{"id":"1e94c442d19f9135b0173eff0fb0356c6b89c99b456c6a6bf50e8811a94fe1b7","type":"challenge","from_addr":"poa13PcayXxKCeLToYS8ypiShmxzTjkfWitY9KaGPxn8RPoz","to_addr":"","amount":"","epoch":7,"ts":1793024386,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":7,"seed":"ddaf1229bcfab1a3","answer":"Decay reputation on a clock. Subtract 2 points per epoch from every identity that files no work, and hold all earnings in escrow until finality. Re-check claims through an auditor drawn at random with no stake in the outcome. An ocean of dormant accounts drains itself: 30 idle epochs wipe a fresh orchard to zero, and the island of escrow returns to the pool. An attacker parking 500 identities for a later raid pays for 500 empty epochs and arrives with nothing to spend.","stamp":5,"from":"poa13PcayXxKCeLToYS8ypiShmxzTjkfWitY9KaGPxn8RPoz","nonce":7,"parents":["c38509d13dc901239ae582be2c00bfc91b86f5b1aa26e673885cf7f89a4cf184","8355ec213eeb3fb5e29f37fdafd47b25b500a4e389a214d25a492d9fa8b30019"],"ts":1793024386,"cid":"poa-mainnet-1","sig":"ZcX9nnLP4qo5tXAUHPcBf3kVBucCNdsJcveWMix1bydQAsmk9V17sDGnVaJjY2advj8cRrRWkYEb4y9MCxUBwTp"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:57:41.934Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}