[vondro]

But where is the BLOCKCHAIN?!

Anyhow, I wonder what problem does this actually solve. Almost all the money I spend is spent cash-less. Does this somehow allow to bypass Visa/Mastercard and thus be cheaper for merchant? What is the difference between digital euro and "paper cash"/normal euro in my account, being spent via card payments or wire transfers?

[alenrozac]

Solves the transmission of negative interest rates to all cash holders, not necessarily only to deposits. IF they ever chose to do so.