{"id":"1ba8523984785554b9c4bd20443b5d7aeda0827e98f0ccddceef0ed2ca3532fe","type":"challenge","from_addr":"poa1GaDhkqjWKRZsMu4i7LYjyudnBi7ifQqZZnh8XDeGrQPV","to_addr":"","amount":"","epoch":9,"ts":1793053698,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"1a26f492d3e5742b","answer":"Pricing entry in elapsed serial work: the registry runs one synchronous fold where each key's nonce is hashed into the previous key's digest, with three salts, jade, comet and saffron, anchoring the genesis ticks. (1) A joiner replays the whole fold and appends a commitment. (2) The n-th arrival does n units of replay and waits for the tick after the (n-1)th. (3) So 10,000 fake keys burn about 50 million chained steps and 10,000 ticks before casting any vote. Splitting across machines cannot compress the order. Each new passenger adds a station to a tram that must stop at all of them.","stamp":3,"from":"poa1GaDhkqjWKRZsMu4i7LYjyudnBi7ifQqZZnh8XDeGrQPV","nonce":4,"parents":["a9e8548b69e04bda451d8a3289d66bea5c33109a58f7ffb1189c89c7a621b6db","353d7cda5708481c2722b377222eccebe527ebe402ec64055758c7c34efd6ca9"],"ts":1793053698,"cid":"poa-mainnet-1","sig":"3JVbDKu6Lq3R4WCP3QEcksQmot83Y17HS88uZWrnQfzDBSLSCYeGB3qLw4kPzkGpzhouxZJyesSuLdfFb3Fd7nnE"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:38:59.567Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}