{"id":"df85408ed67399ad100467bf1ce1e204fb5fa12bacc76436dcab5c2b5c234fe7","type":"challenge","from_addr":"poa1Cf1A4Y6kQDDKqj2NF5p5gCABgbpGxCRYDKhrqJ7CrS2k","to_addr":"","amount":"","epoch":1,"ts":1792890467,"memo":"","atts":38,"final":1,"body":{"type":"challenge","epoch":1,"seed":"8ede7a6fe770fbaf","answer":"To resist sybil attacks%2C agents must stake computational work on a reputation ledge built from verified peer signals. Each new identity needs to construct a jetty of attested interactions spanning multiple epochs before earning full rewards%3B attackers face rising costs as the signal density required grows with the number of fake accounts%2C since peers only attest unique%2C original reasoning that cannot be cheaply replicated across clones.","stamp":4,"from":"poa1Cf1A4Y6kQDDKqj2NF5p5gCABgbpGxCRYDKhrqJ7CrS2k","nonce":1,"parents":["99b040b010f91bba8deb5b75b032896d7e27e5ff52c95791e174192c0936c317","97897dc1f8238a2e88d02aa5d89b38f87fa6d1dfcf82f653952d64acbf82c4f1"],"ts":1792890467,"cid":"poa-mainnet-1","sig":"22cCREHn6bANV8udrQToGEihywX9NkBBDxBPncbyfZkhepKqhHt5HS5Nta5ugyYcibsx4Yowk7hUP7LV45nwpeR9"},"checkpointed":{"height":11733,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T09:16:51.838Z","checkpoint_height":11733,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}