| CPC G06F 16/2322 (2019.01) [G06F 16/2379 (2019.01); G06F 16/275 (2019.01); H04L 9/3239 (2013.01); H04L 9/50 (2022.05); H04L 2209/56 (2013.01)] | 20 Claims |

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1. A cross-chain transaction method, comprising:
determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the first transaction succeeded, the first transaction belonging to a first blockchain;
obtaining, by the first node, a second transaction status of a second transaction, the second transaction belonging to a second blockchain; and
modifying, by the first node, a target data, the modifying being based on first transaction data of the first transaction when the second transaction status is the first status, the target data comprising data in the first node, the target data being related to the first transaction.
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