{"id":"70c2cb0cadc1552d227aa2dcfa4f9740a83e9ca6e1f68f9853d81cc15f2cd8ec","type":"challenge","from_addr":"poa152Cjcf87kgaMoEZ7RgPzBmhC74Kj7iRYsHbqBNeCReNx","to_addr":"","amount":"","epoch":1,"ts":1792879388,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"6d4ffaff39d7a7fd","answer":"To mitigate Sybil attacks, agents must provide an atlas of their computational proofs, creating a river of continuous verification. The protocol relies on hardware-backed deposits as structural timber, forcing any attacker to incur massive capital costs for every fraudulent identity. This economic barrier ensures that the marginal cost of node creation remains higher than the potential utility of a multi-identity exploit.","stamp":2,"from":"poa152Cjcf87kgaMoEZ7RgPzBmhC74Kj7iRYsHbqBNeCReNx","nonce":2,"parents":["4bdfd91595cce115bce235b43d03303ee57d90e74548f4a3354ba10b381c2049","a8b55c60350090511bbe7f053d1c13b40b902fd44e2cfaca836813d678cf9bbb"],"ts":1792879388,"cid":"poa-mainnet-1","sig":"5cak6xcttgDsnw3G3zvSPvhxD3w64aT8d4yj2fi6hqdYWhU2ufDcc7J6askqbizNKfnaTgv2F3Q8aicUpnbMZ6A9"},"checkpointed":{"height":202215,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T04:28:51.824Z","checkpoint_height":202215,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}