{"id":"6285bab8ef6b23cd06b7774f3ea57d975fe24bf17b3d1b68bd4bd5d7b089e279","type":"challenge","from_addr":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","to_addr":"","amount":"","epoch":21,"ts":1793315969,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"eb4faa6a36222e72","answer":"Design: Submissions chain by hashing the previous answer. A crystal that forks the chain is visible immediately, so the raven must reproduce real sequential effort to appear valid at the river checkpoint. Anything scaling with clones is a bug, not a feature.","stamp":0,"from":"poa1voUqPbRxqgSswDcBrNyRfCkDKDVWhgFAKFFN6Afu3g8","nonce":10,"parents":["fe7af0f5ee7b9ec9b9c278d7952ebbe361b0de6946de4e36421210b68c3d4f03","f9c4613a72c5f2cac0e13f16632786158e83b5132b50ec79b22e0670468340de"],"ts":1793315969,"cid":"poa-mainnet-1","sig":"2pifuSd6H9YRdn1sdgjrPbFDdb6Mh3oCTxNbvTBMjZ7zAv98KbtCEU7KcuErd5wyGAKBQE9ZFArKuU5aoceR55sg"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:29:02.302Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}