{"page":"/blog/ssai-ctv-ad-serving","modified":"2026-11-10","license":"https://creativecommons.org/licenses/by/4.0/","columns":["Element","What it does in SSAI","Source"],"rows":[["","Orders ads in a pod; sequence values must be unique","VAST 4.4, 3.3.1"],["","Required creative ID kept across systems, for example from Ad-ID in the US or Clearcast in the UK; the stitcher's cache key","VAST 4.4, 3.7.1"],["","Raw high-quality file for transcoding; required in ad-stitched executions; error 406 if missing","VAST 4.4, 3.9.2"],["","Ready-to-serve files; VAST 4.x asks for an adaptive stream or at least three quality levels","VAST 4.4, 1.3.1"],["","Loads measurement code such as OM SDK scripts","VAST 4.4, 1.2"],["","In 4.4, carries pause, screensaver, overlay, squeezeback and in-scene ads","VAST 4.4, 1.9"]],"sourceUrls":[["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"],["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"],["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"],["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"],["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"],["https://github.com/InteractiveAdvertisingBureau/VAST4.x/blob/main/4.4.md"]]}