British Computer Society (July 2020)
The talk "Why J-Core is Cool" is in the BCS playlist An Evening on FPGAs, first entry after the introduction.
Embedded Linux Conference (April 2016)
The talk Building a CPU from Scratch: jcore Design Wakthrough has video on youtube (re-uploaded after an accident), and here are the slides.
Linux Jamboree #54 (September 2015)
We went back to Linux Jamboree (the 1pm timeslot) to give an open processor tutorial where we gave away a dozen Numato Mimas v2 boards to the audience, and as our panel description said:
Linuxcon Japan 2015
Linux Jamboree #52 (April 10, 2015)
The earliest public presentation of J-core to a technical audience was at the 4pm session of Linux Jamboree 52 (more or less a quarterly Tokyo LUG meeting). There is video on youtube (parts in english, parts in Japanese) and here are the slides (all in english).
Thanks to Core Semiconductor for hosting this wesite and contributing engineering time and hardware to the J-core project.