My wife's friend, a Seattle local, led us (and our daughter in her stroller) on a birding walk at the UW Wetlands just off Union Bay. There was a good density of birds populating the wetlands! It was a pleasant spring morning so maybe the birds were especially active ahead of the migration and breeding season.
The highlights for me were a group of Ruddy Ducks, including a near breeding plumage male which I hadn't photographed before, and an eye-level Brown Creeper with decent lighting.
These photos are © 2023 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
📄 hashes-2023-04-03-193315.txt
📄 hashes-2023-04-03-193315.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: 58b869d52fd19cea9127f2fcd8a7f11b1797eccf8d54954b11828cf74a377f89
view the ALGO tx on explorer.perawallet.app: KFXXMMDVP6X2B6KHGR534XWDYLURSXFGJFHM43ZVBHJTA2DFEURQ
© 2024 Phil Thompson
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