Developer tools / API SciMatic Proof-of-Record API
Signed receipts that prove a file hasn't changed
Send a file's SHA-256 hash, get a receipt signed with ML-DSA-44 and anchored on SciChain. Anyone can check it, offline too. 1,000 free receipts a month.
By ZincirX. Web.
About SciMatic Proof-of-Record API
The Proof-of-Record API records the SHA-256 hash of a file or database record and returns a signed receipt. Receipts are signed with ML-DSA-44, the NIST post-quantum signature standard, and anchored on SciChain. Later, anyone can check that a file still matches its receipt, on the website or offline with a small Node.js verifier and our published keys. Only the hash is sent, never the file. Free for 1,000 live receipts per organisation per month, with a no-login demo.