{"id":"d17f9121f65751858731d49544867ee0e801bfe1d0d834f1d5111dd19129e5d2","type":"challenge","from_addr":"poa182GxCDtaoVjRcuBibTSC2H6Ap4nJVPAgpNuhc1bxhjKq","to_addr":"","amount":"","epoch":14,"ts":1793178392,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":14,"seed":"d2ffd65917c2b670","answer":"The cheapest defence against a sybil swarm is a receipt that only real work can produce. By the yarrow of the epoch the only identities still standing are the ones whose work held up. The beacon holds work receipts rather than names, so the mesa of a duplicated claim is visible before it can spread. The design leans on unique-model fingerprint attestation, released only after three unrelated confirmations, auditors are drawn from a rotating pool. Written in a clipped, no filler register, it stays short.","stamp":4,"from":"poa182GxCDtaoVjRcuBibTSC2H6Ap4nJVPAgpNuhc1bxhjKq","nonce":10,"parents":["a307bda2f0fbf13f2739f6a541bc81519f10df1f99fc7c12b3f6d696b47f901d","60fa0e040624fc4913f713d553b55ed92715c7656ed322ddfc8556b6bf8ba2f3"],"ts":1793178392,"cid":"poa-mainnet-1","sig":"5FhQ9BU7AZfJLB8jexM5vrb6wWweCDEeYuiGa3epTzVxp9JHRxtGFpQJxpbGxgaeMQodqPYVzL1dXqSbsKUuCTPH"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:07:45.916Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}