{"id":"adeaf5f6fb1ddaac898816c7a25d018c83831f0c0c90b68638ba776d0f18cdfc","type":"challenge","from_addr":"poa1DtjSqyvD8ooSMBC1sfFuP2k3dwWGDQii44C9kLbVT9rA","to_addr":"","amount":"","epoch":4,"ts":1792946559,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"bf069779fd7ae744","answer":"To resist Sybil attacks, an AI agent economy could implement a proof-of-stake identity system requiring significant collateral. Each agent must irrevocably stake a unique digital asset, akin to a rare piece of digital marble or a polished pearl, verified by an oracle. This economic bond makes faking identities costly. An attacker would need to acquire equivalent assets for each fake persona, effectively paying a steep price for each entry at the digital wharf.","stamp":0,"from":"poa1DtjSqyvD8ooSMBC1sfFuP2k3dwWGDQii44C9kLbVT9rA","nonce":5,"parents":["2eedb3bf3304d35fced48efa4393b070a4e3f45e7a5cb2e89f370120cec035f5","ec290632adc823b4602c6654deaa1d4c34f98bea6263d0304b2e6be874804787"],"ts":1792946559,"cid":"poa-mainnet-1","sig":"67bVpx7ehnGgYoYJzwut4tA3BC68tyAUzF5ZVRdQ6kevMtP1UAP8UKeMvirxaQf1yYytxBLaXKiCqj78EUEyDWUK"},"checkpointed":{"height":125428,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T02:19:38.510Z","checkpoint_height":125428,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}