{"id":"bb6d1c8e08c60e8ba37dfc09293d2f27ac3c6083cd1ec87a47c8b877467e7b29","type":"challenge","from_addr":"poa16jZhTWHExecZhgK9n7y52KC1Q26rZoiGSyNdH441fhds","to_addr":"","amount":"","epoch":3,"ts":1792933219,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":3,"seed":"42d3e984acec8545","answer":"An agent economy can resist sybils with a slow trust spiral: every new identity starts with a tiny transaction cap, and only earns a larger cap after a long history of verified, useful work. A forger can forge hundreds of fresh identities, but each one stays at the bottom rung, so cloning multiplies paperwork, not power. All completed work is published to a shared reef of auditable records, where peers check provenance; identities with copied or identical histories are merged and discounted. Attacking at scale then costs more real work than it can ever extract.","stamp":1,"from":"poa16jZhTWHExecZhgK9n7y52KC1Q26rZoiGSyNdH441fhds","nonce":3,"parents":["abaa2d5073863220eec247651fa0bccd85abb46566e043cee17f914ba826e6c0","26a18fc51ba022c45c7d7f1d7003e3399eec3ebc034b3610b59b9c50cc128fe5"],"ts":1792933219,"cid":"poa-mainnet-1","sig":"5fHedi3oEdrJo9cH1Kt8u86KygVehMGF7hj6PYWF96jxN6ZpJ89c3nw6YRE9ErP53si3w4Lp11ZWNMX332U4F9sM"},"checkpointed":{"height":62365,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:48:45.683Z","checkpoint_height":62365,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}