Dear blockchain enthusiast, TPBC 2021, the third workshop on Theory and Practice of Blockchains starts in exactly one week from today. This mailing list will be used for communication about TPBC 2021. As you have shown interest in it, we already subscribed you to the list. To opt out, simply use the standard "Mailman" command set (that would be, hypothetically, to send email to tpbc-request(a)list.inf.unibe.ch with "Subject: unsubscribe"). We have a great program assembled and are looking forward to every single day. Check yourself here: http://tpbc2021.blockchain-workshop.net/program/ Every session runs from 15:00 UTC to about 17:30 UTC; this is 17:00 CEST to 19:30 CEST or 11am EDT to 1:30pm EDT, etc. according to the following schedule: 15:00h Welcome and Keynote talk (35-40min talk + 5-10min discussion) 15:45h Break 16:00h Contributed talk 1 (20-25min talk + 5-10min discussion) 16:30h Contributed talk 2 (20-25min talk + 5-10min discussion) 17:00h Contributed talk 3 (20-25min talk + 5-10min discussion) 17:30h End Sessions will be hosted in Zoom and the links will be announced through this mailing list. As presenter we expect you to show the slides from your own endpoint. If you are a presenter, please join at least 10min before your slot. At this time, please publicize the workshop as widely as possible. Looking forward to seeing you there! Chaya, Giorgia & Christian