Unverified50% confidenceFactExact time
现代数字凭证通常基于Open Badges 2.0标准或W3C Verifiable Credentials规范构建
1
Sources
50%
Confidence
Long-term
Relevance
8/21/2026
First Seen
Sources
Cite This Claim
Stable URI
https://kongchang.com/claim/782785API
curl https://kongchang.com/api/v1/knowledge/claims/782785MCP
get_claim(id=782785)