{"conversationCode":"645-001","tapeNumber":645,"conversationNumber":1,"identifier":"37-wht-conversation-645-001","startDateTime":"1972-01-11T16:10:00.000Z","endDateTime":"1972-01-11T16:33:00.000Z","startDate":"11-Jan-1972","startTime":"11:10 AM","endDate":"11-Jan-1972","endTime":"11:33 AM","dateCertainty":"certain","timeCertainty":"estimated","participants":"Nixon, Richard M. (President); Butterfield, Alexander P.;","description":"On January 11, 1972, President Richard M. Nixon and Alexander P. Butterfield met in the Oval Office of the White House at an unknown time between 11:10 am and 11:33 am. The Oval Office taping system captured this recording, which is known as Conversation 645-001 of the White House Tapes.","locationCode":"OVAL","recordingDevice":"Oval Office","latitudeEstimated":38.8974,"longitudeEstimated":-77.0374,"chronCode":3,"chronRelease":"Third Chronological Release","chronReleaseDate":"28-Feb-2002","aogpRelease":null,"aogpSegment":null,"lastModified":"2015-07-27T17:04:10.235Z","findingAid":"Conversation No. 645-1\n\nDate: January 11, 1972\nTime: Unknown between 11:10 am and 11:33 am\nLocation: Oval Office\n\nThe President met with Alexander P. Butterfield.\n\n     Items for the President's signature\n\n     H. R. (“Bob”) Haldeman\n          -Location\n               -John N. Mitchell\n               -Butterfield’s view\n\nButterfield left at an unknown time before 11:33 am.","filename":["645-001-splice.mp3"],"tapeStart":"00:41:48","tapeEnd":"00:43:38","participantsList":["Nixon, Richard M. (President)","Butterfield, Alexander P."],"prevCode":"644-018","nextCode":"645-002","tapeTranscriptFile":"645a.mp3","transcriptBoundary":{"start":2508,"end":2618,"startMethod":"llm-alignment","endMethod":"llm-alignment"},"transcriptSource":"bigtape","aiSummary":{"text":"President Nixon met with Alexander P. Butterfield to review administrative materials requiring presidential signature and to discuss the current whereabouts and activities of H.R. Haldeman. The two also addressed the status of John N. Mitchell, with Butterfield providing his personal perspective on the matter. The meeting concluded with Butterfield departing the Oval Office after finalizing these routine staff and scheduling updates.","topics":["H.R. Haldeman","John N. Mitchell","White House Administration","Presidential Scheduling","Staff Operations"],"generatedAt":"2026-04-07T01:47:33.750Z"},"topicSlugs":["h-r-haldeman","john-n-mitchell","white-house-administration","presidential-scheduling","staff-operations"],"audioDurationSec":113,"audioFiles":[{"file":"645-001-splice.mp3","bytes":2712808,"durationSec":113.01,"bitrate":192047,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-10-27T04:38:04.027Z","originalFilename":["645a.mp3"],"spliceSource":{"spliceType":"bigtape","sourceFiles":["645a.mp3"],"cutStart":2506.5,"cutEnd":2619.5,"adjustedStart":2506.5,"adjustedEnd":2619.5,"boundaryMethod":"llm-alignment","confidence":"high","splicedAt":"2026-10-27T04:38:04.027Z"},"transcript":[{"start":2520.06,"end":2521.68,"text":"All right."},{"start":2590.7,"end":2593.34,"text":"Come on."}],"transcriptConfidence":"high","audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/645-001-splice.mp3"],"url":"https://www.easynixon.org/tapes/645-001","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/645/conversation-645-001","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}