Drop here a file to stamp
OR
an .ots proof file to verify
The hash is calculated on your browser preserving your privacy. More...
Timestamping proof download will start automatically after uploading document.
on a local network manages the activation of multiple computers. ronnydejong.com
: Using such tools violates Microsoft's Terms of Use and constitutes software piracy. In many jurisdictions, this can result in legal action or loss of technical support. Legitimate Activation Alternatives
Python
Javascript
Java
$ pip3 install opentimestamps-client
$ ots stamp my-file
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$ npm install -g javascript-opentimestamps
$ ots-cli.js stamp my-file
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$ git clone https://github.com/opentimestamps/java-opentimestamps
$ cd java-opentimestamps
$ mvn install
$ java -jar target/OtsCli.jar stamp my-file
More
on a local network manages the activation of multiple computers. ronnydejong.com
: Using such tools violates Microsoft's Terms of Use and constitutes software piracy. In many jurisdictions, this can result in legal action or loss of technical support. Legitimate Activation Alternatives
Client
Client tool to perform stamping of files through a calendar server and to verify OpenTimestamps proof
opentimestamps-clientServer
Calendar Server receiving timestamp request from clients on a local network manages the activation of
opentimestamps-serverPython
Common library
python-opentimestampsJavascript
Common library & Client tool
javascript-opentimestampsJava
Common library & Client tool on a local network manages the activation of
java-opentimestampsRust
Rust library
rust-opentimestamps