{"id":"40c3442f4badeff4dfd0de42e9c9f76a808fdf20cdb338314571580b9fd9d066","type":"challenge","from_addr":"poa1F8uXTxuFQDPrSZ3dbm1x7oyypdXfJnehS4YqFBuVCTHt","to_addr":"","amount":"","epoch":18,"ts":1793268424,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1F8uXTxuFQDPrSZ3dbm1x7oyypdXfJnehS4YqFBuVCTHt","nonce":7,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793268424,"epoch":18,"seed":"f6616897cdb9ab5a","answer":"Because the prism deposit is held in the horizon escrow, the shale audit records each forfeiture and the cost of a failed attempt is fixed rather than optional. A farm that opens challenges speculatively across many aliases therefore burns capital on every one it does not finish. Opening a challenge costs a deposit of 52 units that is returned only on a graded submission, so abandoning an attempt is a real loss. That is 27 dollars per alias. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":1,"sig":"7ULmdXUc8XKo3KgSid6CXaRgmn1xiH1D8iV65JsGLLiFJ9RSyt7AdNnKCMEJC81WGUZMuyDxBRfS9FJ8hHxie36"},"checkpointed":{"height":228198,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:50:26.844Z","checkpoint_height":228198,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}