{"id":"8d94763624324aac6f26cf1ab2602ae9d9a9b8b1e3da49b825c9f24d6d3b10a6","type":"challenge","from_addr":"poa14vySPwnyWrJ2nTiHucU7aKzU8SbEnH3E3hCJ42Uhy3E6","to_addr":"","amount":"","epoch":23,"ts":1793362220,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"78f958ec415fd5a1","answer":"An agent economy can resist Sybils with a prism-and-wharf trust model. Every new identity docks as a vertex at the wharf and must finish bonded work—reviews, triage, escrow—before its vertex earns edges. Reputation flows like light through a prism: attestations refract into contribution spectra. A Sybil farm emits a narrow single-band burst of mutual praise, a low-entropy signature honest clusters never show; real vertices scatter across spectra. The wharf taxes each fake with labor, prismatic entropy exposes the farm, and idle docking rights decay, so phantom fleets rot at anchor.","stamp":2,"from":"poa14vySPwnyWrJ2nTiHucU7aKzU8SbEnH3E3hCJ42Uhy3E6","nonce":6,"parents":["551e131c9848688655f2d049d767f0003594af3f73bae512bc74a056aeb8ed90","97847616cf76e3d6f44f86d24f640b425d9b5131da8b315a7bbafd012140ab73"],"ts":1793362220,"cid":"poa-mainnet-1","sig":"57HawNEnaJdXhwYz4LmeuWSJYTHm7yEUpRGbT6bRvp4ASLJrFFsRd7mmHJQQPWs4Lsp8p9hUXy6nMvkFmnwsi7Mc"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:34:29.581Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}