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Bitcoin Basics
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Written by Shudu
Updated over a week ago

Overview

Bitcoin is a decentralized digital currency that operates on a peer-to-peer network, maintained by miners who validate transactions and secure the network. Understanding the foundational elements of Bitcoin is crucial for users, especially in relation to transactions involving Ordinals and RUNES.

Key Concepts

Blockchain and Mining

  • Bitcoin operates on a decentralized ledger known as the blockchain.

  • Miners compete to solve cryptographic puzzles. The first miner to solve the puzzle adds a new block to the blockchain, which includes a list of recent transactions.

  • Miners are rewarded with newly created bitcoins and transaction fees paid by users of the network.

Block Time

  • Bitcoin has an average block time of approximately 10 minutes. This means that new blocks, which confirm transactions, are added to the blockchain at regular 10-minute intervals.

  • For time-sensitive transactions, such as Ordinals lending or transfers, the block time plays a significant role in determining how quickly a transaction can be confirmed on-chain.

Transaction Fees

  • Users must pay transaction fees to have their transactions included in a block.

  • Fees are influenced by several factors:

- Transaction Size: Larger transactions that include more inputs and outputs require more data, which increases the fee.

- Network Congestion: When the network experiences high demand (e.g., during market volatility or the launch of new Ordinal Collection or Runes Tokens), users may need to offer higher fees to have their transactions prioritized by miners.

- Dynamic Fee Markets: The Bitcoin network uses a dynamic fee market where fees fluctuate based on the number of unconfirmed transactions in the mempool. Higher fees push transactions to be confirmed faster, while lower-fee transactions may experience delays.

Transaction Fee Mechanisms

Replace-By-Fee (RBF)

  • RBF allows users to replace an unconfirmed transaction with a new one that pays a higher fee, ensuring quicker confirmation.

  • RBF is particularly useful for time-sensitive transactions, such as collateral transfers in lending, where quick confirmations are essential.

Child-Pays-For-Parent (CPFP)

  • CPFP is a mechanism where a new transaction (the "child") is created that spends an output from an unconfirmed transaction (the "parent").

  • If the child transaction includes a higher fee, it incentivizes miners to include both the child and parent transactions in the next block. CPFP is beneficial when a user cannot modify the original transaction but needs faster confirmation.

Conclusion

Bitcoin's foundational elements, including block time, transaction fees, and its underlying blockchain technology, are crucial for users engaging in complex transactions like Ordinals and RUNES. By understanding these basics, users can navigate the Bitcoin network more effectively and optimize their transaction strategies to ensure timely and secure confirmations.

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