BLOG
Field notes from the chain.
Practical writing on cryptographic integrity, dynamic consent, and what it actually takes to make biological samples auditable.
ComplianceApril 2026 · 7 min read
Why audit logs aren't enough — and what cryptographic chains add
A look at the gap between traditional electronic records and hash-chained custody, and what regulators actually want to see.
ProductApril 2026 · 8 min read
Designing a dynamic consent engine for multi-site genomics studies
Versioned scopes, withdrawal cascades, and how to keep downstream analyses honest when participants change their minds.
EngineeringApril 2026 · 7 min read
Why a hash chain beats a database log for sample provenance
Append-only logs are easy. Tamper-evident logs are not. How SHA-256 chaining gives every custody event mathematical accountability.