No description, website, or topics provided.
Branch: master
Clone or download
Pull request Compare This branch is 57 commits behind opentimestamps:master.
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.


Python3 library for working with the OpenTimestamps protocol.


  • Python3 3.4.2
  • python-bitcoinlib v0.7.0
  • GitPython 2.0.8 (optional: required only by opentimestamps.core.git)

Note that the version numbers represent what this library has been tested with; newer versions will probably work as well.


This library is still in heavy development, and doesn't have an official version number yet; the OpenTimestamps client and server both use it as a Git subtree, and it's suggested that you do the same if you want to use it in your own projects for the time being.


Similar to the author's python-bitcoinlib, the codebase is split between the consensus-critical opentimestamps.core.* modules, and the non-consensus-critical opentimestamps.* modules. The distinction between the two is whether or not changes to that code are likely to lead to permanent incompatibilities between versions that could lead to timestamp validation returning inconsistent results between versions.

Example Code

None yet; take a look at the unit tests under opentimestamps/tests, as well as the OpenTimestamps Client and OpenTimestamps Server repositories:

Unit tests

python3 -m unittest discover -v

Also, Travis support has been added.