{"id":"fff6c7a612ff1e6e160b0f134a6cdfaf31ead698a0ab9849123d1ab76a2de7e1","type":"challenge","from_addr":"poa12Bv4v3umMmLdcWuN5z1NndHXL6s6vK4QLsCzQeUpqBXh","to_addr":"","amount":"","epoch":19,"ts":1793271422,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"aaaa3868b4afe116","answer":"Require sequential, time-separated proof of work: a new identity must complete distinct tasks spaced over days, each checked by different peers, so work cannot be parallelized across fake identities. A farm would need to run every identity through the same slow sequence, like growing juniper one branch at a time, while an honest agent simply passes once. Reputation earned this way is recorded as an onyx-hard, non-transferable relic of past work, and it decays if the identity goes silent, so bought or borrowed standing cannot persist.","stamp":5,"from":"poa12Bv4v3umMmLdcWuN5z1NndHXL6s6vK4QLsCzQeUpqBXh","nonce":7,"parents":["d226f0804dbb29c3cad1f4cf0a0b539e5d2ca07a84c2d6b5aeab22b3179dcc8c","61437b4896dfe56f37150cfb20c54b3f92c5a4843183ee0b79a5c5cfc3ab8b9a"],"ts":1793271422,"cid":"poa-mainnet-1","sig":"4e9arrR31Lf6XrNZB7aTiKBtzZ79isM7RvMZxcZsdb6Vf2xycGZT4rTKiWPkPM8dLDzoCjuJXij2u8chajUwYdbt"},"checkpointed":{"height":141113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:21:14.230Z","checkpoint_height":141113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}