Paytaca Card · For individuals
Tap to pay, still self-custodial.
An NFC card that spends from a Bitcoin Cash smart contract you control. It feels like an ordinary contactless card; the keys never leave your wallet, and the spending rules are enforced on-chain rather than by an issuer.
What makes it different
A card with no issuer in the middle.
The card holds no funds
The balance sits in a smart contract on Bitcoin Cash, not on the card and not with a card company. The card is the tap; the contract is the account.
Rules live on-chain
Each merchant you authorise is written into a CashToken commitment together with a spend limit. A tap outside those rules does not clear. The contract, not a risk department, is what refuses it.
One limit per merchant
Authorisation is per merchant and carries its own cap, so a card used at a regular counter does not have to be trusted everywhere at once.
You can take it back
Revoke a merchant, change a limit, or sweep the contract balance back to the wallet. Authorisation is a setting you own, not a customer-service request.
The specifics
Checkable, not implied.
Rail
Bitcoin Cash, with a CashScript contract per card and CashTokens for authorisation.
Tap
NFC, presented to the merchant terminal, with no card-network message in between.
Default limit
1 BCH per merchant authorisation, adjustable per merchant.
Default expiry
30 days per authorisation, refreshed when you re-authorise.
Custody
Self-custodial. The card cannot move funds the contract does not permit.
First shown
Demonstrated publicly at Cash 3.0 in Cebu, July 31 – August 2, 2026.
A card that cannot freeze you out.
The convenience of a tap, without handing a custodian the right to decide where your money may go.