Tl;dr: what you might have is
- a seed-phrase for a Bitcoin pockets (the place you take care of your individual money)
- a receiving tackle related to a Coinbase account (the place you let Coinbase have possession of your money in return for an IOU)
You do not have a non-public key (and you do not want one as long as you retain that seed-phrase written down someplace protected – not on a pc)
I obtained 12 key phrases
That’s virtually definitely a seed phrase, additionally known as a recovery-phrase or backup-phrase.
Your grasp non-public secret is generated from that seed phrase.
In a hierarchical deterministic (HD) pockets, that grasp non-public secret is used to generate many pairs of personal keys and public keys.
For the most typical forms of Bitcoin transaction, a public secret is used to generate a bitcoin tackle to which cash could be despatched.
and a hash (beginning with 17) which I all the time thought was my bitcoin key.
A string of round 32, 33 letters and digits beginning with a “1” is an old-style of Bitcoin tackle that’s nonetheless legitimate and fashionable. It’s a Bitcoin tackle, not a non-public key.
To see some examples take a look at some reference pages comparable to
Be aware that the identical non-public key could be proven to you in a number of other ways (encodings, display-formats).
From the above it’s best to have the ability to reassure your self that what you might have is a 12-word seed-phrase on your pockets and an unrelated bitcoin tackle on your Coinbase account.
