Optimize Signing for Display

Truepic's Content Credentials display library is designed to provide consumers with clear and trustworthy information about media. It works seamlessly out of the box, requiring no customization. Our commitment to an optimal user experience is driven by ongoing research and iterative design. As a result, the overlay selectively displays only the most relevant assertions and fields, focusing on what best informs the viewer while omitting details that could overwhelm or distract.

The sections below detail exactly which elements will and won't appear in the display, how they get there, and the rationale behind these choices. This guide will help you understand the logic of our display and optimize your signing process accordingly.

General fields

Here's a reference of what can and will appear in the overlay based on what is currently supported.

Display label or item	Validation report field	How to include or customize
contains `n` records	count of manifests in `manifest_store`	Sign multiple times
Signed by	`signature.signed_by` The organization named in the certificate	Our tools add automatically. Contact us to update your organization's name.
Created with	`claim_generator_info`	Each Truepic signing tool allows you to customize the name. The native SDKs automatically use your app's name.
Location	`EXIF:GPSLatitude`, `EXIF:GPSLongitude`	When signing, include a `stds.metadata` (for C2PA 1.4) or `c2pa.metadata` (for C2PA 2.0) assertion with these keys.
Edits and activity	List of actions in `c2pa.actions` assertions	When signing, include action assertions.
Ingredients	`assertions.'c2pa.ingredient'`	When signing, include ingredients.
Thumbnails	`assertions.'c2pa.thumbnail.claim'`	Truepic tools support thumbnail generation for jpg, png, svg, and webp. For all other formats, you'll need to provide one at sign time.
Created [date]	`exif:DateTimeOriginal` in a metadata assertion or `when` in an action assertion	Include `when` in an action assertion

Key characteristics

Truepic's display provides a summary of key Content Credentials characteristics across manifests, offering essential information at a glance.

Here’s a guide to the labels and the conditions that assign them.

Label text	Triggering condition
AI-generated content	`digitalSourceType` of `trainedAlgorithmicMedia` or `algorithmicMedia` found in an assertion
AI-edited content	`digitalSourceType` of `compositeSynthetic`, `compositeWith TrainedAlgorithmicMedia` or `algorithmicallyEnhanced` found in an assertion
Camera-captured media	`digitalSourceType` of `digitalCapture` found in an assertion of media with only one manifest
Contains camera-captured media	`digitalSourceType` of `digitalCapture` found in an assertion of media with more than one manifest
Visual edits	Action assertions with visual changes found in the manifest(s) of an image
Content edits	Action assertions with visual or editorial changes found in the manifest(s) of an audio or video file
No visual edits	No action assertions with visual changes found in the manifest(s) of an image
No content edits	No action assertions with visual changes found in the manifest(s) of an audio or video file
Combined assets	Manifest(s) with multiple ingredients were found
Untrusted sources	Manifests signed with an untrusted certificate authority were found. In a verification report, there would be a `validation_statuses` of `signingCredential.trusted` `FALSE`
Unknown ingredients	Manifest(s) contain unsigned ingredients (no C2PA data found).