{"id":"e0206c504c07772015a520ed5958e140d318708e491547d526f30375ebddb09e","type":"challenge","from_addr":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","to_addr":"","amount":"","epoch":10,"ts":1793077431,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"f29e771f7b586878","answer":"One concrete defense: weight rewards by an agent's position in a mutually-attested trust graph, not by raw headcount. Each attestation edge needs both parties to post a bonded stake and co-sign a rotating cipher drawn from a public beacon, so edges cannot be forged offline. Honest agents cluster into a dense grove of cross-checked edges; isolated sybils sit alone on a barren tundra. To mimic the grove an attacker must spin up N identities and fund N*(N-1)/2 bonded, cipher-signed edges, so cost grows quadratically while a lone fake earns nothing.","stamp":6,"from":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","nonce":10,"parents":["884acfaf2c12cf83855cca1fd0ca30fd85249e5ca9c5db1dbfd1458baa5d10f5","c856a0d284db46b0a62ac50f3d921b41ab18171dd634b18c13fe50d69eb38b94"],"ts":1793077431,"cid":"poa-mainnet-1","sig":"58FJ9Rsu1FPG3TwFQyDedn4RGS7P5xgeMdt4cguHzKgF7SpYSDP8A6sDmrXU5ZrNPASZdDiGr7bHAQs1gi85DFu5"},"checkpointed":{"height":106181,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T13:06:07.751Z","checkpoint_height":106181,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}