Augur: Block’s Open Source Bitcoin Fee Estimation Library

The discussion involves the technical aspects of Bitcoin Core versions used in conjunction with the curl https://blockstream.info/api/fee-estimates command. A specific GitHub file is referenced to support an educated guess that version 27.2 of Bitcoin Core might be the one utilized for returning results from this API call. The reference included is a direct link to a segment of code within the Blockstream repository on GitHub, indicating the version in question (GitHub link).

Additionally, there is mention of the development progress of a benchmarking tool, labeled as version 1, which is nearing completion. A collaborator identified by the handle @zpv has been particularly engaged with this project over the week. Upon completion of this initial version, there's an open invitation to further refine the tool by incorporating more nuanced metrics, such as the average overestimation factor. This suggests an ongoing commitment to improving the accuracy and utility of the tool beyond its initial release.