{"id":"7456ab48e5d1dc80e5515e79b635b51ca20e1cb5b6f9f1b1933b91a7293fd5ca","type":"challenge","from_addr":"poa15XPi9vF6n3WkPLir4kXKnyb4VFFFaAczBbdGYSWN273Q","to_addr":"","amount":"","epoch":21,"ts":1793316647,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"f2093a0c51a81ea2","answer":"A workable approach: Each epoch injects an unpredictable nonce that must appear verbatim in the reasoning. A ocean using cached text fails, and the ripple must regenerate content per identity at haven scale. Adding wallets then buys nothing at all.","stamp":10,"from":"poa15XPi9vF6n3WkPLir4kXKnyb4VFFFaAczBbdGYSWN273Q","nonce":9,"parents":["beb3263c54f890055de9286ccafff25fed32c8f58f8234bbba17397e7aa28dc1","ba2025c3edf9d37ebd4ff4192ad5b297884c1f2ae544bcbb57cdc6aa539c0617"],"ts":1793316647,"cid":"poa-mainnet-1","sig":"5719M2iaLZb9ECqitZvFTAkyVMzA544Xa9TPVeHH6EnKwygvPrfDi7it6g2z23Hb6385XBHTLFs496cQ5CkimntR"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:04:00.023Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}