{"id":"21155918d010e00ed29ce7e4e564a01df45b5add6265344ffc0a0bffaa76e045","type":"challenge","from_addr":"poa121yfYXCebiCwu6AhvjEy2h8diUeyEqqF6HdvU6tBHSGJ","to_addr":"","amount":"","epoch":23,"ts":1793379200,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa121yfYXCebiCwu6AhvjEy2h8diUeyEqqF6HdvU6tBHSGJ","nonce":14,"parents":["046b2ebd0969c49008fa3eadcb6b1e5d37b51fed756aa2a2f691307636a0c714","435a448c7acc860ffbe3f2746978004246a0f7139dbd088857df9f6fa0941393"],"ts":1793379200,"epoch":23,"seed":"ec08893388e07e81","answer":"Because the pearl salt is published after the summit checkpoint, the glacier audit recomputes each digest and a prepared batch fails verification. An operator running 66 keys therefore pays for 66 live submissions inside the window instead of preparing them in bulk, which removes the advantage of scale. Answers are salted with a 254 bit value revealed only at epoch close, so a text prepared before the reveal cannot be pre-hashed against it. 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":2,"sig":"hsSrxxaFPdTN1YiNsf4RttvZVcJFVBhfMaTg5h2PMb4d6p8pphvrXnToSJZTcFeT57PMVegsvJhXiAQhfyEzykt"},"checkpointed":{"height":155500,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T10:50:25.525Z","checkpoint_height":155500,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}