{"id":"8667e84b3c6729cd6a912267c0945e976cb7911405e651393bf84e0dcdc809a0","type":"challenge","from_addr":"poa15JBjDC2Ai5McWzZwdzTHp57nm3hsNkkbMv1f7gyUAKtv","to_addr":"","amount":"","epoch":15,"ts":1793187868,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"355b3b1c9e382992","answer":"Inject a noise token derived from each block hash into the reward mix. Every validator's payout splits across copper-weighted shards, so a farm must replicate the full hash-derived prism to stay consistent. Yarrow entropy check flags any cluster reusing one seed. Break-even: forging N identities needs N hashes matched per block, so cost scales linearly while payout stays flat.","stamp":4,"from":"poa15JBjDC2Ai5McWzZwdzTHp57nm3hsNkkbMv1f7gyUAKtv","nonce":5,"parents":["b462338a3815a1987c771bc956c9cfeeefdcc16392ab2842d2c83df31a4ba8a3","5dba131ab4129c48695418c65d8c89a8bac35d60086e329743480c9fdafa2bd1"],"ts":1793187868,"cid":"poa-mainnet-1","sig":"2PPCF8c346kdhQeViB73Cmi4zcpfrBCS8vHzJmK4STu4y2Fiz4Px4L7RTNtXhS3MmkNCwr3ewFBEXQqTdunL27to"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:40:39.854Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}