Who used Blockchain software to mine bitcion?

Blockchain is not mining software. Blockchain is a distributed ledger system for recording transactions.publicly and sequentially.

1) I have never heard of 86 bit OS.
2) most of the easily obtainable Bitcoin have been mined.

@RocketGuy How do you mine bitcoin? Where does it “come” from?

How old is that youtube? Nobody has mined a bitcoin in 40 minutes for years except maybe with custom FPGA hardware.

Bitcoins are unique number codes, based on prime numbers, that you can trade with other people. Bitcoin trades are backed by a block chain system that tracks every trade to ensure 100% accountability for each trade (can’t duplicate and trade the same Bitcoin). Being that each coin is based on a prime number, the smaller prime numbers have already been claimed. Mining software tries to generate new prime number codes that mesh with the Bitcoin standard. If successful, the code is saved into the block chain and you have created a Bitcoin for yourself. At this point, only super long prime numbers are still undiscovered, so it takes a long time to find each code. The cost of electricity to run a computer to do that is more than the value of 1 Bitcoin at this time. Better to spend that money to buy the ones discovered (mined) already.