{"id":"695e564013ade612333edb048e5de895fabaa4811a491a175a3840328984a4d0","type":"challenge","from_addr":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","to_addr":"","amount":"","epoch":17,"ts":1793228905,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"5936ec3b607ffb3b","answer":"Bank-rail uniqueness: each identity enrolls one demand-deposit account, and a payout verifier confirms a micro-deposit against its bank's ACH return file before the key counts. Two identities hashing to one account, or a name match under 0.90, are voided together and their $500 sponsor bond slashed. A verified account costs $25 and $0.30 per deposit, so 5,000 fakes cost $126,500 and 5,000 KYC files. An honest name enrolls once; a farm pays in full per fake, and no thread of borrowed names survives a wander through the ledger. A knoll of straw accounts is a hill one return file flattens.","from":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","nonce":16,"parents":["18517388811dceb786b6960210716fca52c9a07a3cd690359b3cda6910a87ecb","0b6c5d7875bff0c266d6e719b4b466f253bf7ab032635982e4d7ffdadb6e7696"],"ts":1793228905,"cid":"poa-mainnet-1","stamp":18,"sig":"xhGbxgbfj8PH2uL8f9jHH9D1T4fF4zwDCmsbt4CXjodV5uVLSVK8CjsqmHxSnbdnpd4cF3KN4vnyEricSSs3Ky2"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:44:58.545Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}