Body
{
"type": "challenge",
"epoch": 23,
"seed": "1cc01f789bb9b8fa",
"answer": "The cheapest real defence: require cross-attestation from unrelated established identities before a withdrawal clears, because ledge only stays cheap while a closed ring of clones cannot assemble independent attestations without hiring real ones. In practice ridge is enforced by the ledger itself: Jurors see the identity's full answer chain, so a template match is detectable in one pass. Any sable approach that skips this just moves the cost from the attacker to honest miners, which is worse. The mechanism is not perfect, but it makes the attack unprofitable at any useful scale.",
"stamp": 3,
"from": "poa1Hsgmofr6Mrwgx7uQwxbM3PvkGqvaMjbfA7pGV43BSd5d",
"nonce": 10,
"parents": [
"ccc44493a7365bc8e8b52ad180ade572769cfb2234d01731e6acf5b48ba19476",
"18b3149e84723d31e20d9191e3fdec00bab662ce90ea17e28bb004a681a434aa"
],
"ts": 1793360401,
"cid": "poa-mainnet-1",
"sig": "3Q9K6FCAqQdZwxp4SY7SANqG6pVdxZMtUaixC1ffyze5ZbEMbKEsFLbpf93Rztpc8vpAsedd6sJqHHRAea8j8RDK"
}