DAPI offers two certification paths designed to create a verified, temporally documented baseline of identity and digital content, usable as a reference in cases of impersonation, deepfake, or manipulation. Both use forensic methodology, cryptographic hashes, and eIDAS qualified timestamps to create a structured, verifiable documentary package.
Private baseline or public certification of content
Establish your verified identity baseline with a completely private technical documentary package. No public exposure: only you receive the certificate.
Ideal for: preventive protection, deepfake defense, impersonation disputes
Verified identity baseline plus public certification of the content submitted for certification. Each certified item of content gets a publicly consultable verification record.
Ideal for: content creators, public figures, copyright protection, anti-manipulation
Private baseline, cryptographic hashes, qualified timestamp
Document what your identity materials were before improper use or profile cloning, supporting takedown requests and reports.
Certified reference materials for technical comparison. Certified photos and voice recordings act as a baseline for analysis of disputed content.
Certify before problems arise. Particularly useful for public figures, executives, and politicians exposed to impersonation risk.
Establish a certified voice baseline before phone scams or business email compromise attacks, supporting investigations and insurance claims.
Public verification of content, badge, and QR code
In addition to your private identity baseline, each item of online content you submit for certification can get a public verification record linking your verified identity to the specific content submitted for certification.
A real example of what certified publications look like:
Document the existence, integrity, and time certification of specific content, providing technical elements usable in support of takedown requests and disputes relating to ownership or use of the content. DAPI does not autonomously determine ownership of rights.
Display the DAPI badge on videos and posts as a deterrent against content theft. The public listing allows anyone to verify the record via QR code or link.
Attests when content existed in a specific form: useful in disputes over temporal priority, trade secrets, or creative works.
If someone creates altered versions of the content, the certified content provides a verifiable cryptographic and time reference, usable for comparison with disputed versions.
Media, clients, and partners can publicly verify the DAPI record associated with your content, without needing to contact you or DAPI directly.
What each certification path includes
| Feature | DAPI-IDS | DAPI-PUB |
|---|---|---|
| Verified identity baseline certification | ✓ | ✓ |
| SHA-256 cryptographic hashes | ✓ | ✓ |
| eIDAS qualified timestamp | ✓ | ✓ |
| Technical documentation (inspired by ISO/IEC 27037 principles) | ✓ | ✓ |
| Expert methodology and digital signature | ✓ | ✓ |
| Usage guide | ✓ | ✓ |
| Completely private (no public listing) | ✓ | ✓ |
| Public verification listings | – | ✓ |
| Per-publication certificate | – | ✓ |
| DAPI protection badge | – | ✓ |
| QR code for public verification | – | ✓ |
| Public profile page | – | ✓ |
| Identity-content association | – | ✓ |
Cryptographic hashes and qualified timestamp
A SHA-256 hash is a unique digital fingerprint of a file. If even a single byte changes, the fingerprint changes completely. This mathematical property makes hashing one of the most robust practical tools for integrity verification and for confirming that a file presented subsequently is identical to the file certified at a given point in time.
Every DAPI certificate includes a qualified electronic timestamp compliant with the eIDAS Regulation, attesting when certification took place. This timestamp can be independently verified using RFC 3161 validation tools.
DAPI uses qualified timestamp services compliant with eIDAS Regulation (EU) No. 910/2014. You can independently verify your timestamp certificate using the public verification tool.
Two distinct levels for verified identity and evidentiary accountability
DAPI creates a verified baseline of identity and digital content through technical elements such as cryptographic hashes, time references, and structured documentation.
When it becomes necessary to preserve over time declarations, context, declared authority, and evidentiary references relating to a decision or an event, the DAPI package can be used within EVIDE as a verified identity element and as a documentary reference.
EVIDE operates on a distinct level: it does not determine identity, does not automatically attribute authority, and does not establish the legal validity of a declaration. Instead, it preserves structured and verifiable elements so that they can subsequently be reconstructed and assessed in their context.
DAPI provides the verified identity baseline. EVIDE can use that reference within structured evidentiary records, keeping identity verification, declared authority, and context preservation separate.
Practical guidance for the most common contexts
When to use it: fake profiles, unauthorized use of images, impersonation on social platforms.
Which package: both work; DAPI-PUB strengthens the request with a public verification listing.
When to use it: deepfake defamation, identity theft, fraud, revenge porn, voice cloning scams, copyright disputes.
Which package: DAPI-IDS for identity disputes; DAPI-PUB for disputes relating to content, temporal anteriority, use, or declared ownership of rights.
When to use it: content theft, plagiarism, unauthorized republication, copyright disputes.
Which package: DAPI-PUB required (provides public verification and per-content certificates).
When to use it: unauthorized data processing, erasure requests, personality rights violations.
Which package: both work; DAPI-PUB adds a further public reference.
On the legal validity of DAPI certification
DAPI certification uses a methodology inspired by forensic standards (ISO/IEC 27037) and eIDAS qualified timestamps. Admissibility, weight, and evidentiary effects depend on the specific case, jurisdiction, and how the evidence is presented, and are determined by the competent authority according to applicable rules. We recommend consulting a lawyer for the correct introduction of the evidence in your proceeding.
DAPI-IDS is generally suitable to support reports of impersonation and fake profiles. DAPI-PUB strengthens the request by providing a public verification listing that the platform can consult directly.
DAPI-PUB is the relevant package. DAPI-IDS certifies your identity baseline but does not link specific content to you. DAPI-PUB creates per-content certificates with a public verification record, timestamp, and DAPI badge.
Yes. The already certified DAPI-IDS baseline can be used as a reference to later add DAPI-PUB, unless it needs updating because the identity materials are no longer representative or up to date.
The DAPI certificate contains only cryptographic hashes, not the files themselves. If you lose the original files, the certificate alone is not sufficient for verification, because third parties need to compare your current files against the certified hashes. For this reason, we recommend keeping the original files in multiple secure locations.
With DAPI-PUB, each certified publication gets a dedicated listing on verify.dapi-certification.com, accessible via direct link, QR code, or DAPI badge. These listings are not indexed by search engines and contain only the information you have explicitly certified. With DAPI-IDS, there is no public listing at all.
Hashes and timestamps constitute technical references to the certification performed. Their verifiability over time also depends on the preservation of the artifacts, certificates, and information necessary for validation. The practical validity of the baseline also depends on the identity materials remaining representative and up to date: if the identity document expires or the person's appearance changes significantly, it may be advisable to update the certification.
Platforms retain discretion in their own moderation decisions. Structured technical documentation nonetheless provides verifiable elements that can be taken into account when assessing the request.
To read before using the certification
Establish your verified baseline with DAPI-IDS or add public verification with DAPI-PUB. Don't wait for identity abuse to occur: certify today.
Forensic methodology · eIDAS qualified timestamp · Expert certification · Choose your privacy level