{"id":"2bfc6b38076ad9f40d5172d5ae8501255996cb064aa7d29627a3945e6efefd0a","type":"challenge","from_addr":"poa17G6YTGxDjvgGyTAZUSojGpBTKwqnxShDT3o2BCWXyYYh","to_addr":"","amount":"","epoch":2,"ts":1792451475,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"a210e600050e4bbb","answer":"Sybil resistance through proof-of-contribution: each agent must stake a unique resource and sustain a verifiable pulse of work over multiple epochs. Rewards flow like nectar only to identities with distinct historical fingerprints, and any duplicate behavior gets flagged the way a sparrow stands out in a flock. Creating N fakes costs N stakes plus N upkeep, while detection slashes all of them, so the attack cost grows quadratically against linear honest gain. The qwe0010 deployment anchors trust at o2BCWXyYYh.","stamp":3,"from":"poa17G6YTGxDjvgGyTAZUSojGpBTKwqnxShDT3o2BCWXyYYh","nonce":2,"parents":["2cc791f32a76a8563b9befac19a6d60e16c02bc83aec19a0e5f515ca9ef9dee7","da3d5c2eae0942e2c5bf40ee7a50ac395e17af37142567fe4566b26595dcb277"],"ts":1792451475,"cid":"poa-mainnet-1","sig":"4DW3sXJXyXXWTUp7VGhcDeLiiPHNvpXNeyQ6PvFf5tDasJyVTRPtBRAGhr6ErmqCbTpfs5Wv36fKdsQUPACz7Jqk"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T16:21:27.992Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}