How to use passphrase authentication for dev?

[RealRimlin]

Hi guys,

Who knows, where can I find any manuals about this type authentication?
This data store in the blockchain?

I want use this technology in my startup, but can't find any info about it
Also want to know about how to store any data in the blockchain


Thanks

[achow101]

Can you please clarify what "passphrase authentication for dev" is?

And what do you mean by "This data store in the blockchain?"?

As for storing data in the blockchain, this is not recommended since you will be bloating the blockchain. That is quite selfish. If you really want to though, there are a variety of methods. You can use OP_RETURN to store 40 bytes, or you can do other stuff with addresses and scripts to store your data.

[RealRimlin]

I mean to make authorization like it wallet.crypti.me or bitnation. How is it work?
They store only hash?

[RealRimlin]

Any ideas?