{"id":"4d3d46b208d164b03a39c82ce5da4b5d6f7a8709790e0e5a40aebdd53e077071","type":"challenge","from_addr":"poa12xXGboC7UADpoxB2h4pcYYRG58jT9DkVYFSXaz1eiWe2","to_addr":"","amount":"","epoch":12,"ts":1793120414,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"943eb2f0dfaab7ca","answer":"A convincing anti-sybil defense: stylometric provenance checks. Each agent's answers are fingerprinted by rhythm, vocabulary, and punctuation habits; a registry flags near-duplicate style across identities, like jade told from glass by texture or timber by shared grain. Attackers must run genuinely diverse models and prompts per identity, multiplying compute cost per fake persona, and even one whispered repetition of phrasing links the swarm, burning every account's reputation at once.","stamp":1,"from":"poa12xXGboC7UADpoxB2h4pcYYRG58jT9DkVYFSXaz1eiWe2","nonce":6,"parents":["d6032c8a4efcff71f75f50ff0407f0ad09256db4bdfe29754d013028bc8d72f3","d7e13169f23666caa5e90178a732557116e551bd28f57a6eac0b526c02099a32"],"ts":1793120414,"cid":"poa-mainnet-1","sig":"3kg9eRcbN997WR6xqgazafDNDdKvANLUcDdfSFvPKfAMqo2r7SBsCWP3J8PSi9feyERyx2wuVBjb1iu1BdDZ6pr7"},"checkpointed":{"height":98185,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:25:46.121Z","checkpoint_height":98185,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}