MIR Assertions
MIR Assertions
MIR Assertions lets verified organizations make cryptographically-signed, publicly-verifiable statements about media artifacts. No files uploaded. No central authority deciding truth.
MIR records who made each assertion about a media file. It does not judge accuracy, detect fakes, or label content.
Every assertion is cryptographically signed with the issuer's private key. Anyone can verify it came from them.
Files are identified by their SHA-256 hash. Your media never leaves your device. MIR only stores 64-character fingerprints.
Organizations apply, verify domain ownership, and register signing keys before making any assertions.
Assert "this is not from us" against fabricated content. Give the public a way to check before believing.
ISSUED_BY, NOT_ISSUED_BY, DISPUTE, ROLE_SCOPE, INTENT, METHOD. Each carries different meaning.
Anyone can look up assertions. No account needed. Embed verification badges on your own site with a single script tag.
Any organization that publishes media and cares about attribution.
Sign original photos and video before publication. Readers verify authenticity by dropping the file into MIR lookup.
Assert ownership of your work. If someone misattributes or fabricates content in your name, issue a NOT_ISSUED_BY.
Stamp official communications. Deny doctored documents. Give citizens a way to verify what's real.
Disclose AI-generated outputs with METHOD assertions. Provide transparent provenance for synthetic media.
Look up any media artifact by its SHA-256 hash, or apply to become a verified issuer.