Recompute the fingerprint of your file (SHA-256). It must match. Proof independent of the platform, anchored on Bitcoin. SecureBitProof holds no private key.
Proof anchored on Bitcoin.
2. Traceability
Action history
Who accessed or acted — who, what, when.
When
Who
Action
Document
26 Oct 2026, 18:39
Marie Dupont
Opened
—
12 Oct 2026, 18:20
Marie Dupont
Opened
—
3 Oct 2026, 23:44
Marie Dupont
Opened
—
1 Oct 2026, 23:08
Marie Dupont
Opened
—
29 Sept 2026, 14:21
Marie Dupont
Download
Façade sud · J2 · indice A-14
29 Sept 2026, 13:25
Marie Dupont
Opened
—
29 Sept 2026, 12:52
Marie Dupont
Opened
—
29 Sept 2026, 08:41
Marie Dupont
Opened
—
28 Sept 2026, 22:52
Marie Dupont
Opened
—
28 Sept 2026, 20:29
Marie Dupont
Opened
—
28 Sept 2026, 19:34
Marie Dupont
Download
Jeu de plans J2
28 Sept 2026, 19:34
Marie Dupont
Download
Jeu de plans J2
28 Sept 2026, 19:34
Marie Dupont
Download
Jeu de plans J2
28 Sept 2026, 19:33
Marie Dupont
Download
Jeu de plans J2
28 Sept 2026, 19:29
Atelier démo
Edit
Jeu de plans J2
Fingerprint recordedLog
SHA-256 of the document. You can recompute it on your side. Bitcoin anchoring follows.
Recompute the fingerprint of your file (SHA-256). It must match. Proof independent of the platform, anchored on Bitcoin. SecureBitProof holds no private key.
3. Check integrity
Recompute the fingerprint, or open the public record. The proof is independent of the platform.
SecureBitProof is a service of Angel Group Sàrl (Switzerland · UID CHE-495.702.373 · CHE-495.702.373 TVA). It issues verifiable integrity proofs, anchored on Bitcoin. Usable on its own or alongside existing tools. Traceability option (who accessed or acted). Angel Group holds no Bitcoin private key. Any tokens are proof or access utilities, usable at issuance. They are not equity, credit, or a right to a return, and are not offered as an investment. Fees billed in CHF, VAT 8,1 % extra. Distinct from any activity requiring FINMA authorisation.
