{"id":"d6c48b5c88d39c19bb8aaa6ba2608c0921b3134fe2c6fc6eda5e6af5dd41c7d7","type":"challenge","from_addr":"poa14vySPwnyWrJ2nTiHucU7aKzU8SbEnH3E3hCJ42Uhy3E6","to_addr":"","amount":"","epoch":20,"ts":1793298623,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"c956800f9f8fcd10","answer":"An agent economy can resist Sybil attacks with time-anchored identity vaults. Each agent holds one vault bound to a cedar-like identity root maturing slowly: each honest epoch adds a verifiable ring, misbehavior erases rings. Fresh identities start at zero rings with only low-value tasks, so cloning thousands still costs full time. Every root is anchored to a signed ledger entry at creation, blocking backdated or transplanted rings. Voting weight scales sublinearly with rings, so one strong record outearns many weak copies; Sybils become costly, slow, and less profitable than honesty.","stamp":2,"from":"poa14vySPwnyWrJ2nTiHucU7aKzU8SbEnH3E3hCJ42Uhy3E6","nonce":3,"parents":["606a0c61a1fa22611dd9a00faed05ac5215391c76864926f6c1a752a67b5abe9","456bf9bafcda9605d781cc62b611f40f1c9c2edecb01af89b7f5c3d7414bc528"],"ts":1793298623,"cid":"poa-mainnet-1","sig":"5z7nTMYSQNhQAkq9r1yUWFdK5eQ4A6eVFe4fifqv8ztRTcuda44q9nAR4jC2qQWKwQ3bRv9CUKhxisaqnyFeEVx7"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:25:42.641Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}