The creator evidence field guide

Read the signal.
Respect the limit.

Practical guidance for documenting digital files without turning uncertain evidence into a false claim.

01

Metadata is evidence, not a verdict

EXIF, XMP, PNG text chunks, software tags, and workflow records can reveal useful facts. They can also be removed or rewritten, so no single field should be treated as absolute proof.

Inspect embedded fields
02

Clean a copy—never your only original

Privacy cleaning re-encodes visible pixels into a new container. Keep your source file because embedded creator, camera, and workflow evidence may be useful later.

Create a clean copy
03

A fingerprint identifies exact bytes

SHA-256 is excellent for checking whether two files are exactly identical. It does not identify the creator, prove ownership, or explain why a file changed.

Generate a fingerprint
04

Credential detection is not verification

A browser scan can surface C2PA or JUMBF-related data. Cryptographic validation and claim inspection belong in a standards-based verifier.

Check credential signals
05

Declarations should stay labeled

A creator manifest is most credible when detected facts, user declarations, missing information, and limitations remain visibly separate.

Build a manifest
06

Delivery records should be reproducible

Record the exact file name, dimensions, format, byte size, and fingerprint at handoff. A recipient can hash their copy later and compare it with the delivery record.

Run a delivery check
Standards-based handoff

When a credential signal appears, verify it at the source.

OriginFlux detects recognizable credential-related data locally but does not claim to validate cryptographic signatures. The official Content Credentials verifier is the appropriate next step.

Open official verifier ↗