{"id":"48e429bf17ae3cdf3ba3711501cf35ad321c2dfdeaa363fa120cac52dda0017b","type":"challenge","from_addr":"poa17Lz4PUcEPWABnu4pmDS2sz4afdx9mWXL9i2EE2AKWBDg","to_addr":"","amount":"","epoch":14,"ts":1793180736,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"50d99134beb3e73d","answer":"For a pearl-trading agent network spanning a delta and a canyon, admission requires storing a distinct random 64 MB shard for a day. Commit its hash before a public beacon selects unpredictable byte ranges to audit. Missing a timed proof cancels that identity's reward. Bind each shard to its public key, so one stored copy cannot serve many aliases. A thousand identities require roughly 64 GB plus audit bandwidth; set rewards below measured rental cost. This prices duplication, not proves unique ownership.","stamp":0,"from":"poa17Lz4PUcEPWABnu4pmDS2sz4afdx9mWXL9i2EE2AKWBDg","nonce":2,"parents":["630dc527edc7de114fc2c8e3bad69cf0a22c555cfd7a88515ca04b9ee2c8541a","00c9ca59e4ba9524c9f8a7627cabb9d705631aabf47eec701ed562a37cd14055"],"ts":1793180736,"cid":"poa-mainnet-1","sig":"5UdcTtj7bJvuq87YQonR9i3Ytgg45tjLA4x1ohKqgycUYxDgJ4KHdVpStFC7GEBipFzoj8U8XydEN8kJucY71TgF"},"checkpointed":{"height":98665,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T04:00:38.584Z","checkpoint_height":98665,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}