Your proof outlives us.
Most "permanent" services last as long as their company does. TruthStamp is built differently — your proofs are anchored to systems we don't control, so they survive even if we don't. Here's exactly how.
MegaETH blockchain
Every stamp's fingerprint, timestamp, and creator ID is sealed on MegaETH. The blockchain runs across thousands of independent nodes globally. Even if every TruthStamp employee disappeared tomorrow, the proof keeps existing.
Arweave permanent storage
For public stamps, the actual content is stored on Arweave — a decentralized storage network with one-time fees that pay for centuries of replication. Unlike traditional cloud storage, there's no monthly bill that can lapse and erase your data.
Open-source verifier
Our verifier — the tool that checks any TruthStamp proof — is open source on GitHub and mirrored to IPFS. Anyone can run it locally. If our website goes down, the verifier still works on your laptop.
Your downloadable certificate
Every proof comes with a portable PDF certificate that includes everything needed to verify it independently — even decades from now, on any device, without TruthStamp or the internet.
If TruthStamp shuts down, here's what we promise:
- Your existing proofs remain verifiable on MegaETH forever — no action required
- We will publish all metadata and the verifier source code openly
- We will give 12 months of advance notice before any shutdown
- You can download a complete portable certificate for every stamp at any time
- The verifier and all proofs continue to work without our servers, our domain, or our team
Verify it yourself.
Don't trust us — verify directly on MegaETH. Here are the addresses you'd need to do that, today or 50 years from now.
Smart contract
0x4f8a9c2b...e7d3
Network
MegaETH mainnet
Verifier source
github.com/truthstamp/verifier
Verifier mirror
ipfs://Qm...verify
First 30 stamps free. No wallet required.