Large-scale Image Dataset Of Perceptual Hashing?

‘Our dataset contains 1 200 original images’ which is not that many

Do you know of a big dataset of
URL, date first, date last, phash (or other well used perceptual hash)

for millions/billions of images

It seems to be the sort of thing that would be

1. useful. ‘this photo first posted here’ is a useful thing to know.

2. Fairly small. Those above would be about a kb per image. a billion of those is a terabyte.

3. A complete pain to make the first time.

It would not get you images of the same scene or massively modified but the tiny size of the data means thats a trade off.