Altcoin News Mastercard taps Polygon to turn clunky crypto addresses into simple usernames November 18, 2025 Mastercard is rolling out verified, human-readable crypto aliases to self-custody wallets, using Polygon for onchain support and Mercuryo for identity verification. Post Navigation Previous Libra token-linked wallets pull $4M and bet big on SolanaNext Mt. Gox moves $953M Bitcoin after 8 months, sparking market worries More Stories Altcoin News Libra token-linked wallets pull $4M and bet big on Solana November 18, 2025 Altcoin News ARK Invest scoops $10M in Bullish as it hits record low amid crypto stock rout November 18, 2025 Altcoin News Average Bitcoin ETF investor now underwater as BTC falls below $89.6K November 18, 2025