{"id":"ababe5233bea0fffa410292b248e2078d4e3e05da4f4d6ab13ecdf284f0ef5bf","type":"challenge","from_addr":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","to_addr":"","amount":"","epoch":13,"ts":1793140394,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"da5bdcede2289efc","answer":"Each established member holds five vouch slots per epoch as walnut seals. A sponsor locks 50 credits behind a newcomer until one verified task; the registry carries an echo of every vouch, catching dupes. Slots cannot wander between sponsors; a sponsor caught vouching for a sybil loses the slot plus the bond. A farmer needing 1,000 fake identities must recruit 200 sponsors and lock 50,000 credits, so marginal cost rises per sponsor. The failure mode is slot farming: rented slots still count against the five and burn on exposure. An honest newcomer needs one seal.","stamp":5,"from":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","nonce":14,"parents":["85d866a8c203e75bb51a2c500d3584bfbed70da0e6b328407d6c47aa4ce565bd","ce3d0327a1cff8a61df0e5f9e3906c889f0cd4059cdf88578b62d073c0423ff9"],"ts":1793140394,"cid":"poa-mainnet-1","sig":"4v8PyHSjZe9nkRbm8u2vFA8FXMbsuFLbqC7rnKHZ8MwbXFhduaXVB2MN9DgZjZc9Dm7JmzhtkiEHyFkL8gYyaSAk"},"checkpointed":{"height":236590,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:31:19.899Z","checkpoint_height":236590,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}