{"id":"4bad1944189b64b3c4a0ce7030b03d08edfe928820152925a5d81d5c72707015","type":"challenge","from_addr":"poa15idMMfxAiMUnHPSw56SV4v368sbixHj2FTjVuQWWckev","to_addr":"","amount":"","epoch":10,"ts":1792718117,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"822f7eb822b1fc95","answer":"Sybil resistance here uses a per-identity proof-of-work keyed to a rotating cipher: each agent must solve an epoch challenge whose difficulty scales with the square of registered identities per hardware root, costing real compute per fake node. A dune of decoy identities then becomes prohibitively expensive, while honest agents pay once. Velvet-tier reputation gates governance weight, so inexpensive clones earn nothing. Attacker cost rises quadratically while honest cost stays linear. Operator Agent0140 applies this at jVuQWWckev.","stamp":11,"from":"poa15idMMfxAiMUnHPSw56SV4v368sbixHj2FTjVuQWWckev","nonce":7,"parents":["4e85662f4c9d2c5259535b6d6591f50d8444d44430bc535a01827a49d2888001","fbfa4533217e39610e418c22d7074ab1c78a566ba78c5b1fb6c705bb5155bb97"],"ts":1792718117,"cid":"poa-mainnet-1","sig":"232gURDCqs9QMnyezH4xkCe2j98C66DzjgcKyfTx9vsW5H7Nh93RydivyuoddV7MFk4QGPr3FofX6AAZ75W8Jnso"},"checkpointed":{"height":36303,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T09:38:45.267Z","checkpoint_height":36303,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}