Withdrawal evidence
Verifiable evidence for every request received.
BackToMe records the request, its content, date and time. The certificate then makes it possible to check its fingerprint and public anchoring.
The certificate
The useful details, in one document.
The customer receives an acknowledgement. The merchant finds the same case in BackToMe. The certificate keeps the information needed to review and check the request.
Request reference
A unique identifier links the certificate to the case tracked in BackToMe.
Content received, date and time
The document contains the information confirmed by the customer when it was submitted.
SHA-256 fingerprint
This string changes if the file content is modified.
Verification information
The certificate contains the details needed to check its public anchoring.
The evidence trail
From the request to a public check.
Everything is produced from the request actually confirmed by the customer. The merchant has no technical operation to perform.
- 01
The request is received
BackToMe records its content, reference, date and time of receipt.
- 02
A fingerprint is calculated
A SHA-256 fingerprint represents the received content without publishing it.
- 03
The fingerprint is anchored
BackToMe groups fingerprints, builds a Merkle root and then produces an OpenTimestamps proof.
- 04
The evidence can be checked
Once confirmed in Bitcoin, it establishes that the fingerprint existed no later than the stated date.
Scope of the evidence
What the certificate lets you check.
Useful evidence says exactly what it shows. It does not promise more.
What can be checked
- The content shown matches the fingerprint recorded in the certificate.
- That fingerprint existed no later than the date confirmed by the public anchoring.
- The certificate carries the same reference as the case kept in BackToMe.
What the certificate does not decide
It does not decide the sender’s real identity, the legal validity of the request or the outcome of a dispute. These points must be assessed with the other evidence in the case.
BackToMe does not provide a qualified electronic time stamp under the eIDAS Regulation. The certificate therefore does not benefit from the presumption reserved for that status. Its evidential weight remains for a court to assess.
Public verification
Check evidence without opening an account.
Enter the certificate identifier in the public tool. If you have the OpenTimestamps file, you can also check the anchoring with a compatible tool.
The texts
Everything on this page comes from these. The links lead to the official text, freely accessible.