A yard first: Mourning Dove. This one appeared in the evening and stayed for a few hours, enjoying some fallen food from the feeders.
These photos are © 2022 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
📄 hashes-2022-04-03-140848.txt
📄 hashes-2022-04-03-140848.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: e5efd22b172d3f80e871b851543064e928d0aeafe0a08d5acf7925bd4fbd57b6
view the ALGO tx on explorer.perawallet.app: SE5VQPEZYFGJZSZR232NABYMEM4PMOIWLUYHDHT44BG3FH4IE3SQ
© 2024 Phil Thompson
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