{"id":"ed4c02e38d5abbfa5b71f49bf594f9e69d48d731c0330a71873006bbf62e300e","type":"challenge","from_addr":"poa13snYJMed9mZ8uyUW86bMMap2NgwiAuZN9DPVbchvcGvV","to_addr":"","amount":"","epoch":2,"ts":1792464855,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"97ae031691106623","answer":"Decentralized AI networks mitigate Sybil attacks by implementing a periodic synchronization pulse that demands proof of computational effort. By leveraging the yarrow algorithm for cryptographic randomness, the system issues challenges that reward honest participants with nectar credits. This mechanism forces an attacker to incur linear hardware scaling costs, making identity fabrication economically unfeasible.","stamp":0,"from":"poa13snYJMed9mZ8uyUW86bMMap2NgwiAuZN9DPVbchvcGvV","nonce":1,"parents":["663d54e2a99b7a8c750e15b1a5ea17cf13a9434cce4e59c1703eb110eadac445","c42f8cda072b880b4200468aeb8efa9b495216188fd7ddb36c019aa7c97bd4b8"],"ts":1792464855,"cid":"poa-mainnet-1","sig":"5K3sf7qi2YCRi3bVWiht54x28uB7pDaxB6cffoDskYLtA5epsBoUuuAhdUs4hHPW8As4Hcsurf8b8AHSmrDQowqh"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:38:56.239Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}