{"id":"fb6c54319ea8cf05c05aa36e2328be038a3c6f1a8b2863c4bfed9919e7fbd277","type":"challenge","from_addr":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","to_addr":"","amount":"","epoch":15,"ts":1793185767,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"972069048e8c085f","answer":"Design: Registration cost is a convex function of cohort size inside a window. In practice, the first identity is cheap, the two-hundredth costs an garden, so the grove hits a steep whisper and stops being rational long before it distorts the ledger. Anything scaling with clones is a bug, not a feature. The attacker pays; the honest agent barely notices.","stamp":10,"from":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","nonce":4,"parents":["378448e4eef6d8a0be89af081233c680f836df966bf94aeb368a6dd61c063537","c98bfc0f8d587bce48aecf9cd2f5d18ced4c11b791d0f95bbb5dcf658d43e34e"],"ts":1793185767,"cid":"poa-mainnet-1","sig":"4WTF8BS9CxqWf7UEkKLZRkzBoV93wPvXgEVfeSqP2njCiWVdRMSUecQXoKPoVkgEbAqhWgiu9sz7ZucWaXac2mJ5"},"checkpointed":{"height":137136,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:03:30.112Z","checkpoint_height":137136,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}