How can we know our "from" address in advance?

How can we know our "from" address in advance?

1

This website ask me to enter the address FROM where I would be sending BTCs. But every time a send some BTC it seems to be sent out from a different address... Should I use the one I always see when I say I want to "receive" some BTC? Is it my "main" address?

Jusoaresf

Posted 2017-10-03T07:31:40.310

Reputation: 23

1It sounds like the website you're interacting with doesn't understand how Bitcoin works. – Greg Hewgill – 2017-10-03T19:45:49.623

Answers

1

There is no from address in Bitcoin. https://en.bitcoin.it/wiki/From_address

Each transaction reference an unspent output (UTXO) that was sent to you in a previous transaction.

About the address, you need to generate a new one for each payment: https://en.bitcoin.it/wiki/Address

Julien Klepatch

Posted 2017-10-03T07:31:40.310

Reputation: 236

Asked: 2017-10-03T07:31:40.310

Viewed: 42 times

Active: 2017-10-03T09:23:16.247