Why Your Audit Log Needs a Hash Chain

<p>I've been learning Go, and instead of another CRUD tutorial project, I wanted to build something with a real property: <strong>provable tamper-evidence</strong>. Not "we have

<p>Logs can explain what a service thought happened.</p> <p>They do not prove what happened.</p> <p>Klevar Docs needed an audit trail for rendered documents, invoice events,

<p>I built this project for the <strong>#H0Hackathon</strong> (Hack the Zero Stack with Vercel and AWS Databases). This post covers how I built it using Amazon DynamoDB and

<p><em>Troy Anthony Cronin is the founder of GuardianChain, LLC and the architect of GC-1 — non-custodial cryptographic evidence infrastructure for AI accountability. 64,000+

<p>Most fintech teams build their audit trails in the application layer.</p> <p>An ORM plugin here. A middleware hook there. A background job that "eventually" writes to an audit

<p>You build the feature. You test it. It works.</p> <p>Three months later: data is missing, a transaction failed, a user denies doing something your system says they did.</p>