✓ ZH-VERIFIED™ GROUND TRUTH • ZERO-LLM HERMETIC RUST VERIFIER • ED25519 + RFC 6962 MERKLE RECEIPTS
ZH-Verified™ Parquet Data Lakes for Institutional AI, Quant Alpha, Legal & KYB
Verified, not generated. Mount 536,425,315 deterministically source-checked records across 6 Data Suites and 48 ZSTD Apache Parquet tables (133.89 GiB)—each carrying an offline-replayable ZH Standard cryptographic receipt—delivered in 24 hours via Cloudflare R2 (Zero Egress), AWS Data Exchange, Snowflake Iceberg, or Databricks.
WHY INSTITUTIONAL TEAMS RELY ON ZH-VERIFIED™
Zero Neural Runtime Inside the Verification Boundary
Unlike probabilistic “LLM-as-a-Judge” scorers, Brightstead’s hermetic Rust engine enforces deterministic replay, fail-closed exception quarantine, cross-system entity reconciliation (BRID), and SHA-256 + RFC 6962 Merkle + Ed25519 receipts your auditor or regulator can replay offline.
PRODUCTION AUDIT SCALE
11.6M+ Runs
26.9M+ unsupported flags caught
ADVERSARIAL LEGAL ERRORS*
96.3% / 75.3%
+22.3 pp vs model-only on hard set
LLM-AGGREFACT (29.3K PAIRS)*
79.1 BAcc
#2 in 48-system comparison
PARQUET ESTATE INTEGRITY
330 / 330
Ed25519 + Merkle verified files
*Preliminary Oct 2026 internal development benchmarks (208/216 standard & 338/449 hard planted legal errors; held-out lawyer review pending) and self-reported, test-informed LLM-AggreFact macro balanced accuracy across 11 datasets. Full methodology at zhstandard.com & brightstead.com/spec.html.