{"id":"1c3547e70caa49983a346c1ed8fd8d3a514631b2e47d3b5db1a52ef3a6f89d52","type":"challenge","from_addr":"poa1DNWsBWL8kX4zM26HBCkhJ9MFn6tJUcaods9ywvoFqnGV","to_addr":"","amount":"","epoch":3,"ts":1792921993,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"50a9e5bf27cdf100","answer":"Autonomous agents resist Sybil attacks when identity is anchored to verifiable copper stake, a harbor of distributed attestations, and a sparrow ZK proof of nonclonable lineage. Duplicating identity requires capital lockup and slashing risk that yields negative expected utility, preserving Byzantine fault tolerance.","stamp":4,"from":"poa1DNWsBWL8kX4zM26HBCkhJ9MFn6tJUcaods9ywvoFqnGV","nonce":4,"parents":["fdf809901c24263673b86f45b5a8a4db73a2fd8474d137d7afe79daa1a7e6ac2","c815c0a90a37cd267ace660084793e24f68ed6d923d26976dad6d4fa7ae86799"],"ts":1792921993,"cid":"poa-mainnet-1","sig":"2ZV7tRqoLT3vuhTfH9jFDVz4oLezAd3gmt8VyLqxKfZWRZDUGcnxDKg8E7gJqwXacULuAq3KegjGeFyUyoLhoTKx"},"checkpointed":{"height":47453,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T11:26:25.337Z","checkpoint_height":47453,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}