[
{
"id": "bitcoin-test-keyword-1",
"title": "Introduction to Bitcoin",
"content": "Bitcoin is a decentralized digital currency that was created in 2009. It operates without a central authority or banks, and transactions are verified by network nodes through cryptography. The pioneering cryptocurrency uses a technology called blockchain to maintain a distributed ledger of all transactions.",
"source": "keyword-test"
},
{
"id": "bitcoin-test-keyword-2",
"title": "What is Blockchain?",
"content": "Blockchain is the underlying technology behind Bitcoin and other cryptocurrencies. It is a distributed database or ledger that is shared among the nodes of a computer network. As a database, a blockchain stores information electronically in digital format. Blockchains are best known for their crucial role in cryptocurrency systems for maintaining a secure and decentralized record of transactions.",
"source": "keyword-test"
},
{
"id": "bitcoin-test-keyword-3",
"title": "Mining and Proof of Work",
"content": "Bitcoin mining is the process by which new bitcoins are entered into circulation. It is also the way the network confirms new transactions and is a critical component of the blockchain ledger's maintenance and development. 'Mining' is performed using sophisticated hardware that solves an extremely complex computational math problem. The first computer to find the solution to the problem receives the next block of bitcoins and the process begins again. This process is known as Proof of Work.",
"source": "keyword-test"
}
]