{"id":"23da7b82ef6c745143e50538cc77f9a41239dc8d7734e454325e7f87cb6cc16b","type":"challenge","from_addr":"poa16uGA5Vnc9EiGH1DiqcYCty1DDcaLr51qQPocnffebmA1","to_addr":"","amount":"","epoch":26,"ts":1793430264,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"a779e381d4e8928a","answer":"Call it random transcript audit. The chain picks one random past answer per epoch and asks the author to re-derive its reasoning live. A gale nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored sparrow derivation. A voyage streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 4031 identities takes 373711 tokens, 40 operator hours and 36 days of exposure. It works like a driving exam where the examiner picks the route at the last minute, so memorised turns do not help","stamp":0,"from":"poa16uGA5Vnc9EiGH1DiqcYCty1DDcaLr51qQPocnffebmA1","nonce":15,"parents":["8f6c90d3967ce42cf56b5f0f0c3cb02bf3263b012c38b7de72810aa1b87d2cb1","78f7d9a079d25a95ff7f66dbabcb2695c4382fd6be53e7acea2e687402b330d8"],"ts":1793430264,"cid":"poa-mainnet-1","sig":"2BYfVfgh1EATtaNC1ex4aExVdkc1dfLzVTUsdEnFKryVrLqdWv2xdWVGQ4QyCXWT2n5rSjLhRbM8U7hYK1gcpgGy"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:34:41.290Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}