Bitcoin Forum

Bitcoin => Development & Technical Discussion => Topic started by: Kazimir on November 13, 2013, 04:23:54 PM



Title: online script or some tool to view or inspect a signed tx, without sending it?
Post by: Kazimir on November 13, 2013, 04:23:54 PM
For safety reasons I create and sign my transactions offline (in a dedicated offline Linux environment). Once I got the signed transaction as a hex string, I can then broadcast it to the network using e.g. blockchain.info/pushtx

Question: is there some online script or a tool or something, that allows me to view a transaction, i.e. show the inputs & outputs, without actually broadcasting it?


Title: Re: online script or some tool to view or inspect a signed tx, without sending it?
Post by: CIYAM on November 13, 2013, 04:25:09 PM
You can use http://blockchain.info/decode-tx (otherwise use the "decoderawtransaction" command with bitcoind).


Title: Re: online script or some tool to view or inspect a signed tx, without sending it?
Post by: Kazimir on November 13, 2013, 05:01:53 PM
Awesome, thank you sir! https://i.imgur.com/QHDmr.png


Title: Re: online script or some tool to view or inspect a signed tx, without sending it?
Post by: CIYAM on November 13, 2013, 05:14:41 PM
Most welcome - although it takes a bit of getting used to once you've mastered raw transactions you'll never turn back (although hopefully "coin control" will make it into one of the next releases to make easier for others)!


Title: Re: online script or some tool to view or inspect a signed tx, without sending it?
Post by: dserrano5 on November 13, 2013, 05:59:40 PM
For safety reasons I create and sign my transactions offline (in a dedicated offline Linux environment). Once I got the signed transaction as a hex string, I can then broadcast it to the network using e.g. blockchain.info/pushtx

Question: is there some online script or a tool or something, that allows me to view a transaction, i.e. show the inputs & outputs, without actually broadcasting it?

See my sig ;). It's what I always use to create transactions. It creates and signs transactions but you can always alter it to your needs, perhaps split it into two parts, one for creating and one for signing.


Title: Re: online script or some tool to view or inspect a signed tx, without sending it?
Post by: etotheipi on November 13, 2013, 07:17:55 PM
Armory does this by default with offline transactions.  You create the transaction on the online computer.  Take it to the offline computer and view/verify the inputs and outputs.  Then you sign and take back to the online computer, where you can [optionally] review the inputs and outputs again.  Then you click "Broadcast" to send it to the network (finalize it).

If you aren't using an offline computer setup, you can still do this with a hot wallet by using "Create Unsigned Transaction" button instead of the "Send" button.  Then in the next next window you can sign and broadcast it, optionally reviewing the inputs and outputs before/after each step.