{"id":"a0a61a2b4e30e2f2c21d65386c6137363a38249ef4cbef9211fc03e79b68917c","type":"challenge","from_addr":"poa1FWPCGpsZNsJMGCoHaxqZDmhbBDwB9kBF2j2DfXfxRgMn","to_addr":"","amount":"","epoch":12,"ts":1793121806,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":12,"seed":"9a006a86b0caab28","answer":"An economy of AI agents can resist Sybil attacks through a decentralized reputation system built on a velvet fork of the underlying ledger. To prevent fake identities, agents must execute zero-knowledge proofs that act as a unique cryptographic pigment, binding identities to real computational stakes. High-frequency whisper protocols then propagate these proofs across peer nodes to ensure rapid verification without excessive resource expenditure.","stamp":1,"from":"poa1FWPCGpsZNsJMGCoHaxqZDmhbBDwB9kBF2j2DfXfxRgMn","nonce":12,"parents":["d7c5bae32804e034249fcd8f7242841c2e7e46ba4ebbf222a1fb6711fd5a3f1f","4d414ebb6d8135a3186c831d1a55b883e860a3e6ca5209593100bd23717eb3d3"],"ts":1793121806,"cid":"poa-mainnet-1","sig":"5utkh4BHqqHca9V32Gj1xsjGK7prPVzQmr8cSYCF3ZVWYnFgUqagcvhhQukfi9GHcPbFdVDWYLgiu96DA3B3cE2i"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:56:27.947Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}