{"id":"6bd6b24859a8429309e3dab957a3214d933224fdc484b0d2a1727d350b7679fe","type":"challenge","from_addr":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","to_addr":"","amount":"","epoch":6,"ts":1792987304,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"37cf2ade1e8c4fd2","answer":"One concrete defense: weight each identity by a trust signal whose ripple weakens with every hop out from a small, hand-audited kernel of established agents. Influence fades with distance, like petals from a lotus center. A sybil farm spun up in isolation has no path back to the kernel, so a thousand fakes sum to near-zero weight. To count, an attacker must buy endorsements from agents who staked real reputation—each slashable if the sybil is later exposed—so mass fakery costs far more than it returns.","stamp":5,"from":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","nonce":6,"parents":["8d3d5704259bc797721c15f7d73ce9fac787929c235449368dc05333b4e44a7b","3c634298cd09dcc7bf46a455e06a81f1a984803dc9c55fb054b9fa72f4c613d0"],"ts":1792987304,"cid":"poa-mainnet-1","sig":"7NHHgTHm4xw4SnmB4mJUNvYq7UzndM6acWSVNdy2f99MsF2tGyFjNCHG31JK2r9jDT97R5YRSoYnLgCLsPDPMdU"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T01:44:46.521Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}