The Bitcoin white paper was published on October 31, 2008 on the cryptography mailing list. The software later went live on January 9, 2009. 

The Ethereum white paper was published in late 2013 and the software went live in July 2015.

 

In 2022, the network completed an extensive overhaul of its software that saw it transition to a new Proof of Stake blockchain. This upgrade lays the foundation for new scalability and technical improvements in the future.

Bitcoin was created by a pseudonymous individual or group under the name Satoshi Nakamoto. To this day, Bitcoin’s creator remains unknown. 

Ethereum was created by 19-year-old Vitalik Buterin (with many others contributing to its code).

 

Buterin was previously a founder at the publication Bitcoin Magazine and a 2014 Thiel Fellow. 

BTC (Note: You may see BTC appear as XBT on other platforms)

ETH (Note: ETC is an earlier version of the Ethereum software, now managed separately). 

Bitcoin is an open-source software that allows its global user base to manage a digital money supply outside the control of any government or central bank.

 

It was created in response to the 2008 global economic crisis as a means to combat inflation. In fact, the first mined block contained the message: “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks,” a message many believe signifies the project’s revolutionary intent.

 

The Bitcoin software enables the computers running it to manage a ledger (the blockchain) that accounts for all transactions made using its currency (BTC) by enforcing a variety of rules.

 

The Bitcoin blockchain is a full record of the network’s transaction history validated by nodes, or individuals running its software. This ensures that each BTC cannot be copied or modified, and that bitcoins cannot be created or used in a way that is against its rules.

 

Bitcoins are scarce, divisible and transferable, making them a valuable alternative money.
 

Ethereum was created with the intention of becoming a global, open-source platform for custom assets and new kinds of economic applications. 

 

Ethereum leverages blockchain technology to decentralize products and services in a wide range of use cases beyond money.

 

To date, Ethereum has seen a few distinct phases that have emphasized different aspects of its capabilities.

 

First, entrepreneurs flocked to Ethereum in 2017 during its famous “ICO boom”, where creators tried to raise money for new projects by selling newly minted assets built on top of the Ethereum blockchain. During this time, Ethereum was seen as something of a global capital allocator and funding mechanism.

 

An emergent sector of Ethereum, called decentralized finance (DeFi), has continued to garner attention since its debut in 2020. This movement saw the creation of decentralized applications (dApps) intended to automate financial services like lending or borrowing without the need for a traditional bank or intermediary.

Bitcoin’s white paper, titled “Bitcoin: A Peer-to-Peer Electronic Cash System” , was released by Satoshi Nakamoto in 2008.

 

The first 50 bitcoins were mined upon the release of the software, enabling a decentralized network of computers to run a digital economy that is still thriving today. 

 

Satoshi famously left the project in 2011 and hasn’t been heard of since, though you can find out more about his (or her) attitudes toward the technology in various emails and forum posts. 

 

Since then, hundreds of developers have contributed to improving Bitcoin’s code, whether it is routine bug fixes or great, efficiency driven, improvements.

Vitalik Buterin envisioned Ethereum as a “world computer” on which anyone could launch and run an application. 

 

This idea was propelled forward by a non-profit, the Ethereum Foundation, which sold 72 million ETH, Ethereum’s cryptocurrency, in a crowdsale, to raise $18 million at the time. 

 

However, what would distinguish Ethereum early on was the vibrant developer community that would soon spin up around the project. 

 

Meaningful contributions to its technology would be made by developers like Gavin Wood, Jeff Wilke, Joseph Lubin and Charles Hoskinson, who all would go on to become prominent voices in the blockchain ecosystem. 

Central to Bitcoin's design is the ability for two users to send each other BTC from anywhere around the world, without the need for an intermediary. 

 

In order to keep its network secure and decentralized, while regulating the supply of new money that gets released into its economy, Bitcoin uses a process called “mining”.

 

In this system, called Proof of Work (PoW), miners race to complete cryptographic puzzles to propose blocks that make up the Bitcoin blockchain. 

 

When a block is discovered by a miner, it is announced to the network, and, when it's verified by every node, the miner gets compensated in newly minted BTC. 
 

In order to create dapps, developers write programs, called smart contracts, and deploy this code to the Ethereum blockchain. These dapps are essentially large constructions of smart contracts that can be set in motion if and when specific outcomes are met.

 

Following The Merge update in 2022, Ethereum now uses the Proof of Stake (PoS) consensus mechanism to power its blockchain. 

 

Under this model, any user who owns a minimum of 32 ETH can lock those funds in a contract and earn rewards for helping to add new blocks of data to the blockchain.

 

Of note: Participants wishing to stake less than 32 ETH can do so using liquid staking protocols and earn a portion of the staking rewards.

One of the biggest value propositions of Bitcoin is its monetary policy – only 21 million BTC will ever be introduced into the network's economy. 

 

When the first block was mined in 2009, 50 BTC were released, a block reward that is cut in half roughly every four years. This event is known as the halving, or halvening. 

 

Through this process, more than 19.8 million BTC have been made available as of 2025. The last bitcoin is projected to be mined in 2140.

Ether (ETH) is the main cryptocurrency powering Ethereum. Since the network's transition to Proof of Stake, new ETH is issued as rewards to validators rather than miners. 

 

However, where Bitcoin has a limited supply, Ethereum does not place a limit on the amount of ETH that can be minted. Following the release of EIP 1559, a fixed amount of every ETH transaction fee is now permanently destroyed, or "burned". The burn rate fluctuates based on network activity and may help to reign in Ethereum's unbounded token supply over time.

 

Notably, changes to the monetary policy are proposed by developers and voted on by nodes and validators running the software.