What is Bitcoin and how does it work?
Bitcoin is a decentralized blockchain network that records and verifies peer-to-peer value transfers on a public ledger maintained by thousands of distributed computers. In simple terms, it’s a shared record book that anyone can inspect, and no single company controls.
Launched in 2009 by an anonymous creator using the pseudonym Satoshi Nakamoto, Bitcoin introduced a way to move value online without relying on a central authority to approve every transaction. The network’s native currency, BTC, can be sent, received, and held.
What Bitcoin (BTC) was built to do
BTC was designed as peer-to-peer digital cash. Over time, it has also become associated with the concept of a digital store of value, largely due to its supply rules. Bitcoin’s protocol enforces a maximum supply of 21 million coins, making it a verifiably scarce asset.
How Bitcoin transactions work
When a user sends BTC, the transaction is broadcast across the Bitcoin network. Miners collect pending transactions into blocks. Once a block is appended to the blockchain, the transfer is recorded permanently, and subsequent blocks continue building on top.
Proof of Work (PoW) explained
Bitcoin uses a consensus mechanism called Proof of Work. Miners race to solve computationally intensive puzzles in order to add new blocks and help validate transactions. The winner earns the right to propose the next block and receive the associated reward. This mechanism protects the ledger from tampering and explains why energy consumption is a frequent topic in PoW discussions.
Common Bitcoin use cases
People use Bitcoin in a variety of ways depending on their goals and regional availability. Common examples include:
- Holding BTC as a digital asset
- Transferring value across borders
- Making payments where BTC is accepted
Some platforms, including the Crypto.com App, may offer additional features such as BTC price tracking and alerts (availability can vary by region).
What is Ethereum and how does it work?
Ethereum is a decentralized blockchain network that not only records transactions but also runs programmable applications on a public ledger maintained by many computers. In other words, it’s a shared system where code executes exactly as written, without centralized control.
Ethereum launched in 2015 and is closely associated with co-founder Vitalik Buterin. Its native cryptocurrency, Ether (ETH), is used to pay for network activity and can also be sent, received, and held.
What Ethereum (ETH) was built to do
ETH is the fuel for the Ethereum network. It pays for operations like sending ETH or interacting with smart contracts that power tokens and decentralized applications. Validators also commit ETH as a security deposit to participate in Ethereum’s Proof of Stake consensus, validating blocks and helping secure the network.
Proof of Stake (PoS) explained
Ethereum uses Proof of Stake, where validators help verify transactions and propose new blocks by staking ETH. Validators that follow the rules can earn rewards; those that don’t can be penalized. Known as “The Merge,” Ethereum’s transition from Proof of Work (mining) to Proof of Stake (validation) replaced energy-intensive computing competitions with validator-driven block proposals and attestations. This shift changed how the network is secured and dramatically reduced energy use, while retaining Ethereum’s complete transaction history.
Smart contracts and decentralized apps
Smart contracts are self-executing programs stored on the blockchain that run when predefined conditions are met. This capability supports a vast ecosystem, including DeFi tools, NFTs, DAOs, and other dApps. The cost of using these applications varies with network demand.
Bitcoin/BTC vs Ethereum/ETH: What are the differences?
Feature | Bitcoin/BTC | Ethereum/ETH |
Network (blockchain) | Bitcoin network | Ethereum network |
Year launched | 2009 | 2015 |
Associated creator | Satoshi Nakamoto (pseudonym) | Vitalik Buterin (co-founder) |
What the network was built for | Peer-to-peer value transfer on a public ledger | Programmable smart contracts and decentralized applications |
Consensus mechanism | Proof of Work (PoW) | Proof of Stake (PoS) (after The Merge) |
Typical block time | ~10 minutes (can vary) | ~12 seconds (can vary) |
Programmability | Limited scripting | Smart contracts |
Common ecosystem use | Payments and value transfer; store-of-value use cases | dApps such as DeFi, NFTs, and other smart contract-based tools |
Ticker | BTC | ETH |
Supply design | Capped at 21 million BTC | No fixed maximum supply for ETH |
What the coin is used for | Sending, receiving and holding BTC on the network | Paying for network activity (gas), sending/holding ETH and supporting PoS validation |
Energy profile (high level) | Higher (PoW mining is resource-intensive) | Lower after The Merge (PoS removed mining) |
Purpose and design
Bitcoin is engineered to do a limited set of things reliably—mainly recording BTC transactions on a slowly evolving public ledger. Ethereum is built for greater programmability by supporting smart contracts, enabling developers to create tokens, financial instruments, and apps that run on the blockchain. Both ecosystems have also developed scaling approaches: Bitcoin is frequently paired with the Lightning Network, while Ethereum has Layer-2 networks designed to boost throughput and reduce costs.
Consensus mechanism
This is where Proof of Work meets Proof of Stake. Bitcoin’s PoW depends on miners and computational power, while Ethereum’s PoS relies on validators who lock ETH to participate in block validation. These models differ in hardware requirements, incentive structures, and energy profiles.
Supply and tokenomics
Bitcoin’s supply is capped, and the inflow of new BTC slows over time through scheduled “halving” events. Ethereum has no fixed maximum supply; its issuance follows protocol rules and network activity, including the fee-burning mechanism introduced in EIP-1559. Many frame the contrast as scarcity versus utility—a helpful lens, though not one that eliminates market risk.
Transaction speed and costs
Bitcoin and Ethereum confirm blocks on different cadences, affecting on-chain settlement. The classic comparison is roughly 10 minutes for Bitcoin versus 12 seconds for Ethereum, though real-world experiences depend on network congestion. Fees differ too: Ethereum uses “gas,” while Bitcoin uses transaction fees, both fluctuating with demand. Layer-2 tools can also influence final cost and speed.
Blockchain technology
Under the hood, Bitcoin uses an unspent transaction output (UTXO) model to track spendable outputs, while Ethereum employs an account-based model tracking balances and smart contract states. This account structure is one reason Ethereum is so pervasive in smart contracts and dApps, whereas Bitcoin remains centered on value transfer.
Market position and outlook
Bitcoin is widely considered the benchmark crypto asset—it was first and maintains the broadest holder base. Ethereum is increasingly viewed as a platform layer, thanks to its programmability and developer ecosystem. Many regard them as complementary rather than direct competitors.
How to buy Bitcoin (BTC) and Ethereum (ETH) in 5 steps
- Choose a crypto platform
- Create and verify your account
- Add funds to your account
- Search and buy BTC/ETH
- Keep track of your portfolio
1. Choose a crypto platform
Your first move is picking a platform where you can purchase BTC and ETH. Look for clear fee disclosures, support for your desired assets, and robust account security features. Review the platform’s regional availability, limits, and disclosures. The Crypto.com App is used by over 150 million people worldwide and offers an intuitive interface, zero-fee fiat deposits*, and multiple payment methods, making it suitable for newcomers while still serving experienced investors.
2. Create and verify your account
You’ll need to open an account by providing your name, email address, and other basic details. To comply with regulations and protect your account, most platforms then require identity verification. This step usually involves uploading a government-issued ID, and sometimes a selfie for facial matching. Completion of this process removes restrictions on depositing funds and trading.
3. Add funds to your account
Platforms like Crypto.com support several deposit methods, including bank transfers, debit cards, and credit cards. Some may also offer PayPal or wire transfers. Choose the method that best fits your needs, taking into account processing times and any applicable fees.
4. Search and buy BTC/ETH
Once funded, simply search for BTC and ETH on the platform and enter the amount you want to purchase. Most platforms allow fractional purchases, so you can start with whatever amount you’re comfortable investing. Always double-check the transaction details—including the quantity of BTC/ETH you’ll receive and any associated fees—before confirming.
5. Keep track of your portfolio
Once you own crypto, monitoring your holdings is essential. You can track BTC and ETH prices directly in the Crypto.com App or through market tracking websites. Staying informed about network upgrades, market news, and price moves can help you manage your portfolio over time.
FAQs about Bitcoin vs Ethereum
What’s the difference between Bitcoin and Ethereum?
Bitcoin is a blockchain built primarily to record and verify BTC transfers, with limited programmability. Ethereum is a blockchain designed to run smart contracts and decentralized applications. On the token side, BTC has a capped supply, while ETH is used for network activity and has no fixed maximum supply.
Is Ethereum better than Bitcoin?
It depends on what you’re trying to achieve. Bitcoin focuses on value transfer and scarcity; Ethereum emphasizes programmability and on-chain applications.
Can you use Bitcoin and Ethereum for payments?
Both BTC and ETH can transfer value. In practice, usefulness depends on merchant acceptance, network fees, confirmation times, and the tools you choose.
Which is faster – Bitcoin or Ethereum?
Ethereum generally has shorter base-layer block times than Bitcoin, but actual transaction speed can vary based on network demand and fee settings.
Can you buy both BTC and ETH on Crypto.com?
Yes, Crypto.com offers access to BTC, ETH, and over 400 other cryptocurrencies.
What gives Bitcoin and Ethereum their value?
Bitcoin’s value is often attributed to scarcity and network effects, while Ethereum’s value tends to come from demand for its smart contract and application ecosystem. These are helpful frameworks, but they aren’t guarantees of future value.