SOURCE 0 - THE ONTOLOGY OF PROOF

Formal framework of the probative categories and axioms from which the sectoral applications of the SOURCE 0 doctrine derive.

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No sectoral application of the SOURCE 0 doctrine — NIS 2 governance, DORA resilience, high-risk systems under the AI Act, customs automation, ADR transport, corporate governance — defines its own probative categories; all derive from the definitions fixed here. The doctrine distinguishes five registers of proof, ranked by their resistance to adversarial contestation and proper to SOURCE 0, not to a positive legal taxonomy: the trace, a record with no probative intent and no dissociation from the system it documents; the log, a structured trace carrying no general legal presumption of accuracy; the self-attestation, an unauthenticated unilateral declaration whose value depends on the independence of the process that verified it; opposable proof, a functional category established by a mechanism external to the party invoking it, whose effective opposability remains governed by the applicable law; and the legal presumption or the legal probative force, a legal effect that is acquired only by conformity to the text that institutes it, never by declaration. Two axioms structure the doctrine: the dissociation condition S ∩ C = ∅, satisfied when the operating system S holds no unilateral capacity to influence the content or the dating of what the capture layer C seals; and the T-0 instant, prior to the event it documents, without which no antecedence can be established retroactively. Their compliant implementation — canonicalisation, a documented cryptographic fingerprint, a qualified electronic timestamp compliant with Article 42 of the eIDAS Regulation, and deposit or a constat with a huissier de justice belge — constitutes the Historical Reality Dossier. This dossier establishes the existence and integrity of a given representation at the moment of sealing; it establishes neither its substantive truth, nor its exhaustiveness, nor the compliance of the conduct it documents after T-0. This limit is constitutive, not prudential: no sectoral application of SOURCE 0 may claim a procedural effect beyond what the applicable law expressly attaches to the instrument produced.

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EXECUTIVE SUMMARY

The sectoral applications of the SOURCE 0 doctrine share a single probative architecture, expressed until now separately in each page and each article that sets it out. This repetition creates a risk of drift: two independent formulations of the same mechanism eventually diverge over time.

This page fixes, once, the categories, the axioms and the limits of the doctrine, in a form that sectoral pages and doctrinal articles cite without reformulating. It addresses no sectoral law, no sector, no incident: it is the formal foundation from which those applications derive.

1 - THE REGISTERS OF PROOF

The SOURCE 0 doctrine distinguishes the following registers, ranked by their resistance to adversarial contestation. This hierarchy is a doctrinal categorisation proper to SOURCE 0, not a restatement of the Belgian law of evidence's taxonomy, which separately distinguishes admissibility, probative value and probative force according to criteria specific to each mode of proof.

1 - 1 The Trace

A trace is a record produced by a system as a by-product of its operation, without probative intent and without dissociation from the system it documents. An application log, an internal email, a dashboard belong to this register. The accumulation of traces from a single controlled source does not, on its own, create the independence that each of them lacks.

1 - 2 The Log

A log is a structured trace, timestamped by the system that produced it, whose timestamp carries no general legal presumption of accuracy in the absence of a special provision applicable to the sector concerned.

1 - 3 The Self-Attestation

A self-attestation is a declaration by which an organisation certifies its own compliance by means of instruments it controls. Under the law of evidence, a self-attestation constitutes an unauthenticated unilateral declaration; its value before a contesting third party depends on the independence of the process that verified it and on its corroboration by elements external to its author, not on the assertion it contains alone, irrespective of that author's good faith.

1 - 4 Opposable Proof

Opposable proof is a record whose antecedence, integrity and independence are established by a mechanism external to the party invoking it, verifiable as to these three properties by any third party in possession of the representation and the necessary elements, without depending on the cooperation of the party invoking it. Within the meaning of SOURCE 0, this qualification designates a functional category, not a universal legal conclusion as to its effective opposability. The effective opposability of such a record before a given person, in a given proceeding, remains governed by the law applicable to that proceeding; the technical independence established by SOURCE 0 constitutes a favourable condition, not a guarantee.

1 - 5 The Legal Presumption and the Legal Probative Force

The legal presumption and the legal probative force are two distinct legal effects, each attached by a given text to an instrument or an act satisfying the conditions it lays down. Article 41(2) of the eIDAS Regulation attaches a presumption of accuracy of the date, the time and the integrity of the data linked to a qualified electronic timestamp. Book 8 of the Belgian new Civil Code attaches a particular probative force to the authentic instrument, within the limits of what the public or ministerial officer has personally performed or observed; it separately governs, at Article 8.22, the date certaine of the private instrument. Neither effect is acquired by declaration, and neither automatically extends to the substantive truth of the content documented.

2 - THE STRUCTURAL AXIOMS

2 - 1 The Dissociation Condition

Let S be the operating system — the infrastructure, human or algorithmic, whose conduct may be called into question — and C the capture layer responsible for fixing the proof of that conduct. The condition S ∩ C = ∅ is satisfied when S holds no unilateral capacity, direct or by delegation, to modify, delete, delay, or render unverifiable the content or the dating of what C seals. This condition is a qualification condition proper to the SOURCE 0 doctrine, not a universal physical property of systems: it is either satisfied or it is not, assessed against the relevant capacities for influence identified for each architecture examined.

2 - 2 The T-0 Instant

T-0 designates the precise instant at which a state — a human decision, a technical configuration, raw data — is captured and fixed by C, prior to the event that state is intended to document. There is no retroactive T-0: a state not fixed before the event it is meant to document cannot, by any subsequent procedure, acquire that antecedence. A capture performed after an event establishes only the state observed at the moment of that capture; it cannot, by itself, establish the state that preceded that event.

2 - 3 The Historical Reality Dossier

The Historical Reality Dossier is constituted when the dissociation and antecedence conditions defined by the two preceding axioms are implemented through a documented protocol comprising the canonicalisation of the representation, a documented cryptographic fingerprint function, a qualified electronic timestamp compliant with Article 42 of the eIDAS Regulation and the applicable implementing requirements, and a deposit or constat performed by a huissier de justice belge. The level of assurance sought determines the implementation parameters of each of these components; it exempts none of them. The term "historical reality" designates here the historically fixed existence of the sealed representation, not the substantive truth of what it asserts. The constat drawn up by the huissier de justice belge is conclusive, until a challenge for forgery, only as to the operations he has personally performed or observed and the results he has materially recorded from them — the delivery of the deposited file, the result of the verification of concordance between that file and its cryptographic fingerprint, the instant of deposit — within the limits of the probative force the law attaches to those operations. The Historical Reality Dossier establishes the existence and the integrity of the representation submitted to the capture layer at the moment of sealing. It does not establish that this representation was exhaustive, nor that it was not subject to a selection or an alteration prior to its submission to the capture layer.

3 - THE CONSTITUTIVE EPISTEMOLOGICAL LIMIT

A Historical Reality Dossier establishes the existence and the integrity of a given state at the instant it was sealed. It establishes nothing more. It certifies neither the substantive truth of the content sealed, nor the exhaustiveness of the selection that produced it, nor the soundness of the decision it documents, nor the compliance of the system's conduct after T-0. The law may require, depending on the applicable regime, proof of diligence, of a result, of a notification, or of substantive compliance; SOURCE 0 does not substitute for any of these standards, it supplies the prior and independent element on which their demonstration may, where relevant, rely. No formulation of the SOURCE 0 doctrine, in any sectoral application whatsoever, may claim a procedural effect — reversal of the burden of proof, presumption of innocence, immunity — beyond what the applicable law expressly attaches to the instrument produced. This limit is not a prudential reservation; it is the condition without which the doctrine ceases to be an evidentiary architecture and becomes an allegation.

4 - RELATIONSHIP TO THE CANONICAL DOCTRINE

This page fixes the categories and the definitions. The Canonical Doctrine applies these categories without modifying them. The sectoral pages and the articles of the series set out particular instances of them. None of these three levels redefines what the one preceding it fixes.

5 - DOCTRINAL STATUS AND TRACEABILITY

Consolidation status: canonical. Author: Jean-François ELSEN. This page constitutes the ontological foundation from which the Canonical Doctrine and all sectoral applications of SOURCE 0 derive; any local reformulation of the categories or axioms it fixes is, by construction, non-compliant with the doctrine.

REGULATORY NOTICE

This notice is drafted for doctrinal and documentary purposes. SOURCE 0 is a proprietary pre-execution cryptographic attestation architecture, developed by Jean-François ELSEN, and a registered word mark (BOIP/OBPI No. 1548293, Benelux). The SOURCE 0 CERTIFIED attestation is issued by Jean-François ELSEN, in his capacity as author of the SOURCE 0 architecture, certifying that the SOURCE 0 process has been followed; it does not constitute an independent third-party certification. This notice does not constitute legal advice.