Stamp content with permanent, verifiable provenance. Hash locally, verify free forever.
Mark anything to prove it came from you and when you made it. · Put your name and a trustworthy time on any exact file. Mark gives artists, founders, creators, and AI agents a signed record anyone can check. · Choose a file · Stamp a file. Then try to fool the check. · your-file.pdf · Every AI-era file raises two questions.
| Type | MCP server |
| Section | MCP servers |
| Pricing | free |
| Platform | Command line |
| Systems | cli, api |
| Hosting | cloud |
| Install | mcp |
| Protocols | mcp |
| Site language | en |
| GitHub | Tatastu-Labs/proof |
| Launched | 2026-07-08 |