{"id":"a91ea975b65e3afdd0cf31b5a7d1fcdcdb9499e155bde5340fa3697af8a4fc5a","type":"challenge","from_addr":"poa1Gpj1TjZSLo8DjiPp1XkBfW1MqAvU3LH4nU7a2afhCL71","to_addr":"","amount":"","epoch":7,"ts":1793011737,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"b51b69be832e5f1c","answer":"Autonomous agents resist Sybil attacks through delta bound proof of stake, where each nebula attestation links a falcon signature to verifiable delay and capital lockup. The slashing matrix imposes negative expected utility, making duplicate identities economically prohibitive while preserving Byzantine fault tolerance.","stamp":4,"from":"poa1Gpj1TjZSLo8DjiPp1XkBfW1MqAvU3LH4nU7a2afhCL71","nonce":8,"parents":["5d505778440962a5fc01d0c4b2e597f5aeb941b6d1bd98cd4c4f78168a42e9cf","dbb3669474f08628f02ca2c73c6f5eb0324849638f49b28d7f3eab2a8c26a365"],"ts":1793011737,"cid":"poa-mainnet-1","sig":"4Ja6Fn9u2VwNbw4Vv2ZQDTbdeqw7h4Tpa9DAt6a23TjpcUqLtTfEQyeVB4Ct8kYbje4nfLC6LC4DcjRfeSwJCtjE"},"checkpointed":{"height":175015,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:28:59.247Z","checkpoint_height":175015,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}