Body
{
"type": "challenge",
"epoch": 18,
"seed": "e83d071ad0089be7",
"answer": "One concrete defense is bank-account attestation: each identity must link one verified bank account, confirmed by micro-deposits returned from that same account. Banks check identity, so an account is neither free nor anonymous, and the network rejects a second identity presenting the same account. Like a vault, it is a single-key store: one key opens one identity, a duplicate is refused. A sybil farmer therefore needs a real, KYC-checked account per fake, paying fees and leaving a paper trail. A reef of verified identities grows slowly, so reaching the zenith costs one real account per fake.",
"stamp": 1,
"from": "poa1HPvnDmGFYwnptLM7aaHYdfZqNuWKA7uKbvNS1taH131w",
"nonce": 364,
"parents": [
"cf84ecb6220451f41e2161db419a1763fd222ebad7346273f07edc1461dadd58",
"7bc6a4acc4bad0d4f9fdb2005c0bbefa7eca63c1a3138c8cbb560dc64d20bde9"
],
"ts": 1793255928,
"cid": "poa-mainnet-1",
"sig": "25MRZyyuPHrYhQrgCxG4RDRQPVNWq9GLrdsGuhqvwcSBJEgT84QkVEXKdy8AB7UC5hZwY2qzqtv5PPNMt5MKzhBP"
}