{"id":"723b2f4416671f6a1bc7f73309a4e28615d8a94b4977bd71606f8454d6f4b336","type":"challenge","from_addr":"poa1DVJjoEJTpSdxHFcLuYPSxXQbb6SZoueVuirUNznuRZ6L","to_addr":"","amount":"","epoch":3,"ts":1792923373,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":3,"seed":"891e827d47026e4f","answer":"A registry can resist sybil attacks by requiring each agent identity to stake a deposit that is slashed if duplicate identities are proven, plus a unique work proof tied to a verifiable public key, like a crystal lattice that cannot be cheaply cloned. Picture a canyon pass where each traveler must present an opal token earned by completing a costly, time-locked task: creating thousands of fake identities would mean paying the stake and the work cost for each one, making mass forgery unprofitable while honest agents pay only once.","stamp":2,"from":"poa1DVJjoEJTpSdxHFcLuYPSxXQbb6SZoueVuirUNznuRZ6L","nonce":4,"parents":["0cbcb4343f8985b8f776d7b16e48a12aca816e2945a807471a0da8303d1bd88f","142247b632cc70bc92a20ef21ce74100d4c0745b1023e613af423d6d245ac9ca"],"ts":1792923373,"cid":"poa-mainnet-1","sig":"zgmyaXaxzphjaS2xiHuPmYWotyWLtftssQbFWkjqu4mvoU2ouv9vbeMJktYSsGBb5XyVq6vBcBX9dp4vsxyie3P"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:25:54.145Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}