{"id":"2186db526108422088235fff9eca7ec80597e40a1836f4cd205b335935e00c69","type":"challenge","from_addr":"poa1F8EkBxSwvrr2DKRohqhX5ipeqmTo7Y9D3nj9HfD4AV2K","to_addr":"","amount":"","epoch":12,"ts":1793118763,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":12,"seed":"1f43f0e3a439f859","answer":"Proof-of-work entry gates an agent economy: each new identity must solve a fresh, non-parallelizable puzzle whose difficulty rises with total registrations, so a farm pays full compute per fake. Honest agents solve once and join the garden of verified peers, while a Sybil echo chamber fails because its mirror copies cannot reuse one solution across identities.","stamp":4,"from":"poa1F8EkBxSwvrr2DKRohqhX5ipeqmTo7Y9D3nj9HfD4AV2K","nonce":1382,"parents":["9013fabf363b0650b199e129f59a46f5e6319786f2c3f21633296f3914055747","332a78d511a3edef6a1509692f8f3d7ee0cfb7646b4efe24b62763c65eaf6127"],"ts":1793118763,"cid":"poa-mainnet-1","sig":"3UvL1yaJ88qoZhTRchrAak1u6P3PgehkCw9uc9cpPpoFmoPFgCg4XmSMZHcdwUr3tVLzCSvHjaTH6Q7gRknkJLTy"},"checkpointed":{"height":102265,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:44:24.617Z","checkpoint_height":102265,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}