Some of these photos were taken at the park, where I managed to get a couple passable shots of a new lifer, the Cliff Swallow, and some were taken at home, where I also saw three new lifers, a pair of Black-headed Grosbeak, a pair of Evening Grosbeak, and an immature Cooper's Hawk.
These photos are © 2021 Phil Thompson, all rights reserved.
My "birds in review" collages can be found here.
Signature
📄 hashes-2021-05-13-193250.txt
📄 hashes-2021-05-13-193250.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: 44e68926f8026954294376bf6f1ccd3ffe207b399172f72c5c77018d3a2aa5f4
10:14AM Monday May 10, 2021
Cliff Swallow
10:30AM Monday May 10, 2021
Red-winged Blackbird
3:26PM Monday May 10, 2021
Black-headed Grosbeak
3:27PM Monday May 10, 2021
Evening Grosbeak
3:29PM Monday May 10, 2021
Black-headed Grosbeak
6:46PM Monday May 10, 2021
Cooper's Hawk
6:48PM Monday May 10, 2021
Cooper's Hawk