- Pay to Script Hash (P2SH): This feature allows the transaction recipient to be an address that satisfies a specific script. It is designed to facilitate implementations such as multi-signature wallets.
- Bitcoin Halving: An event that occurs approximately every four years, halving the reward for newly mined bitcoins. This limits the increase in supply and emphasizes the currency’s deflationary nature.
- Merkle Tree: A data structure used to efficiently verify and organize transactions within a block.
- Bloom Filters: A technology that allows lightweight clients to retrieve only the data they need. This enables them to verify transactions without running as a full node.
- Early Bitcoin Adopters: People who recognized Bitcoin’s value and potential from the very beginning. Some of them are believed to hold large amounts of Bitcoin.
- Bitcoin Transaction Pool: A place where unconfirmed transactions are temporarily held. Miners select transactions from here and add them to blocks.
- Bitcoin Whitelists and Blacklists: Some services and exchanges may restrict transactions from specific addresses. This is often done as part of efforts to prevent fraud or comply with regulations.
- Bitcoin and Quantum Computers: It has been pointed out that the evolution of quantum computers could pose a threat to Bitcoin’s cryptography. However, it is expected that appropriate updates and countermeasures will be developed.
- Bitcoin’s UTXO (Unspent Transaction Output): Due to the way Bitcoin transactions are structured, funds are managed as “unspent transaction outputs” rather than as a “balance” of coins.
- Bitcoin “Lost Coins”: Bitcoin that has become inaccessible due to the loss of private keys or data. These coins are highly likely to remain unused forever.
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