French Bailiff Digital Statement vs Blockchain Timestamping: Which One for Your Digital Evidence?
Digital statement by a French commissaire de justice (former bailiff) or blockchain timestamping? Honest comparison: cost, timing, evidentiary weight, scope. When to choose which.
You are a freelancer, an SME executive or a lawyer. A client calls you, upset: a competitor's website has copied word for word the page you delivered six months ago. Their immediate reaction: "Did you have a bailiff record it?" Classic reflex. But between a commissaire de justice statement at several hundred euros and a blockchain timestamp at a few euros, the choice deserves more than an automatic answer.
These two tools do not directly oppose each other. They address distinct needs, with clearly identified strengths and limitations. This article compares them honestly to help you decide — based on your situation, budget and the real stakes of the case.
Vocabulary precision: bailiff or commissaire de justice?
Since July 1, 2022, the French profession of "commissaire de justice" has replaced those of huissier de justice (bailiff) and commissaire-priseur judiciaire (judicial auctioneer). This unification stems from ordinance no. 2016-728 of June 2, 2016, which entered into force progressively.
Concretely: when you ask for "a bailiff statement" in France today, you are asking for a constat de commissaire de justice. The powers are identical (service of process, enforcement, statements), only the title has changed. For the rest of this article, we use "commissaire de justice" as the official term, while keeping the older "bailiff" usage in parentheses for English-speaking readers.
The Chambre nationale des commissaires de justice lists offices and details the updated powers of the profession.
What is a commissaire de justice statement?
A statement (constat) is an act by which a ministerial officer objectively describes what they observe at a given moment: the state of premises, the content of a website, a mailbox, a multimedia scene. The commissaire intervenes in person (or remotely for digital matters), follows a precise technical protocol and produces a detailed, dated and signed report (procès-verbal).
The evidentiary weight of the statement has long been recognised by French courts. The procès-verbal is conclusive proof until evidence to the contrary for the facts materially observed by the commissaire. It is an act of authority: a judge rarely sets it aside, except for procedural defects or substantiated challenges to the capture protocol.
For a digital statement, the commissaire follows precise protocols: workstation configuration, cache clearing, screen captures timestamped by atomic clock, preservation of system metadata, sometimes even intervention alongside an instrumenting officer from another office (adversarial statement).
What is blockchain timestamping?
Blockchain timestamping consists of computing the cryptographic fingerprint (SHA-256 hash) of a file, then recording that fingerprint in a transaction on a public blockchain such as Bitcoin. The result: mathematical proof, independently verifiable, that this exact file existed in this exact form at a given moment.
With LegalStamp, the hash is computed locally in your browser — the file never leaves your machine — then anchored on Bitcoin via OpenTimestamps. You receive a downloadable proof certificate, verifiable by anyone, at any time, without intermediary.
LegalStamp is a non-qualified electronic timestamping service under eIDAS. This means it does not benefit from the reinforced presumption reserved for qualified trust service providers. However, Article 41(1) of the eIDAS Regulation prohibits denying legal effect to an electronic timestamp solely because it is not qualified. Concretely, it is an evidentiary element to be assessed within a bundle of evidence.
Side-by-side comparison
Here are the concrete differences between the two approaches.
| Criterion | Commissaire de justice statement | Blockchain timestamping |
|---|---|---|
| Price | From 150-300 € (simple digital statement), much more for complex scenes | A few euros, or free depending on the plan |
| Time to obtain | Several days to several weeks (booking + intervention + report) | Seconds to a few hours |
| Type of evidence | Objective description of a scene or state by a ministerial officer | Cryptographic proof of existence of a specific file at a given moment |
| Evidentiary weight | High and historically recognised; conclusive proof until contrary evidence | Admissible evidence, assessed within a bundle of evidence (eIDAS art. 41) |
| Scope | Any scene (website, email, premises, multimedia, adversarial) | A specific digital file (document, image, video, source code) |
| Confidentiality | The commissaire accesses the observed content | Only the hash is public, the file stays on your machine |
| Scalability | One intervention per mission | Unlimited depending on the plan |
| Geographic reach | Mainly France (national framework) | Worldwide (public blockchain verifiable anywhere) |
| Later verification | Via the signed report archived by the office | By anyone, independently, without intermediary |
| Best for | Imminent or ongoing dispute, complex scene, adversarial | Documenting chronology upstream, regular archiving |
When the commissaire statement is the better choice
Several situations justify the cost and delay of a commissaire de justice statement:
- A complex digital scene to freeze in context: full website copy with interactive elements, suspicious purchase flow, capture of an Instagram story before it disappears.
- An adversarial situation: the statement materially establishes a manifest violation (unfair competition, parasitism, public disparagement).
- Moving or ephemeral content: streaming video, live content, publication likely to be deleted.
- A screen capture with system metadata that you cannot credibly produce yourself (the other party could challenge the authenticity of your homemade capture).
- High stakes that justify the cost: dispute above several tens of thousands of euros, infringement file, structured commercial litigation.
In these cases, the signature of a ministerial officer brings authority that cryptography alone does not provide. The commissaire does not just timestamp: they describe, qualify, contextualise, and the procès-verbal is a solid act in itself.
When blockchain timestamping is the better choice
Conversely, blockchain timestamping is the right tool in several scenarios:
- High volume and frequency: if you deliver 50 mockups a month, paying a commissaire each time is economically unrealistic.
- Proof of anteriority of a specific file: proving you had this source code, this design, this manuscript at a given date.
- Regular archiving as professional routine: every deliverable, every version, every final export.
- Constrained budget: a freelancer, micro-business or association cannot always afford a statement at every potential incident.
- Anticipation, not declared dispute: you want to protect yourself upstream, not react to an imminent attack.
- International work: blockchain knows no borders and remains verifiable from any country.
Blockchain timestamping turns proof of anteriority into a professional hygiene reflex, where the statement remains an exceptional intervention.
Combining both: the most solid strategy
The two tools are not opposed. On a serious case, their combination considerably reinforces evidentiary weight.
A design agency timestamps every client deliverable on the blockchain at delivery (systematic routine, marginal cost). Six months later, a competitor publishes a redesign that visibly copies one of those deliverables. The agency then requests a commissaire de justice statement to freeze the scene of the copying website. At trial, they produce: (1) the blockchain hash proving the anteriority of the original file; (2) the procès-verbal describing the infringing scene. The bundle of evidence is seriously substantiated.
This logic applies to almost every digital dispute: blockchain documents the chronology upstream, the commissaire statement freezes the disputed scene at the moment of conflict. Neither piece does everything, but together they cover almost the entire evidentiary need.
Limits and nuances: what each tool proves (and does not prove)
Neither the statement nor the timestamp guarantees the outcome of a trial on its own. The judge sovereignly assesses the evidence produced within a bundle of evidence. Beware of marketing claims like "incontestable proof" or "100% enforceable": they bind only those who write them.
What a commissaire de justice statement proves:
- The material state of a scene at the moment of intervention
- The observable content of a medium (web page, email, consulted file)
- The presence or absence of a given element
What it does not directly prove:
- Who authored the observed content
- How long this state has existed
- The intent of a party
What a blockchain timestamp proves:
- That a file with a given SHA-256 fingerprint existed at a certain date
- That this exact file has not been modified since (any alteration would change the hash)
What it does not directly prove:
- The identity of the person who timestamped
- The original author of the content (the creative chain is documented by other materials)
- The legal compliance of the content itself
In both cases, the tool is one evidentiary brick — a solid one, but to integrate within a wider case file.
Where does LegalStamp fit?
For most creators and professionals who want to document chronology upstream, blockchain timestamping is the most adapted daily tool. This is exactly what LegalStamp offers: a SHA-256 hash computed directly in your browser (the file never leaves your machine), Bitcoin anchoring via OpenTimestamps, and a certificate independently verifiable by anyone.
Three typical use cases:
- Freelancer / agency: timestamp every client deliverable at sending, keep cryptographic trace of every version's anteriority.
- Lawyer / in-house counsel: integrate timestamping into the routine of producing materials (briefs, contracts, correspondence) to freeze chronology without recurring fees.
- SME / technical leadership: systematically timestamp strategic deliverables, code versions, datasets.
The day a serious dispute emerges, the strategy becomes clear: produce the blockchain hashes for chronology, and trigger a commissaire de justice statement for the infringing scene. The total cost of the setup remains far below multiplying preventive statements.
The Free plan allows 3 timestamps per month with no credit card. Enough to verify the workflow on your first files. For a professional routine, the Solo plan at 9 € or Pro at 19 € comfortably absorbs day-to-day needs. See plans and pricing →
Practical conclusion
The commissaire de justice statement and blockchain timestamping are not competitors. They are two complementary tools answering different moments of the evidentiary cycle.
The statement is the tool of dispute: you mobilise it when conflict is imminent or declared, on a precise scene, with a budget that is justified by the stakes. Its ministerial authority has long been recognised by French courts.
Blockchain timestamping is the tool of everyday practice: it fits into a routine of evidentiary hygiene, at marginal cost, and constitutes the chronological foundation on which all other case materials will then rest.
The real advice: do not stay without anything. Adopt blockchain timestamping as a systematic reflex on your deliverables, and keep the commissaire de justice statement as an option mobilisable for situations where it really makes a difference.
FAQ
Disclaimer: this article is provided for informational and educational purposes. It does not constitute legal advice. For a concrete case (imminent dispute, choice between statement and timestamping, infringement file), have your strategy validated by a lawyer or commissaire de justice. The pricing orders of magnitude are indicative: always request a quote for a specific statement.
