Summarize the following text explaining the concept of blockchain technology into a brief paragraph:

A blockchain is a decentralized, distributed digital ledger that records transactions across many computers in a network in a secure and permanent way. Each block in the chain contains transaction data, a timestamp, and a cryptographic hash linking it to the previous block, forming an immutable chain. Blockchains are maintained by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once data is recorded in the blockchain, it cannot be altered or deleted without consensus from the network majority. This makes blockchains resistant to data modification and helps establish trust without a central authority. The technology underlying blockchain enables secure, transparent record-keeping and transfer of value, with applications beyond cryptocurrencies, including smart contracts, supply chain tracking, voting systems, and more.
Summarize the following text explaining the concept of blockchain technology into a brief paragraph:

A blockchain is a decentralized, distributed digital ledger that records transactions across many computers in a network in a secure and permanent way. Each block in the chain contains transaction data, a timestamp, and a cryptographic hash linking it to the previous block, forming an immutable chain. Blockchains are maintained by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once data is recorded in the blockchain, it cannot be altered or deleted without consensus from the network majority. This makes blockchains resistant to data modification and helps establish trust without a central authority. The technology underlying blockchain enables secure, transparent record-keeping and transfer of value, with applications beyond cryptocurrencies, including smart contracts, supply chain tracking, voting systems, and more.
user
Blockchain is a decentralized, tamper-resistant digital ledger that chronologically records transactions across a network of computers in a secure and permanent manner through cryptographic hashing, eliminating the need for a central authority. This technology enables transparent record-keeping and secure value transfer, with potential applications extending beyond cryptocurrencies to areas like smart contracts and supply chain management.
assistant
Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Condense the following piece of history into one or two sentences for me:

Before 1895, the area corresponding to modern-day South Gyeongsang Province was part of Gyeongsang Province, one of the Eight Provinces of Korea during the Joseon dynastic kingdom. In 1895, southern Gyeongsang was replaced by the districts of Jinju in the west and Dongnae (modern-day Busan) in the east. In 1896, they were merged to form South Gyeongsang Province.

The provincial capital was originally at Jinju; it moved in 1925 to Busan.During the Japanese rule of Korea, the province was known as Keishōnan-dō. In 1948, South Gyeongsang Province became part of South Korea. In 1963, Busan separated from South Gyeongsang Province to become a Directly Governed City (Jikhalsi). In 1983, the provincial capital moved from Busan to Changwon.
Response: Modern-day South Gyeongsang Province used to be part of Gyeongsang Province until 1895, with its current provincial capital being Changwon after changing twice. 

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
