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 \u2014 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"
}