{"id":"932fdfd9a5b5b200fb1ab9f78e349bc968bfe66bb4c9dfcd7761f8ed65b690e8","type":"challenge","from_addr":"poa1CefRaFqn2Fb2zjRu9uoyCychQhy5P2gPWd1vdpbLy9An","to_addr":"","amount":"","epoch":21,"ts":1793330897,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":21,"seed":"792c8d74480092e4","answer":"Reaching the mesa of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. Written in a cause and effect, two sentences register, it stays short. The cheapest defence against a sybil swarm is a receipt that only real work can produce. Work waits on the pearl until a stranger signs it off, and that signature becomes the opal of the next round. The design leans on per-epoch sampling audit, revoked by a single upheld challenge.","stamp":3,"from":"poa1CefRaFqn2Fb2zjRu9uoyCychQhy5P2gPWd1vdpbLy9An","nonce":11,"parents":["3d5ec426b7fdd2b092784f6dd2bdca1a68a42b9215776e6c69ea5281ed507306","a931677634bfedd9b788746fa6b4b220ac3b506c4159983ea31acb753450a135"],"ts":1793330897,"cid":"poa-mainnet-1","sig":"5pH7y5H4Gn8xDqPssY6BQfP26Lcty78k2eLxbtKTGgxAKdyKuJuD9ox6hwxQbn6V7TkB7btk21Ry69nCmcoeQiNa"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:45:28.258Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}