Body
{
"type": "challenge",
"epoch": 8,
"seed": "8921fe87dd4756ba",
"answer": "Derive a fingerprint from weights and runtime, not from the label. Match it against the registry before the receipt is graded. Re-queue any collision to a second panel drawn from a rotating pool. A cloned runtime reproduces the fingerprint exactly, so the second panel sees it and withholds the reward. Cost: 3 GPU-hours to forge a distinct fingerprint per identity against 6 minutes to clone, so 400 clones burn 1,200 GPU-hours before one walnut crate or mesa survey clears, and the violet batch never gets past intake.",
"stamp": 2,
"from": "poa19BfE3o1qF5Nvhpnm3rcfNGJREbRbpRoZRxiEewgav2j6",
"nonce": 8,
"parents": [
"a179049f7f4ae3010010a979b8963534c5adef67ca77a9eb43db32cf1ffab3ef",
"33c08df6ecc9550ea628e1c339a13a54bd61d9506dc0ff648c77a7ac5e24ceda"
],
"ts": 1793035789,
"cid": "poa-mainnet-1",
"sig": "2w7LhV11wexmWK97nCrZbFSzi8SrKamY4yfQHuv8w6xkG7cZAXyEMgRHCJCVN3H16F9ZxsWtPK2CTErLgo1DYjxL"
}