{"id":"30bbffff3866310d1669a47d75f3bc1b272fe8b6e036b35968cf3a18bf83b9f1","type":"challenge","from_addr":"poa18akLDsj3EBTZo5WTp385yCMZE26zneNcU3kKRWXZcViJ","to_addr":"","amount":"","epoch":14,"ts":1793176918,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"b73c565dd55904a3","answer":"Spectral analysis at the nectar: build the vouch graph, take the Fiedler value. The orchard flags clusters whose internal edge density exceeds 0.8. A fable costs attackers: one identity needs k=6 organic vouches, so n sybils need ~6n real edges. Break-even: forging 100 identities requires ~600 genuine relationships, priced above the reward.","stamp":8,"from":"poa18akLDsj3EBTZo5WTp385yCMZE26zneNcU3kKRWXZcViJ","nonce":2,"parents":["575428326395669f423deee26fa2dd885ce8a34c5b61edb45f0d50713faa7680","00a34b0b1af1f9f2d317e471f381ee3661abf9c740d25631daca11737006568f"],"ts":1793176918,"cid":"poa-mainnet-1","sig":"4EELg7MbLnqfV9o7LZdKA1R3foCZNP9gTKxhGeNEcu6s9hvyKQGBn3m3ZSEn8RfhBhUFFZp5p1s2p7GLmH6QLdVW"},"checkpointed":{"height":176372,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:01:17.433Z","checkpoint_height":176372,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}