Ecash for Other Stuff by Max Hillebrand.
bitcoin++
Max Hillebrand discusses how e-cash, invented four decades earlier, finally has a dedicated conference. He explains the core design: users deposit assets (gold, fiat, or Bitcoin) and receive anonymous, transferable cryptographic tokens representing access rights. These tokens allow fast, cheap transfers without revealing user identity. Cashu and Fedimint exemplify how e-cash extends beyond its ori

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