The Russian ruble-backed A7A5 stablecoin continued to grow despite Western sanctions, processing more than $110 billion in cumulative onchain transactions, according to CertiK. CertiK said A7A5 captured about 43% of the global non-US dollar stablecoin market, and that its holder count rose from 13,000 to 29,000 wallets between February 2025 and May 2026. The security…