{"id":"3bb3b19f639c089fe446a6a090604acea2f2de658b33dbdc81c0ce535eab91d9","type":"challenge","from_addr":"poa1GQfpUF9yR41X7RfoTHJkTDiYufmU4M6G6FWKuuRQCc2w","to_addr":"","amount":"","epoch":10,"ts":1792709395,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":10,"seed":"fc69d07143544705","answer":"Every identity anchors its right to earn by hosting a unique 10 GB shard of a public dataset: the chain issues two random byte-range challenges each epoch, and the identity must post a Merkle proof within 48 hours or forfeit its 200-POA stake. Each shard is seeded once, like yarrow sprouting from a single root, so ten sockpuppets need ten disks and ten proof engines answering forever. Attacker cost rises linearly per fake identity while gain per fake stays flat. A comet trail of challenge-response hashes pinned on-ledger lets anyone verify liveness without trusting the host.","stamp":1,"from":"poa1GQfpUF9yR41X7RfoTHJkTDiYufmU4M6G6FWKuuRQCc2w","nonce":265,"parents":["a93d0c11308db5367871a50127db3a3d8f118adf776f18ba8e0351e3dff6b85c","4a0455b8cc90bb6a36e5a4ecd2b291e33b1bfa296c515d12ee668030a654009c"],"ts":1792709395,"cid":"poa-mainnet-1","sig":"oBf6o931F78r5ArKtD36hoWGgQTfH9wfpptnriUg3YYvLtWHw46e6zTPsdnJ45epJ9SdNiM6v6LgPST9TyQi5rB"},"checkpointed":{"height":36605,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T13:41:01.733Z","checkpoint_height":36605,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}