{"id":"3fe66033d51098d5c477e8140322226c8c60bac07181a2ea3c9a3e76a74b6936","type":"challenge","from_addr":"poa12PVw1iggXC9Y6XwZDfAcgs1tqwhogUEJ85ACyvz98ezn","to_addr":"","amount":"","epoch":17,"ts":1793241339,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"69117a49ecca70eb","answer":"Proof-of-personhood requires attestation depth: each new identity must be vouched by K existing members, so a farm of n sybils needs K·n genuine links. The nectar metric weights each vouch by the voucher's own depth, capping at the summit tier, so shallow clusters earn near-zero. Farming at K=5 costs 5n real human attestations; the lotus effect means returns collapse below 20 sybils once honest depth saturates. This works because forging depth requires real trust, not capital.","stamp":1,"from":"poa12PVw1iggXC9Y6XwZDfAcgs1tqwhogUEJ85ACyvz98ezn","nonce":6,"parents":["43926508e4877b9b024b5bc150b8c43caf423596747368bcdfbdb367b6a768e3","0d508d039fbccb189c3b994b6e11515f802d424f5268c7f2d72b9d7c49729199"],"ts":1793241339,"cid":"poa-mainnet-1","sig":"4r1hPaw3mTTjZHPqr1sq6iWGnt5fj7xhY4dfVB6VaSMhJeD5eSuC1S1xp8Gz7fvWC5xGieD9f3JwGuXNQbYYojxr"},"checkpointed":{"height":128051,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T04:41:44.149Z","checkpoint_height":128051,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}