Evidence management for security engagements: chain-of-custody records with SHA-256 integrity, the provenance-strict verification gate (a finding is only 'verified' when backed by real tool output, never prose), credential redaction for any outward-facing surface, CVSS-to-severity scoring, and authorized retest workflows with typed probe dispositions. Use when structuring findings/evidence storage for a pentest or bug-bounty engagement, deciding what evidence makes a claim reportable, redacting captured credentials from reports, or re-testing fixed vulnerabilities. Derived from the T3MP3ST platform's evidence vault (Apache-2.0).