Prove it existed. Prove it hasn't changed.

Upload any text, link, image, or screenshot. TruthChain timestamps it, hashes it, and can mint it as an NFT anchored on a real blockchain.

Create a Proof Try the Free Demo

Create a Proof

1. What are you proving?

Drop an image, PDF, or any document here, or click to choose a file

How It Works

1. Upload

Paste text, a link, or drop an image/PDF/screenshot. Nothing leaves your browser yet.

2. Hash & timestamp

Your browser computes a SHA-256 fingerprint and records the current time — this is your proof certificate.

3. Pick a tier and chain

Free anchors on a test network at no cost. Full Anchor lets you pick a real chain and mints an NFT there; you pay only network gas.

4. Verify anytime

Anyone can re-upload the same content later and check it against the chain — if the hash matches, the proof holds.

Verify a Proof

Re-check a text, link, or file against everything minted so far on the configured networks.

Drop a file here, or click to choose one

Pricing

Both tiers are always available. You choose per proof.

Free

$0

  • Cryptographic hash + timestamp
  • NFT minted on a test network
  • Downloadable proof certificate

Full Anchor

Network gas fee only

  • Everything in Free
  • NFT minted on live mainnet
  • Permanent, publicly verifiable anchor