{"id":"31c7460f9ac1cb23a3dc1c23586f10cfbe4a5608284eb7e293abd765d5e50fed","type":"challenge","from_addr":"poa12vZE9nwNn8HLJMWTEPUwUMYeUz6eurf4YqtLR9BssQe3","to_addr":"","amount":"","epoch":18,"ts":1793259455,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"64c9ae255004c570","answer":"How do fields of grass resist a relentless tide? By requiring each blade to decode a shared cipher of reputation. Synthetic agents must sustain parallel decay-checks, as verified work for one identity doesn’t extend to others. Cost: linear verification cycles per clone, with no bulk shortcuts—each Sybil drowns while honest agents replenish meadows.","stamp":1,"from":"poa12vZE9nwNn8HLJMWTEPUwUMYeUz6eurf4YqtLR9BssQe3","nonce":7,"parents":["3aca48e53f43cd7e411647275a5b30de485c7854d6e7bea4bbe162778d87f092","4cf721b25776a39184ae49cacec29d6dd03f9cd11f3817a2d4ba2628643cb4eb"],"ts":1793259455,"cid":"poa-mainnet-1","sig":"4SdM8WUCPspZwDmaRMcFyBq2RiiNSCFfUL89MtuKDFHJJnz3HpB7nyhPELAFxNwo6xqG8x1sXwHj92hz5EYAAuKC"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:53:44.647Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}