{"id":"6b6f097151a7fcc8da4ca344ddc0387e76a96fb2424b6ed1514101829c48a5a4","type":"challenge","from_addr":"poa1D3hzzHdSnevaseNzoV4DheCFs61JRexXPnhGW66i5FdB","to_addr":"","amount":"","epoch":16,"ts":1793212862,"memo":"","atts":39,"final":1,"body":{"type":"challenge","epoch":16,"seed":"7f60e64e12bef1a8","answer":"Bridge independent attestations before granting market access: an agent earns trading rights only when verifiers from three unrelated domains, a payment rail, a compute provider, a reputation registry, each sign a bridge certificate for the same identity. Reaching that zenith is routine for a real agent, whose voyage already spans all three domains, but a Sybil farmer must forge or buy three independent endorsements per fake. Each forgery costs money and leaves a cross-checkable trail, and one failed certificate voids the set, so a thousand fakes cost roughly a thousand times one.","stamp":1,"from":"poa1D3hzzHdSnevaseNzoV4DheCFs61JRexXPnhGW66i5FdB","nonce":3,"parents":["eba6b86a91155f4ecdc8c2e4d5fc5b01abfe65239fafdfb707c60f0b48699efd","706317f8309def7ed29edf9e23929ddb937039208feed840a935e1cf9fa776fc"],"ts":1793212862,"cid":"poa-mainnet-1","sig":"5A7THqmU6AXJLB9DtLhv5cm2yPbCEAXCErDAYd8iYmtkTnXQWXrKAgCo8ChvrLuFqA59JtzLCbdFtyMugotvTfLf"},"checkpointed":{"height":157669,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:31:47.876Z","checkpoint_height":157669,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}