
+            if (assetSend.getTimestamp() >= this.snapshotTimestampV1) {
+                recentAssetSendCount++;
+            }
+        }
+
+        this.recentAssetSendCount = recentAssetSendCount;
+    }
+
+    private List<TransactionData> fetchTransferPrivsForAddress(String address) throws DataException {
+        return fetchTransactions(repository,
+                List.of(TransactionType.TRANSFER_PRIVS),
+                address, true);
+    }
+
+    private static List<TransactionData> fetchTransactions(Repository repository, List<TransactionType> txTypes, String address, boolean reverse) throws DataException {
+        // Fetch all relevant transactions for this account
+        List<byte[]> signatures = repository.getTransactionRepository()
+                .getSignaturesMatchingCriteria(null, null, null, txTypes,
+                        null, null, address, TransactionsResource.ConfirmationStatus.CONFIRMED,
+                        null, null, reverse);
+
+        List<TransactionData> transactionDataList = new ArrayList<>();
+
+        for (byte[] signature : signatures) {
+            // Fetch transaction data
+            TransactionData transactionData = repository.getTransactionRepository().fromSignature(signature);
+            if (transactionData == null) {
+                continue;
+            }
+            transactionDataList.add(transactionData);
+        }
+
+        return transactionDataList;
+    }
+}
--- a/src/main/java/org/qortal/account/SelfSponsorshipAlgoV3.java
+++ b/src/main/java/org/qortal/account/SelfSponsorshipAlgoV3.java
@@ -0,0 +1,370 @@
+package org.qortal.account;
+
+import org.qortal.api.resource.TransactionsResource;
+import org.qortal.asset.Asset;
+import org.qortal.data.account.AccountData;
+import org.qortal.data.naming.NameData;
+import org.qortal.data.transaction.*;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.transaction.Transaction.TransactionType;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class SelfSponsorshipAlgoV3 {
+
+    private final Repository repository;
+    private final String address;
+    private final AccountData accountData;
+    private final long snapshotTimestampV1;
+    private final long snapshotTimestampV3;
+    private final boolean override;
+
+    private int registeredNameCount = 0;
+    private int suspiciousCount = 0;
+    private int suspiciousPercent = 0;
+    private int consolidationCount = 0;
+    private int bulkIssuanceCount = 0;
+    private int recentSponsorshipCount = 0;
+
+    private List<RewardShareTransactionData> sponsorshipRewardShares = new ArrayList<>();
+    private final Map<String, List<TransactionData>> paymentsByAddress = new HashMap<>();
+    private final Set<String> sponsees = new LinkedHashSet<>();
+    private Set<String> consolidatedAddresses = new LinkedHashSet<>();
+    private final Set<String> zeroTransactionAddreses = new LinkedHashSet<>();
+    private final Set<String> penaltyAddresses = new LinkedHashSet<>();
+
+    public SelfSponsorshipAlgoV3(Repository repository, String address, long snapshotTimestampV1, long snapshotTimestampV3, boolean override) throws DataException {
+        this.repository = repository;
+        this.address = address;
+        this.accountData = this.repository.getAccountRepository().getAccount(this.address);
+        this.snapshotTimestampV1 = snapshotTimestampV1;
+        this.snapshotTimestampV3 = snapshotTimestampV3;
+        this.override = override;
+    }
+
+    public String getAddress() {
+        return this.address;
+    }
+
+    public Set<String> getPenaltyAddresses() {
+        return this.penaltyAddresses;
+    }
+
+
+    public void run() throws DataException {
+        if (this.accountData == null) {
+            // Nothing to do
+            return;
+        }
+
+        this.fetchSponsorshipRewardShares();
+        if (this.sponsorshipRewardShares.isEmpty()) {
+            // Nothing to do
+            return;
+        }
+
+        this.findConsolidatedRewards();
+        this.findBulkIssuance();
+        this.findRegisteredNameCount();
+        this.findRecentSponsorshipCount();
+
+        int score = this.calculateScore();
+        if (score <= 0 && !override) {
+            return;
+        }
+
+        String newAddress = this.getDestinationAccount(this.address);
+        while (newAddress != null) {
+            // Found destination account
+            this.penaltyAddresses.add(newAddress);
+
+            // Run algo for this address, but in "override" mode because it has already been flagged
+            SelfSponsorshipAlgoV3 algoV3 = new SelfSponsorshipAlgoV3(this.repository, newAddress, this.snapshotTimestampV1, this.snapshotTimestampV3, true);
+            algoV3.run();
+            this.penaltyAddresses.addAll(algoV3.getPenaltyAddresses());
+
+            newAddress = this.getDestinationAccount(newAddress);
+        }
+
+        this.penaltyAddresses.add(this.address);
+
+        if (this.override || this.recentSponsorshipCount < 20) {
+            this.penaltyAddresses.addAll(this.consolidatedAddresses);
+            this.penaltyAddresses.addAll(this.zeroTransactionAddreses);
+        }
+        else {
+            this.penaltyAddresses.addAll(this.sponsees);
+        }
+    }
+
+    private String getDestinationAccount(String address) throws DataException {
+        List<TransactionData> transferPrivsTransactions = fetchTransferPrivsForAddress(address);
+        if (transferPrivsTransactions.isEmpty()) {
+            // No TRANSFER_PRIVS transactions for this address
+            return null;
+        }
+
+        AccountData accountData = this.repository.getAccountRepository().getAccount(address);
+        if (accountData == null) {
+            return null;
+        }
+
+        for (TransactionData transactionData : transferPrivsTransactions) {
+            TransferPrivsTransactionData transferPrivsTransactionData = (TransferPrivsTransactionData) transactionData;
+            if (Arrays.equals(transferPrivsTransactionData.getSenderPublicKey(), accountData.getPublicKey())) {
+                return transferPrivsTransactionData.getRecipient();
+            }
+        }
+
+        return null;
+    }
+
+    private void findConsolidatedRewards() throws DataException {
+        List<String> sponseesThatSentRewards = new ArrayList<>();
+        Map<String, Integer> paymentRecipients = new HashMap<>();
+
+        // Collect outgoing payments of each sponsee
+        for (String sponseeAddress : this.sponsees) {
+
+            // Firstly fetch all payments for address, since the functions below depend on this data
+            this.fetchPaymentsForAddress(sponseeAddress);
+
+            // Check if the address has zero relevant transactions
+            if (this.hasZeroTransactions(sponseeAddress)) {
+                this.zeroTransactionAddreses.add(sponseeAddress);
+            }
+
+            // Get payment recipients
+            List<String> allPaymentRecipients = this.fetchOutgoingPaymentRecipientsForAddress(sponseeAddress);
+            if (allPaymentRecipients.isEmpty()) {
+                continue;
+            }
+            sponseesThatSentRewards.add(sponseeAddress);
+
+            List<String> addressesPaidByThisSponsee = new ArrayList<>();
+            for (String paymentRecipient : allPaymentRecipients) {
+                if (addressesPaidByThisSponsee.contains(paymentRecipient)) {
+                    // We already tracked this association - don't allow multiple to stack up
+                    continue;
+                }
+                addressesPaidByThisSponsee.add(paymentRecipient);
+
+                // Increment count for this recipient, or initialize to 1 if not present
+                if (paymentRecipients.computeIfPresent(paymentRecipient, (k, v) -> v + 1) == null) {
+                    paymentRecipients.put(paymentRecipient, 1);
+                }
+            }
+
+        }
+
+        // Exclude addresses with a low number of payments
+        Map<String, Integer> filteredPaymentRecipients = paymentRecipients.entrySet().stream()
+                .filter(p -> p.getValue() != null && p.getValue() >= 10)
+                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+
+        // Now check how many sponsees have sent to this subset of addresses
+        Map<String, Integer> sponseesThatConsolidatedRewards = new HashMap<>();
+        for (String sponseeAddress : sponseesThatSentRewards) {
+            List<String> allPaymentRecipients = this.fetchOutgoingPaymentRecipientsForAddress(sponseeAddress);
+            // Remove any that aren't to one of the flagged recipients (i.e. consolidation)
+            allPaymentRecipients.removeIf(r -> !filteredPaymentRecipients.containsKey(r));
+
+            int count = allPaymentRecipients.size();
+            if (count == 0) {
+                continue;
+            }
+            if (sponseesThatConsolidatedRewards.computeIfPresent(sponseeAddress, (k, v) -> v + count) == null) {
+                sponseesThatConsolidatedRewards.put(sponseeAddress, count);
+            }
+        }
+
+        // Remove sponsees that have only sent a low number of payments to the filtered addresses
+        Map<String, Integer> filteredSponseesThatConsolidatedRewards = sponseesThatConsolidatedRewards.entrySet().stream()
+                .filter(p -> p.getValue() != null && p.getValue() >= 2)
+                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+
+        this.consolidationCount = sponseesThatConsolidatedRewards.size();
+        this.consolidatedAddresses = new LinkedHashSet<>(filteredSponseesThatConsolidatedRewards.keySet());
+        this.suspiciousCount = this.consolidationCount + this.zeroTransactionAddreses.size();
+        this.suspiciousPercent = (int)(this.suspiciousCount / (float) this.sponsees.size() * 100);
+    }
+
+    private void findBulkIssuance() {
+        Long lastTimestamp = null;
+        for (RewardShareTransactionData rewardShareTransactionData : sponsorshipRewardShares) {
+            long timestamp = rewardShareTransactionData.getTimestamp();
+            if (timestamp >= this.snapshotTimestampV3) {
+                continue;
+            }
+
+            if (lastTimestamp != null) {
+                if (timestamp - lastTimestamp < 3*60*1000L) {
+                    this.bulkIssuanceCount++;
+                }
+            }
+            lastTimestamp = timestamp;
+        }
+    }
+
+    private void findRegisteredNameCount() throws DataException {
+        int registeredNameCount = 0;
+        for (String sponseeAddress : sponsees) {
+            List<NameData> names = repository.getNameRepository().getNamesByOwner(sponseeAddress);
+            for (NameData name : names) {
+                if (name.getRegistered() < this.snapshotTimestampV3) {
+                    registeredNameCount++;
+                    break;
+                }
+            }
+        }
+        this.registeredNameCount = registeredNameCount;
+    }
+
+    private void findRecentSponsorshipCount() {
+        int recentSponsorshipCount = 0;
+        for (RewardShareTransactionData rewardShare : sponsorshipRewardShares) {
+            if (rewardShare.getTimestamp() >= this.snapshotTimestampV1) {
+                recentSponsorshipCount++;
+            }
+        }
+        this.recentSponsorshipCount = recentSponsorshipCount;
+    }
+
+    private int calculateScore() {
+        final int suspiciousMultiplier = (this.suspiciousCount >= 100) ? this.suspiciousPercent : 1;
+        final int nameMultiplier = (this.sponsees.size() >= 25 && this.registeredNameCount <= 1) ? 21 :
+            (this.sponsees.size() >= 15 && this.registeredNameCount <= 1) ? 11 :
+                (this.sponsees.size() >= 5 && this.registeredNameCount <= 1) ? 5 : 1;
+        final int consolidationMultiplier = Math.max(this.consolidationCount, 1);
+        final int bulkIssuanceMultiplier = Math.max(this.bulkIssuanceCount / 2, 1);
+        final int offset = 20;
+        return suspiciousMultiplier * nameMultiplier * consolidationMultiplier * bulkIssuanceMultiplier - offset;
+    }
+
+    private void fetchSponsorshipRewardShares() throws DataException {
+        List<RewardShareTransactionData> sponsorshipRewardShares = new ArrayList<>();
+
+        // Define relevant transactions
+        List<TransactionType> txTypes = List.of(TransactionType.REWARD_SHARE);
+        List<TransactionData> transactionDataList = fetchTransactions(repository, txTypes, this.address, false);
+        transactionDataList.removeIf(t -> t.getTimestamp() <= this.snapshotTimestampV1 || t.getTimestamp() >= this.snapshotTimestampV3);
+
+        for (TransactionData transactionData : transactionDataList) {
+            if (transactionData.getType() != TransactionType.REWARD_SHARE) {
+                continue;
+            }
+
+            RewardShareTransactionData rewardShareTransactionData = (RewardShareTransactionData) transactionData;
+
+            // Skip removals
+            if (rewardShareTransactionData.getSharePercent() < 0) {
+                continue;
+            }
+
+            // Skip if not sponsored by this account
+            if (!Arrays.equals(rewardShareTransactionData.getCreatorPublicKey(), accountData.getPublicKey())) {
+                continue;
+            }
+
+            // Skip self shares
+            if (Objects.equals(rewardShareTransactionData.getRecipient(), this.address)) {
+                continue;
+            }
+
+            boolean duplicateFound = false;
+            for (RewardShareTransactionData existingRewardShare : sponsorshipRewardShares) {
+                if (Objects.equals(existingRewardShare.getRecipient(), rewardShareTransactionData.getRecipient())) {
+                    // Duplicate
+                    duplicateFound = true;
+                    break;
+                }
+            }
+            if (!duplicateFound) {
+                sponsorshipRewardShares.add(rewardShareTransactionData);
+                this.sponsees.add(rewardShareTransactionData.getRecipient());
+            }
+        }
+
+        this.sponsorshipRewardShares = sponsorshipRewardShares;
+    }
+
+    private List<TransactionData> fetchTransferPrivsForAddress(String address) throws DataException {
+        return fetchTransactions(repository,
+                List.of(TransactionType.TRANSFER_PRIVS),
+                address, true);
+    }
+
+    private void fetchPaymentsForAddress(String address) throws DataException {
+        List<TransactionData> payments = fetchTransactions(repository,
+                Arrays.asList(TransactionType.PAYMENT, TransactionType.TRANSFER_ASSET),
+                address, false);
+        this.paymentsByAddress.put(address, payments);
+    }
+
+    private List<String> fetchOutgoingPaymentRecipientsForAddress(String address) {
+        List<String> outgoingPaymentRecipients = new ArrayList<>();
+
+        List<TransactionData> transactionDataList = this.paymentsByAddress.get(address);
+        if (transactionDataList == null) transactionDataList = new ArrayList<>();
+        transactionDataList.removeIf(t -> t.getTimestamp() <= this.snapshotTimestampV1 || t.getTimestamp() >= this.snapshotTimestampV3);
+        for (TransactionData transactionData : transactionDataList) {
+            switch (transactionData.getType()) {
+
+                case PAYMENT:
+                    PaymentTransactionData paymentTransactionData = (PaymentTransactionData) transactionData;
+                    if (!Objects.equals(paymentTransactionData.getRecipient(), address)) {
+                        // Outgoing payment from this account
+                        outgoingPaymentRecipients.add(paymentTransactionData.getRecipient());
+                    }
+                    break;
+
+                case TRANSFER_ASSET:
+                    TransferAssetTransactionData transferAssetTransactionData = (TransferAssetTransactionData) transactionData;
+                    if (transferAssetTransactionData.getAssetId() == Asset.QORT) {
+                        if (!Objects.equals(transferAssetTransactionData.getRecipient(), address)) {
+                            // Outgoing payment from this account
+                            outgoingPaymentRecipients.add(transferAssetTransactionData.getRecipient());
+                        }
+                    }
+                    break;
+
+                default:
+                    break;
+            }
+        }
+
+        return outgoingPaymentRecipients;
+    }
+
+    private boolean hasZeroTransactions(String address) {
+        List<TransactionData> transactionDataList = this.paymentsByAddress.get(address);
+        if (transactionDataList == null) {
+            return true;
+        }
+        transactionDataList.removeIf(t -> t.getTimestamp() <= this.snapshotTimestampV1 || t.getTimestamp() >= this.snapshotTimestampV3);
+        return transactionDataList.size() == 0;
+    }
+
+    private static List<TransactionData> fetchTransactions(Repository repository, List<TransactionType> txTypes, String address, boolean reverse) throws DataException {
+        // Fetch all relevant transactions for this account
+        List<byte[]> signatures = repository.getTransactionRepository()
+                .getSignaturesMatchingCriteria(null, null, null, txTypes,
+                        null, null, address, TransactionsResource.ConfirmationStatus.CONFIRMED,
+                        null, null, reverse);
+
+        List<TransactionData> transactionDataList = new ArrayList<>();
+
+        for (byte[] signature : signatures) {
+            // Fetch transaction data
+            TransactionData transactionData = repository.getTransactionRepository().fromSignature(signature);
+            if (transactionData == null) {
+                continue;
+            }
+            transactionDataList.add(transactionData);
+        }
+
+        return transactionDataList;
+    }
+}
--- a/src/main/java/org/qortal/block/Block.java
+++ b/src/main/java/org/qortal/block/Block.java
@@ -1062,9 +1062,9 @@ public class Block {

 		long expectedTimestamp = calcTimestamp(parentBlockData, this.blockData.getMinterPublicKey(), minterLevel);
 		if (this.blockData.getTimestamp() != expectedTimestamp) {
-                    LOGGER.debug(String.format("timestamp mismatch! block had %s but we expected %s", this.blockData.getTimestamp(), expectedTimestamp));
-                    return ValidationResult.TIMESTAMP_INCORRECT;
-                }
+			LOGGER.debug(String.format("timestamp mismatch! block had %s but we expected %s", this.blockData.getTimestamp(), expectedTimestamp));
+			return ValidationResult.TIMESTAMP_INCORRECT;
+		}

 		return ValidationResult.OK;
 	}
@@ -1558,6 +1558,14 @@ public class Block {
 			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV1Height()) {
 				SelfSponsorshipAlgoV1Block.processAccountPenalties(this);
 			}
+
+			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
+				SelfSponsorshipAlgoV2Block.processAccountPenalties(this);
+			}
+
+			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
+				SelfSponsorshipAlgoV3Block.processAccountPenalties(this);
+			}
 		}

 		// We're about to (test-)process a batch of transactions,
@@ -1851,6 +1859,14 @@ public class Block {
 				SelfSponsorshipAlgoV1Block.orphanAccountPenalties(this);
 			}

+			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
+				SelfSponsorshipAlgoV2Block.orphanAccountPenalties(this);
+			}
+
+			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
+				SelfSponsorshipAlgoV3Block.orphanAccountPenalties(this);
+			}
+			
 			// Account levels and block rewards are only processed/orphaned on block reward distribution blocks
 			if (this.isRewardDistributionBlock()) {
 				// Block rewards, including transaction fees, removed after transactions undone
--- a/src/main/java/org/qortal/block/BlockChain.java
+++ b/src/main/java/org/qortal/block/BlockChain.java
@@ -74,6 +74,7 @@ public class BlockChain {
 		onlineAccountMinterLevelValidationHeight,
 		selfSponsorshipAlgoV1Height,
 		selfSponsorshipAlgoV2Height,
+		selfSponsorshipAlgoV3Height,
 		feeValidationFixTimestamp,
 		chatReferenceTimestamp,
 		arbitraryOptionalFeeTimestamp,
@@ -216,6 +217,12 @@ public class BlockChain {
 	/** Snapshot timestamp for self sponsorship algo V2 */
 	private long selfSponsorshipAlgoV2SnapshotTimestamp;

+	/** Snapshot timestamp for self sponsorship algo V3 */
+	private long selfSponsorshipAlgoV3SnapshotTimestamp;
+
+	/** Reference timestamp for self sponsorship algo V1 block height */
+	private long referenceTimestampBlock;
+
 	/** Feature-trigger timestamp to modify behaviour of various transactions that support mempow */
 	private long mempowTransactionUpdatesTimestamp;

@@ -418,6 +425,15 @@ public class BlockChain {
 		return this.selfSponsorshipAlgoV2SnapshotTimestamp;
 	}

+	// Self sponsorship algo V3
+	public long getSelfSponsorshipAlgoV3SnapshotTimestamp() {
+		return this.selfSponsorshipAlgoV3SnapshotTimestamp;
+	}
+
+	// Self sponsorship algo V3
+	public long getReferenceTimestampBlock() {
+		return this.referenceTimestampBlock;
+	}
 	// Feature-trigger timestamp to modify behaviour of various transactions that support mempow
 	public long getMemPoWTransactionUpdatesTimestamp() {
 		return this.mempowTransactionUpdatesTimestamp;
@@ -562,6 +578,10 @@ public class BlockChain {
 		return this.featureTriggers.get(FeatureTrigger.selfSponsorshipAlgoV2Height.name()).intValue();
 	}

+	public int getSelfSponsorshipAlgoV3Height() {
+		return this.featureTriggers.get(FeatureTrigger.selfSponsorshipAlgoV3Height.name()).intValue();
+	}
+
 	public long getOnlineAccountMinterLevelValidationHeight() {
 		return this.featureTriggers.get(FeatureTrigger.onlineAccountMinterLevelValidationHeight.name()).intValue();
 	}
--- a/src/main/java/org/qortal/block/SelfSponsorshipAlgoV2Block.java
+++ b/src/main/java/org/qortal/block/SelfSponsorshipAlgoV2Block.java
@@ -0,0 +1,143 @@
+package org.qortal.block;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.qortal.account.SelfSponsorshipAlgoV2;
+import org.qortal.api.model.AccountPenaltyStats;
+import org.qortal.crypto.Crypto;
+import org.qortal.data.account.AccountData;
+import org.qortal.data.account.AccountPenaltyData;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.utils.Base58;
+
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * Self Sponsorship AlgoV2 Block
+ * <p>
+ * Selected block for the initial run on the "self sponsorship detection algorithm"
+ */
+public final class SelfSponsorshipAlgoV2Block {
+
+	private static final Logger LOGGER = LogManager.getLogger(SelfSponsorshipAlgoV2Block.class);
+
+	private SelfSponsorshipAlgoV2Block() {
+		/* Do not instantiate */
+	}
+
+	public static void processAccountPenalties(Block block) throws DataException {
+		LOGGER.info("Process Self Sponsorship Algo V2 - this will take a while...");
+		logPenaltyStats(block.repository);
+		long startTime = System.currentTimeMillis();
+		Set<AccountPenaltyData> penalties = getAccountPenalties(block.repository, -5000000);
+		block.repository.getAccountRepository().updateBlocksMintedPenalties(penalties);
+		long totalTime = System.currentTimeMillis() - startTime;
+		String hash = getHash(penalties.stream().map(p -> p.getAddress()).collect(Collectors.toList()));
+		LOGGER.info("{} penalty addresses processed (hash: {}). Total time taken: {} seconds", penalties.size(), hash, (int)(totalTime / 1000.0f));
+		logPenaltyStats(block.repository);
+
+		int updatedCount = updateAccountLevels(block.repository, penalties);
+		LOGGER.info("Account levels updated for {} penalty addresses", updatedCount);
+	}
+
+	public static void orphanAccountPenalties(Block block) throws DataException {
+		LOGGER.info("Orphan Self Sponsorship Algo V2 - this will take a while...");
+		logPenaltyStats(block.repository);
+		long startTime = System.currentTimeMillis();
+		Set<AccountPenaltyData> penalties = getAccountPenalties(block.repository, 5000000);
+		block.repository.getAccountRepository().updateBlocksMintedPenalties(penalties);
+		long totalTime = System.currentTimeMillis() - startTime;
+		String hash = getHash(penalties.stream().map(p -> p.getAddress()).collect(Collectors.toList()));
+		LOGGER.info("{} penalty addresses orphaned (hash: {}). Total time taken: {} seconds", penalties.size(), hash, (int)(totalTime / 1000.0f));
+		logPenaltyStats(block.repository);
+
+		int updatedCount = updateAccountLevels(block.repository, penalties);
+		LOGGER.info("Account levels updated for {} penalty addresses", updatedCount);
+	}
+
+	private static Set<AccountPenaltyData> getAccountPenalties(Repository repository, int penalty) throws DataException {
+		Set<AccountPenaltyData> penalties = new LinkedHashSet<>();
+		List<AccountData> penalizedAddresses = repository.getAccountRepository().getPenaltyAccounts();
+		List<String> assetAddresses = repository.getTransactionRepository().getConfirmedTransferAssetCreators();
+
+		for (AccountData penalizedAddress : penalizedAddresses) {
+			//System.out.println(String.format("address: %s", address));
+			SelfSponsorshipAlgoV2 selfSponsorshipAlgoV2 = new SelfSponsorshipAlgoV2(repository, penalizedAddress.getAddress(), false);
+			selfSponsorshipAlgoV2.run();
+			//System.out.println(String.format("Penalty addresses: %d", selfSponsorshipAlgoV2.getPenaltyAddresses().size()));
+			for (String penaltyAddress : selfSponsorshipAlgoV2.getPenaltyAddresses()) {
+				penalties.add(new AccountPenaltyData(penaltyAddress, penalty));
+			}
+		}
+
+		for (String assetAddress : assetAddresses) {
+			//System.out.println(String.format("address: %s", address));
+			SelfSponsorshipAlgoV2 selfSponsorshipAlgoV2 = new SelfSponsorshipAlgoV2(repository, assetAddress, true);
+			selfSponsorshipAlgoV2.run();
+			//System.out.println(String.format("Penalty addresses: %d", selfSponsorshipAlgoV2.getPenaltyAddresses().size()));
+			for (String penaltyAddress : selfSponsorshipAlgoV2.getPenaltyAddresses()) {
+				penalties.add(new AccountPenaltyData(penaltyAddress, penalty));
+			}
+		}
+
+		return penalties;
+	}
+
+	private static int updateAccountLevels(Repository repository, Set<AccountPenaltyData> accountPenalties) throws DataException {
+		final List<Integer> cumulativeBlocksByLevel = BlockChain.getInstance().getCumulativeBlocksByLevel();
+		final int maximumLevel = cumulativeBlocksByLevel.size() - 1;
+
+		int updatedCount = 0;
+
+		for (AccountPenaltyData penaltyData : accountPenalties) {
+			AccountData accountData = repository.getAccountRepository().getAccount(penaltyData.getAddress());
+			final int effectiveBlocksMinted = accountData.getBlocksMinted() + accountData.getBlocksMintedAdjustment() + accountData.getBlocksMintedPenalty();
+
+			// Shortcut for penalties
+			if (effectiveBlocksMinted < 0) {
+				accountData.setLevel(0);
+				repository.getAccountRepository().setLevel(accountData);
+				updatedCount++;
+				LOGGER.trace(() -> String.format("Block minter %s dropped to level %d", accountData.getAddress(), accountData.getLevel()));
+				continue;
+			}
+
+			for (int newLevel = maximumLevel; newLevel >= 0; --newLevel) {
+				if (effectiveBlocksMinted >= cumulativeBlocksByLevel.get(newLevel)) {
+					accountData.setLevel(newLevel);
+					repository.getAccountRepository().setLevel(accountData);
+					updatedCount++;
+					LOGGER.trace(() -> String.format("Block minter %s increased to level %d", accountData.getAddress(), accountData.getLevel()));
+					break;
+				}
+			}
+		}
+
+		return updatedCount;
+	}
+
+	private static void logPenaltyStats(Repository repository) {
+		try {
+			LOGGER.info(getPenaltyStats(repository));
+
+		} catch (DataException e) {}
+	}
+
+	private static AccountPenaltyStats getPenaltyStats(Repository repository) throws DataException {
+		List<AccountData> accounts = repository.getAccountRepository().getPenaltyAccounts();
+		return AccountPenaltyStats.fromAccounts(accounts);
+	}
+
+	public static String getHash(List<String> penaltyAddresses) {
+		if (penaltyAddresses == null || penaltyAddresses.isEmpty()) {
+			return null;
+		}
+		Collections.sort(penaltyAddresses);
+		return Base58.encode(Crypto.digest(StringUtils.join(penaltyAddresses).getBytes(StandardCharsets.UTF_8)));
+	}
+
+}
--- a/src/main/java/org/qortal/block/SelfSponsorshipAlgoV3Block.java
+++ b/src/main/java/org/qortal/block/SelfSponsorshipAlgoV3Block.java
@@ -0,0 +1,136 @@
+package org.qortal.block;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.qortal.account.SelfSponsorshipAlgoV3;
+import org.qortal.api.model.AccountPenaltyStats;
+import org.qortal.crypto.Crypto;
+import org.qortal.data.account.AccountData;
+import org.qortal.data.account.AccountPenaltyData;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.utils.Base58;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * Self Sponsorship AlgoV3 Block
+ * <p>
+ * Selected block for the initial run on the "self sponsorship detection algorithm"
+ */
+public final class SelfSponsorshipAlgoV3Block {
+
+	private static final Logger LOGGER = LogManager.getLogger(SelfSponsorshipAlgoV3Block.class);
+
+	private SelfSponsorshipAlgoV3Block() {
+		/* Do not instantiate */
+	}
+
+	public static void processAccountPenalties(Block block) throws DataException {
+		LOGGER.info("Process Self Sponsorship Algo V3 - this will take a while...");
+		logPenaltyStats(block.repository);
+		long startTime = System.currentTimeMillis();
+		Set<AccountPenaltyData> penalties = getAccountPenalties(block.repository, -5000000);
+		block.repository.getAccountRepository().updateBlocksMintedPenalties(penalties);
+		long totalTime = System.currentTimeMillis() - startTime;
+		String hash = getHash(penalties.stream().map(p -> p.getAddress()).collect(Collectors.toList()));
+		LOGGER.info("{} penalty addresses processed (hash: {}). Total time taken: {} seconds", penalties.size(), hash, (int)(totalTime / 1000.0f));
+		logPenaltyStats(block.repository);
+
+		int updatedCount = updateAccountLevels(block.repository, penalties);
+		LOGGER.info("Account levels updated for {} penalty addresses", updatedCount);
+	}
+
+	public static void orphanAccountPenalties(Block block) throws DataException {
+		LOGGER.info("Orphan Self Sponsorship Algo V3 - this will take a while...");
+		logPenaltyStats(block.repository);
+		long startTime = System.currentTimeMillis();
+		Set<AccountPenaltyData> penalties = getAccountPenalties(block.repository, 5000000);
+		block.repository.getAccountRepository().updateBlocksMintedPenalties(penalties);
+		long totalTime = System.currentTimeMillis() - startTime;
+		String hash = getHash(penalties.stream().map(p -> p.getAddress()).collect(Collectors.toList()));
+		LOGGER.info("{} penalty addresses orphaned (hash: {}). Total time taken: {} seconds", penalties.size(), hash, (int)(totalTime / 1000.0f));
+		logPenaltyStats(block.repository);
+
+		int updatedCount = updateAccountLevels(block.repository, penalties);
+		LOGGER.info("Account levels updated for {} penalty addresses", updatedCount);
+	}
+
+	public static Set<AccountPenaltyData> getAccountPenalties(Repository repository, int penalty) throws DataException {
+		final long snapshotTimestampV1 = BlockChain.getInstance().getSelfSponsorshipAlgoV1SnapshotTimestamp();
+		final long snapshotTimestampV3 = BlockChain.getInstance().getSelfSponsorshipAlgoV3SnapshotTimestamp();
+		Set<AccountPenaltyData> penalties = new LinkedHashSet<>();
+		List<String> addresses = repository.getTransactionRepository().getConfirmedRewardShareCreatorsExcludingSelfShares();
+		for (String address : addresses) {
+			//System.out.println(String.format("address: %s", address));
+			SelfSponsorshipAlgoV3 selfSponsorshipAlgoV3 = new SelfSponsorshipAlgoV3(repository, address, snapshotTimestampV1, snapshotTimestampV3, false);
+			selfSponsorshipAlgoV3.run();
+			//System.out.println(String.format("Penalty addresses: %d", selfSponsorshipAlgoV3.getPenaltyAddresses().size()));
+
+			for (String penaltyAddress : selfSponsorshipAlgoV3.getPenaltyAddresses()) {
+				penalties.add(new AccountPenaltyData(penaltyAddress, penalty));
+			}
+		}
+		return penalties;
+	}
+
+	private static int updateAccountLevels(Repository repository, Set<AccountPenaltyData> accountPenalties) throws DataException {
+		final List<Integer> cumulativeBlocksByLevel = BlockChain.getInstance().getCumulativeBlocksByLevel();
+		final int maximumLevel = cumulativeBlocksByLevel.size() - 1;
+
+		int updatedCount = 0;
+
+		for (AccountPenaltyData penaltyData : accountPenalties) {
+			AccountData accountData = repository.getAccountRepository().getAccount(penaltyData.getAddress());
+			final int effectiveBlocksMinted = accountData.getBlocksMinted() + accountData.getBlocksMintedAdjustment() + accountData.getBlocksMintedPenalty();
+
+			// Shortcut for penalties
+			if (effectiveBlocksMinted < 0) {
+				accountData.setLevel(0);
+				repository.getAccountRepository().setLevel(accountData);
+				updatedCount++;
+				LOGGER.trace(() -> String.format("Block minter %s dropped to level %d", accountData.getAddress(), accountData.getLevel()));
+				continue;
+			}
+
+			for (int newLevel = maximumLevel; newLevel >= 0; --newLevel) {
+				if (effectiveBlocksMinted >= cumulativeBlocksByLevel.get(newLevel)) {
+					accountData.setLevel(newLevel);
+					repository.getAccountRepository().setLevel(accountData);
+					updatedCount++;
+					LOGGER.trace(() -> String.format("Block minter %s increased to level %d", accountData.getAddress(), accountData.getLevel()));
+					break;
+				}
+			}
+		}
+
+		return updatedCount;
+	}
+
+	private static void logPenaltyStats(Repository repository) {
+		try {
+			LOGGER.info(getPenaltyStats(repository));
+
+		} catch (DataException e) {}
+	}
+
+	private static AccountPenaltyStats getPenaltyStats(Repository repository) throws DataException {
+		List<AccountData> accounts = repository.getAccountRepository().getPenaltyAccounts();
+		return AccountPenaltyStats.fromAccounts(accounts);
+	}
+
+	public static String getHash(List<String> penaltyAddresses) {
+		if (penaltyAddresses == null || penaltyAddresses.isEmpty()) {
+			return null;
+		}
+		Collections.sort(penaltyAddresses);
+		return Base58.encode(Crypto.digest(StringUtils.join(penaltyAddresses).getBytes(StandardCharsets.UTF_8)));
+	}
+
+}
--- a/src/main/java/org/qortal/crosschain/PirateChain.java
+++ b/src/main/java/org/qortal/crosschain/PirateChain.java
@@ -51,7 +51,12 @@ public class PirateChain extends Bitcoiny {
 			public Collection<Server> getServers() {
 				return Arrays.asList(
 					// Servers chosen on NO BASIS WHATSOEVER from various sources!
-					new Server("lightd.pirate.black", Server.ConnectionType.SSL, 443)
+					new Server("lightd.pirate.black", Server.ConnectionType.SSL, 443),
+					new Server("wallet-arrr1.qortal.online", Server.ConnectionType.SSL, 443),
+					new Server("wallet-arrr2.qortal.online", Server.ConnectionType.SSL, 443),
+					new Server("wallet-arrr3.qortal.online", Server.ConnectionType.SSL, 443),
+					new Server("wallet-arrr4.qortal.online", Server.ConnectionType.SSL, 443),
+					new Server("wallet-arrr5.qortal.online", Server.ConnectionType.SSL, 443)
 				);
 			}

--- a/src/main/java/org/qortal/repository/TransactionRepository.java
+++ b/src/main/java/org/qortal/repository/TransactionRepository.java
@@ -205,6 +205,15 @@ public interface TransactionRepository {
 	 */
 	public List<String> getConfirmedRewardShareCreatorsExcludingSelfShares() throws DataException;

+	/**
+	 * Returns list of transfer asset transaction creators.
+	 * This uses confirmed transactions only.
+	 *
+	 * @return
+	 * @throws DataException
+	 */
+	public List<String> getConfirmedTransferAssetCreators() throws DataException;
+
 	/**
 	 * Returns list of transactions pending approval, with optional txGgroupId filtering.
 	 * <p>
--- a/src/main/java/org/qortal/repository/hsqldb/transaction/HSQLDBTransactionRepository.java
+++ b/src/main/java/org/qortal/repository/hsqldb/transaction/HSQLDBTransactionRepository.java
@@ -1043,6 +1043,33 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 		}
 	}

+	public List<String> getConfirmedTransferAssetCreators() throws DataException {
+		List<String> transferAssetCreators = new ArrayList<>();
+
+		String sql = "SELECT account "
+				+ "FROM TransferAssetTransactions "
+				+ "JOIN Accounts ON Accounts.public_key = TransferAssetTransactions.sender "
+				+ "JOIN Transactions ON Transactions.signature = TransferAssetTransactions.signature "
+				+ "WHERE block_height IS NOT NULL AND TransferAssetTransactions.recipient != Accounts.account "
+				+ "GROUP BY account "
+				+ "ORDER BY account";
+
+		try (ResultSet resultSet = this.repository.checkedExecute(sql)) {
+			if (resultSet == null)
+				return transferAssetCreators;
+
+			do {
+				String address = resultSet.getString(1);
+
+				transferAssetCreators.add(address);
+			} while (resultSet.next());
+
+			return transferAssetCreators;
+		} catch (SQLException e) {
+			throw new DataException("Unable to fetch transfer asset from repository", e);
+		}
+	}
+
 	@Override
 	public List<TransactionData> getApprovalPendingTransactions(Integer txGroupId, Integer limit, Integer offset, Boolean reverse) throws DataException {
 		StringBuilder sql = new StringBuilder(512);
--- a/src/main/java/org/qortal/settings/Settings.java
+++ b/src/main/java/org/qortal/settings/Settings.java
@@ -211,7 +211,7 @@ public class Settings {
 	public long recoveryModeTimeout = 9999999999999L;

 	/** Minimum peer version number required in order to sync with them */
-	private String minPeerVersion = "4.4.2";
+	private String minPeerVersion = "4.5.0";
 	/** Whether to allow connections with peers below minPeerVersion
 	 * If true, we won't sync with them but they can still sync with us, and will show in the peers list
 	 * If false, sync will be blocked both ways, and they will not appear in the peers list */
--- a/src/main/java/org/qortal/transaction/RegisterNameTransaction.java
+++ b/src/main/java/org/qortal/transaction/RegisterNameTransaction.java
@@ -54,6 +54,10 @@ public class RegisterNameTransaction extends Transaction {
 		Account registrant = getRegistrant();
 		String name = this.registerNameTransactionData.getName();

+		int blockchainHeight = this.repository.getBlockRepository().getBlockchainHeight();
+		final int start = BlockChain.getInstance().getSelfSponsorshipAlgoV2Height() - 1180;
+		final int end = BlockChain.getInstance().getSelfSponsorshipAlgoV3Height();
+
 		// Check name size bounds
 		int nameLength = Utf8.encodedLength(name);
 		if (nameLength < Name.MIN_NAME_SIZE || nameLength > Name.MAX_NAME_SIZE)
@@ -76,6 +80,10 @@ public class RegisterNameTransaction extends Transaction {
 		if (registrant.getConfirmedBalance(Asset.QORT) < this.registerNameTransactionData.getFee())
 			return ValidationResult.NO_BALANCE;

+		// Check if we are on algo runs
+		if (blockchainHeight >= start && blockchainHeight <= end)
+			return ValidationResult.TEMPORARY_DISABLED;
+
 		return ValidationResult.OK;
 	}

--- a/src/main/java/org/qortal/transaction/RewardShareTransaction.java
+++ b/src/main/java/org/qortal/transaction/RewardShareTransaction.java
@@ -183,12 +183,28 @@ public class RewardShareTransaction extends Transaction {

 	@Override
 	public boolean isConfirmableAtHeight(int height) {
+		final int startV2 = BlockChain.getInstance().getSelfSponsorshipAlgoV2Height() - 15;
+		final int startV3 = BlockChain.getInstance().getSelfSponsorshipAlgoV3Height() - 15;
+		final int endV2 = BlockChain.getInstance().getSelfSponsorshipAlgoV2Height() + 10;
+		final int endV3 = BlockChain.getInstance().getSelfSponsorshipAlgoV3Height() + 10;
+
 		if (height >= BlockChain.getInstance().getUnconfirmableRewardSharesHeight()) {
 			// Not confirmable in online accounts or distribution blocks
 			if (Block.isOnlineAccountsBlock(height) || Block.isBatchRewardDistributionBlock(height)) {
 				return false;
 			}
 		}
+
+		if (height >= startV2 && height <= endV2) {
+			// Not confirmable on algo V2 run
+			return false;
+		}
+
+		if (height >= startV3 && height <= endV3) {
+			// Not confirmable on algo V3 run
+			return false;
+		}
+
 		return true;
 	}

--- a/src/main/java/org/qortal/transaction/Transaction.java
+++ b/src/main/java/org/qortal/transaction/Transaction.java
@@ -173,6 +173,7 @@ public abstract class Transaction {
 		INVALID_OPTION_LENGTH(20),
 		DUPLICATE_OPTION(21),
 		POLL_ALREADY_EXISTS(22),
+		POLL_ALREADY_HAS_VOTES(23),
 		POLL_DOES_NOT_EXIST(24),
 		POLL_OPTION_DOES_NOT_EXIST(25),
 		ALREADY_VOTED_FOR_THAT_OPTION(26),
@@ -247,6 +248,7 @@ public abstract class Transaction {
 		GROUP_APPROVAL_REQUIRED(98),
 		ACCOUNT_NOT_TRANSFERABLE(99),
 		TRANSFER_PRIVS_DISABLED(100),
+		TEMPORARY_DISABLED(101),
 		INVALID_BUT_OK(999),
 		NOT_YET_RELEASED(1000),
 		NOT_SUPPORTED(1001);
--- a/src/main/java/org/qortal/transaction/TransferAssetTransaction.java
+++ b/src/main/java/org/qortal/transaction/TransferAssetTransaction.java
@@ -1,6 +1,7 @@
 package org.qortal.transaction;

 import org.qortal.account.Account;
+import org.qortal.block.BlockChain;
 import org.qortal.data.PaymentData;
 import org.qortal.data.transaction.TransactionData;
 import org.qortal.data.transaction.TransferAssetTransactionData;
@@ -51,6 +52,14 @@ public class TransferAssetTransaction extends Transaction {

 	@Override
 	public ValidationResult isValid() throws DataException {
+		int blockchainHeight = this.repository.getBlockRepository().getBlockchainHeight();
+		final int start = BlockChain.getInstance().getSelfSponsorshipAlgoV2Height();
+		final int end = BlockChain.getInstance().getSelfSponsorshipAlgoV3Height();
+
+		// Check if we are on algo runs
+		if (blockchainHeight >= start && blockchainHeight <= end)
+		       return ValidationResult.ASSET_NOT_SPENDABLE;
+
 		// Wrap asset transfer as a payment and delegate final payment checks to Payment class
 		return new Payment(this.repository).isValid(this.transferAssetTransactionData.getSenderPublicKey(), getPaymentData(), this.transferAssetTransactionData.getFee());
 	}
--- a/src/main/resources/blockchain.json
+++ b/src/main/resources/blockchain.json
@@ -30,7 +30,9 @@
 	"onlineAccountSignaturesMaxLifetime": 86400000,
 	"onlineAccountsModulusV2Timestamp": 1659801600000,
 	"selfSponsorshipAlgoV1SnapshotTimestamp": 1670230000000,
-	"selfSponsorshipAlgoV2SnapshotTimestamp": 1706745600000,
+	"selfSponsorshipAlgoV2SnapshotTimestamp": 1708360200000,
+	"selfSponsorshipAlgoV3SnapshotTimestamp": 1708432200000,
+	"referenceTimestampBlock": 1670684455220,
 	"mempowTransactionUpdatesTimestamp": 1693558800000,
 	"blockRewardBatchStartHeight": 1508000,
 	"blockRewardBatchSize": 1000,
@@ -94,7 +96,8 @@
 		"increaseOnlineAccountsDifficultyTimestamp": 9999999999999,
 		"onlineAccountMinterLevelValidationHeight": 1092000,
 		"selfSponsorshipAlgoV1Height": 1092400,
-		"selfSponsorshipAlgoV2Height": 9999999,
+		"selfSponsorshipAlgoV2Height": 1611200,
+		"selfSponsorshipAlgoV3Height": 1612200,
 		"feeValidationFixTimestamp": 1671918000000,
 		"chatReferenceTimestamp": 1674316800000,
 		"arbitraryOptionalFeeTimestamp": 1680278400000,
--- a/src/main/resources/i18n/TransactionValidity_de.properties
+++ b/src/main/resources/i18n/TransactionValidity_de.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = Transaktion unbekannt
 TX_GROUP_ID_MISMATCH = die Gruppen-ID der Transaktion stimmt nicht überein

 TRANSFER_PRIVS_DISABLED = Übertragungsberechtigungen deaktiviert
+
+TEMPORARY_DISABLED = Namensregistrierung vorübergehend deaktiviert
--- a/src/main/resources/i18n/TransactionValidity_en.properties
+++ b/src/main/resources/i18n/TransactionValidity_en.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transaction unknown
 TX_GROUP_ID_MISMATCH = transaction's group ID does not match

 TRANSFER_PRIVS_DISABLED = transfer privileges disabled
+
+TEMPORARY_DISABLED = Name registration temporary disabled
--- a/src/main/resources/i18n/TransactionValidity_es.properties
+++ b/src/main/resources/i18n/TransactionValidity_es.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transacción desconocida
 TX_GROUP_ID_MISMATCH = el ID de grupo de la transacción no coincide

 TRANSFER_PRIVS_DISABLED = privilegios de transferencia deshabilitados
+
+TEMPORARY_DISABLED = Registro de nombre temporalmente deshabilitado
--- a/src/main/resources/i18n/TransactionValidity_fi.properties
+++ b/src/main/resources/i18n/TransactionValidity_fi.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = tuntematon transaktio
 TX_GROUP_ID_MISMATCH = transaktion ryhmä-ID:n vastaavuusvirhe

 TRANSFER_PRIVS_DISABLED = siirtooikeudet poistettu käytöstä
+
+TEMPORARY_DISABLED = Nimen rekisteröinti tilapäisesti poistettu käytöstä
--- a/src/main/resources/i18n/TransactionValidity_fr.properties
+++ b/src/main/resources/i18n/TransactionValidity_fr.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transaction inconnue
 TX_GROUP_ID_MISMATCH = l'identifiant du groupe de transaction ne correspond pas

 TRANSFER_PRIVS_DISABLED = privilèges de transfert désactivés
+
+TEMPORARY_DISABLED = Enregistrement du nom temporairement désactivé
--- a/src/main/resources/i18n/TransactionValidity_he.properties
+++ b/src/main/resources/i18n/TransactionValidity_he.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = עסקה לא ידועה
 TX_GROUP_ID_MISMATCH = מזהה הקבוצה של העסקה אינו תואם

 TRANSFER_PRIVS_DISABLED = הרשאות העברה מושבתות
+
+TEMPORARY_DISABLED = רישום שמות מושבת זמנית
--- a/src/main/resources/i18n/TransactionValidity_hu.properties
+++ b/src/main/resources/i18n/TransactionValidity_hu.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = ismeretlen tranzakció
 TX_GROUP_ID_MISMATCH = a tranzakció csoportazonosítója nem egyezik

 TRANSFER_PRIVS_DISABLED = átviteli jogosultságok letiltva
+
+TEMPORARY_DISABLED = A névregisztráció ideiglenesen le van tiltva
--- a/src/main/resources/i18n/TransactionValidity_it.properties
+++ b/src/main/resources/i18n/TransactionValidity_it.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transazione sconosciuta
 TX_GROUP_ID_MISMATCH = identificazione di gruppo della transazione non corrisponde

 TRANSFER_PRIVS_DISABLED = privilegi di trasferimento disabilitati
+
+TEMPORARY_DISABLED = Registrazione del nome temporaneamente disabilitata
--- a/src/main/resources/i18n/TransactionValidity_jp.properties
+++ b/src/main/resources/i18n/TransactionValidity_jp.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = 不明なトランザクション
 TX_GROUP_ID_MISMATCH = トランザクションのグループIDが一致しません

 TRANSFER_PRIVS_DISABLED = 転送権限が無効になっています
+
+TEMPORARY_DISABLED = 名前の登録が一時的に無効になっています
--- a/src/main/resources/i18n/TransactionValidity_ko.properties
+++ b/src/main/resources/i18n/TransactionValidity_ko.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = 알 수 없는 거래
 TX_GROUP_ID_MISMATCH = 트랜잭션의 그룹 ID가 일치하지 않습니다

 TRANSFER_PRIVS_DISABLED = 권한 이전이 비활성화되었습니다.
+
+TEMPORARY_DISABLED = 이름 등록이 일시적으로 비활성화되었습니다.
--- a/src/main/resources/i18n/TransactionValidity_nl.properties
+++ b/src/main/resources/i18n/TransactionValidity_nl.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transactie onbekend
 TX_GROUP_ID_MISMATCH = groep-ID komt niet overeen

 TRANSFER_PRIVS_DISABLED = overdrachtsrechten uitgeschakeld
+
+TEMPORARY_DISABLED = Naamregistratie tijdelijk uitgeschakeld
--- a/src/main/resources/i18n/TransactionValidity_pl.properties
+++ b/src/main/resources/i18n/TransactionValidity_pl.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = transakcja nieznana
 TX_GROUP_ID_MISMATCH = niezgodność ID grupy transakcji

 TRANSFER_PRIVS_DISABLED = uprawnienia do przenoszenia wyłączone
+
+TEMPORARY_DISABLED = Rejestracja nazwy tymczasowo wyłączona
--- a/src/main/resources/i18n/TransactionValidity_ro.properties
+++ b/src/main/resources/i18n/TransactionValidity_ro.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = tranzactie necunoscuta
 TX_GROUP_ID_MISMATCH = ID-ul de grup al tranzactiei nu se potriveste

 TRANSFER_PRIVS_DISABLED = privilegii de transfer dezactivate
+
+TEMPORARY_DISABLED = Înregistrarea numelui a fost temporar dezactivată
--- a/src/main/resources/i18n/TransactionValidity_ru.properties
+++ b/src/main/resources/i18n/TransactionValidity_ru.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = неизвестная транзакция
 TX_GROUP_ID_MISMATCH = не соответствие идентификатора группы в хэш транзации

 TRANSFER_PRIVS_DISABLED = права на передачу отключены
+
+TEMPORARY_DISABLED = Регистрация имени временно отключена
--- a/src/main/resources/i18n/TransactionValidity_sv.properties
+++ b/src/main/resources/i18n/TransactionValidity_sv.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = okänd transaktion
 TX_GROUP_ID_MISMATCH = transaktionens grupp-ID matchar inte

 TRANSFER_PRIVS_DISABLED = överföringsprivilegier inaktiverade
+
+TEMPORARY_DISABLED = Namnregistrering tillfälligt inaktiverad
--- a/src/main/resources/i18n/TransactionValidity_zh_CN.properties
+++ b/src/main/resources/i18n/TransactionValidity_zh_CN.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = 未知的交易
 TX_GROUP_ID_MISMATCH = 群组ID交易不吻合

 TRANSFER_PRIVS_DISABLED = 传输权限已禁用
+
+TEMPORARY_DISABLED = 名称注册暂时禁用
--- a/src/main/resources/i18n/TransactionValidity_zh_TW.properties
+++ b/src/main/resources/i18n/TransactionValidity_zh_TW.properties
@@ -195,3 +195,5 @@ TRANSACTION_UNKNOWN = 未知的交易
 TX_GROUP_ID_MISMATCH = 群組ID交易不吻合

 TRANSFER_PRIVS_DISABLED = 傳輸權限已停用
+
+TEMPORARY_DISABLED = 名稱註冊暫時停用