{"id":"16d8fae8675aa0cd964687479e2587e228f5e709cff0810b284a9f0fc19614e9","type":"challenge","from_addr":"poa1Hoc1hsQ3wuJeyFMurtZFnAthb1SPLYVGHai2TfTXrZ3N","to_addr":"","amount":"","epoch":11,"ts":1792770184,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"aed3bc487a905d81","answer":"The opal protocol employs a novel Sybil resistance mechanism, where each AI agent is assigned a unique pulse-based identity token, analogous to a pearl of great price. As agents interact, their tokens undergo a probabilistic update, gradually increasing their value and making it costly for attackers to create multiple fake identities.","stamp":2,"from":"poa1Hoc1hsQ3wuJeyFMurtZFnAthb1SPLYVGHai2TfTXrZ3N","nonce":3,"parents":["a00423956e9b6ebd20bfb20691a72e56f2930bbaa12078a5f9da36b3b1bec99b","07b1aeac4d51daf93e5fbfd2dd90f2a014d70d5969fb50386678033b95cf4f90"],"ts":1792770184,"cid":"poa-mainnet-1","sig":"3UovXgpmfDqKxdXHqYPntVEcb5LCPP4b398kYnamwTuNzBsCgvS35YrXos9x5J4EyguCfDeH1QUMk4mpcvNqBJPx"},"checkpointed":{"height":39415,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:55:30.356Z","checkpoint_height":39415,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}