Authentication Documentation
Authentication documentation records more than a verdict. It preserves the exact claim being tested, the evidence examined, the methods used, the reasoning applied, the limits of the assessment and the confidence attached to the conclusion. Without that chain, even a careful opinion can later collapse into an unsupported label.
A useful record also keeps separate questions separate. Authenticity concerns what is genuine; attribution concerns who, where or when an object should be assigned; provenance may support a claim without proving it; and confidence describes how strongly the available evidence supports the present conclusion. Documentation gives each of those judgements a traceable place.
Explore authentication documentation
Go directly to a specific evidential question, or continue below for the framework that turns an authentication opinion into a reviewable record.
7 detailed topics
Define the claim
Record exactly what is being asserted and keep authenticity, attribution and evidential burden separate before drawing a conclusion.
Build the evidence record
Preserve the observations, sources, comparisons, methods and provenance links that make the conclusion reviewable.
State confidence and revision
Express how strongly the record supports the claim, preserve uncertainty and identify what future evidence could change the conclusion.
Worked example
The certificate that cannot carry the whole claim
A signed photograph is accompanied by a certificate stating that the signature is authentic. The certificate identifies the dealer, but not the examiner, examination date, comparison set, methodology or this photograph by a unique reference. The object itself has no documented chain connecting it to the certificate.
The certificate remains part of the record, but its existence is not the same as proof. A defensible file records what the certificate says, who issued it, how securely it links to the photograph, what independent examination found, what comparable evidence was used and which questions remain unresolved.
Example conclusion: “Signature considered probably authentic on present comparative evidence; accompanying certificate retained as supporting but non-conclusive evidence; object-specific linkage and examiner methodology not established.”
The central framework
A record must preserve claim, evidence and judgement separately
Authentication records become unreliable when the conclusion is preserved but the route to it is lost. These four elements should remain visible in every meaningful assessment.
The proposition
The evidence
The method
The conclusion and confidence
A defensible sequence
From claim to reviewable conclusion
1. Define the precise claim
Identify the object, component, mark, association, date, maker, issue or event being tested. Separate multiple claims rather than allowing one favourable finding to support all of them.
2. Record the present state before interpretation
Capture identifying features, dimensions, marks, condition, components, packaging and accessible construction. Preserve original images and contemporaneous notes.
3. Identify the burden and decision context
State what level of support is proportionate for purchase, cataloguing, insurance, sale, publication or a high-value attribution. The evidential threshold can change with the consequence of error.
4. Gather and qualify each source
Record who created each document or opinion, when, for what purpose, whether it is independent and whether it identifies this particular object rather than merely a type or story.
5. Document the methodology
Explain how references were selected, what was compared, which tests were performed, who examined the object and what could not be inspected.
6. Separate supporting, contradictory and neutral evidence
Do not hide anomalies or force every finding into one direction. A robust record shows where evidence conflicts, where it is silent and which findings deserve the greatest weight.
7. State conclusion, confidence and revision triggers
Use wording proportionate to the evidence, record unresolved alternatives and identify what future source, examination or test could strengthen or overturn the assessment.
Important boundaries
Documents can preserve evidence without proving the claim
A certificate is evidence about an opinion, not automatic proof of authenticity. Its weight depends on issuer, examiner, methodology, date, scope, object-specific linkage and whether the conclusion can be independently checked.
Provenance can support identity without proving manufacture or authorship. A strong ownership chain may establish existence, custody or association while leaving the underlying object claim unresolved.
Attribution is not a single all-or-nothing label. Maker, designer, issuer, factory, workshop, date and association may each require separate wording and confidence.
Confidence should not harden as the record travels. A cautious conclusion must remain cautious in catalogue entries, insurance records, sale descriptions and inherited collection notes unless new evidence justifies stronger wording.
Record design
What a future reviewer needs to see
The record should allow another collector, specialist, insurer, executor or future owner to understand not only the present conclusion, but how it was reached and where its limits sit.
Object identity
Catalogue title, maker, issue, variant, serial or identifying features sufficient to connect every document and image to the same object.
Claim wording
The exact proposition tested, including any narrower component, mark, association or attribution claims.
Evidence inventory
Photographs, measurements, sources, provenance records, correspondence, certificates, reference examples, expert reports and test data.
Source qualification
Creator, date, purpose, independence, object-specific linkage, reliability and any known conflicts or limitations.
Reasoning record
Why particular evidence was weighted strongly or weakly, how contradictions were handled and which alternatives were considered.
Conclusion language
What is supported, how strongly, what remains uncertain and whether the conclusion applies to the whole object or only one claim.
Review history
Who revised the record, when, why, what new evidence was added and whether previous wording was retained for auditability.
Preservation and access
Stable filenames, dated originals, readable scans, linked physical documents and storage arrangements that keep the evidence with the object record.
Detailed authentication documentation topics
Each guide develops one part of the record in full, including evidential boundaries, practical documentation choices, confidence language and revision principles.
Authenticity
Define which layer of the object, mark, component, finish or association is claimed to be genuine.
Attribution
Record who or what the object is attributed to, the scope of that attribution and viable alternatives.
Burden of Proof
State what evidence is required, who must produce it and how persuasive it needs to be for the decision at hand.
Evidence-Led Authentication
Organise observable facts, source material and interpretation around a precise authentication proposition.
Authentication Methodologies
Document how comparison, examination, expert opinion and testing were selected, applied and limited.
Provenance as Evidence
Test whether ownership and source records are object-specific, independent and strong enough for the claim they support.
Probability & Confidence
Record evidential strength, assessment limits, uncertainty and the triggers that would justify review.
Related topics
Documentation
Build collection records that keep evidence, sources, dates, files and revision history organised and accessible.
Provenance
Develop ownership, custody and association records without allowing provenance claims to outrun their evidence.
Expert Authentication
Preserve specialist conclusions together with examiner identity, scope, methods, limitations and conflicts of interest.
Research Methodology
Use source evaluation, comparison and documented reasoning to support claims that can be checked and revised.