THE OLD WORLD IS DEAD. CERTAINTY LIVES HERE.

No more broken promises. No more guessing. PromissoryLock makes every deal official. From Grandma’s loan to freelance gigs—every promise deserves protection.

PromissoryLock demo

In today’s world, what’s real…and what’s fake?

Fakes & Friction

  • Deepfakes & fake images
  • Broken promises
  • Ghosted freelancers
  • Altered “proof” that never holds up

Lock Promises. Lock Reality. Verify Forever.

Sign it. Snap it. Lock it to the chain. Your record becomes a verifiable proof trail that anyone can check—anytime.

Compliance & Jurisdictions

United States(ESIGN & UETA‑compliant)
European Union(eIDAS framework)
Other / Global(Blockchain proof‑of‑existence)

How it works

1) Sign it

Use any contract or a simple promise note.

2) Snap it

Capture a photo or upload the file.

3) Lock it

We hash the evidence and anchor a proof to chain.

4) Verify forever

Anyone can verify authenticity with the code or link.

Integrations (coming soon)

Hooks for Zapier, web3 wallets, and media authentication APIs will plug in here. Use the buttons up top to trigger your flows. Replace the data‑attributes below with your endpoints when ready.

Examples: