Verify v1.10.3 dmg

[matttrice]

Couple of notes:

1. On https://specter.solutions/downloads, click the Verify Signature link and all platforms seem to show the fingerprint twice... kinda threw me off.
2. Same page, v1.10.3 Assets section lists 2 files with -macos but the links are 404s
3. Following the notes for verifying the signature, mac doesn't have sha256sum but I found coreutils via brew included it so I tried it but get a seemingly contradictory OK but also no properly formatted checksum lines.
   MacOS Monterey does have the command shasum -a 256 which spits out the same hash found in your SHA256SUMS except for an extra space between the hash and dmg file name... maybe thats why your assets list -macos versions... in which case would appreciate fixing the 404s.

ref: