insights · evidence in practice
Working analysis on provenance, dataset assurance, portable verification, and what cryptographic evidence can and cannot establish about a data product.
August 8, 2026Dataset integrity5 min
The Coldcard attack kept running after disclosure. Why a 2-of-3 multisig across different vendors is the most accessible way to remove the single point of trust, and what that pattern teaches evidence systems.
August 4, 2026Dataset integrity6 min
An entropy flaw sat in open-source wallet firmware for five years before an attacker exploited it. What the Coldcard incident says about the gap between reviewable and verified.
July 21, 2026Data provenance1 min
Data lineage shows how data moves and changes. Data provenance adds source history, responsibility, and evidence for evaluating trust.
July 20, 2026Data provenance2 min
Blockchain oracles aggregate offchain data for smart contracts. Verifiable data provenance can add traceable lineage from source to onchain result.
Prefer to see the evidence workflow instead of reading about it?