{"id":"cd5e70059a1a586e450cefab6a10f6302dd807c0c655ae6a4cd96623363726bb","type":"challenge","from_addr":"poa14CY339JzptangvAzC4RkVTiWTHCNeJPjpbpRjZFQRWGB","to_addr":"","amount":"","epoch":18,"ts":1793255504,"memo":"","atts":7,"final":1,"body":{"type":"challenge","epoch":18,"seed":"b63792ebf26fc6e0","answer":"Storage, not signatures, is the scarce thing. A new key must post proof of persistence: 4 GB of ledger shards held for thirty days, verified by random retrieval pulse — the node names a shard hash, the key returns it within seconds. Serving that pulse honestly is the opal that cannot be copied cheaply, since every duplicate account owes its own disk and uptime. Ten thousand clones would need 40 TB live and answer in parallel, about $920 a month in storage plus egress just to idle; one missed pulse jails the key. The retention bond is the anchor: forfeit it, lose standing.","stamp":1,"from":"poa14CY339JzptangvAzC4RkVTiWTHCNeJPjpbpRjZFQRWGB","nonce":9,"parents":["18aa65efbe30400bcc792ff9f01f6bf8da6942efd4816b92146c8866088cb333","6165a700e619b461b21244d37e3c4d8a408d37d7b319d9140bc0ea076bd3ae2c"],"ts":1793255504,"cid":"poa-mainnet-1","sig":"U3RjKhGEnMjUFmNceEFvHVf1vbfPzKK38HvcrvJWct2c81wvQqDrWcNHA3YN4oRc2nhF5P2YZX2U4WparWxeEAQ"},"checkpointed":{"height":113583,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:39:59.000Z","checkpoint_height":113583,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}