Morning at the Ponds — philthompson.me

Birds
Mandel

Morning at the Ponds

I got a chance to go birding with some partial sun. I had a few chances to photograph some Anna's Hummingbirds, but I learned that my camera usually can't autofocus on them. I'll try manual focus next time.

In this shoot I got photos of the Golden- and White-crowned Sparrows, Anna's Hummingbird, Spotted Towhee, Yellow-rumped Warbler, Bufflehead, and Gadwall for the first time.

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

Signature

📄 hashes-2021-02-07-211156.txt

📄 hashes-2021-02-07-211156.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: 69b62f83e1d26cd775b9fb0e72a6cfa4e956cd5908526efc81fc28b03a479b54

view the ALGO tx on explorer.perawallet.app: --