In this guide we will see how to sign an ETH transaction from an offline computer and thereafter send it (broadcast) with an online computer without exposing the private key. This is useful for a better security profile and...
We recently got aware that the big Korean company is going to release a crypto wallet into the new S10. This is already a great news. But in addition to this, it seems that (even the news is still...
Jack Dorsey, who is the founder of twitter, declared at the podcast “Tales from the crypt” he purchases $10’000 value of bitcoin per week. Even if for a milliard dollars man like he is, this amount may be a...
Suppose you have a directory on your server where precious files are stored but there are multiple users owners and you want to preserve them while backupping. Suppose also you want to mount an external sshfs or cifs share...
The ethereum network will be under scheduled upgrade at block 7’280’000 aproximately 28 feb 2019. The exact date/time depends on block times. The original upgrade Constantinople was postponed, do you remember? this new upgrade shall fix test networks, for...
Do you want a bitcoin cold secure wallet but you dont know how to do? What is a cold wallet? A cold wallet is not something you install, it’s a way to store bitcoin in a full offline way....