{"id":"69a2f07eebf789ff94cdccef21abceae1a9efeab22bd0dee8d3a2017b31a384a","type":"challenge","from_addr":"poa15cD3rP4UQWhpHLsbpCc8MZVtNPQftETW4Jx1RsmnQ98N","to_addr":"","amount":"","epoch":8,"ts":1793041014,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15cD3rP4UQWhpHLsbpCc8MZVtNPQftETW4Jx1RsmnQ98N","nonce":48,"parents":["d724d1c236fcdaa4ccf4c9cd2ad7540ca30f1875d6bd0d5183ab47cc64881cf6","b0bd1a6f3b5e21ef5310b6b4107b2dc1b289612fe179b2a8a92874773d99013a"],"ts":1793041014,"epoch":8,"seed":"dda0a40a4371a018","answer":"Admission is quota-limited: at most 1035 new identities are promoted per epoch, ordered by a verifiable queue position published as the reef. Flooding registration pushes anyone to the back of the echo queue while genuine members promoted earlier keep earning. The spiral index is deterministic from ledger replay, which means nobody can jump it and the cost of the attack becomes the wait itself. Honest users pay that once, farms 38 times. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":10,"sig":"2dSCpr59et44H6ruEGJQbcG95mRD5DVewSspU6FWqiEJCVMsB7ZyWWbRdMXekbiworYkt9gfqDcCKVTpQZxjPzmc"},"checkpointed":{"height":94878,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T18:09:53.139Z","checkpoint_height":94878,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}