Was this made by telegentv?
Every episode that telegentv delivers carries a signed proof in its tags and is entered in a register (no picture, no text, no address). Drop a file here to check it. The file is read, answered and deleted at once.
Look up an ID
How it works
The proof is a signature (Ed25519) over the ID, the time, the kind of file and a SHA-256 of its picture and sound data. The tags can be edited or removed without changing that hash; re-encoding, trimming or editing the picture does. So: genuine means signature and content are as delivered; changed means the signature is ours but the content is not the one signed; registered means the tags are gone but the content is in our register; tampered means the proof does not check; unknown means nothing of ours. A file that went through a social network's re-encoding will show as changed or unknown. The public key is at /.well-known/telegentv-signing-key.pem. The register keeps a row for five years.