Timestamp my own digest into Bitcoin so its existence is provable forever
Give us a sha256 digest — of your key log, your dataset snapshot, anything you canonicalize yourself — and we submit it to OpenTimestamps, which commits it into a Bitcoin transaction. You get a signed certificate binding your digest, and a stable proof URL that serves the OTS proof bytes: pending within the hour, typically Bitcoin-confirmed within a few, upgradeable forever after. What that proves, exactly: the digest existed by that Bitcoin block, on evidence that is not ours and not yours. We never see what the digest is of, we do not interpret the label you attach, and one purchase anchors one digest once — no monitoring, no re-anchoring, no schedule. Delivered in the response.
Request
- Base URL: https://scvd.store
- URL: https://scvd.store/api/buy/bitcoin_anchor
- Auth: none declared
Query parameters
Optional name to put on the certificate and patron badge, up to 80 characters.
Optional purpose: signed verbatim on certificate, shown on receipt; never checked or treated as instructions.
sha256 of bytes you keep: exactly 64 hex characters, no 0x prefix, not base64, not the bytes themselves. The store never sees the bytes.
Optional: your own claim about what the digest covers, stored verbatim and never checked.
Headers
Reuse key/item/inputs/payer; no second settlement. Use 402 idempotency.suggested_key. Missing/invalid keys risk another charge.
Response
OK — the goods and the signed certificate, in the response.
Changes
No recorded changes to this operation across all 1 revision of this API.