Shoot 2025-09-23-203028 — philthompson.me

Birds
Mandel

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Shoot 2025-09-23-203028

A Stilt Sandpiper was reported locally, and I was able to go out and find it fairly easily. Ideally it would have been out on some mud somewhere so I could see its namesake long legs, but a lifer's a lifer! Besides that bird, I wandered around a little and ended up with a few photos capturing the late summer and early fall behaviors of birds here in the county.

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

Signature

📄 hashes-2025-09-23-203028.txt

📄 hashes-2025-09-23-203028.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: dabbb078d2bac94634e93b71949f44cc30c2e5285e84ddfe9c72f9eee2ee3099

view the ALGO tx on explorer.perawallet.app: PA42TQU2OPPRWWEXGBRY5LBW7DXHAY6CE6O35HGCTHTFD6EBBIEA