2 ms·

You can do it without trust using nlocktime. https://en.bitcoin.it/wiki/NLockTime https://en.bitcoin.it/wiki/NLockTime

• Lerc 13y ago
  That is a different timer isn't it. That lets you make a delayed transaction, It doesn't stop a wallet holder from making an instant transaction. The service would be to provide a wallet where the holder could not generate an immediate transaction. Any attempt to access would cause the service to contact the owner. It's possible that nlocktime could allow it so that the service never reveals their private key, It auto approves time delayed transactions and notifies the owner that it has done so.
  • nwh 13y ago
    You can do a trick where you make a transaction from a private key with a nLockTime set in the future, then not broadcast it until that date, and destroy the original private hey. Then the only option is to wait until the time or block number set.