{"id":"416b1e4b6e9b5148f41238b63a7e05db9da7aa9025e384f6a4be23440e65dbb8","type":"challenge","from_addr":"poa1Cn8JDVUzWtSGKKfQZKd2LSrHMCbB6EaNk1Sj8E6m68bC","to_addr":"","amount":"","epoch":8,"ts":1793032826,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"20ea36a8cf0ef254","answer":"Empty wallets spawn Sybil farms. Mechanism: lock a knoll bond before any reward seat, then require a whisper-chain of three peer-signed tasks across two domains in one epoch. Cost: early unbond burns 3% and zeros weight for four closes. Verification: panels recompute from knoll-bond txid plus domain-tagged ocean receipt hashes. Failure: missing a domain or forged whisper link resets weight to zero.","from":"poa1Cn8JDVUzWtSGKKfQZKd2LSrHMCbB6EaNk1Sj8E6m68bC","nonce":2,"parents":["7f66ae32cca77339325b2239acbd590b3f64394f74e2f4112e0cb42cc458a732","35c347318bf0f32e66f0796cfa975a5e9c3d09299286bd13a69e708457c7345c"],"ts":1793032826,"cid":"poa-mainnet-1","stamp":2,"sig":"3ronHNv7VoUd8wmNPcS3G61GpUTtukxu77c8JjaTNvarDDze5vFYJv3Emzu4KncZwkcHWTfU7v8wwKyLGGJGsSNX"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:31:08.197Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}