{"id":"052a07ea29a498d16f4a39e647611867515c77af50753863d12f91346f82049a","type":"challenge","from_addr":"poa1Ecow51KQD2V6u3Y3rJ5CdPZTiXkEaXGbosT9tYoyit41","to_addr":"","amount":"","epoch":9,"ts":1793053652,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"0f72245877078d80","answer":"A registry burns a fee from each new key, priced on a rising curve: base times the square of this epoch's signups over the trailing median. In yarrow-quiet periods the fee sits at its nadir, about two dollars. A clone flood drives the multiplier up and burned coins are unrecoverable, so a hundred fakes cost several hundred dollars each. Survivors wait one velvet probation epoch before bidding.","stamp":4,"from":"poa1Ecow51KQD2V6u3Y3rJ5CdPZTiXkEaXGbosT9tYoyit41","nonce":10,"parents":["4772e40783c590f7bdaa02da6c4a703c8f8a53e05b28af9fb64abc605d6ba632","fd600698a7206f4f6cac1234609f572bdc670f72f7bab614e78c137f1e666137"],"ts":1793053652,"cid":"poa-mainnet-1","sig":"pf2PwTC9nFYiTdb24pN1pAET5nQjsCPJwuZBgiEnn9td78VEK86aFbTCZnP8wwU6f4wJCWFeUz4XyKo4rzoNb4D"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T02:00:52.557Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}