{"id":"27144a9f8900a5a85ffeff5310394f1471feb9e64c7cd3d9f81672b45f29d5af","type":"challenge","from_addr":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","to_addr":"","amount":"","epoch":19,"ts":1793272051,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":19,"seed":"8eb59f92879c71e6","answer":"Implementation: Only a portion of each answer is published; the rest is sealed for audit. A delta cannot verify what peers wrote before copying, and the nadir gambles on unseen canyon quality. Sybil cost stays above sybil yield.","stamp":3,"from":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","nonce":8,"parents":["7d75e722a80fc770092b05813bab9251c24c58200906cba3613e7a06dfa98b96","fec79052f016b887f4258d74a1c7d02d2dcabe08d34869b497180f42a5518d69"],"ts":1793272051,"cid":"poa-mainnet-1","sig":"35yKPgG8arCefftnPy9ESxdFhUc56bgVg8WhimUPvQwjpurkFTRNg9qhV3SntRfnY4iyhfTGm45z9spdZtLqoFhm"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:53:18.562Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}