SoloLuck
What Ethereum Is, and How It Differs From Bitcoin
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SoloLuck Blog · 2026-06-30
The Short Answer: Two Blockchains, Two Different Goals
Bitcoin and Ethereum are both blockchains, but they were built to solve very different problems. Bitcoin was designed as a peer-to-peer form of money — a way to send value from one person to another without a bank in the middle. Ethereum was designed as something broader: a programmable platform where developers can build and run applications directly on a blockchain.
Think of Bitcoin as a very reliable, very secure calculator that does one thing extremely well — move money. Ethereum is more like a smartphone: it can run apps, enforce agreements automatically, and support entirely new kinds of services. Neither goal is better than the other; they are just aimed at different things.
What Makes Ethereum "Programmable"?
The key ingredient is something called a smart contract. A smart contract is a piece of code stored on the Ethereum blockchain that runs automatically when certain conditions are met — no middleman, no manual approval needed. For example, a smart contract could release payment the moment a delivery is confirmed, or issue a token when someone meets a requirement, all without anyone pressing a button.
These contracts run inside the Ethereum Virtual Machine (EVM), a computing environment built into every Ethereum node. The EVM can execute complex logic, which is what makes Ethereum general-purpose in a way Bitcoin is not. Bitcoin does have a scripting language, but it is intentionally simple and limited — a deliberate design choice to keep the network secure and predictable.
Smart contracts power a wide range of applications that have been built on Ethereum, including:
- Decentralized exchanges and lending platforms (often called DeFi, or decentralized finance)
- Non-fungible tokens (NFTs) for digital ownership
- Token issuance for new projects
- Decentralized autonomous organizations (DAOs)
It is worth noting that because Ethereum is an open platform, anyone can deploy a smart contract — including people with bad intentions. Not every project built on Ethereum is legitimate. As with anything in crypto, caution and research matter.
Ethereum's Native Currency: Ether (ETH)
Ethereum has its own currency called Ether, commonly abbreviated as ETH. It is worth clarifying a common point of confusion: Ethereum is the network, while ETH is the token that runs on it. People often use the names interchangeably, but they are not quite the same thing.
ETH has two main roles. First, it is used to pay transaction fees — called gas fees — whenever someone interacts with a smart contract or sends a transaction on the network. Second, like Bitcoin, ETH can be held or transferred as a store of value or medium of exchange.
One important difference from Bitcoin: Ether does not have a fixed maximum supply. Bitcoin is capped at 21 million coins by its protocol. ETH has no such hard cap, though Ethereum does have a fee-burning mechanism that can reduce the amount of ETH in circulation over time. Whether that mechanism makes ETH deflationary in practice depends on how much activity the network sees — it is not guaranteed.
How Ethereum Secures Its Network: Proof-of-Stake
This is one of the most important facts to get right: Ethereum does not use mining. It used to — but that changed permanently on September 15, 2022, in an event the Ethereum community called "The Merge."
Before The Merge, Ethereum used the same approach as Bitcoin: proof-of-work, where miners compete using computing power to add new blocks. After The Merge, Ethereum switched to proof-of-stake, a completely different system. Mining on Ethereum ended the moment The Merge completed, and there is no planned return to proof-of-work.
Here is how proof-of-stake works on Ethereum:
- Instead of miners, the network relies on validators — participants who lock up ("stake") ETH as collateral to earn the right to propose and confirm new blocks.
- To run your own validator node, you must stake a minimum of 32 ETH. Staking pools exist for those who cannot meet that threshold, allowing participation with smaller amounts.
- Validators are selected to propose blocks based on a combination of their stake and a randomisation process — not by raw computing power.
- If a validator acts dishonestly, they face slashing — a penalty that can destroy part or all of their staked ETH, removing them from the network.
The energy impact was dramatic. The switch reduced Ethereum's energy consumption by roughly 99.95% compared to its proof-of-work era. Proof-of-stake is not without critics, though: some argue that large ETH holders naturally gain more influence, raising questions about long-term centralisation. That is a genuine, open debate worth knowing about.
Bitcoin vs. Ethereum: A Side-by-Side Comparison
Here is a plain-language summary of the key differences:
- Primary goal: Bitcoin aims to be decentralized, peer-to-peer digital money. Ethereum aims to be a programmable platform for decentralized applications.
- Consensus mechanism: Bitcoin uses proof-of-work (mining). Ethereum uses proof-of-stake (validators).
- Smart contracts: Ethereum is designed for complex smart contracts. Bitcoin has very limited scripting and is not optimised for it.
- Supply cap: Bitcoin has a hard cap of 21 million coins. Ether has no fixed cap, though a burn mechanism can reduce supply.
- Block time: Bitcoin produces a new block roughly every 10 minutes. Ethereum produces one approximately every 12 seconds.
- Native token: Bitcoin's is BTC. Ethereum's is ETH (ether).
Both networks are decentralized, open-source, and public — anyone can use or inspect them. Their differences are a matter of design philosophy, not quality. They are solving different problems.
What Ethereum Is Not
A few common misconceptions are worth clearing up directly:
- Ethereum is not Bitcoin with extra features. It is a separate blockchain with a separate history, separate code, and a separate token. The two networks do not share infrastructure.
- "Blockchain" is not a synonym for Bitcoin or Ethereum. A blockchain is a type of data structure. Many blockchains exist; Bitcoin and Ethereum are just two well-known examples.
- Ethereum cannot be mined. As of September 2022, Ethereum runs on proof-of-stake. If someone is advertising Ethereum cloud mining contracts, that is a red flag.
- Smart contracts are not foolproof. The code is only as good as the people who wrote it. Bugs in smart contracts have led to significant losses in the past. "It runs on a blockchain" does not mean it is safe.
- ETH is not a stablecoin. Its value fluctuates, sometimes dramatically. It carries real financial risk.
FAQ
Is Ethereum the same as Bitcoin?
No. Bitcoin and Ethereum are two separate blockchains with different goals, different tokens, and different rules. Bitcoin was built as decentralized digital money. Ethereum was built as a programmable platform for running applications and smart contracts. They share some broad similarities — both are decentralized and public — but they are not versions of the same thing.
Does Ethereum still use mining?
No. Ethereum permanently ended mining on September 15, 2022, in an event called The Merge. It switched from proof-of-work (mining) to proof-of-stake, where validators who lock up ETH as collateral confirm transactions. If you see anyone advertising Ethereum mining services or hardware today, treat it as a serious warning sign.
What is ETH used for?
ETH is Ethereum's native token. It is used primarily to pay transaction fees (called gas fees) whenever you interact with the Ethereum network — for example, when using a decentralized application or sending a token. It can also be held or transferred like other cryptocurrencies, and it is used as collateral by validators who help secure the network.
Is Ethereum safe to use?
The Ethereum network itself has a strong security record, but that does not mean everything built on top of it is safe. Smart contracts can contain bugs or be deliberately designed to steal funds. Scam projects, rug pulls, and fraudulent tokens exist in large numbers on Ethereum because anyone can deploy a contract. Research every project carefully before interacting with it or sending money.
Can you explain proof-of-stake in plain English?
In proof-of-stake, people who want to help run the network put up a deposit of ETH as a form of collateral. They are called validators. The network then selects validators to confirm transactions and add new blocks. If a validator behaves honestly, they earn a small reward. If they cheat or act against the rules, the network destroys part of their deposit — a penalty called slashing. The key difference from Bitcoin's proof-of-work is that no energy-intensive computing competition is required; the stake itself is what keeps participants honest.
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