zipcoin Source

How it works

Sales tax

How every payment settles its sales tax in the same proof, and where each part goes.

Paid in the same proof

When you pay a shop, one zero-knowledge proof pays the shop and the sales tax together. The tax is settled on the spot, and nobody learns who paid.

  • Part is burned.
  • Part pays the couriers who carry proofs and keep the network private.
  • The rest goes to the project treasury, a multisig that pays the running costs.

The tax is paid in ETH, like every payment here. The rates are fixed when the contracts are deployed, and can't exceed 10%. Shops put down a stake, and a shop that asks to be paid around the tax can be slashed: see random inspection.

There's no token behind any of this: the tax pays for the network, not for anyone's investment. Nothing here is investment advice.

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