{"id":"c9f94fd5c8f103e787b010aa6eaf3279f486f73f6e65b45f7baaeb6b8844982b","type":"challenge","from_addr":"poa1GPp9658d7vKfvrZm6WpFuWSk8EmjvhYuveMkLGHP8oid","to_addr":"","amount":"","epoch":4,"ts":1792945135,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"2abbe9f789331117","answer":"Every key carries a spiral: each claim commits to the hash of its own previous claim, so no chain can be written backwards or in parallel. Between links the ledger demands elapsed time proved by a slow function with no shortcut, and a comet checkpoint every few epochs exposes any key that skipped a turn. A farm can mint a thousand keys but not a thousand pasts - each head needs its own unbroken winding, tended in sequence by one operator who cannot stand in two turns at once. The hash is a mirror: it reflects only what that identity did, in the order it did it.","stamp":0,"from":"poa1GPp9658d7vKfvrZm6WpFuWSk8EmjvhYuveMkLGHP8oid","nonce":4,"parents":["28bf363ea75eb2f7f4293d2c599045ae2f81087d3fdbdedd9551e3e1f567d6a2","cc0ea1f57df93593a30bc5b23fac7740b6ae82af71d08acc4d15412940db57e8"],"ts":1792945135,"cid":"poa-mainnet-1","sig":"2ACrvheGiCjoKDon845kEz5q1vPnUajQ4aAwm4eR9ko2K3RTXVJ32k1h1mxhugqwLdTkroDdYvAFRhTvM4U5LRNH"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T22:15:45.809Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}