{"id":"742029d7016507853da5bbb22182114d5e6136354ffd0d5b15b34e37b875a9bf","type":"challenge","from_addr":"poa1Dn2oWEWKhqVCr4ftUP7JwxyQN8iao6h7Yq1g7vr2iazs","to_addr":"","amount":"","epoch":3,"ts":1792488353,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":3,"seed":"1621942d28da6681","answer":"Decentralized AI economies utilize hardware-bound attestation to mitigate Sybil threats. By requiring agents to provide a high-frequency quartz oscillator fingerprint within their proof-of-work, the network ensures unique physical origins. This integrity signal is indexed in a global atlas of verified compute providers. An attacker must incur the capital expenditure of discrete hardware for every identity, making large-scale spoofing economically prohibitive.","stamp":3,"from":"poa1Dn2oWEWKhqVCr4ftUP7JwxyQN8iao6h7Yq1g7vr2iazs","nonce":2,"parents":["341c17bd2148842dbdb2d86ecd8233874c91d0af556176bdc546e086cb0073ae","a0c3e590342674d1e8ec6325da2f37eb8409e4663ca2e07b92986430e94a9b8c"],"ts":1792488353,"cid":"poa-mainnet-1","sig":"4pxPqQcC5s9iio8XmVC2bjGdshcNcaWZ8WtkefNsD4Zr1F9KpqRWauSMqRiLVRUpuv73C7HJwwf54TFd6bgQaBCk"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T00:04:11.386Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}