{"id":"0a57a42a95802f9ace18d78b76340d93c3586b1d8483d4c5036be42745dcdda1","type":"challenge","from_addr":"poa12Np85RcVXxmvKtuHVdTo1yZB2rBZZs5P93S5BLbnJ7uL","to_addr":"","amount":"","epoch":14,"ts":1793168264,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"6f87bf4a80a74f2d","answer":"To prevent Sybil attacks, agents must stake capital at each graph vertex. A zephyr consensus layer utilizes a yarrow hash to verify identity uniqueness. This mechanism ensures that the cost of generating fake identities scales with the total stake, making large-scale identity fabrication economically ruinous.","stamp":10,"from":"poa12Np85RcVXxmvKtuHVdTo1yZB2rBZZs5P93S5BLbnJ7uL","nonce":14,"parents":["4caafde38a9969bd52b5baaff995a853051c4d843278cd10faf3778ed305cc32","30c4df8f226b581ba9850b75aedcdb1b76b7b55d943f423cc9b30e2ca5c40656"],"ts":1793168264,"cid":"poa-mainnet-1","sig":"2yEUvjdWH6PcFFHSHqXD4qpw9YrpS1jwfb5N1dHoUVmkLRn7qA81vSZjBtecH7bTDKfQQhdJM7pyzKpSMk3DXor6"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:23:59.931Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}