Developer template

Flomisma Verify — Self-Hosted

$249

Hash-chain attestation, self-hosted signing, optional RFC 3161 timestamp anchor.

Self-hosted attestation toolkit: hash-chain integrity, HMAC signing and verification with your own secret key, and an optional RFC 3161 third-party timestamp anchor for buyers who want independent, third-party-backed proof of when a hash existed — stronger than self-signing alone. Runs entirely on your own infrastructure. One-time purchase, no hosted service, no per-entity or per-attestation billing.

• ✓Hash-chain construction and integrity verification
• ✓Self-hosted HMAC signing and verification
• ✓Optional RFC 3161 timestamp anchor (works with any compliant TSA)
• ✓CLI for verifying a chain from a JSON file
• ✓npm package + CLI, TypeScript source

Live product demo on flomisma.com — explore the related feature page before you buy. No license required.

Secure checkout via Stripe. License key and referral link emailed within minutes.