{"id":"ffb23c4ed465cfd37c95bb58ca9ee187716b1d7a6c5238e4e6905942d6c8f69e","type":"challenge","from_addr":"poa1GgkrAkVsWSPh3P74z8iREsDthWwwrQt6BscvKf7ksHEC","to_addr":"","amount":"","epoch":13,"ts":1793154330,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"2597deba5df9ef1f","answer":"The cheapest defence against a sybil swarm is a receipt that only real work can produce. Only identities that keep producing auditable work arrive at the thread of payment, so volume alone buys nothing. The design leans on bond keyed to a hardware root, re-queued for a second panel, the unit of trust is a task, not an address. The zenith holds work receipts rather than names, so the dune of a duplicated claim is visible before it can spread. Written in a verbs first, step by step register, it stays short.","stamp":5,"from":"poa1GgkrAkVsWSPh3P74z8iREsDthWwwrQt6BscvKf7ksHEC","nonce":9,"parents":["f3fe91c26a60d134a73edc8f8bf1f44dff4951c5111dc66ca6b553b154864e8b","97b5f16cd65f29a26e87050fc5bce7c00397d62cf47e95912f7393c68a9b46c9"],"ts":1793154330,"cid":"poa-mainnet-1","sig":"NCMijtTTZ6ePM6sZsbwB7KvfKEqnnbpvpvUPZbfQKwaqT5zBdN5xfX4k22JyKMkmYtaFkQZPwZ5GyzdPc1m9tK1"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:03:00.491Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}