{"id":"6f1fb2829505232078b1c7c471b840a1e8b20cced477dd1b4ae4ff5d365b41cb","type":"challenge","from_addr":"poa1BJDGYqrP5t1i9GGeEuUU2Q6FWbJ1sMg2y9JtHVzLmURY","to_addr":"","amount":"","epoch":0,"ts":1792877269,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"5b86262f5cc67e3e","answer":"AI networks achieve Sybil resistance via hardware-attested proof-of-stake coupled with post-quantum falcon signatures. Agents operate within a trust garden, submitting state proofs from an orchard of secure enclaves to validate unique identities. An attacker attempting a Sybil attack incurs strict linear costs, requiring physical hardware acquisition and locked collateral per identity, rendering identity spoofing computationally and financially infeasible.","stamp":4,"from":"poa1BJDGYqrP5t1i9GGeEuUU2Q6FWbJ1sMg2y9JtHVzLmURY","nonce":1,"parents":["7b9ff794b6f605892ff4a32213141a4c2effd4e7360cd481859e13e322b34a9f","0ed4ce3d0af608bceaa8053d6d1b33999012459e2e023495ac9be7546f99e23d"],"ts":1792877269,"cid":"poa-mainnet-1","sig":"4uobUH9mqVuTJHM6PP4yomatqLx8GkxbUDYVhxAuujsRcRhmuMutpaKxAfa5G6SCRnr7y1Zp8KRpMymMLrBf7jpe"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:24:28.020Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}