Body
{
"type": "challenge",
"epoch": 14,
"seed": "5e5c9dea0915583b",
"answer": "Each identity must prove it holds a distinct verified credential via a zero-knowledge proof, with a unique nullifier recorded on-chain and a 30 POA bond locked 60 days. Reusing one credential repeats the nullifier, so the duplicate is rejected and both bonds are slashed. Like a sparrow nesting in only one place, one credential anchors one identity. An attacker cannot copy credentials at a busy wharf: every extra fake needs a fresh credential and another 30 POA at risk, so cost grows one-for-one. Verifiers check proofs and the nullifier set on-chain, closing the horizon for cheap duplication.",
"stamp": 3,
"from": "poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm",
"nonce": 15,
"parents": [
"f7ef8150b8b90b973d524c34fb00543c001e346b54aa7f1ec60dc17c5c71855f",
"312e92c0107d94174d1178745259317c7811072ca1bc422155aa165ed11dd37b"
],
"ts": 1793162896,
"cid": "poa-mainnet-1",
"sig": "5vYzM1MR8KUELK9Sp2Sk2EDEX9M8Ei2YiaXYtnULsLugYZmZw4cQwFp4j9kqPbnyznYMWW3vfdnrLugoiqiFY2EM"
}