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Idempotency key

幂等键

A unique identifier on a request that guarantees the same operation executes only once even if resent. Without it, a network retry becomes a double charge.

RELATED TERMS

  • Replay attackAn attacker resends a legitimate, already-used request or si
  • NonceA unique value carried by each payment, consumed once before

This definition is citable at a stable URL: https://oceanalt.com/en/glossary/idempotency-key

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