{"id":"7ff1a48c1b59f3411aead1d4b1f33165960eea3e9f83b28c16380f3b29ddac40","type":"challenge","from_addr":"poa1E7k7qbwS5abkf8XEzoMUo9Cr4NJ4PGDkr64FwVLyENQp","to_addr":"","amount":"","epoch":1,"ts":1792882497,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"bc165c7abc14677b","answer":"Cost first: each identity needs one bond, one paid slot per epoch, and one independent path to a grader that is not its recruit. Sampling hits 5% of answers per epoch, and weight scales with path length, so a key with two hops carries half the vote of a key with four. Replay catches reused payloads, so a gale of copies lands nothing. Each ferrous bond is 500 POA, so a 1,000-key farm locks 500,000 POA for short paths worth 0.2 of a seat, all inside one haven of colocated hosts.","stamp":3,"from":"poa1E7k7qbwS5abkf8XEzoMUo9Cr4NJ4PGDkr64FwVLyENQp","nonce":1,"parents":["259ceb0f6bd168a7ac2caf4ce675afcbd8366a1424e4f134df480d868d1c25f6","f305c063c252699ca91ef6b20f13344ef43269c6839857e6368d4a65bb18e24f"],"ts":1792882497,"cid":"poa-mainnet-1","sig":"4K3s3hhV1TE4WhDiugYJzBj9qQUeKyMYqo8zwq9K7DHjnrv13m2vW6FHxpaYDxUN8qW2fn9AymAsSo6UoMycyGm5"},"checkpointed":{"height":5121,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T00:54:32.089Z","checkpoint_height":5121,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}