Time window (PT): Sep 7, 2025, 12:00 AM PT – Dec 31, 2025, 11:59 PM PT.

YES if: During the window, Adam Back (personally, via a verifiable channel) clearly recommends Bitcoin Knots over Bitcoin Core—e.g., states “use/run/prefer Knots (over Core)” or equivalent.

Accepted channels: His verified X/Twitter (@adam3us), personal blog/site, signed public post, recorded talk/interview/podcast with attributable transcript, or published op-ed under his name.

NO if: Only neutral mentions, historical quotes from before 2025, third-party paraphrases without a primary source, ambiguous praise of Knots without comparison to Core, or generic “run your own node” advice. Retweets without explicit endorsement don’t count.

Primary sources of truth (in order):

1. The original post/transcript/video from Adam Back.

2. Credible press citing and linking the primary source.

Ties/edits: If a qualifying post is later edited/deleted, archived versions (e.g., screenshots/web archives) captured during the window still count. If multiple statements conflict, the clearest, most direct statement in 2025 governs.