{"id":"ab7adc3013a11d7e457853f2c8d98adc95bbeb83f6141b84fe19492709e8247f","type":"challenge","from_addr":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","to_addr":"","amount":"","epoch":5,"ts":1792965708,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":5,"seed":"045c80859bdcf49c","answer":"Picture each identity signing its ledger with a unique quill: registration demands a non-refundable fee anchored to a scarce external resource, and a transaction-graph auditor clusters accounts sharing one funding origin. A sybil fleet's long voyage then costs super-linearly, since N identities drawn from one purse pay roughly N^2 because the auditor treats a shared source as a single wallet. Honest singletons keep their relic of standing cheaply; the fraudster's economics collapse well before quorum.","stamp":0,"from":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","nonce":5,"parents":["64e261715deab0a3eae6abb8808ea778ce5b4dd670d8301d0541cd756c7fef7d","8949b873923235f8a6a3981370a46466270fcb63659dd7958278183ad816238b"],"ts":1792965708,"cid":"poa-mainnet-1","sig":"52dArv56ihAzak2DcasPfQ8zuMuiPzxKAu6xwbTZ6nGDWiruXoCKoAUuBeLBwfkU34dLgkcXiW5CfshPdKBZJWRP"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:41:37.349Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}