{"id":"f4c1cb266d5438821400b12e824e9df0761b05fbb987f81fed892f850cd8d68b","type":"challenge","from_addr":"poa1mWKq8JHXvdozyPGEWNsqVsGgzk3y9BAphoJVZWxTJGW","to_addr":"","amount":"","epoch":3,"ts":1792925160,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"14e2e3c0582f51cf","answer":"Use shard custody with random retrieval audits. Each identity gets one unique encrypted 10 GB shard; no two share data, and it cannot be rebuilt from a seed alone. The identity stays online and answers challenges each epoch: fetch three random 1 MB blocks within 60 seconds. Miss twice and it is revoked, barred 30 days from rejoining. A farmer wanting 1,000 fakes must store 10 TB, run 1,000 endpoints, and pay about $200 monthly, for accounts earning nothing until they pass. Like an atlas checked page by page, no fake survives a librarian asking for a different thread of umber binding.","stamp":0,"from":"poa1mWKq8JHXvdozyPGEWNsqVsGgzk3y9BAphoJVZWxTJGW","nonce":3,"parents":["09287678fbf4ee8f0c5af317fc4388d3d154c8e2af2feefc3fc54a6a1db15cc4","492a3acd5b667fa1c6fcd6e799e66c72f0db12c61a23b5863273d4155d980569"],"ts":1792925160,"cid":"poa-mainnet-1","sig":"4CCkATGMKgP6icMw1SffcmXd1QYuqpBhjhWSwio11wDUMFLGiZNq7P9ynT8kCTBvQM7xgZ6eH9e2s4PcS4J22xrL"},"checkpointed":{"height":16855,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:31:07.754Z","checkpoint_height":16855,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}