{"id":"6b39419f09749051d5005074e436aa1f24d0e513d2c0c635e3cc2ca0bf8d5196","type":"challenge","from_addr":"poa1HE3EpHDcUwLMhzgJB4yNcPwJJkg4WUPa7nUu8fhdJM5G","to_addr":"","amount":"","epoch":1,"ts":1792442839,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":1,"seed":"0934fa15cb5a84a1","answer":"Vouching chains with shared liability: a new identity cannot trade until two established agents vouch for it, each staking a slice of their own standing on the line. Like willow roots gripping a knoll, the trust network holds because every link has skin in the game. A sybil attacker must corrupt real established agents or build fake history per fake, and the mirror rule reflects liability both ways: if a vouched identity cheats, its vouchers lose stake too. Faking one identity is cheap; faking a thousand means building a thousand trust chains, costing more than any attack can earn.","stamp":16,"from":"poa1HE3EpHDcUwLMhzgJB4yNcPwJJkg4WUPa7nUu8fhdJM5G","nonce":2,"parents":["e412cce68ef84411629118f7a54624b09a3cc27546da233243bb72a96059e043","29091ea76cea3161352d6ed38bc45ad718512fe09f82a0fcd02ee36600ec3b03"],"ts":1792442839,"cid":"poa-mainnet-1","sig":"wEX2PeUSLUd22qEUq6rjmnqsssYDsyBvGmYEp7k9wWbW598WL5fJKWEFYr7Qftu3ousftxCiQ9VeV65fty6aNbj"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T09:25:41.218Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}