Bitcoin & Blockchain
Blockchain Basics
Where to learn more
bitcoin.org
antonopoulous.org
www.buybitcoinworldwide.com/united-states
coinmarketcap.com
blockchain.info
anders.com/blockchain
dedi.jochen-hoenicke.de/queue
Unchained podcast
Bitcoin blockchain concepts
- Block size
- Average block time
- Coinbase reward
- Transaction fees
- Mempool
- Halving events
- UTXO
- Nonce
- Token
How does a blockchain work?
Cryptography 101
Encryption
Decryption
Hashing
-
One-way
-
Used for security
-
Fixed length string (or number)
-
Wildly varying
-
Two-way
-
Not used for security
-
Variable length string (or number)
Encryption
Decryption
ASCII - 7-bit Unicode / UTF-8
URL encoding
Base58
Examples:
Encryption
Decryption
ASCII - 7-bit Unicode / UTF-8
URL encoding
Base58
Examples:
Encryption
Decryption
ASCII - 7-bit Unicode / UTF-8
URL encoding
Base58
Examples:
A-Z
a-z
0-9
26 characters
26 characters
10 characters
62 characters
minus "0 O I l"
Hashing
Examples:
MD5 - 16-byte (32 hex digits)
SHA1 - 20-byte (40 hex digits)
SHA256 - 32-byte (64 hex digits)
2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
e83b2ac5b9e29e1b161e5c1fa7425e7304336293
b0a30e26e83b2ac5b9e29e1b161e5c1f
SHA256 Hash
SHA256 Hash
Bitcoin and Blockchain: Blockchain Basics
By Bob Holben
