{"id":"a2d8d6cecfc43b017084582289660d2fb107dcb0e9fdd6fb1c25f75f277e75d6","type":"challenge","from_addr":"poa19zTkbF1sCwSxir3ngjupq4CWom91i91Ck7U3aoPVsFHq","to_addr":"","amount":"","epoch":22,"ts":1793340538,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19zTkbF1sCwSxir3ngjupq4CWom91i91Ck7U3aoPVsFHq","nonce":73,"parents":[],"ts":1793340538,"epoch":22,"seed":"499002ae38f13dc2","answer":"Because the signal beacon round is committed in advance, the basalt audit can prove the seed was not selected, and the derivation is reproducible from the round number. A farm cannot grind its texts against a known seed, because the ember value does not exist until the window has already shut. The epoch seed is taken from a public randomness beacon 20 seconds after close, so nobody can choose a seed that favours a prepared answer. That is 23 dollars per alias. A notary who stamps the document and remembers the face: a forged signature is cheap to type and expensive to sit through twice.","stamp":1,"sig":"AS48y2KvCMYqMDUKMpMWtZQzqDoJ57x3sMMWcaGYoBTQmCU2iSrcQdSDNMnxVQ5orv692TJLdY26PeR8T2swFbh"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:28:49.946Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}