I got some (bad) photos of a male Rufous Hummingbird at home, which was exciting. The male(s) that migrate through don't visit my feeder, I don't think, so I've only caught glimpses of two of them in two years. I also went on two walks at a local lake, where I finally got a decent shot of a Golden-crowned Kinglet, and some in-flight shots of a pair of Northern Harriers.
These photos are © 2022 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
📄 hashes-2022-03-24-070653.txt
📄 hashes-2022-03-24-070653.txt.sig
The above hashes-<date>.txt file contains SHA-256 hashes of all the photos
from this shoot. The hashes-<date>.txt.sig is a signature of that hashes
file, created with my PGP key. The signature file
itself was written to both the Bitcoin Cash and Algorand blockchains, in the
OP RETURN and Note fields respectively, using the transactions below.
In short, this proves that these photos and the signature both existed at the time the
transactions were written to the Bitcoin Cash and Algorand blockchains.
This blog post has more details.
view the BCH tx on blockchair.com: 92484418906e7536b30f9f29c64d68045db87b2b7a849af2701d03e74716d5a1
view the ALGO tx on explorer.perawallet.app: 2SK5MPNQLPDGZR3LIR2QSFLPYWIHLKPO2XYN5UK3HQIQTJD7MDSQ