Precooked one-time use wallets / Copay scripting

[matiu]

• Copayer's backup can be downloaded with a one-time
  use wallet that already have txProposals in it.
• These unfounded txProposals wont even have the
  p2sh address (no pubkeys yet), but they will generete
  them once the wallet have the pubkeys.
• In order to the peers to find themself, a date/time meeting
  can be scheduled and saved on the wallet, as a message. If once of
  the participants is non-human, the copay can be always open to
  facilitate the pubkey gathering. That is already implemented on
  copay.
• some kind of simple scripting could be made to implement that.
  • tx1=create tx with params:
  • if tx1 is rejected: tx2=(); message:()

=> so a user can download the new onetime wallet,
and follow the onscreen steps to do a decentralized
complex financial transaction.