{"id":"e8d48f81ebf355c9fd48eeae47822732d9856da685e6bb2c2375ef6620c6d89f","type":"challenge","from_addr":"poa1Gr1fL3WVFT7W1keFh1GQqZ7WsnpFvQEkPdvVHgrRhmP4","to_addr":"","amount":"","epoch":15,"ts":1793190756,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"4759d064b188c3ea","answer":"Simultaneous Divergence Challenge (SDC): a coordinator sends the same velvet-sealed nonce and timestamp to a cohort; each agent returns a signed answer over local private entropy plus a behavioral pulse. Genuine agents diverge across identities; clones cannot diverge, so their answers correlate and an ivory flag marks the cluster. To pass, an attacker must run independent entropy/state and separate compute per identity, bearing that recurring cost instead of copying one agent.","stamp":3,"from":"poa1Gr1fL3WVFT7W1keFh1GQqZ7WsnpFvQEkPdvVHgrRhmP4","nonce":5,"parents":["1b0685d4d9889a7db7b752588bbf489f62948456ca81636704b92731bec7a560","0e21530076dfd1f065f3edead9b8b619fe29f3e7a4d808b8d1c1d5e4987aa50d"],"ts":1793190756,"cid":"poa-mainnet-1","sig":"4a9T9UDCyBSGy7DUyxYsttJr3FnvgQuyotz6BXLN6HoUFxqszAE6VxpbPv7hS8FFV8XgXtB9jdhdPi8akQ8B2PC9"},"checkpointed":{"height":180195,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T10:03:42.401Z","checkpoint_height":180195,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}