Shoot 2025-12-18-111553 — philthompson.me

Birds
Mandel

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Shoot 2025-12-18-111553

It's been windy, rainy, and foggy here, and I've been busy on other things, but I did go out and get some fresh air and birding time recently. A partially leucistic song sparrow caught my eye at the wetlands, and I ran into what I presume is the same Northern Shrike I saw recently. It's always special to see these birds! I saw a nice variety of birds on another outing at the local reservoir, including good numbers of one of the largest and heaviest flying birds in the world: American White Pelican.

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

Signature

📄 hashes-2025-12-18-111553.txt

📄 hashes-2025-12-18-111553.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: 0ccacf336a7a02c0d4de7885f1934359c40d3a1215145bb3e8599962b06c898d

view the ALGO tx on explorer.perawallet.app: I2B7HUT2TBICDKQSZLI7XSZOK3SCDQ5IKU2C4JIW5VRCNH7IIB4Q