A distributed, decentralized ledger that records transactions across many computers.

• Decentralization
• Transparency
• Immutability
• Security

A collection of transaction data and other relevant information, linked to previous blocks in the chain.

A digital or virtual currency that uses cryptography for security and operates independently of a central bank.

Bitcoin** What is mining in the context of cryptocurrency? :drill:blockchain_crypto: SCHEDULED: <2024-08-12 Mon>

:ID: 98830868-A45C-483C-A0F2-8DCC584886F8 :DRILL_LAST_INTERVAL: 4.0 :DRILL_REPEATS_SINCE_FAIL: 2 :DRILL_TOTAL_REPEATS: 1 :DRILL_FAILURE_COUNT: 0 :DRILL_AVERAGE_QUALITY: 4.0 :DRILL_EASE: 2.5 :DRILL_LAST_QUALITY: 4 :DRILL_LAST_REVIEWED: [Y-08-08 Thu 14:%]

The process of validating transactions and adding new blocks to the blockchain, often rewarded with new cryptocurrency.

A unique fixed-length string of characters generated from input data, used to ensure data integrity.

Self-executing contracts with the terms of the agreement directly written into code.

A consensus mechanism that requires solving complex mathematical problems to validate transactions and create new blocks.

A consensus mechanism where validators are chosen to create new blocks based on the amount of cryptocurrency they hold and are willing to "stake".

A digital tool that stores public and private keys and interacts with blockchain to enable users to send and receive digital currency.

• Hot wallet: Connected to the internet, more convenient but less secure
• Cold wallet: Offline storage, more secure but less convenient