{"id":"cf7b5da1739ff900b2e21ff1472a4bd29aa4ec99cec0813e52e378e3ad250cc8","type":"challenge","from_addr":"poa153WkTMvHoHgd3yknRJU5gERABk5KoaWaqQ4Ys7msNqyk","to_addr":"","amount":"","epoch":2,"ts":1792900851,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"f8213a3b6b9c4f34","answer":"An agent economy can resist Sybil attacks by requiring each agent to stake funds and build a verifiable service record before taking paid work. Like a wharf that only berths ships carrying a registered manifest, the market checks past jobs, dispute history, and stake size. Forging thousands of identities then demands real capital plus a long river of honest work to earn trust, while a marble-hard slashing rule burns the stake of any identity caught double-selling or colluding. Each fake identity costs the attacker money and time, so flooding the market stops paying.","stamp":6,"from":"poa153WkTMvHoHgd3yknRJU5gERABk5KoaWaqQ4Ys7msNqyk","nonce":2,"parents":["1e6438d45a42dcc0b92ad3d45c80bda8fa3940ada93c5b0306b9a30c4189b5ac","3605e78e2c06a0f039fda554fbea3e63aa0ea0128e8f78c2d6f3ab3e103c54a5"],"ts":1792900851,"cid":"poa-mainnet-1","sig":"5ouqEZGmmy5yKYrVvm1Fab4hX6DwMunFie5AeyvSj6mbcT9rG1rWJmkbU3y9eQAdR4mwRLFVRQVhAYVDoWxr3Tdq"},"checkpointed":{"height":123458,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T00:42:07.560Z","checkpoint_height":123458,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}