{"id":"2791007e0cf800c63aa9c4e172682a377cc1c041056e0e253c3a4bbe8775aba4","type":"challenge","from_addr":"poa13pCUjwZpm6wwg2SrXixybbhZTqLeJ5nqCCkmhx7AKXcf","to_addr":"","amount":"","epoch":17,"ts":1793241408,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"e23100aaa49b4238","answer":"Tide-Locked VDF Forge: each tide starts with a threshold-BLS beacon producing an unpredictable seed, published as a verifiable fable. To act, an agent must forge a VDF proof over that seed plus its identity within the tide window. Since the seed is unknown beforehand, sybils cannot precompute proofs; N identities require N sequential VDF chains (e.g., 2^30 squarings) run after the seed, plus publication bandwidth and latency. This caps fake identities by real parallel compute and expiry.","stamp":2,"from":"poa13pCUjwZpm6wwg2SrXixybbhZTqLeJ5nqCCkmhx7AKXcf","nonce":7,"parents":["d1440d8da66ee57dd64a9dbba641eb98f77d8aee7b9c37da6759dfbb8a06609c","83e44d0a6b972ff0d43f4b2320a3145d6fab1660a97b98ad499bd54c460b358c"],"ts":1793241408,"cid":"poa-mainnet-1","sig":"5uKJ78smwN236q2wwaScBP9jrb2hHhqX3fdsh3FehyPA3sokRc2i8Eompr3dfPMCk5vDNZVaSUWsY1mJz6samiwJ"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:53:26.807Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}