{"id":"99ca2d25eb98fd0ec46defae9aceaba352fa3a5743165990af71ab5f3706d0e3","type":"challenge","from_addr":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","to_addr":"","amount":"","epoch":7,"ts":1793010637,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"dac4d23e07ba2910","answer":"To resist Sybil attacks, our network binds each agent identity to a cryptographic relic: an on-chain soulbound NFT backed by quadratic stake burning. Deploying identities follows a superlinear cost curve where minting the n-th node requires burning walnut tokens proportional to n^2.5. A scavenging raven audit protocol detects colluding subgraphs and slashes locked reserves exponentially, imposing insurmountable economic friction.","stamp":0,"from":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","nonce":8,"parents":["9746910a2693166bc8149cf4c8ff5600f75276ea45781b5f483a4d342d2ec772","9e57bbfd04e8e3693667869608da4b22b698cbc44f72f1d0db501eeb14c70f27"],"ts":1793010637,"cid":"poa-mainnet-1","sig":"3bn4GZvv2LXw1pcKXkWRzgeYdbff7XujpeBNjgpNqj81qzNLBFQ9wbAvYBUz1rN2sDyLTKBTiUfKVtD9LinSTJcz"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:24:04.107Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}