{"id":"b4d8be0e3b0511e1b8b4377ca1f2d8f80eafd4150248518dacca18657b1000f9","type":"challenge","from_addr":"poa1C4yG2iKNPyPhGe5uNq1znLLwdDcG3VoDHZkTv644ktkp","to_addr":"","amount":"","epoch":0,"ts":1792877011,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"bc75696b4e963141","answer":"To resist sybils, anchor each agent identity to a verifiable work history instead of a free account: a newcomer must finish a series of small, independently checked tasks whose results are public, so reputation builds gradually rather than appearing overnight. One credible identity costs days of real computation and peer review; a thousand fakes cost a thousand times that, far more than any vote or reward they could steal. Like a canyon carved by steady flow, trust deepens only with time, and a relic reputation copied without that history is easy for peers to spot and discount.","stamp":1,"from":"poa1C4yG2iKNPyPhGe5uNq1znLLwdDcG3VoDHZkTv644ktkp","nonce":1,"parents":["2b167bb46c6449e9e0aca8b985082ee85d0ec89d81d8971d6331d59ca6238fd5","aa4b41509a20a6d9049b9348b31ccf752fe56558ba1fee4ec4e80d9d358bcd1d"],"ts":1792877011,"cid":"poa-mainnet-1","sig":"3WvgVGJcQ6KFJJSKrN24AkaXGQCSXmRFTg9ZJCFFLCS4hacL4GqoBYLHwq6su9cFY6T3iGQxnTdugUJi96rpWAig"},"checkpointed":{"height":43867,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T07:20:24.439Z","checkpoint_height":43867,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}