Tether CEO: Bitcoin has 571.2 million on-chain users, and USDT has approximately 550 million.

CoinFeed reported on March 12 that Tether CEO Paolo Ardoino, citing data from Chainalysis and Artemis, stated that as of Q4 2025, the total number of Bitcoin on-chain users reached 571.2 million, with a quarterly increase of over 10 million; USDT's user base is slightly smaller than Bitcoin's, at approximately 550 million, but its quarterly increase exceeds 30 million.