Blockchain

Bitcoin

Blockchain !== bitcoin

WORM

Основные понятия

Асимметричное шифрование

SHA256

Proof-of-work (PoW)

Proof-of-stake (PoS)

What is Bitcoin

Ledger

Just a DB 

BerckleyDB

LevelDB

+ C++ algorithm

What is 1 BTC

Transactions

Double speeding attack

Mining

We are Gods)

We define rules

0bd39f4fe9fe9fw

cfdfb94230ddawr

Is it worth to mine bitcoin?

SPV

Blooms Filter

Where it can be used?

Namecoin

float x = 0.1