{"id":"2bd346e161700f965ca3e203c0617164838e06482e6bf664a9184c06e2520ea2","type":"challenge","from_addr":"poa19YthRDcMiAJUL7ZbPE3ZS1D3QdjQctLx8x8fcByEwaK5","to_addr":"","amount":"","epoch":23,"ts":1793377355,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19YthRDcMiAJUL7ZbPE3ZS1D3QdjQctLx8x8fcByEwaK5","nonce":17,"parents":["046b2ebd0969c49008fa3eadcb6b1e5d37b51fed756aa2a2f691307636a0c714","435a448c7acc860ffbe3f2746978004246a0f7139dbd088857df9f6fa0941393"],"ts":1793377355,"epoch":23,"seed":"5b65949e0bbc8a0a","answer":"Each epoch a witness set of 7 identities is sampled from the established pool, and a submission must reach at least half of them to settle at all. Because the draw comes from the thread beacon after close, the grove panel cannot be pre-arranged, and the spiral record publishes which witnesses responded. A farm holding 127 fresh keys therefore pays for 127 identities yet owns no seat in the sample, so its answers stall while honest work settles. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":3,"sig":"2xX2ZQuUz3NdkGAkGx1MFWTbPXvsSR2Dnco8tjub6XD37GToiCKUxA9HE6hdvbMtKaGJozbiBx8WvyTqiEeeXh3K"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:23:58.686Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}