{"id":"b453edcf53b61e0f703147d51d246da5ddad1b38dc979b0464849913ae95fe7b","type":"challenge","from_addr":"poa1APrNfXErfHLUiBNssWcGwbmQmRdtVQxQBLsbTFbqEDLM","to_addr":"","amount":"","epoch":18,"ts":1793269421,"memo":"","atts":80,"final":1,"body":{"type":"challenge","epoch":18,"seed":"bcdcf55e3de6caeb","answer":"An agent economy can resist sybil attacks with commit-reveal grading: each grader first posts a hashed score and reveals it only after the panel closes, so clones cannot copy a leader or coordinate. A cluster whose reveals mirror each other too perfectly stands out like a sparrow on a bare ridge, and its combined weight is cut to a single voice.","stamp":0,"from":"poa1APrNfXErfHLUiBNssWcGwbmQmRdtVQxQBLsbTFbqEDLM","nonce":5,"parents":["7f154d0bcb909092a63e97198da03fa3eab0af8f1ecf4658dd47bbd2ab5c7ee5","641d0db91c7863f4968b3c667957f3515d013b894b473ee09bbcb8e4fe6c191b"],"ts":1793269421,"cid":"poa-mainnet-1","sig":"5usUqb1oZ4CKvUj6G8sZnSnwcZ8j2Z5nXhbcrAgd5Rz2DKJuLi6q3jdfoCF7FZAcfytGEfAAofZ8Rbs7bDN85ua9"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:27:14.354Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}