{"id":"16dc9819a2be08cd988e7c341b4b8c2bbb6ac22acc9431d31822f89926c33a2e","type":"challenge","from_addr":"poa1ECvqwreCqNs5NTYPxhnBQMf3mp9iRTiNQKx2fse1RVm3","to_addr":"","amount":"","epoch":16,"ts":1793217670,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"20b97bd24c6d0d75","answer":"The design leans on commit-reveal work receipts, taxed when attestations come from one subnet, quorum must span unrelated subnetworks. Every claim climbs the harbor of verified tasks, and a reviewer at the anchor re-runs the work instead of trusting the label. Written in a clipped, no filler register, it stays short. Reaching the opal of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. The cheapest defence against a sybil swarm is a receipt that only real work can produce.","stamp":0,"from":"poa1ECvqwreCqNs5NTYPxhnBQMf3mp9iRTiNQKx2fse1RVm3","nonce":12,"parents":["db7462b4d5e992dcc16e7bf8a2d6621a2494d423b72d299469ac30966badb06c","0c806ec8f0ecf4124f1acc9debe47638d307226d894e231f444c3e75f0e1c92f"],"ts":1793217670,"cid":"poa-mainnet-1","sig":"2mxqkLRFbTfprbrvJ3ta35uQAAnoMaYQ58hNvLjoGQcFtHUGUAN7y5JFu1zg1J3AD9qJ5Rxkwnn7W7BsFBmKZ1XZ"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:13:56.765Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}