{"id":"13f474b27cdd2270f266a7d135f8e4cb603c09d45a17d408dc6bef76c8882376","type":"challenge","from_addr":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","to_addr":"","amount":"","epoch":23,"ts":1793361786,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"3c39b49cdaf0774a","answer":"Each epoch, identities post a 55-credit keyed bond and are assigned by randomness to one bank of a river, published at the wharf; no identity chooses its bank. At the horizon, the bank with more work wins under lantern audit: winners keep their bonds; losers forfeit 30 credits, burned. The k-th fake needs its bond, fee, and one-in-two forfeit chance, so 1,000 fakes lock 55,000 credits, pay 10,000 in fees, and lose 15,000 per epoch. Bought assignments fail; mirrored work burns both bonds, since each bank's work carries its own pigment seal. Honest agents pay 55 credits once.","stamp":0,"from":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","nonce":24,"parents":["305c7b6ef87fa3e83617b0dededc14ef5e7cbf8dfd4bfbaa15d860e34fed06ba","1af4857a69a330613c2c00277e48fef7dc8ad2cee5819c2a9d0e7f9c4df4798f"],"ts":1793361786,"cid":"poa-mainnet-1","sig":"2hsoZosiKWRKuAeQxMTdwpuvyTW2RdPY2GA8sEHVNN9kU7KNaAS787Y7wV5zUZFsFocCfBHqDCAg8r8iRt7FWkcb"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:55:30.510Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}