IEEE International Conference on Blockchain and Cryptocurrency
2-6 May 2020 // Virtual Conference

Video Recording Instructions

The deadline for all video submissions is April 13, 2020!

Talks will be pre-recorded and submitted as video files before April 10, 2020 to be replayed during the conference. Instructions on how authors can submit their video files are found here. During the actual presentation on May 2-6 2020, authors will need to be available online after their videos are played to answer Q&A from conference participants moderated by the respective Session Chairs.


Please observe the following guidelines when preparing video files of your talks and posters:

  • Duration of video files:
    • Regular papers: 20 minutes
    • Short papers: 12 minutes
    • Poster or demo: 8 minutes
    • Tutorials: 45 + 45 minutes
      • Please split into two videos “Part 1” and “Part 2” as there will be a Q&A intermission
  • File Format: MPEG-4 (.mp4) file (use the normal H.264 video and AAC audio codecs)
  • Video Size: HD (1280 x 720 or other "720p" setting)
  • Audio Quality: please double check your files before submitting to make sure the audio is clear and audible!


Posters and demos will be presented in two parallel tracks on Saturday, May 2. Tutorials will be presented in two parallel tracks on Sunday, May 3. Regular and short-papers will be presented in a single track on May 4-6 along with keynotes, industrial panel, Chair comments/awards, etc. Sponsors will rotate during the breaks of the program to demonstrate their products and talk to participants. The schedule for tutorials and papers already posted online will be followed also at the virtual conference. We will annotate the Program with poster/demo presentations on May 2.


Q&A sessions: following the video paper/poster/demo, one of the authors needs to be on-line to address Q&A moderated by the Session/Demo/Poster Chair. Duration for Q&A sessions are:

  • Regular papers: 4-5 minutes
  • Short papers: 2-3 minutes
  • Poster or demo: 5 minutes


Tutorial Q&A: the tutorial moderator will pause the video occasionally allowing a total of 20-30 questions to be asked “on the fly” by the participants to the tutorial presenter for a total of 25min of tutorial Q&A (per tutorial).



Videos should contain a prominent view of the presentation slides along with audio of the spoken presentation. Optionally videos may contain a shot of the speaker's head for increased engagement. (This shot should be thumbnail-sized and overlayed on the slide images as shown here.) Many presentation software allows recording audio and video directly in the application and can export appropriate video files. Please see the notes below for detailed instructions for PowerPoint and KeyNote. If you use a different application, please see the notes under Other Options.


  1. Follow these instructions to add audio (and optionally video) to your slides.
  2. Follow these instructions to generate a MPEG-4 (.mp4) file from your slides and audio/video.
  3. Alternatively, you can follow this video tutorial which goes through both of these steps. Also, see this video tutorial if you like.

Other Options

  1. Record your screen (and microphone) while giving the presentation. There are effective and free options to do this on LinuxmacOS, and Windows.
  2. As a last resort, and only if you are comfortable directly editing video, you can export your slides as images, record an audio track, and combine the two using software like kdenliveiMovie, or others.


Do not hesitate to contact our TPC if you are unsure of how to generate your presentation video.