After gameplay I retimed this run using https://somewes.com/frame-count/ with a console FPS of 60.098813897441 which is the NES native framerate according to http://tasvideos.org/PlatformFramerates.html and raw video framerate of 60 FPS for a total of 81413 frames or a Console Time of 22:36.883. First Frame set on the frame "400" appears in the top right corner after selecting 1 player and End Frame set on the frame all sprites are invisible after touching the axe in 8-4. I hyped and paused the game after the final axe, however I hit the axe before pausing so I guess it's all good.
I use Nintendo Entertainment System Model No. NES-001 with "Super Mario Bros. / Duck Hunt" cartridge Model NES-MH-CAN and GV-USB2 Capture Card. Console check at the end of the run.
Twitch Highlight:

Effective immediately, any submissions using the SNES9x emulator will not be verified. The SMB1 mod team has concerns about its integrity due to its ability to overclock and remove lag frames, which may not be easily detectable. Additionally, we request that all BizHawk submissions avoid using the S