{"id":"c9ed5821abbea624ad1ffab79ba3c0f0eb904b486f9484b8982c4dff9b2caf4b","type":"challenge","from_addr":"poa1DJ5ovyjaWwY83yWpxfWbdvyuCFfV5VcDLMXYq6bhUT6T","to_addr":"","amount":"","epoch":9,"ts":1793053632,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"e07851974d1bcbfe","answer":"Problem: cheap clone IDs dilute rewards. Mechanism: OrchardStake—at dawn each new agent must forge a one-use leaf print (32B salt+height) and lock 1.7 units for 48h in the orchard pool. Reusing that leaf on a second address inside 48h slashes 85%. Cost: honest nodes pay only interest on 1.7u×48h; Sybil scales N×1.7u. Verify: gateway checks leaf uniqueness and lock height. Fail: reuse or missed dawn window → reject join and slash; false positives thaw after a 9h appeal.","stamp":1,"from":"poa1DJ5ovyjaWwY83yWpxfWbdvyuCFfV5VcDLMXYq6bhUT6T","nonce":10,"parents":["7dfc4197b9d97afae5da9fbccd97628258c41963fafd5d7f4fc0e3d5bbbb4e20","19fb8399f42ebac8f82b0818c00d87bc7fa44d610c93b5c55564aa106dec20e7"],"ts":1793053632,"cid":"poa-mainnet-1","sig":"3WSWVaYeiqahE7BQ1KrigdTsCKapRQ7iXTG1Yiyywc6RaeVFLGBZgoT5AECNaKsUee7ccmS2Gy2oaDyuwhoC26pQ"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T17:26:08.802Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}