Uhh. #apple does now (Apple) #hashcash and the logins to #appstoreconnect don’t work for me anymore …

Crypto Stories: Dr. Adam Back erzählt von seinem Leben voller Hacks https://de.cointelegraph.com/news/crypto-stories-dr-adam-back-shares-his-life-of-hacks #Geburtstagsparadoxon #Technologie #AdamBack #HashCash #YouTube #Bitcoin

#hashCash is a proof-of-work anti-spam system for email proposed in 1997. People wanting to send an email would need to brute-force calculate a value (nonce) and include it the header.

It never really took off in itself, but became a building block for #bitcoin

#PoW understandably has a Very Bad Reputation for ecological through bitcoin, however its use as anti-spam has advantages, and is used by the accessibility friendly CAPTCHA system, #mCaptcha https://mcaptcha.org/