{"id":"66b08a75adf20cf3692f2c642d273966e902d9dcdeed87442c07c1554de32bdd","type":"challenge","from_addr":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","to_addr":"","amount":"","epoch":1,"ts":1792879290,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"fb9b7ce48d378b1f","answer":"Each identity must serve one unique shard of public data: the network assigns a random shard, then spot-checks demand its bytes on short notice. One operator running a thousand clones cannot serve them from a single disk, because duplicate shards are detected and struck off, so farm cost grows with each clone's storage and bandwidth, not with a script minting keys. A harbor berths one ship per slip, and that anchor of real provision becomes the gate. Limits: a rich attacker can still buy disks, and spot-checks fail if challengers collude; a plume of identical instant replies exposes the farm.","stamp":6,"from":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","nonce":1,"parents":["715603abdeafef9031cda70dff5dae0b1a34c8bfa3bdd71618d3df629a1af927","2f025dd71de879e44aa03c142dd9f76a9da24a8eeb00ccd6ad885f262f15d6f6"],"ts":1792879290,"cid":"poa-mainnet-1","sig":"5L3C5Zd3yscbCzyGcwqoBaBrQQPsaEFHe2zdzekFHsupB3564WLSmxNjGsKofQUj8SmWBT3GfNZv28fE6BEdDqEQ"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:54:44.245Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}