THE V-SCORE PROTOCOL
Version 2.0 — ISAE 3000-Aligned Evidential Methodology for the Assessment of Human Artistic Practice as a Rated, Defensible Asset
The V-Score Protocol is the proprietary assessment methodology of Vocovallis B.V., designed to evaluate the integrity of a human artistic practice as a rated, commercially defensible asset. Version 1.0 established the conceptual architecture: four assessment vectors — Provenance, Depth, Singularity, and Vitality — weighted and aggregated into a Narrative Solvency Score.
Version 2.0 rebuilds the measurement layer of the protocol to satisfy the evidential requirements of ISAE 3000 (Revised). The four vectors are retained without modification. What has been redesigned is the mechanism by which each vector is assessed: from holistic professional judgment to a structured evidence schema in which every score derives from specific, documentable, independently verifiable data points.
The rationale for this redesign is commercial and institutional. The primary deployment context of the V-Score is corporate cultural engagement under the Corporate Sustainability Reporting Directive. CSRD reports are subject to external assurance under ISAE 3000. Any assertion derived from a V-Score assessment must therefore meet the evidential standard that ISAE 3000 requires. Version 1.0 did not meet this standard. Version 2.0 does.
| Version | Codification | Status | Material Change |
|---|---|---|---|
| 1.0 | VCB.METRIC.2026.v1 | Superseded | Initial publication. Conceptual framework established. Judgment-based scoring. |
| 2.0 | VCB.METRIC.2026.v2 | Current | ISAE 3000-aligned. Evidence schema introduced. Expert Panel Protocol formalised. Dissonance Deduction precisely defined. Weighting rationale documented. |
The V-Score Protocol evaluates a single class of subject matter: the human artistic practice of a named individual practitioner. A practice, for the purposes of this protocol, is the totality of a practitioner's documented creative output, institutional engagement, and methodological development over time. It is an ongoing, living process — not a single work, a series, or a body of work at a fixed moment.
The protocol produces a single output: the Narrative Solvency Score (NSS), expressed as a number between 0 and 100, from which a certification rating is derived. The NSS is the only basis for the issuance or refusal of a Human Practice Certificate.
The protocol assesses structural integrity: whether the practice is what it claims to be, evidenced to the standard required for independent assurance. It does not assess aesthetic quality or commercial market value.
ISAE 3000 (Revised), issued by the International Auditing and Assurance Standards Board (IAASB), governs assurance engagements on subject matter other than historical financial information. It is the applicable standard for non-financial reporting assurance under the CSRD. Three requirements of ISAE 3000 are directly operative on the V-Score methodology.
| ISAE 3000 Requirement | V-Score v2.0 Response |
|---|---|
| Suitable criteria. The criteria used to evaluate subject matter must be relevant, complete, reliable, neutral, and understandable, and must be established in advance of the engagement. | The four vectors and their evidence indicators are documented in this protocol prior to any engagement. They are applied identically to every practice assessed and do not vary by assessor, client, or context. |
| Sufficient appropriate evidence. The practitioner must gather sufficient appropriate evidence to support the conclusion expressed in the assurance report. | Each indicator specifies the exact documentary evidence required. No indicator is scored without a corresponding retained document. The evidence log is maintained as a permanent engagement record. |
| Documented engagement process. The practitioner must document the nature, timing, and extent of procedures performed, and the evidence obtained. | Section IX defines the six-phase engagement process with documentation requirements at each phase. All engagement documentation is retained for a minimum of seven years. |
The V-Score is designed as a limited assurance engagement under ISAE 3000. It provides limited assurance that the practice, based on procedures performed and evidence examined, meets the stated criteria. This distinction is disclosed in every Vocovallis certification output.
ISAE 3000 requires that the criteria used in an assurance engagement have a documented rationale. The following sets out the basis for each vector's weight in the composite score.
| Vector | Weight | Rationale |
|---|---|---|
| Provenance | 30% | Provenance is the foundational requirement. Without verifiable authorship, no other vector is assessable. A failure of Provenance invalidates the entire certification regardless of other scores. It corresponds directly to ISAE 3000's requirement for the subject matter to be identifiable. |
| Depth | 25% | Depth differentiates a practice from a moment. It is the primary commercial differentiator: the property that makes a practice a compounding asset rather than a single data point. It receives equal weight to Singularity because trajectory and distinctiveness are co-equal determinants of long-term asset value. |
| Singularity | 25% | Singularity is the commercially critical property — the fingerprint that makes the practice irreplaceable and non-substitutable. It receives equal weight to Depth. Because it requires expert panel assessment, its methodology is more elaborate; the weight reflects its importance, not its tractability. |
| Vitality | 20% | Vitality is necessary but receives the lowest weight because it is the most time-sensitive vector. A practice that is temporarily less active does not lose its Provenance, Depth, or Singularity. The lower weight prevents a short-term production gap from excessively depressing the score of an established practice. |
Each vector is assessed through a defined set of evidence indicators. Each indicator is classified as Binary (present = full points / absent = zero) or Quantitative (points awarded on a defined scale). No indicator may be scored without a corresponding retained piece of documentary evidence.
Raw vector score = (points earned / maximum possible points) × 100, producing a normalised score between 0 and 100 for each vector.
Provenance audits the biographical integrity of the practice. The assessor verifies that the practice has a specific, named, documented human author with a traceable record of investment in a creative discipline.
Maximum Provenance raw score: 100 points.
Depth audits the compounding quality of the practice over time. The assessor verifies a developmental arc — not a single aesthetic moment but an evidenced trajectory across multiple periods.
Maximum Depth raw score: 100 points.
Singularity audits the irreducibility of the artistic voice. This vector requires structured expert panel assessment, because irreducibility is a relational property — it can only be established by comparing the practice against a defined set of market comparators through qualified expert judgment, constrained to a documented, replicable procedure.
| Protocol Element | Specification |
|---|---|
| Panel composition | Minimum 2 independent expert assessors per engagement. Assessors must hold documented professional credentials in art history, curatorial practice, art criticism, or cultural economics. No current or recent (3-year) financial or professional relationship with the practitioner being assessed. |
| Assessment instrument | Each assessor completes the Vocovallis Singularity Assessment Form (SAF-01), which requires: (a) identification of the three closest market comparator practices; (b) written specification of at least three distinguishing characteristics differentiating the subject practice from each comparator; (c) a binary determination of whether a representative body of the work would be identifiable as the subject practitioner's without attribution. |
| Inter-rater reliability | If the two assessors' SAF-01 scores diverge by more than 15 points on the normalised Singularity scale, a third assessor is engaged. The final Singularity score is the mean of all assessor scores, with the outlier score discarded if a third assessor was engaged. |
| Documentation retention | All completed SAF-01 forms, assessor credential records, and divergence calculations are retained as part of the engagement evidence file and available for review by the assurance auditor on request. |
| Score | Definition | Required SAF-01 Findings |
|---|---|---|
| 85–100 | Sovereign Singularity | Both assessors confirm identifiability without attribution. Minimum 3 specific distinguishing characteristics per comparator documented. |
| 65–84 | Established Singularity | At least 1 assessor confirms identifiability without attribution. Minimum 2 distinguishing characteristics per comparator documented. |
| 45–64 | Emerging Singularity | Neither assessor confirms full identifiability without attribution, but both document meaningful distinguishing characteristics. |
| 0–44 | Singularity Deficit | Neither assessor can document meaningful distinguishing characteristics from at least 2 of the 3 identified comparators. |
Maximum Singularity raw score: 100 points.
Vitality audits the active development and ongoing relevance of the practice. The reference period is the 36 months preceding the assessment date. Evidence outside this period is not counted for Vitality, though it may be counted under Depth.
Maximum Vitality raw score: 100 points.
The Narrative Solvency Score (NSS) is the single numerical output of the assessment. Each vector raw score is first normalised to a 0–100 scale, then weighted and aggregated, then adjusted by the Dissonance Deduction.
Version 2.0 replaces the division-based Dissonance Penalty of v1.0 with a subtraction-based Dissonance Deduction. This eliminates the mathematical instability of a divisor that could approach zero and produces a fully auditable output. The minimum NSS after all deductions is 0.
The Dissonance Deduction reduces the NSS by a defined number of points for each confirmed dissonance condition. A condition is confirmed only when documentary evidence supporting it is retained in the engagement file. Unconfirmed allegations do not trigger the deduction. Multiple deductions are additive.
| Code | Condition | Deduction | Evidence Required |
|---|---|---|---|
| DC-01 | Undisclosed collaborative authorship — evidence that works attributed to the sole practitioner were materially authored by undisclosed collaborators. | −25 pts | Signed collaboration agreements, sworn statements, or court findings establishing third-party authorship contribution. |
| DC-02 | Documented misrepresentation of biographical or credential facts — evidence that submitted information is materially false. | −20 pts | Official records contradicting submitted documentation, confirmed in writing by a named institution or official body. |
| DC-03 | Practice gap — documented absence of any practice activity for a continuous period exceeding 36 months, without documented reason. | −15 pts | Absence of any dated evidence of practice activity across the 36-month gap period, after active verification effort. |
| DC-04 | Active authorship dispute — a current legal proceeding or documented institutional dispute regarding the authorship of central works. | −15 pts | Court filing, institutional correspondence, or published record of the active dispute, dated within 24 months of assessment. |
| DC-05 | Withdrawn institutional recognition — a named institution has formally withdrawn an acquisition, representation, or attribution of the practitioner's work. | −10 pts | Written confirmation from the institution of the withdrawal, with stated reason. |
CCC and DDD ratings are confidential to the practitioner. Vocovallis does not publish or disclose below-threshold assessment outcomes without the practitioner's written consent.
Every V-Score engagement follows a documented six-phase process. Deviation from this process invalidates the certification.
The practitioner submits a structured Evidence Package prior to Phase 3 verification. The package must be organised according to the indicator codes in Section V. Each item of evidence must be clearly labelled with the indicator code it supports.
| Category | Required Items |
|---|---|
| Identity documentation | Government-issued identity document. Proof of professional name consistency if professional name differs from legal name. |
| Education records | Diploma or degree certificate for P-01. Official transcript or institutional confirmation where original document is unavailable. |
| Exhibition and institutional records | Exhibition catalogues, invitations, press releases, or institutional confirmation letters for P-02, D-03, V-02. Each document must show: institution name, exhibition title, date, and practitioner name. |
| Critical and editorial records | Published texts for P-03, V-03. Must show: publication name, author name, title, date. URLs and archived web pages are acceptable with date stamp. |
| Collection and acquisition records | Acquisition confirmation for P-04. Written confirmation from collecting institution on institutional letterhead, or published collection listing. |
| Legal authorship records | Copyright registrations or i-DEPOT records for P-05. Must show practitioner name as rights holder and works covered. |
| Representation records | Representation agreement or gallery listing for P-06, V-04. Current within 12 months for the Vitality indicator. |
| Work documentation | Dated portfolio documentation for D-05, V-01. Each work: title, date, medium, dimensions. Minimum photograph quality: 1000px on longest edge. |
| Practice development records | Artist statements, exhibition texts, interview records for D-02. Must be dated and attributable to the practitioner or a named third party. |
| Research and residency records | Residency confirmation letter or institutional record for D-04. Must show: institution name, practitioner name, dates. |
A Human Practice Certificate is valid for 12 months from the date of issuance. Renewal requires a Vitality Re-Assessment — a focused assessment of Vector 4 indicators only, using evidence from the preceding 12 months.
Renewal does not require a full four-vector assessment unless Vocovallis identifies a material change in the practice that warrants re-evaluation of other vectors. The renewal NSS is calculated by substituting the new Vitality score into the previous full-assessment formula. The certification rating is updated accordingly.
If a renewal assessment results in a score below the BBB threshold, the certificate is placed under review for 60 days. The practitioner may submit additional Vitality evidence within the review period before a final determination is made.
All V-Score assessments are conducted by or under the direct supervision of a Vocovallis Qualified Assessor (VQA). Expert panel members for Singularity assessment must meet independent qualification criteria.
| Role | Minimum Qualifications | Independence Requirements |
|---|---|---|
| Vocovallis Qualified Assessor (VQA) | Minimum 5 years documented professional experience in curatorial practice, art history, cultural policy, or arts administration. Completion of Vocovallis internal V-Score assessor training programme. | No financial interest in the outcome of the assessment. No personal relationship with the practitioner that would impair objectivity. |
| Singularity Expert Panel Member | Documented professional credentials in art history, curatorial practice, art criticism, or cultural economics. Minimum 3 years post-qualification experience. Publication record or institutional affiliation verifiable. | No current or recent (3-year) financial or professional relationship with the practitioner. Declaration of independence required before each engagement. |
| Document | Retention Period | Confidentiality Status |
|---|---|---|
| Complete engagement evidence file | 7 years from certification date | Confidential. Available to external assurance auditor on request. |
| Score Calculation Sheet (SCS-01) | 7 years | Confidential to practitioner and Vocovallis. |
| Expert Panel SAF-01 forms | 7 years | Confidential. Assessor identities protected. |
| Human Practice Certificate | Permanent | Public record (AAA/BBB only). |
| Developmental Assessment Record | 7 years | Confidential to practitioner. |
| Practice Registry entry | Duration of certification + 3 years | Public record. |
| Renewal assessment records | 7 years from renewal date | Confidential. |
Vocovallis retains all engagement documentation in a secure, access-controlled system. Practitioner data is processed in accordance with Regulation (EU) 2016/679 (GDPR). Practitioners may request access to their own engagement file at any time.
The V-Score Protocol version 2.0, including all indicator definitions, scoring formulae, assessment instruments, engagement protocols, and rating designations contained in this document, is the exclusive intellectual property of Vocovallis B.V.
| Instrument | Scope |
|---|---|
| Dutch Copyright Act (Auteurswet) | This document as an original literary and technical work. All textual and structural content. |
| Dutch Trade Secrets Protection Act | The scoring algorithm, indicator weighting structure, Dissonance Deduction conditions and values, Expert Panel Protocol, and SAF-01 instrument as confidential commercial methodology. |
| BOIP i-DEPOT | Dated proof of existence for the V-Score Protocol v2.0 concept, criteria, algorithm, and engagement protocol as deposited with the Benelux Office for Intellectual Property. |
| BOIP Trademark | The V-Score™ name and mark, registered under Ahekian Holding B.V. |
This document constitutes the complete and binding Version 2.0 of the V-Score Protocol as developed and operated by Vocovallis B.V., Amsterdam. It supersedes all prior versions. Unauthorised reproduction, distribution, or adaptation of any part of this document is prohibited.
© 2026 VOCOVALLIS B.V. — AMSTERDAM, NETHERLANDS — ALL RIGHTS RESERVED