ChronoVerify joins Google, Microsoft, Meta, and OpenAI as initial signatories of the EU Code of Practice on Transparency of AI-Generated Content
On July 31, 2026 the European AI Office published the first list of signatories to the Code of Practice on Transparency of AI-Generated Content. ChronoVerify is on it, under Section 1, on the same first list as Google, Microsoft, Meta, OpenAI, Anthropic, Mistral, and Cohere. The list is public, maintained by the Commission, and checkable: the signatory list.
Who signed
As of July 31, 2026 the page counts about 190 organizations: 83 signatories under Section 1 (providers of generative AI systems, plus technology providers of marking and detection solutions), and 152 under Section 2 (deployers). Getty Images, Synthesia, and Black Forest Labs are on it; so are telecoms, media outlets, and, in the Commission's words, "small and recent companies", which is the row we sit in. Most Section 1 signatories are there to mark content they generate. Only a few names on the list are detection-side technology providers, and ChronoVerify is one of them. The Code stays open for signature and the list is updated on an ongoing basis, so read the counts as dated.
The Code in one paragraph
The AI Act's transparency obligations for AI-generated content, Article 50, enter into application on August 2, 2026. The Code of Practice, facilitated by the AI Office, is the voluntary instrument that shows providers and deployers a concrete way to meet them. Section 1 covers the provider side: marking AI-generated or manipulated content in a machine-readable format, and the detection mechanisms that read those marks.
Our capacity, stated plainly
The primary signatories of Section 1 are providers of generative AI systems, who commit to marking their outputs. ChronoVerify is not one of them, and the Code provides for exactly this case: Section 1 may also be signed by technology providers of marking and detection solutions. That is the capacity we signed in, on the detection side only. ChronoVerify generates nothing and marks nothing; our C2PA conformance record says the same thing in its own words, with an empty generate field. What we do is read: validate C2PA Content Credentials in JPEG, PNG, WebP, and AVIF images, as a C2PA Conformant Validator listed on the Conforming Products List.
What signing means
A public signal of intent to support the Code's commitments, alongside the providers doing the marking. Sharing a signatory list with Google or OpenAI means exactly that and nothing more: the same code, signed. It is not an approval of ChronoVerify by the AI Office, and there is still no such thing as an Article 50 certification. Article 50 places marking duties on providers and disclosure duties on deployers; it imposes no verification duty on anyone. Checking the marks is simply the working end of the system, and it is the end we build.
The week, in dates
- July 28: ChronoVerify listed on the C2PA Conforming Products List as a Conformant Validator.
- July 31: the first list of signatories to the transparency Code published, ChronoVerify included.
- August 2: Article 50's transparency obligations enter into application.
If your team is downstream of generated media, the reading side is where the work lands. The verifier is free and public, no account. A free API key covers 100 verifications a month; pay as you go is $0.003 per image; a single signed PDF report is $2.00 via the API; Scale is $299 a month.
Check an image against the marks Article 50 expects. Free, no account.
Open the verifierCommon questions
What is the Code of Practice on Transparency of AI-Generated Content?
A voluntary code facilitated by the European AI Office that shows providers and deployers of generative AI systems a concrete way to meet the EU AI Act's Article 50 transparency obligations, which enter into application on August 2, 2026. Section 1 covers machine-readable marking by providers; Section 2 covers disclosure by deployers.
Who signed the Code of Practice on transparency?
About 190 organizations appear on the first signatory list published July 31, 2026: 83 under Section 1 and 152 under Section 2, including Google, Microsoft, Meta, OpenAI, Anthropic, Mistral, Cohere, and Getty Images. The list is public on the Commission's site and is updated on an ongoing basis.
What did ChronoVerify sign?
Section 1, in the capacity the Code provides for technology providers of marking and detection solutions. ChronoVerify is on the detection side only: it reads and validates C2PA Content Credentials as a C2PA Conformant Validator, and it generates and marks nothing.
What happens on August 2, 2026?
The EU AI Act's Article 50 transparency obligations enter into application: marking duties for providers of generative AI systems and disclosure duties for deployers. Under the AI Omnibus package adopted in June 2026, generative systems already on the market have until December 2, 2026 to meet the machine-readable marking requirement.
Is ChronoVerify an initial signatory of the EU transparency Code of Practice?
Yes. ChronoVerify appears in the Section 1 column of the first list of signatories published by the European AI Office on July 31, 2026, as a technology provider of detection solutions. The list is public, so you can check the entry yourself.
Sources: the first list of signatories (European AI Office, July 31, 2026); the Code of Practice policy page; the signing FAQ; EU AI Act Article 50; ChronoVerify's conformance record; compliance and Article 50.