20
IBC2025 ACCELERATORS: STAMPING YOUR CONTENT (C2PA PROVENANCE);
ULTRA-LOW LATENCY LIVE STREAMING AT SCALE
Being showcased at 09:45 today on the Future Tech Stage in Hall 14, the ‘Stamping Your Content (C2PA Provenance)’ Accelerator project aims to provide open-source tools to enable media organisations and media consumers to verify the authenticity of content of all types. It follows on from last year’s IBC Accelerator project ‘Designing Your Weapons in the Fight Against Disinformation’, which mapped the landscape of digital misinformation and gathered industry players together to discuss the issue and outline the solution. This year the team has set out to make practical progress in tackling the issue, specifi cally aiming to build an open-source plug-in tool that inserts C2PA metadata into content at the time of publishing, establishing a chain of custody that can be linked to media organisations and reporters, authenticating footage and stills as being genuine. Additionally, a complementary open-source plug-in is being developed to decode and verify these credentials, allowing consumers to view elements of the metadata and thus be able to make an informed decision as to how trustworthy the media is. Champions for 2025 are the BBC, Yle,
RTE, ITV, IET, ITN, EBU, AP, ASBU, Channel 4 and IPTC, alongside Participants CastLabs, Videntifi er, Media Cluster Norway, Open Origins, Trufo and Sony. The project is based on the 2022 C2PA
standard, which provides both a starting point and a detailed specifi cation library. However, industry adoption of C2PA has been sporadic to date, for a variety of reasons. Henrik Cox, Product Manager, OpenOrigins, explains: “The challenge of adopting C2PA widely as a standard is that there are many holes to fi ll in along the way, especially when media fi les undergo a lot of processes. In order to build that trust with the end consumer, you’ve got to protect that audit trail or history of provenance associated with a media fi le. Often, C2PA loses it along the way. So that’s the main challenge – if this metadata is stripped along the way, how do we bring that back?” Although progress on the 2025 project has been rapid, the early focus was on ensuring consensus and creating a robust and scalable project, rather than rushing in to creating a large codebase. This then shifted to actual coding sprints, as well as tackling other, even more complex issues, such as live.
Forrest: ‘We’re grappling with the challenge of live streaming’
“The challenge of adopting C2PA widely as a standard is that there are many holes to fi ll in along the way” Henrik Cox, OpenOrigins
Tim Forrest, Head of Content Distribution and Commercial Innovation, ITN, said: “We’re grappling with the challenge of live streaming. We’re initially building this all around formed content that is complete, but we know that live streaming is a very defi nite use case that’s going to be needed the whole time, and potentially a barrier to this solution becoming more widely used and becoming adopted is around trying to fi x that.” The second project being presented today is ‘Ultra-Low Latency Live Streaming at Scale’, at 12:45. Featuring Champions BT Media & Broadcast, RTE, SVTA, Globo, BBC, YLE, Channel 4 and Bouygues Telecom, and Participants Elecard, Google, Ateme, Yospace and Qualabs, it builds on the foundation of the previous ‘Scalable Ultra-Low Latency Streaming for Premium Sports’ Accelerator. This year’s project aims to demonstrate that ultra-low latency streaming can be successfully
deployed at scale using standard HTTP streaming technologies (DASH and HLS) and existing content delivery infrastructure. It has explored key technical components, including CDN and multicast ABR (mABR) integration, personalised ad insertion, and the use of CMCD v2 for Quality of Experience monitoring and ad beaconing. The objective is to achieve ultra-low latency glass-to-glass delivery, near-instant playback start and tight synchronisation across multiple viewers on consumer devices.
A central focus is designing, testing and demonstrating an open, non-proprietary architecture capable of supporting ultra-low latency streaming for millions of users. By leveraging currently deployed infrastructure, this approach will provide media organisations and service providers with a scalable solution to transition from traditional broadcasting to internet-based TV delivery without compromising performance.
Stamping Your Content (C2PA Provenance) takes place from 09:45-10:45 today on the Future Tech Stage in Hall 14. It is followed by Ultra-Low Latency Live Streaming at Scale at 12:45-13:45.
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