Proving to a title agency a bitcoin transaction occurred?

[Geremia]

What is the best way to prove to a title agency that a particular bitcoin transaction has occurred and that the addresses do indeed belong to the parties exchanging the title?

(cf. the Bitcoin StackExchange question)

[RustyNomad]

The transaction being on the blockchain should be enough proof of the transaction that took place.

In regards to the addresses, all I can think of is that each party sign a message with the respective addresses used and maybe include something personal in the message like maybe their email addresses and also include the transaction id.

[odolvlobo]

What is the best way to prove to a title agency that a particular bitcoin transaction has occurred and that the addresses do indeed belong to the parties exchanging the title?

(cf. the Bitcoin StackExchange question)

To prove that the transaction occurred, show it in the block chain. To prove that the parties control the addresses involved, have them sign statements with the private keys.

[Geremia]

In regards to the addresses, all I can think of is that each party sign a message with the respective addresses used and maybe include something personal in the message like maybe their email addresses and also include the transaction id.

To prove that the transaction occurred, show it in the block chain. To prove that the parties control the addresses involved, have them sign statements with the private keys.

Wow, genius and simple; I can't believe I didn't think of that. thanks

[RGBKey]

There really isn't any other way besides what the other two above me posted, but this is why we have bitcoin, there is solid cryptographic proof that cannot be denied.