# GMRI Methodology v1.0 — cryptographic commitment
#
# This file is a permanent timestamped commitment to the exact contents of the
# GMRI Methodology v1.0 document. The hash below is computed via SHA-256 on the
# canonical document file `GMRI_Methodology_v1.0.md`.
#
# Purpose: prior-art protection. By publishing this hash on the TrueSource Metals
# Hub website on 15 June 2026 (UTC) we commit to a specific methodology content
# without revealing the full document. When the document is later published in
# full, its SHA-256 must match the value below — otherwise the document has been
# modified after the commitment date.
#
# How to verify (when the full document is later released):
#   sha256sum GMRI_Methodology_v1.0.md
#
# The output must equal the SHA-256 value below.

algorithm:    SHA-256
file:         GMRI_Methodology_v1.0.md
size_bytes:   14056
lines:        174
sha256:       0241951000a0d97bbf292aa19b3d534680526f0e17bf3e549c1bda2377308eee
sha512:       4b7cca4ab22974220ff9b05bdd9b609efa87dbf3b0ea9f35a20f6f1873dd48b0020a15f46d53636c1521572ee24f974cf0cec131757c7859b48d082555f4d37f
committed_at: 2026-06-15T17:30:00Z
committed_by: TrueSource Metals (TSM-Hub-AK)
commit_url:   https://www.truesourcemetals.com/data/gmri/methodology-v1.0.sha256.txt

# Document scope (what the hashed file contains, public summary):
#   - Section 1: GMRI Identity (name, base date, base value, governance)
#   - Section 2: Index Family (6 live members + 10 methodology slots)
#   - Section 3: Eligible Universe (constituent inclusion rules)
#   - Section 4: Weighting Schemes (cap-weight, EW, issuer-cap CAP20)
#   - Section 5: Index Formula
#   - Section 6: Rebalancing & Reconstitution
#   - Section 7: Data Sources & Verification
#   - Section 8: Honesty Rules (slot threshold N>=3, no invented numbers)
#   - Section 9: Versioning Policy
#
# Prior-art assertion:
#   On 15 June 2026 TrueSource Metals registers the following GMRI sub-index
#   codes and definitions, as fixed within the hashed document:
#     GMRI, GMRI-EW, GMRI-CAP20, GMRI-AU, GMRI-PRE, GMRI-NONAU       (6 live)
#     GMRI-BASE, GMRI-BTR, GMRI-FE, GMRI-CRT, GMRI-FA, GMRI-LT,
#     GMRI-MN, GMRI-REF, GMRI-STL, GMRI-JUR                            (10 slots)
#
# Independent witnesses for this commitment:
#   - git history: TSM-Hub-AK/tsm-website (commit immediately following file creation)
#   - Cloudflare Pages deployment log
#   - Wayback Machine snapshot (submitted same day; URL recorded separately)
#
# Future steps (post-commitment):
#   - OpenTimestamps proof (Bitcoin blockchain anchor) when v1.0 PDF is published
#   - Public HTML rendering at /gmri/methodology/
#   - Trademark applications (CH Swissreg, EUIPO, WIPO Madrid) for "GMRI",
#     "Global Metals RWA Index", and sub-index codes