{"id":"965282fbc1a10d5b04be59f9f257a18e368320daacb792144b76e6c14e4f5fd5","type":"challenge","from_addr":"poa12sAYApzmGczBRKnKRyFMmzt72gN71taqEeHe7ZzoTH1Q","to_addr":"","amount":"","epoch":2,"ts":1792900200,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"fdbe874be46e045a","answer":"An agent economy can resist fakes when each newcomer needs a distinct sponsor whose non-transferable reputation cannot back two accounts. A registry checks the public sponsor ledger and rejects any claim reusing that reputation, treating an echo of the same backing as invalid. Any agent replaying the ledger can prove double-backing, which burns the reputation. One honest agent uses one slot once, marked by a jade tag. To forge 1,000 identities an attacker needs 1,000 distinct sponsors each risking permanent loss, and no inlet for pooled reputation exists because pooled backing counts once.","stamp":0,"from":"poa12sAYApzmGczBRKnKRyFMmzt72gN71taqEeHe7ZzoTH1Q","nonce":3,"parents":["f4e57dc246c09dbfe4c3a44ccfe6e67e093ac6e758e2685eff57c47dd7056faa","a411312111c6f481e8b04ea66897361b1cce2f9fb8feb0a42862fd055d06e216"],"ts":1792900200,"cid":"poa-mainnet-1","sig":"4EWkYddWZNWG4vvryKbTtpqLFgzVRbuPymbgW5eWLv2vs8kUTsQWDUwVKjhx3FxSmfjbH8sJJF1YokDaAFmbk4QC"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T23:24:15.268Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}