# Background The concept of blockchain was first introduced in the early 1990s as a way to create a secure, decentralized system for recording and verifying transactions. The first blockchain was created in 2008 by an unknown individual or group using the pseudonym "Satoshi Nakamoto" for the digital currency Bitcoin. Since then, blockchain technology has been adopted and developed by a wide range of organizations and industries for a variety of applications, from financial transactions and supply chain management to data storage and secure communication. SatoshiChain is based on the idea of a distributed ledger, which is a record of transactions that is maintained by a network of nodes, rather than a central authority. Each node in the network maintains a copy of the ledger, and new transactions are added to the ledger only after they have been independently verified by multiple nodes. This decentralized structure allows SatoshiChain to be secure, transparent, and resistant to tampering, making them well-suited for use in a variety of applications. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://satoshichain.gitbook.io/satoshi-chain/background.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.