Marking record

single origin coffee subscription

From 2 August 2026, providers of systems that generate synthetic audio, image, video or text must mark those outputs in a machine readable way under Article 50 of the EU AI Act. A line of small print is not a mark, and it does not survive a re-upload. Generated through GMI Cloud, orchestrated with Genblaze, stored on Backblaze B2.

Campaign

Run: 0234c45e-3bd2-49b7-ac14-8d7ba7d694ee
Audience: office workers who care about coffee
Assets: 9
Approved by: Studio Lead
Approved at: 2026-07-28T11:33:14+00:00
Approval note: Cleared for paid social
Record: https://s3.us-east-005.backblazeb2.com/hackathon-press/campaigns/0234c45e-3bd2-49b7-ac14-8d7ba7d694ee/manifest.json

Marks applied

C2PA Content Credential: 9 of 9 assets
Embedded file properties: 9 of 9 assets
HALLMARK provenance record: 9 of 9 assets

Assets

Asset	Model	Review	Marks	Content hash (SHA-256)
Pour, slow motion video/mp4 · 6,984 KB	wan2.7-t2v	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	03dd6475c5d5c1e4c588ecab731b3101bff47e2bbf46c74419c30afd2d294992 check this file
Can, turntable video/mp4 · 7,133 KB	wan2.7-t2v	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	bca7aa32c2d975efb4bcb85236360e1376e50243e9d2a3c57994472613430987 check this file
Fabric, motion video/mp4 · 17,878 KB	wan2.7-t2v	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	04a94810e1f516e6c5ca399fd05a679d1b670561967d6a0735a2723bd3047f6a check this file
Cold brew, wet slate image/jpeg · 591 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	34281eb4609cf04cd41159e891480e4c92112efd2d2db5f9c5eee6f1d7e5c623 check this file
Headphones, gels image/jpeg · 371 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	cb23079c1ae81f9d1d5d463beb66313145726cb54df6e9708eb5dbc78e919f30 check this file
Perfume, caustics image/jpeg · 638 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	1afc71003c405c87c0d5a2ccc746794563bb2a4e57068f5a2c8998b122987b5e check this file
Runner, salt flat image/jpeg · 854 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	c7329565f35b1c92ba1078440b8d509137ac1cf6f025960ce43f714eaef7913e check this file
Serum, droplets image/jpeg · 410 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	1a749099b4256e7fc9eb8cbfcfc21c0ba66cbd22b6d3eb69d19c53f18345edd3 check this file
Watch, macro image/jpeg · 681 KB	gpt-image-2-generate	—	C2PA Content CredentialEmbedded file propertiesHALLMARK provenance record	cbc146253a03f9aef965f28edb976e0812c4f20f4927846685acf9af8ba9b8f6 check this file

Refused attempts (1)

Generated, checked, and not approved. Kept in storage unsigned, because nobody passed them. Each note is inside the same hash as the approval, so it cannot be reworded after the fact without the record failing.

Attempt	Why it was not used	Checks	Content hash
image gpt-image-2-generate	a higher scoring attempt was selected	1.0	c5e8182c85e00f0fa31cd3208380522c 1,539 KB

Pipeline

Generation	GMI Cloud	The models that produced the assets.
Orchestration	Genblaze	Records each step and the manifest covering it.
Storage	Backblaze B2	Holds the assets and the records they resolve against.

Attempts behind these assets

Modality	Model	Attempts	Accepted	Rate
audio	minimax-tts-speech-2.6-turbo	1	1	100%
image	gpt-image-2-generate	19	16	84%
video	wan2.7-t2v	4	4	100%

What this sheet does not say

This is a record of the marks applied to these files. It is not a legal opinion and it does not certify compliance on anyone's behalf.
Marks describe how a file was made. They cannot establish that what it shows is true, and nothing here has examined the content of any asset.
The judgement behind every refusal is the reviewer's. Where a note says it was worded by a language model, the model was given the reviewer's stated reason and the measured checks, and has never seen the asset it is writing about.
Metadata is removed by most platforms when a file is uploaded. An asset that loses its marks downstream is still covered by the record it was published with, which is why the hashes below are the durable part.

Each hash covers the picture, the sound and the visible credit, and leaves out the provenance boxes themselves, so attaching or removing a credential does not change it. Drop any of these files into the checker and it recomputes the same number in front of you. Nothing on this page has to be taken on trust.