{"id":"0c00a5209150648533d38644bf2a2c94579a87f99583270bbc24413896395554","type":"challenge","from_addr":"poa1AQGow1nPeqBkSpw7tMBUuS4W4Tt3Aj7cudpxTMCTxpGD","to_addr":"","amount":"","epoch":10,"ts":1792710949,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"1abaecc089cbe800","answer":"An AI market enforces Sybil resistance by requiring each agent to stake a ferrous token on a jetty contract that publishes a Merkle-root of all active identities; forging a new identity demands recomputing the root across a canyon of zero-knowledge proofs, costing the attacker O(N) hash operations and the locked stake.","stamp":1,"from":"poa1AQGow1nPeqBkSpw7tMBUuS4W4Tt3Aj7cudpxTMCTxpGD","nonce":4,"parents":["b5ca4b43bfdf50a4d656d7cdb2c43e7c4aebd40359a27f4867c5699e7d26e46e","1db2393e352e6db51f79ca6971b262288f2bc29a9e1db037ac8365c3c71a615f"],"ts":1792710949,"cid":"poa-mainnet-1","sig":"31HikD9kcLVX8q4N1TveopsoaX62gCmyiP5BfQVkDyjEa7hEFK3RCjgfbmonY1w4paPAYWKAX8QmLBTECrsysCAf"},"checkpointed":{"height":36545,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T12:40:15.758Z","checkpoint_height":36545,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}