Methodology Version Register

The single source of truth for every publicly released BCI Lab methodology document — one place where every version number, and every “which document currently governs which fact” question, has one unambiguous answer.

This register is the single source of truth mapping every publicly released BCI Lab methodology document to its version number, status, effective date, and relationship to every other document in the corpus. No defined term, threshold, or formula element should be independently redefined, with a different value, in more than one place. Where a document needs to state a version history, a threshold, or a formula, it references this register rather than restating the history itself.

This register does not merge documents or change their editorial independence. The White Paper and BSIP continue to be written, reviewed, and published on their own schedules, for different readers. What this register fixes is a single place where every version number and every “which document currently governs which fact” question has one unambiguous answer.

Scope. This register covers externally published documents only: the White Paper, BSIP (and its predecessor names), the Independence & Conflict Policy, and the Public Protocol Annex — including the retired “Institutional Methodology Disclosure” name under which parts of this lineage were previously published. Internal working documents — Core Definitions and its amendments, the Sector-Specific Calibration Governance Protocol, the M&A Backtest Registry, and the Action-series working papers — are not in scope. They continue to version independently, under their own file-based numbering, for internal use.

Gaps are marked, not filled. Rows 1–3's exact release dates and the White Paper's v1.0/v2.0 dates (Row 8) are not reconstructed here. They should be filled in from BCI Lab's internal records before this register is treated as complete, rather than estimated for the sake of a tidy table — the same standard this project applies to every other unverifiable historical claim.

“BSIP” is the sole active name going forward. Effective with v4.0, “Institutional Methodology Disclosure” is retired as an active document title. Both of its archived versions (Rows 1 and 5) are preserved here for historical reference only and are not authoritative for current operations. Any page, report footer, or piece of metadata still citing “BSIP v3.0” or “Institutional Methodology Disclosure” should be updated to cite BSIP v4.0.

This register is updated at every future version change to either document. It is the authoritative cross-reference and should be consulted before restating version history in a report, footer, or page metadata, rather than each surface maintaining its own copy of that history.