A number of Bitcoiners, together with Jack Dorsey, have bolstered their push for the privacy-focused messaging app Sign to undertake Bitcoin by way of a brand new “Bitcoin for Sign” marketing campaign, which goals to combine Bitcoin with the Cashu protocol to allow funds inside the app.

“@Signalapp ought to use Bitcoin,” Dorsey posted to X on Thursday, retweeting a publish from pseudonymous Bitcoin developer Cashu, who’s behind the Bitcoin for Sign marketing campaign.

Bitcoin for Sign goals to implement Cashu’s “Chaumian Ecash” resolution, which integrates Bitcoin with the Cashu protocol to allow Bitcoin funds on Sign.

“Bitcoin belongs in Sign. Cashu ecash allows actually personal Bitcoin funds contained in the world’s most trusted encryption messenger,” the Bitcoin for Sign web site states.

Cashu’s pitch for Sign to undertake Bitcoin. Supply: Bitcoin for Sign

The marketing campaign has additionally been endorsed by Bitcoin developer Peter Todd, who desires Bitcoin to switch, or a minimum of develop on, Sign’s present crypto fee resolution, MobileCoin (MOB).

“I’ve been desirous to strive MobileCoin. However it’s such a failure I can’t even purchase any. Sign App wants to simply accept actuality and simply add Bitcoin assist,” Bitcoin developer Peter Todd stated.

Sign carried out MobileCoin in April 2021; nevertheless, it has been criticized for being overly centralized with a small set of validators.

Pseudonymous Bitcoin developer Calle and Satoshi Labs co-founder Pavol Rusnak additionally threw assist behind Bitcoin for Sign.

Given Sign has round 70 million month-to-month lively customers, a profitable implementation might make it a major platform for peer-to-peer Bitcoin transactions. 

Dorsey has beforehand argued that Bitcoin might be a failure if it’s solely used as a retailer of worth and never for on a regular basis funds — like how Satoshi Nakamoto supposed.

Supply: Jack Dorsey

Bitcoin wasn’t constructed to be a privateness resolution, critics argue

Nonetheless, a number of critics have famous that Bitcoin lacks privateness options built-in into its base layer, which can make it an unsuitable cryptocurrency to pair with a privacy-focused messenger app.

“Jack, why use a totally public blockchain for a privateness chat?” requested Aztec Community engineer José Pedro Sousa.

Techlore, a digital rights advocacy web page, argued Bitcoin would jeopardize the privateness of Sign customers.