The flagship demonstration of what calibrated AI infrastructure produces when applied to financial measurement. 100 AI-curated constituents, operational band 97–105. Quarterly publication on the first Tuesday of February, May, August, November. Methodology hash stable since v1.0.0. Anti-issuer-pay firewall. Brier-tracked, error-published, externally audited.
The SHA-256 of the methodology has been unchanged since v1.0.0 ratification. The v2.1 release was an operational amendment (governance, publication cadence, band tightening) — not a methodology change. The hash is published with every quarterly cycle.
Each constituent scored across seven calibrated axes: capital efficiency, fiduciary alignment, prediction-track-record, methodology-transparency, governance, audit-independence, and durability-horizon. Weights are published. Per-axis sub-indices available to Trustee tier.
First Tuesday of February, May, August, November. Reconciliation, Brier ledger, hash, revenue disclosure, confluence matrix, steward attestation, sub-index roll, annual auditor letter (Q1 only). The ritual does not move.
The flagship publishes; the sub-indices specialize. Methodology hash inherits from NPX-100 with documented per-family deltas. All sub-indices follow the same quarterly ritual.
The 100-firm AI-builder subset. Brier-tracked across the substrate-build horizon.
Sector-decomposition of NPX-100 with axis-weighted reconciliation.
The fiduciary-virtue subset. 90 constituents passing strict governance gates.
The Trustee Tier subset — narrow, prestigious, fiduciary-vetted.
Every constituent change carries a stated reason. Every reweighting carries a Brier prediction. Every prior cycle's predictions get scored at this cycle's publication. The constituent list isn't an outcome of a black-box optimization — it's a verdict by named stewards who carry personal accountability.
"The case is closed in 18 karat."