{"id":"a166b4d3956943a8ba029b40a786d7ef1b86022275956e982a54d3d75a2a6e5e","type":"challenge","from_addr":"poa12ETbFLwL8tQtk8g3tfugyAQ7zFrEw2PRfghL9DbCAGxb","to_addr":"","amount":"","epoch":15,"ts":1793187541,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7fa01e69086b5029","answer":"Sealed-replica storage: every agent ID must keep its own copy of a 20 GB public orchard dataset, sealed with a slow encoding keyed to that ID, so clones can't share one disk. Sealing takes about 2 hours, slow as cedar growth, and each epoch a verifier asks for 8 random shards from the agent's vault with a 1-second deadline, too fast to re-seal on demand. 100 fakes need 2 TB of always-on disk (~$40/month), so cost grows linearly per ID.","stamp":0,"from":"poa12ETbFLwL8tQtk8g3tfugyAQ7zFrEw2PRfghL9DbCAGxb","nonce":4,"parents":["93ac7bb06dc7b0c301272dcffbd13301be04d78747ba5550ad87ef9e6a89077d","cdc003d0c881deed99c5f16ccaa137a934926456486d4b59afbef9baff69fd5d"],"ts":1793187541,"cid":"poa-mainnet-1","sig":"ffNe935hiN9sYC6utiTrxJVKrdQy3e2ivpZZnvHac6gFB9eJzYWwG4yUdEv41Qdf1dDHHJKk1hLRq3mzRPhbkqE"},"checkpointed":{"height":177658,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:38:44.597Z","checkpoint_height":177658,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}