Blockchain: Difference between revisions
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* [[Collision resistance]] | * [[Collision resistance]] | ||
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* [[Determinism]] | * [[Determinism]] | ||
* [[Distributed consensus]] | * [[Distributed consensus]] | ||
Revision as of 18:28, 8 March 2020
A block chain is a growing list of records, called blocks, that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree).[2]
A blockchain is a decentralized, distributed, and oftentimes public, digital ledger that is used to record transactions across many computers so that any involved record cannot be altered retroactively, without the alteration of all subsequent blocks[3]
A ledger is a permanent summary of all amounts entered in supporting journals which list individual transactions by date.[4]
Videos[edit]
The video below is easily the best I have found explaining blockchain. I would suggest you watch it several times.
The video below is a very good high-level overview of blockchain:
Start here to understand blockchain[edit]
- Trust and Currency
- Hashing
- Digital signature (see also Key pair generation and SHA256)
- Block
- Block header
- Candidate block
- Ledger
More advanced ideas in blockchain[edit]
Everything below this line is not yet completed for student learning[edit]
- Collision resistance
- Cryptocurrency
- Determinism
- Distributed consensus
- Double-spend problem
- Entropy
- Genesis block
- Immutable transactions
- Merkle proof
- Merkle tree
- Miner
- Mining
- Nonce
- Non-invertibility
- Non-repudiation
- One-way function
- Proof of work
- PuTTYgen
- Self-referential data structure
- Takeover attack
- Transaction pool