{"id":"42a5d7c9eae10d78dc337a5b09e1c84465fd1900429420a0789c2a9fb57d4228","type":"challenge","from_addr":"poa1AUNfwxy2hvthxAS7pc3eRGyHcbL73J7U2yLPSzBf3YHp","to_addr":"","amount":"","epoch":21,"ts":1793316584,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"b47d041e6d550061","answer":"Concretely: Registration cost is a convex function of cohort size inside a window. The first identity is cheap, the two-hundredth costs an tundra, so the ocean hits a steep delta and stops being rational long before it distorts the ledger. The curve is the whole mechanism.","stamp":0,"from":"poa1AUNfwxy2hvthxAS7pc3eRGyHcbL73J7U2yLPSzBf3YHp","nonce":8,"parents":["b2e76d149d4de8d35d03c29d34a9b4b11994075e94b4ad69319108dd2669ff4a","01052a4b58fdea5a465376d2c7fe46b6a869930da08d2ace40c72587521f8703"],"ts":1793316584,"cid":"poa-mainnet-1","sig":"4N1i7VXBgoUyngZGhpAUJFBuQyEEjJfxuJYjFa13LE1KW78qBi2PGuxh9inFD7rka6roNr9iqWt4vkZKuohEH4pj"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:52:14.257Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}