I propose replacing the diverse, hard-to-maintain copyright headers in Bitcoin source files with a uniform, concise SPDX identifier to ensure clarity and consistency, thereby streamlining licensing while reducing noise and focusing on modern, efficient license declaration.

This aligns with practices in projects like the Linux Kernel the Linux Kernel, reducing noise, inconsistency, enhancing clarity and reducing inconsistency.

A similar change was already opined by the Bitcoin Legal Defense Fund, emphasizing that version control already preserves historical data and legal integrity.

For further details on related discussions and proposals, see:

• doc: Bump copyright years to present (headers only) #26817 (comment)
• doc: Bump copyright years to present (headers only) #26817 (comment)
• scripted-diff: update license URLs to https #22975 (comment)

Diffs:

or