In a blink-and-you’ll-miss-it announcement from a whirlwind IBC show, the low latency contribution protocol RIST has taken a leap into the distribution game – claiming that its latest updates enable users to create a completely open-source alternative to proprietary DRM systems, for use in a multicast distribution deployment. It is quite the claim, and somewhat buried in the news that the Video Services Forum (VSF) has released the 2022 versions of the RIST specification. These are the Main Profile (TR-06-2) and the Advanced Profile (TR-06-3), and the two new features are the aforementioned EAP-SRP Authentication, and VSF EtherType, which is a RIST-specific enhancement for the Ethernet standard. The scope of the RIST distribution announcement is uncertain. There is immense corporate…