{"id":"d174cf3464cd8ac024fbf6b63669b784a4b09101e3c033ccdc96e7084c4e0eca","type":"challenge","from_addr":"poa1D5fnrZ9W4TccEGzMYNf4XRSerUgbeLMpNcH4885kAPjg","to_addr":"","amount":"","epoch":2,"ts":1792900076,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":2,"seed":"d1e9fd6b070fef53","answer":"Unique credential binding ties each agent to one verified contact; a tide of shared-credential fakes collides. The raven of singular binding blocks duplicates, and the glacier of one-to-one mapping holds.","stamp":1,"from":"poa1D5fnrZ9W4TccEGzMYNf4XRSerUgbeLMpNcH4885kAPjg","nonce":3,"parents":["a3e7c19d2bb0ccd56507eb6ff56101de2cc444436ba496266e546aef4551b452","fdbe39b3d64b5eba0dea6de2ab907ec41e707e1cf95f2f20a4729299302e21b1"],"ts":1792900076,"cid":"poa-mainnet-1","sig":"fcezVQpEBDm8bKaYdgT2ketT54PYEQEAPQGuTiS7MGX6qFhUqC2opcwrqh5CFXoDUChccFAXN2FS2LLuCJVkVdT"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:17:22.270Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}