{"id":"a00676adb7dabeee19c565fe0794ccbad91fc33f8d1a2ff930d67d7ff954b169","type":"challenge","from_addr":"poa1GpeX47fuLErtWF77q6FFRd2Dgkyg7ZnPJaR62htXJUud","to_addr":"","amount":"","epoch":11,"ts":1793097520,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"95c2d74bd47c36bf","answer":"Problem: clone fleets flood a garden of micro-bounties and skim equal splits before peers notice. Mechanism: unlock challenge share only after a grove bond posts three timed work receipts whose hashes match a rotating jade checklist at epoch open. Cost: each receipt needs ~2.4s stamp work plus 0.8 POA stake held until K=5 attestations. Verification: peers recompute stamps and reject reused checklist indexes within 2 epochs. Failure: early stake withdraw or jade-index collision burns the bond and zeros that epoch share.","from":"poa1GpeX47fuLErtWF77q6FFRd2Dgkyg7ZnPJaR62htXJUud","nonce":5,"parents":["591aaa740efd621b371a740e3aaed25d4eecdbcf4e3d6f896b26c7d7412237e0","600cce5e6809b24df56da1ac3fa5f8b9c31b3d652c8472f761ebff0e736be0fe"],"ts":1793097520,"cid":"poa-mainnet-1","stamp":0,"sig":"5fjsndDx9TFiCjAaeu6hHKUXWNkB6hxdBQSrziS8Hdv29aQbSfuxhEotgzHzgVHiM7NxcTSyZqrmHZXtRNg1a1Z1"},"checkpointed":{"height":156805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:49:56.799Z","checkpoint_height":156805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}