Shoot 2021-12-30-195632 — philthompson.me

Birds
Mandel

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Shoot 2021-12-30-195632

This is another round of backyard birding — a few days' worth. Notably, the 44th bird of the year for my yard, a Red-tailed Hawk, made an appearance on Christmas day, which was exciting. I had to shoot through the window but was able to get some decent shots. Also noteworthy was an unusual amount of snowfall for our region, in the days following Christmas, which allowed me to finally take some bird photos in the snow!

My "birds in review" collages can be found here.

Signature

📄 hashes-2021-12-30-195632.txt

📄 hashes-2021-12-30-195632.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: 6256ceb69a7ce9c07519780e562205b83319ae8c27ce45c3f331e8a334ad3cd6

view the ALGO tx on explorer.perawallet.app: 5KSPS552WN6Y3AO4JUDSZZOYNO4TYHAAM6KORQJ53LY2FNVHZJ7Q