Bitcoin Covenants part 3: SIGHASH_ANYPREVOUT

What if the same Bitcoin signature could authorize spending from multiple different UTXOs? BIP 118's ANYPREVOUT does exactly ...
Hackaday

Building A Wireless Fingerprint Authorization Device

Once upon a time, there was a bit of a fad for fingerprint authentication in laptops and desktop computers. It has long since ...

Declaration of Independence’s forgotten (non)signer: John Dickinson’s missing signature haunts legacy

Scholars revive John Dickinson, the founder long reduced to a footnote as the man who wouldn’t sign the Declaration of ...
Biometric Update

Yubico hackathon to preview YubiKey 5.8 support for next-generation passkeys

The virtual developer hackathon for the FIDO Alliance developer community will give developers an early look at the upcoming YubiKey 5.8 firmware release.
9to5Google

Google rolling out new ‘Signatures’ app to Pixel and other Android phones [Gallery]

Google is quietly installing a new app on your Android phone, with the "Signatures" app now showing up on Pixel and other ...
Proposition 206

Number of signatures required for ballot initiatives

Laws governing ballot measures in the U.S. Laws governing ballot measures in the U.S. There are 26 states that provide citizens with the power of initiative, referendum, or both. The number of ...