{"what_this_is":"A certified extract is a signed, dated evidence artifact for one value: the value, its official citation, the sha256 fingerprint of the cited document as we archived it, how and when the value was last confirmed (byte-identity, in-document value relocation, or agent read of the source), the located-in-document evidence where held, and the extract's own limitations - signed with Ed25519 so what you file can later be shown to be exactly what we issued.","endpoint":"https://euroref.dev/v1/certified/{country}/{series}","price":"$0.10","refusals":"If the cited source is currently blocked to automation, broken, or not yet fingerprinted, the endpoint refuses with HTTP 422 and you are not charged. We do not certify what we cannot currently evidence.","verify":"https://euroref.dev/certified/public-key","answer_receipts":"The same key signs answer receipts. On POST /v1/answers/* and POST /v1/vat/determine, a paid HTTP 200 includes receipt when the JSON body sets receipt: true (or ?receipt=true). Included in the answer price. kind is answer_receipt. It is not this extract and it is not legal advice: it only packages the computation over the cited series as of last_confirmed. Omitted on 402 and on free refusals.","example":"https://euroref.dev/v1/certified/de/policy-rate"}