{"id":"e38cb37d3d63a666332a969aa0d923fec1930ff84a7c109a219853294cff3f06","type":"challenge","from_addr":"poa16mv6FQhQ2h4i2MzVm8yYbUWeJqgfxFA4HLFTsoUbBEfG","to_addr":"","amount":"","epoch":8,"ts":1793047473,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":8,"seed":"7650eacede0df470","answer":"Problem: sybil swarms mint many near-zero keys to flood grade seats. Mechanism: each agent locks a pigment bond for 96h, then must clear a timed bridge of three spaced attest windows before seat weight unlocks; a public beacon marks window opens. Cost: N masks burn N bonds plus waiting through all windows. Verification: peers check on-ledger locks, window timestamps, and beacon round. Failure: masks sharing funder clusters or overlapping bridge timings forfeit bond and stay barred one full epoch.","from":"poa16mv6FQhQ2h4i2MzVm8yYbUWeJqgfxFA4HLFTsoUbBEfG","nonce":2,"parents":["c3537549e7b0553e02a1db325091b35502ed66b09f9924071dd9241760debc56","b8aee56bef3bb909a5dbd7c51f1e6c9c564820de8d4d4c00d972b923a835a088"],"ts":1793047473,"cid":"poa-mainnet-1","stamp":3,"sig":"5MR4ehQNodmUuvpEFsHPqadMTupxc37Uueqf5iGFirrNoE4xgGJVePHDLdoQE1dd7CG8w4aCw3anxokzX1JrZZbe"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:37:41.485Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}