Discover expert articles on photo verification, digital authenticity, and building trust in the modern visual landscape
What to ask of a photographer when the images may end up in a claim or a case: RAW originals, a correct clock, a content-binding hash list at first backup, an independently dated receipt per card, and verified exhibits. Written to be pasted into an engagement letter.
The three claims a Lumethic offload receipt and verification report make, the checksum grades, the timestamp authority behind the anchor, what the checks do and do not establish, the current validation status, and how to reproduce every check with standard tools. Written for counsel, experts and anyone asked to rely on a record.
California, Wisconsin, New York, and the EU now regulate AI-altered listing photos. What each rule requires and how agents can comply without extra paperwork.
Suspiciously green lawns, bending door frames, light with no source: the common tells of AI-edited real estate photos and how to check a listing image properly.
Google's SynthID Detector checks uploaded images, audio, video, and text for the invisible watermark and highlights where it sits. Who gets access, how to read a result, and what the portal cannot tell you about a photo.
Camera clock, time zone, RAW plus JPEG, color reference, card handling and same-day offloads. The settings and habits that keep documentation photography defensible, decided before the shoot rather than repaired after it.
Since 2017, hash-verified copies of digital files can be authenticated by written certification instead of live testimony under Federal Rules of Evidence 902(13) and 902(14). What the rules say and how photo workflows produce the records they ask for.
Offload tools default to xxHash, a speed checksum that cannot prove file contents. Why C4 is the right checksum type for evidence and documentation work, and what changes in your manifest when you switch.
EXIF data and file dates can be edited freely, so neither proves when a photo existed. What actually works: hashing the file and having the hash fixed in time by an independent party, from notaries to RFC 3161 timestamp authorities.
