[KongchangAI]
Unverified85% confidenceFactTime unknown

旅行支票安全性建立在'两次签名'机制上:购买时签一次,兑换时当场再签一次核对,因此绝不可提前在两处都签名,否则等同于现金失去防盗保护

1
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85%
Confidence
Long-term
Relevance
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Stable URI
https://kongchang.com/claim/132889
API
curl https://kongchang.com/api/v1/knowledge/claims/132889
MCP
get_claim(id=132889)