Bitcoin vs. Other Cryptocurrencies – What Makes Bitcoin Unique?

21bitcoin
21bitcoin
17.4.25
15
min read
Share this article
Verschiedene Kryptowährungs-Münzen

1. Introduction: Bitcoin as the First Cryptocurrency

1.1. What Is Bitcoin? – Basics and Origins

Bitcoin is the first and still the most important cryptocurrency in the world. In 2008, a person or group operating under the pseudonym Satoshi Nakamoto published the Bitcoin whitepaper, which introduced the idea of a digital payment system without central control. The first transaction on the Bitcoin blockchain took place on January 3, 2009.

Bitcoin Whitepaper Abstract
Source: bitcoin.org

Unlike traditional currencies controlled by central banks, Bitcoin is based on a blockchain – a decentralized network of thousands of computers (nodes). This infrastructure allows transactions to be carried out securely and transparently, without middlemen. Every transfer is validated by miners, who add new blocks to the blockchain through a proof-of-work (PoW) mechanism. This process, known as mining, secures the network and ensures that no coins are spent twice (double spending).

One of Bitcoin’s key features is its limited supply: a maximum of 21 million coins will ever exist. This artificial scarcity sets Bitcoin apart from traditional currencies and many altcoins, which often have no fixed supply limit. Due to this scarcity, Bitcoin is frequently compared to gold—as a store of value and a hedge against inflation.

2. Technological Differences: Bitcoin vs. Other Cryptocurrencies

2.1. Decentralization – How Independent Is Bitcoin Compared to Altcoins?

Bitcoin is the most decentralized of all cryptocurrencies. The network consists of tens of thousands of nodes worldwide that operate independently and validate every transaction according to the same rules. There is no central authority that can exert control—this is a key difference from many altcoins, where developer teams, foundations, or major investors often have significant influence.

While many altcoins also aim for decentralization, in practice, central control is common. Ethereum, for example, has been using Proof-of-Stake (PoS) since the Merge, where large coin holders can dominate the network. Voting rights are granted in proportion to the number of coins held, giving wealthy actors disproportionate power. Additionally, the Ethereum Foundation plays a key role in the network’s development, which limits its independence.

Bitcoin fundamentally differs due to its Proof-of-Work (PoW) consensus mechanism. Miners around the world compete to validate new blocks, distributing control of the network more evenly. Even though large mining pools exist, the competition remains dynamic, and no single entity can manipulate the network at will. This robust structure makes Bitcoin more resilient to manipulation and attacks.

Thanks to its technological architecture and distributed control, Bitcoin remains the most secure and least manipulable cryptocurrency. While many altcoins have central decision-makers who can influence the protocol, Bitcoin operates on a purely market-based and hard-to-change system.

2.2. Consensus Mechanism – Proof-of-Work vs. Proof-of-Stake

Bitcoin relies on Proof-of-Work (PoW), an energy-intensive but highly secure method of validating transactions. Miners solve complex mathematical problems to add new blocks to the blockchain and secure the network. This mechanism makes Bitcoin highly resistant to manipulation and centralized control.

Many altcoins—such as Ethereum, Cardano, and Algorand—use Proof-of-Stake (PoS), where participants with large coin holdings validate new blocks instead of investing computing power. While PoS is more energy-efficient, it tends to favor wealthy token holders and can lead to centralization of power. Many Web3 projects choose PoS to achieve greater scalability and lower costs.

2.3. Bitcoin Mining vs. Other Coins

Bitcoin generates new coins exclusively through mining. Miners use specialized computers (ASICs) to solve complex math problems and discover new blocks. For each valid block, they receive a fixed number of new bitcoins (currently 3.125 BTC per block). This ensures that new bitcoins are introduced into circulation on a fixed, predictable schedule until the supply cap of nearly 21 million BTC is reached.

In many other cryptocurrencies, there is no mining in the traditional sense. Instead, new coins are generated through staking existing tokens. Participants lock up large amounts of coins as collateral to validate transactions and create new blocks. The more coins a validator holds, the higher their chances of receiving rewards.

Some altcoins use alternative mechanisms like Delegated Proof-of-Stake (DPoS) or hybrid systems, where a limited number of validators or nodes generate new coins. Unlike Bitcoin—where mining fosters open competition—these models often concentrate coin creation in the hands of a few players.

2.4. Transaction Speed – Bitcoin vs. Faster Blockchains

Bitcoin processes an average of 7 transactions per second (TPS)—significantly fewer than many altcoins and smart contract platforms like Ethereum. This is due to Bitcoin’s deliberately conservative design, which prioritizes security and decentralization.

Modern blockchains like Solana or Avalanche can handle thousands of TPS, often through more centralized structures. Ethereum has also improved scalability through upgrades.

Bitcoin addresses the scaling challenge differently: second-layer solutions like the Lightning Network enable fast and low-cost transactions without compromising the security of the main blockchain. While many altcoins prioritize speed over security, Bitcoin remains the most decentralized and secure network—optimized for long-term value rather than short-term trading.

2.5. Network Security – Why Bitcoin Is Considered the Most Secure Crypto Network

Bitcoin is regarded as the most secure blockchain network because it uses Proof-of-Work (PoW) and requires massive computing power to validate transactions. Its decentralized architecture—featuring thousands of nodes and miners worldwide—makes attacks virtually impossible. Thanks to the high energy requirements and decentralized mining, Bitcoin is highly resistant to manipulation.

Once three additional blocks have been mined after a valid transaction, that transaction is effectively irreversible.

Many altcoins, including Ethereum since switching to Proof-of-Stake (PoS), rely on alternative security models. However, PoS systems carry a risk of centralization, as large coin holders can exert considerable influence over the network.

3. Economic Differences: The Value Proposition of Bitcoin vs. Altcoins

3.1. Limited Supply vs. Inflation – Why Bitcoin Has a Cap of 21 Million Coins

Bitcoin has a hard cap of 21 million coins. This limited supply prevents inflation—unlike fiat currencies or many altcoins, which can increase their supply dynamically.

Because of this scarcity, Bitcoin is increasingly being used as a hedge against fiat currency devaluation in many parts of the world. In countries like Argentina, Turkey, and many African nations, annual inflation rates have often been in the double digits in recent years. This means that citizens who save in their national currencies lose significant purchasing power each year. In these regions, Bitcoin is already being used as a solution by people looking to preserve their wealth.

New bitcoins are created through mining, but every four years, the block reward is halved. This process, known as the Halving, gradually reduces the issuance rate—making Bitcoin increasingly scarce over time, similar to gold. In contrast, Ethereum has no fixed supply limit and adjusts its token issuance via mechanisms like token burns.

Bitcoin Halving Diagramm
Quelle: cvj.ch

While many blockchains apply flexible monetary policies, Bitcoin remains a preferred asset for long-term value storage due to its stable network and predictable issuance schedule.

3.2. Volatility and Market Trends – Is Bitcoin More Stable Than Other Cryptocurrencies?

Bitcoin is known for its price swings, but compared to most altcoins, it shows greater stability. Its large market capitalization, widespread adoption, and strong network make it more resilient to speculation than smaller cryptocurrencies.

While altcoins are often highly volatile, Bitcoin is increasingly being used as a long-term store of value. Even Ethereum—the leading smart contract platform—experiences sharper price fluctuations driven by technological changes and shifting market sentiment.

It’s also evident that the entire crypto market still heavily depends on Bitcoin’s four-year halving cycles. Although Bitcoin remains volatile, its growing adoption and rising institutional investment are contributing to increased stability. This makes it more attractive for investors seeking a digital alternative to gold.

3.3. Adoption and Global Reach – Why Bitcoin Leads Worldwide

Bitcoin is the most widely adopted cryptocurrency in the world. It is used in multiple countries as a means of payment, a store of value, and an investment class. With a robust network and a market cap surpassing all other altcoins, Bitcoin remains the leading digital asset. Institutional investors, corporations, and even nation-states—such as El Salvador—have embraced Bitcoin as either a store of value or a payment method.

A major milestone in Bitcoin’s adoption was the approval of the first spot Bitcoin ETFs in the U.S. in January 2024. These funds allow both institutional and retail investors to gain exposure to Bitcoin’s price without the need to hold BTC directly. Thanks to this regulatory breakthrough, billions in capital have flowed into Bitcoin, further strengthening its status as a recognized investment asset.

Bitcoin also played a growing role in the 2024 U.S. presidential elections. Candidates began taking public positions on crypto regulation, as Bitcoin holders emerged as an increasingly influential voting bloc. Pro-Bitcoin stances could influence voter decisions, especially among economically libertarian circles. Several U.S. states have even explored the idea of establishing Bitcoin reserves.

US-Karte mit Bundesstaaten, die ein Gesetz zu einer strategischen Bitcoin Reserve haben
Source: bitcoinlaws.io, as of 3 April 2025

All of this shows that Bitcoin has evolved far beyond its technological roots—it has become a central topic in both politics and economics.

4. Use Cases: Bitcoin vs. Other Cryptocurrencies

4.1. Bitcoin as a Payment Method vs. Smart Contract Platforms (Ethereum & Co.)

Bitcoin was developed as decentralized digital money, enabling secure transactions without intermediaries. However, due to its relatively low transaction speed and high fees, many people use Bitcoin more as “digital gold” than for everyday payments. That said, solutions like the Lightning Network improve scalability and enable instant, low-cost transactions—making Bitcoin more appealing as a payment method.

While Bitcoin focuses on security, decentralization, and long-term value storage, smart contract blockchains like Ethereum offer more flexibility, but also come with greater risks—such as vulnerabilities to hacks and technical exploits.

In regions with high inflation or limited access to banking services, Bitcoin remains a vital tool for conducting everyday transactions and preserving value.

4.2. Bitcoin and Stablecoins – Competitors or Complements?

Bitcoin and stablecoins serve different purposes within the crypto ecosystem. While Bitcoin acts as digital gold with a fixed supply of 21 million coins, stablecoins like USDT or USDC are pegged to fiat currencies like the U.S. dollar. These tokens enable fast, price-stable transactions and are widely used in trading, DeFi applications, and cross-border payments.

A key distinction lies in decentralization: Bitcoin is completely independent of any central authority, whereas most stablecoins are issued and controlled by private companies such as Tether or Circle. Still, the two complement each other—stablecoins offer price stability for short-term transactions, while Bitcoin serves as a long-term store of value.

4.3. Bitcoin vs. Ethereum

Bitcoin and Ethereum are the two largest cryptocurrencies but serve fundamentally different purposes. Bitcoin was designed as a decentralized and scarce form of digital money and currently functions primarily as a store of value—often referred to as “digital gold.” It emphasizes maximum security, decentralization, and a predictable monetary policy with a hard cap of 21 million coins.

Ethereum, on the other hand, is a smart contract platform that powers decentralized applications (dApps). Since transitioning to Proof of Stake, Ethereum has diverged from Bitcoin in terms of network structure—aiming for more efficient transaction processing, but at the cost of potential centralization risks. While Bitcoin is seen as a long-term store of value, Ethereum serves as a dynamic platform for a wide range of projects within the crypto ecosystem.