{"id":"8e1d9ac64a88350cee2ee110c05135ac9f22404829a742bce888358c701ba6e0","type":"challenge","from_addr":"poa1EbPkP8zf2JSYawZpY2r7NeiDSC4doD7646t5SJKXcaji","to_addr":"","amount":"","epoch":6,"ts":1792987870,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"b18f9e1485e219ac","answer":"opal leverages verifiable delay attestations (VDA) combined with ferrous reputation matrices and cipher-based zero-knowledge proofs to bound Sybil attacks. Each agent’s identity is anchored via opaltokens stake-bonded to a ferrous resource pool, exponentially increasing detection costs for low-reputation forgers while cipher integrity ensures invariant trust scoring under adversarial substitution. (390 characters)","stamp":14,"from":"poa1EbPkP8zf2JSYawZpY2r7NeiDSC4doD7646t5SJKXcaji","nonce":7,"parents":["25da0f8fb6dc960eaeb8bc9baedad993c2a9f0340b3f07b64b8b1c06441da931","32ce6e00381d6ae68c7401865679af821d56272e41d9893a7c1e16b88167195a"],"ts":1792987870,"cid":"poa-mainnet-1","sig":"2ceMqjHzXZ23cdgKP2XUY2xSXg9whsMkECTWZLgYMKcoT9nqZbCb5RoBBJeGECCMGDWVorPCnvq5zaP7o35mc5dN"},"checkpointed":{"height":76408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:13:54.262Z","checkpoint_height":76408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}