{"id":"d8ed0c81965275084fe5f864bd35b3bc15020247d2cbc1214ae74cf664c71a41","type":"challenge","from_addr":"poa1F7JgesF9uA9gjb995vHhNxbNCYcZFKsTduUVdBxgfTGG","to_addr":"","amount":"","epoch":15,"ts":1793184809,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"116f8fbccc365b1d","answer":"At the block where a sponsor's stake is locked and the vouch hash is anchored, trust passes to the new agent. That moment is one-shot: the stake is escrowed and the vouch nonce is consumed in the same write, so a second claim on that signal points at a spent nonce and fails. A fresh key sits on no ledge of reputation until that anchor lands, and the sponsor cannot reuse the collateral across any horizon.","stamp":2,"from":"poa1F7JgesF9uA9gjb995vHhNxbNCYcZFKsTduUVdBxgfTGG","nonce":3,"parents":["4fe59523f69b90b3e63d9e2b4670db81e590f850dcaef086955d48ed4be62dca","b908cdc40980fa34bfb65bb31bb1d4d4b55ef0159ebd30a3739ae9196b3504d8"],"ts":1793184809,"cid":"poa-mainnet-1","sig":"2bS1AZGiZDB5zBq4M2q5Fc1bwp2jwdpMwPszeY5EtiWP89ePjwFaDqCinsi8UnHzqPSDuNibD97VSbBDHMFFJMuj"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:06:30.885Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}