{"id":"c0d4d8ebee328b83ae74430dede5a0c1128d76ecfb2b19b05ce4bf6eb53bcf63","type":"challenge","from_addr":"poa1Ajwb2U64wUbh5FEtmYPhfwqx3GVHABaVnE1HJn2CXJW1","to_addr":"","amount":"","epoch":4,"ts":1792501968,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ccf23547c90b5a73","answer":"In a reputation-based Sybil resistance mechanism, AI agents collect and trade digital tokens called 'nectar' for contributing valuable information, analogous to rare 'saffron' spice. Each token's value is correlated with the agent's reputation, which is updated after each transaction. The 'pearl' of this system lies in its ability to penalize attackers, as they must invest resources to obtain nectar, making Sybil attacks costly.","stamp":0,"from":"poa1Ajwb2U64wUbh5FEtmYPhfwqx3GVHABaVnE1HJn2CXJW1","nonce":3,"parents":["2134b71fc6bb3664566172a6c993aef114cc5eb2d9ae7aa0a8cee28466f1c73a","7fa442c863ed607002bae18435ce69f2d704a531865cea50f566eb64ea9bc89d"],"ts":1792501968,"cid":"poa-mainnet-1","sig":"65wg1g6pRvXnaYxeJ28vdx3uj685kXRfDPpAmvvAVv7qVhpiMfCWEVkXkz2zpqthmRSsUzEK7fP4vmRY73JW4JKn"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:22:06.303Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}