During some early-morning backyard birding, while many birds in the area were singing, I heard a distinct, different call. The Merlin app's "Sound ID" feature identified it as a Purple Finch song. That would have been a new yard bird, so I looked around in the trees but didn't see one. The bird didn't sing again to help confirm its presence. But after a few minutes a brown finch visited one of our feeders. In reviewing the photos later, it looks good to ID as a female Purple Finch. I'm guessing then there was a male-female pair in the yard.
These photos are © 2023 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
📄 hashes-2023-04-30-182909.txt
📄 hashes-2023-04-30-182909.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: c8f27adfbb7d5ae30845a68fe0620e8a34a1ac557438bebf48e2f4475ccefbf8
view the ALGO tx on explorer.perawallet.app: OAVK36JTTM5SGSDOHIAWPT7MPOG6I6ATIOOQ42R3MHTDJFYVVH7Q
© 2024 Phil Thompson
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