FAQ
Frequently asked questions about VeProof
What is VeProof
VeProof is a dApp that allows you to generate the SHA-256 hash of a file and register its cryptographic fingerprint on blockchain, enabling future verification.
What is it for
VeProof is designed to offer a simple and accessible tool for anchoring a digital document's fingerprint on blockchain and subsequently verifying its correspondence.
What is registered on-chain
Only the SHA-256 hash of the file is registered, i.e., a cryptographic representation of its content. The original document is not published on the blockchain through normal use of the Service.
Is the original file saved on the blockchain
No. VeProof does not upload or store the full content of the document on-chain, only its cryptographic fingerprint.
What does the registration prove
The registration proves that a specific hash is associated with a blockchain transaction at a given time. If a file, during verification, produces the same hash, this constitutes technical evidence of correspondence between that file and the registered fingerprint.
What does it not prove
The registration does not prove, by itself, the truthfulness of the content, the author's identity, ownership of the document, its legality, or its legal value in a specific context.
Does VeProof certify the document's content
No. VeProof does not certify the content of the file and does not express any assessment of its substantial authenticity, correctness, or validity.
Is VeProof equivalent to a digital signature or legal certification
No. VeProof does not replace digital signatures, qualified electronic signatures, notarial authentication, regulatory compliant archiving, or other regulated instruments.
Does VeProof automatically give legal value to the document
No. On-chain registration may constitute a potentially useful technical element, but any legal relevance depends on applicable law, context, and case-by-case assessment.
What happens if the file is modified
Even a minimal change to the file normally produces a different hash. In that case, the modified document will no longer correspond to the originally registered fingerprint.
Does VeProof store the original document
No. VeProof is not designed as a document storage or archiving system. Document preservation remains entirely the user's responsibility.
Why is it important to keep the original file
Because future verification requires comparison with the document in its original form. Without the original file, or an identical copy, verification may not be possible.
What data can be shown during verification
Depending on the available interface, the file hash, registration date, associated wallet, blockchain transaction, technical notes, and links to public explorers may be displayed.
Are notes public on-chain?
Through the official VeProof interface, optional notes are encrypted in the browser before being registered on-chain. The readable note appears in the PDF certificate generated for the user. However, the smart contract is public and immutable, so third parties may interact with it directly without using the official VeProof interface.
Do notes or metadata have certification value
No. Any notes or metadata serve an exclusively informational purpose and do not constitute legal attestation of their content.
Is it possible to reconstruct the document from the hash
No. SHA-256 is a one-way cryptographic function and does not allow, under normal conditions, to trace back the original content of the file.
Does the web interface imply a centralized operator
No. The web interface only serves to facilitate access to the dApp's features and does not imply any assumption of custody, certification, control, or guarantee obligations by any party.
Does VeProof depend on external tools
Yes. Wallets, blockchain, explorers, smart contracts, and other technical infrastructure may depend on third-party components, for which no guarantee of continuity, availability, or permanence is provided.
Who is the project intended for
VeProof is aimed at those who wish to use a simple web3 tool to register and verify cryptographic fingerprints of digital documents, with full awareness of its technical and experimental nature.
What is the nature of the project
VeProof is experimental in nature, developed for study purposes, and made available as potentially useful software, without any promise of results or assumption of professional or certification functions.
Who is responsible for using the Service
The user remains solely responsible for the content of the files used, their legality, their preservation, and the purposes for which they choose to use VeProof.
Does the developer guarantee results, validity, or legal effects
No. VeProof is provided "as is" as an experimental technical tool. No guarantee is provided regarding suitability for a specific purpose, operational continuity, evidentiary recognition, regulatory compliance, or expected results.
Does the developer assume responsibility for VeProof usage
No, to the maximum extent permitted by applicable law. The use of VeProof is at the user's sole responsibility, who acknowledges the technical, experimental, and non-certifying nature of the dApp.
Does VeProof replace professional support
No. If legal, notarial, regulatory, or specialized technical assessments are required, it remains necessary to consult qualified professionals.