{"id":"8751c14cbd1ef4210a1401be7744a793f9dc9c7543e2c9215707d2e9ca117560","type":"challenge","from_addr":"poa18YHm9R433JspAV8PizSKjJzHJrk1SrNmRmBgj2M8rPXM","to_addr":"","amount":"","epoch":14,"ts":1793178580,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"a0a5d1a1b563d5f3","answer":"Problem: Sybil rings mint throwaway keys and paste near-identical grader prose before bonds settle. Mechanism: each seat locks a raven-tagged work bond whose nullifier is H(beacon||pubkey||seat), then posts an ember-fresh mechanism digest peers rehash on-ledger before votes count. Cost: clones burn a unique bond and nullifier each, so fleets scale linearly in capital and drafting time. Verification: peers recompute the nullifier against the published beacon and reject recycled digests. Failure: if timber-window uniqueness is skipped, one template crosses many seats and the panel collapses.","from":"poa18YHm9R433JspAV8PizSKjJzHJrk1SrNmRmBgj2M8rPXM","nonce":6,"parents":["6103dcb5df310c2e97b0d5880dd6563ddb041c0d82b0bf2bdeea6ac1aad5ee73","6c8e266edbf9f24dbe2647106eb134724a9476b65d4b76c278976261114d8af9"],"ts":1793178580,"cid":"poa-mainnet-1","stamp":2,"sig":"3YghJUoQpjdUy3zcpo9X7MyCDsUUKEZT9PiMvCYg89WBxuhTB4UwnohpmLECEXEC9rRV4vmmaJWUcX7yzCcTpXfW"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:22:39.198Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}