Bitcoin startup Sig3 has introduced an independent third-party automated co-signer which automatically co-signs transactions based on the policies and criteria implemented by its users.
With Sig3, users can customize and set their own policies to determine the criteria for transaction authorization and verification. Based on the policies implemented by the user, Sig3 automatically co-signs the transaction, adding another layer of security on top of the multi-sig transaction.
The platform is currently integrated with Copay, an open-source multi-signature wallet from leading bitcoin processor BitPay. With Copay, users will be able to send secure transactions by distributing three private keys between Copay, Sig3 and themselves. Since all three private keys held by the user,