A Hermit Thrush was hanging out for a while on our deck, so I had to run and grab my camera to take some through-the-window shots. The shots turned out pretty soft but Topaz Sharpen AI helped a bit to make the photos into keepers.
We also had a clear night, so I took the chance to photograph comet C/2022 E3 (ZTF) and the Orion Nebula. For those, I'll be publishing a couple blog articles with larger images soon.
These photos are © 2023 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
📄 hashes-2023-02-03-073856.txt
📄 hashes-2023-02-03-073856.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: 1b7f09526905ba27cc6063d102aa352cd28afe0c29c7c7e02d1160371a8c9bf1
view the ALGO tx on explorer.perawallet.app: 6LCTA3H2YHR3QIIO5JCDTTMZH64EWSIJ24UB6CZZC4XEOCTSVLOQ
© 2024 Phil Thompson
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