Bitcoin: What It Is, How It Works, and Why It Still Matters

When you hear Bitcoin, a decentralized digital currency built on a public ledger called the blockchain. Also known as BTC, it was created in 2009 to let people send money without banks, governments, or middlemen. It’s not just a coin you buy and hold—it’s a network that runs on thousands of computers worldwide, validating transactions and securing value through math, not trust.

Bitcoin’s design forces scarcity: only 21 million will ever exist. That’s why people treat it like digital gold. But it’s not just about holding. Blockchain, the public, tamper-proof record that logs every Bitcoin transaction is what makes it possible. Every time someone sends Bitcoin, that transaction gets bundled into a block, verified by miners, and added to the chain. This system runs without a central boss. No CEO. No board. Just code and consensus.

And it’s not just about price swings. Look at what’s happening behind the scenes. Crypto mining, the process where computers solve complex puzzles to secure the Bitcoin network and earn new coins is under pressure. Countries like Iraq banned it outright. Others, like Bolivia, flipped from prohibition to acceptance. Meanwhile, North Korea’s Lazarus Group uses Bitcoin to launder stolen funds—proving how powerful and hard to control this tech really is.

Even the small details matter. Ever wonder why your Bitcoin transaction takes hours? That’s the Bitcoin mempool, the waiting room where unconfirmed transactions sit before being picked up by miners. When it gets full, fees spike. People pay more to jump the line. It’s a real-time market for speed, not just speculation.

Bitcoin doesn’t need to be the next big thing to still be the most important. It’s the original. The benchmark. The one that forced every other crypto to answer the question: why are you better? You’ll find posts here about scams pretending to be Bitcoin-related, like fake airdrops and sketchy exchanges using its name to trick people. You’ll also see how real Bitcoin infrastructure works—like cross-chain bridges, mempool congestion, and mining bans. This isn’t hype. It’s the messy, real, ongoing story of the first and still most influential cryptocurrency.

How Block Time Affects Transaction Speed in Blockchain Networks
Selene Marwood 21 November 2025 15 Comments

How Block Time Affects Transaction Speed in Blockchain Networks

Block time determines how quickly transactions are confirmed on a blockchain. Bitcoin's 10-minute block time prioritizes security over speed, leading to slower confirmations but strong decentralization. Learn how this affects your transactions and what alternatives exist.