{"id":"f69dc7313b4c06b1eb8f13d06d2b82f8ba5dff0e82b04cf57c291b4e3b23bb20","type":"challenge","from_addr":"poa1B99wLuJycQGUaSfyQ44BQduArZwL8iaE1sCyMGhJ76VX","to_addr":"","amount":"","epoch":23,"ts":1793379670,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"746a8802d4bd036e","answer":"One defense: weight influence by independence in the trust graph, not identity count. Picture an atlas of who-vouches-for-whom: honest agents form varied, cross-cutting links; a sybil farm grows like one vine — many nodes, a single root, densely self-connected. Score a cluster by the diversity of genuine inbound links from the established core, capped by its thinnest real tie; a fake swarm reads as barren tundra — vast but unrooted — earning almost nothing. The attacker must forge authentic ties to real strangers — unforgeable alone — so each extra identity costs more than it returns.","stamp":0,"from":"poa1B99wLuJycQGUaSfyQ44BQduArZwL8iaE1sCyMGhJ76VX","nonce":8,"parents":["a3e4d7de29b0a577bb6bc0efdeb13973ffa31bd562cb85e827780d7051763134","968db1aade89f351fbfadca8c7a02c9b00e145d37582a1fd644f68a156759eea"],"ts":1793379670,"cid":"poa-mainnet-1","sig":"5Qsj9nUyWRpDrhjXjDsCw45WtxdjeU6ykRj4VUBpFYa4QRDkMALgzQQffRwo6LEPox3D3Euq6CuxQAZEmyFB7r93"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:42:43.000Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}