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9 videos that explain bitcoin

Bitcoin Explained by Kahn Academy

What is Bitcoin?

Bitcoin Overview

Bitcoin's Cryptographic Hash Functions

The cryptographic hash functions used for Bitcoin has the following inter-related properties (characteristics):
  • computational efficient
  • the generated digests are collision resistant
  • hide input information
  • the generated digests look random
The cryptographic hash function is applied to original message to generate a fixed length digest, and the digest is then further signed into a digital signature as explained in the next video.

Bitcoin Digital Signatures

In a digital signing scheme:
  • The original message is first cryptographically hashed into a fixed length digest.
  • Signer applies his/her private key to the digest to a generate the corresponding digital signature. This digital signature differs from one input message to another, even the messages are signed by the same private key.
  • The verification process takes the inputs of the original message, digital signature, and the public key to generate a yes/no result.
Bitcoin Transaction Records

Bitcoin Proof of Work Protocol

Given a challenge string, find a proof string so that the concatenation of challenge string and proof string will be hashed to generate a string with 40 bits of preceding 0's. Once the proof string is found, it is very easy to ver

Bitcoin Transaction Block Chains

Bitcoin Money Supply

At most 21 million bitcoin (BTC) will ever be generated. The incentive for miners will be the transaction fees set by the payers.

Bitcoin - The Security of Transaction Block Chains

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  • Home
  • Introduction
    • Videos Explain Bitcoin
    • Before you Own Bitcoin
    • Online Merchants that Accept Bitcoin
    • Free Bitcoin Courses
    • Bitcoin Hard Forks History
  • How-To
    • Install Bitcoin Core
    • Install Bitcoin-Qt Faster
    • Install Electrum Wallet
    • Backup Electrum Wallet
    • Choose Bitcoin Mining Hardware
    • Solo Mine Bitcoin
    • Learn Blockchain Programming
    • Buy Bitcoin >
      • Buy Bitcoin on Coinbase
      • Buy Bitcoin in the U.S.
    • Accelerate Bitcoin Transaction
  • Discuss Bitcoin