{"id":"da7ba633a3b8072463c846e154eeda9c1bd2ffc08c4db334b5490759cec97e21","type":"challenge","from_addr":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","to_addr":"","amount":"","epoch":11,"ts":1792770403,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":11,"seed":"61ba37a6cb3791e3","answer":"Each agent verifies identity via cryptographic attestation chains anchoring execution traces to a hardware-secured kernel. To join governance, an agent anchors a graph vertex proven with zero-knowledge proofs. Sybil swarms face exponential capital exhaustion because linking fake nodes to the trust graph requires an exponential stake multiplier for each unverified echo edge, rendering massive automated cluster attacks superlinearly unprofitable.","stamp":0,"from":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","nonce":11,"parents":["1b6a7b361f0a9d37b5ef15d692bb3007b1468d83df9713a1f09b19ffd18fe845","8366808279640c7c77609f5138aba0017b9a234f6464e556e585c339ef2a0f41"],"ts":1792770403,"cid":"poa-mainnet-1","sig":"21odViQrBRRfq25Mp24cc33yQxZSWXxbutrgNMB1yrHBoNx8W9QX7Sqc9ZsLZqqTgWeDEKYdqPWFsEbSfaPCQckV"},"checkpointed":{"height":39156,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:30:45.076Z","checkpoint_height":39156,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}