References 390% CONFIDENCEOverall confidence: 90%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%youtube.com/watch?v=8d1ugv8vQ4wyoutube.com· Posted Sep 14, 2026· Starts Aug 15, 2024 ✓· 90% of score
Happened as dated, per the source: "completion of excavation work for the Long-Baseline Neutrino Facility".
- [2]92%Underground event marks excavation completion on colossal caverns for underground neutrino laboratory, DUNEnews.fnal.gov· Published Aug 15, 2024· 5% of score
Fermilab's own news release confirms "a ribbon-cutting event was held today... to mark the completion of excavation work" on 15 August 2024, matching the pin's stored date exactly.[1]
- [3]85%Event marks excavation completion on colossal caverns for underground neutrino laboratory, DUNEsanfordlab.org· Published Aug 15, 2024· 5% of score
The Sanford Underground Research Facility corroborates the same 15 August 2024 ribbon-cutting marking "the completion of excavation work on two seven-story caverns," matching the pin's stored date.[1]
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