Note that in 2024 this methodology changed. The new format, currently very poorly documented, is as follows:

https://github.com/{org}/{repo}/graphs/contributors?from=1%2F1%2F2024&to=7%2F31%2F2024

Example:

https://github.com/apache/pinot/graphs/contributors?from=1%2F1%2F2024&to=7%2F31%2F2024