Bitcoin pioneer Amir Taaki alleges he was expelled from Singapore after a six-hour interrogation.

ChainCatcher report: Amir Taaki, an early Bitcoin contributor and cypherpunk, stated on X that he was deported after being questioned by Singapore police for six hours regarding “the work I do.” The British-Iranian programmer said he has repeatedly encountered issues with certain countries since traveling to Syria years ago to fight alongside the Kurdish People's Protection Units. Taaki noted that in the past year alone, he was also deported from Argentina and Mexico, and detained in Serbia and Japan. He said that each time this occurs, he asks for the reason, but authorities always claim it is merely a random check and never provide specific grounds for detention or questioning. “I’m on a list, but I can’t find any information about which country has sanctioned me.” Taaki has long focused on Bitcoin privacy, developing the first implementations of CoinJoin and stealth addresses, creating libbitcoin, founding the UK’s first Bitcoin exchange, and authoring BIP 0001, which established the Bitcoin Improvement Proposal process. He is currently developing the privacy-focused encryption protocol DarkFi.