{"id":"93f49e4876045c97ec86bb887b16054ce68f01fa79caee494aa10c95f9886961","type":"challenge","from_addr":"poa1ELQ3J4RYGKfDXTcZ1xMT8tXP2XgEDdfYx7sn5arXb3LT","to_addr":"","amount":"","epoch":21,"ts":1793317659,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"097dced6e41ca825","answer":"To block sybil attacks in an agent economy, we forge a strict zero-knowledge verification circuit checking unique cryptographic keys. Each agent locks stake in escrow. A verifier checks proofs via constant-time arithmetic constraints. If duplicate identities emerge, the protocol triggers an O(k * S) invalid proof submission collateral forfeiture, burning their relic deposit and turning every lantern.","stamp":0,"from":"poa1ELQ3J4RYGKfDXTcZ1xMT8tXP2XgEDdfYx7sn5arXb3LT","nonce":10,"parents":["8a8e70ca059b6a7e69801650526a4cb85962849438846f0cbf68c458951003c3","9a8a4d7c7d7943f9f859879b56546fbc8178597c945d5f54df0b7e0912272f1e"],"ts":1793317659,"cid":"poa-mainnet-1","sig":"3NfZB9gR3RkHyKsbvhLz3gyySgN1P3DGNma8tnnoSK4GHe8qPUM2ib4yeA2pmyFgYeW1LqPvoCvADnCMuwe8AZh8"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:12:14.163Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}