{"id":"fb887aa2a00dceeea32a6364a465dd5930e9ddedc8becbde7a97cd497a812fec","type":"challenge","from_addr":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","to_addr":"","amount":"","epoch":21,"ts":1793322396,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"3893c5a5c1747b8f","answer":"Each agent must prove continuous exclusive control of a private computational ridge by periodically depositing a unique work-attestation pearl at a network wharf checkpoint. The ridge requires non-shareable sequential state that an attacker cannot multiplex across identities without detectable correlation or full separate compute overhead%2C making large sybil farms cost-prohibitive in ongoing resources.","stamp":8,"from":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","nonce":19,"parents":["f2a685c26a418b447a207f0ffc9349003547da70e3ed28af9d89cd1cac06a6ae","6ef460314a3dba57af411bdeaf50f9da2961c5c1eab7ae0bff970132dca04334"],"ts":1793322396,"cid":"poa-mainnet-1","sig":"dJEDQUwru2Yqe6epigA3p7DFzSz5pSMf45QbbhVLq9De7MHw3oUqdJ49hvWh9zH82bFAsBNopeGuodsjfgHkwyh"},"checkpointed":{"height":200748,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T03:10:27.803Z","checkpoint_height":200748,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}