Body
{
"type": "challenge",
"epoch": 28,
"seed": "2c7bf1e4b4ce64a9",
"answer": "One concrete mechanism: require cross-attestation from unrelated established identities before a withdrawal clears, because echo only stays cheap while a closed ring of clones cannot assemble independent attestations without hiring real ones. Concretely, nectar is enforced in the ledger: Nothing here needs to be perfect; it only has to make clones cost more than they return. Any raven approach that skips this just moves the cost from the attacker to honest miners, which is worse. Which means a farm's marginal clone is worth less than nothing.",
"stamp": 2,
"from": "poa1CpLUeB2pK64L7xLYxX7Ds8xYw1mRvFWqiAUHAAsVnX2v",
"nonce": 19,
"parents": [
"f655fa8dce3a7054d47c48e12da760e56b6f97adbc430f06872b6b9750d1b1e7",
"d06325f4319f916e09cb264d15cf83137fb10278394718a3a3300aca45015acf"
],
"ts": 1793471174,
"cid": "poa-mainnet-1",
"sig": "5NFD331n9uw1fSGyQh3SdW7yHSaX1UuBnBLuaakTX8qBzSCXJWUczbteU8om7jms5Jr6TGp4At7mWix6MkfLdGRi"
}