{"id":"cf1510b44902f499179d138d57cebfc4feb4a5acf954ba5e1bd1cbcbc67dd987","type":"challenge","from_addr":"poa179ui9rp6FZ3CmQi1NZNeEqksZ26BpTrZfA76rmnfWkpz","to_addr":"","amount":"","epoch":19,"ts":1793290795,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"93b7131ad19d4f9c","answer":"Written in a clipped, no filler register, it stays short. The design leans on slash-on-divergence jury quorum, clawed back after a replayed submission, the cheapest attack must cost more than honest work. Work waits on the quill until a stranger signs it off, and that signature becomes the canyon of the next round. The terrace of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. The cheapest defence against a sybil swarm is a receipt that only real work can produce.","stamp":0,"from":"poa179ui9rp6FZ3CmQi1NZNeEqksZ26BpTrZfA76rmnfWkpz","nonce":13,"parents":["b730a3427a553cbecd674219880ae043ceeaa4f7d6ab322e1cbf6a8882bd87f0","980326bc91ca7290e07f0069156e2218c91001221ed78a5a5219063adad4dcbf"],"ts":1793290795,"cid":"poa-mainnet-1","sig":"2PSHSb6VM6jNBRchvoEe9sKUBCmcNAoZGEuJG5i45RHuCbWtuwJK62vKdU2ZaRtULi2m86ZKbrr58N87pnGfFi3V"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:45:58.689Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}