All Major Bitcoin Forks Shown With a Subway-Style Map
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Mapping the Major Bitcoin Forks

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Mapping Out the Major Bitcoin Forks

Mapping the Major Bitcoin Forks

The emergence of Bitcoin took the world by storm through its simplicity and innovation. Yet, plenty of confusion remains around the term itself.

The Bitcoin blockchain—not to be confused with the bitcoin cryptocurrency—involves a vast global network of computers operating on the same distributed database to process massive volumes of data every second.

These transactions tell the network how to alter this distributed database in real-time, which makes it crucial for everyone to agree on how these changes should be applied. When the community can’t come to a mutual agreement on what changes, or when such rule changes should take effect, it results in a blockchain fork.

Today’s unique subway-style map by Bitcoin Magazine shows the dramatic and major forks that have occurred for Bitcoin. But what exactly is a Blockchain fork?

Types of Blockchain Forks

Forks are common practice in the software industry and happen for one of two reasons:

  • Split consensus within the community
    These forks are generally disregarded by the community because they are temporary, except in extreme cases. The longer of the two chains is used to continue building the blockchain.
  • Changes to the underlying rules of the blockchain
    A permanent fork which requires an upgrade to the current software in order to continue participating in the network.

There are four major types of forks that can occur:

1. Soft Forks

Soft forks are like gradual software upgrades—bug fixes, security checks, and new features—for those that upgrade right away.

These forks are “backwards compatible” with the older software; users who haven’t upgraded still have access to the network but may not be able to use all functionality in the current version.

2. Hard Forks

Hard forks are like a new OS release—upgrading is mandatory to continue using the software. Because of this, hard forks aren’t compatible with older versions of the network.

Hard forks are a permanent division of the blockchain. As long as enough people support both chains, however, they will both continue to exist.

The three types of hard forks are:

  • Planned
    Scheduled upgrades to the network, giving users a chance to prepare. These forks typically involve abandoning the old chain.
  • Contentious
    Caused by disagreements in the community, forming a new chain. This usually involves major changes to the code.
  • Spin-off Coins
    Changes to Bitcoin’s code that create new coins. Litecoin is an example of this—key changes included reducing mining time from 10 minutes to 2.5 minutes, and increasing the coin supply from 21 million to 84 million.

3. Codebase Forks

Codebase forks copy the Bitcoin code, allowing developers to make minor tweaks without having to develop the entire blockchain code from scratch. Codebase forks can create a new cryptocurrency or cause unintentional blockchain forks.

4. Blockchain Forks

Blockchain forks involve branching or splitting a blockchain’s whole transaction history. Outcomes range from “orphan” blocks to new cryptocurrencies.

Splitting off the Bitcoin network to form a new currency is much like a religious schism—while most of the characteristics and history are preserved, a fork causes the new network to develop a distinct identity.

Summarizing Major Bitcoin Forks

Descriptions of major forks that have occurred in the Bitcoin blockchain:

  • Bitcoin / Bitcoin Core
    The first iteration of Bitcoin was launched by Satoshi Nakamoto in 2009. Future generations of Bitcoin (aka Bitcoin 0.1.0) were renamed Bitcoin Core, or Bitcore, as other blockchains and codebases formed.
  • BTC1
    A codebase fork of Bitcoin. Developers released a hard fork protocol called Segwit2x, with the intention of having all Bitcoin users eventually migrate to the Segwit2x protocol. However, it failed to gain traction and is now considered defunct.
  • Bitcoin ABC
    Also a codebase fork of Bitcoin, Bitcoin ABC was intentionally designed to be incompatible with all Bitcoin iterations at some point. ABC branched off to form Bitcoin Cash in 2017.
  • Bitcoin Gold, Bitcoin Diamond, Other Fork Coins
    After the successful yet contentious launch of Bitcoin Cash, other fork coins began to emerge. Unlike the disagreement surrounding Bitcoin Cash, most were simply regarded as a way to create new coins.

Some of the above forks were largely driven by ideology (BTC1), some because of mixed consensus on which direction to take a hard fork (Bitcoin ABC), while others were mainly profit-driven (Bitcoin Clashic)—or a mix of all three.

Where’s the Next Fork in the Road?

Forks are considered an inevitability in the blockchain community. Many believe that forks help ensure that everyone involved—developers, miners, and investors—all have a say when disagreements occur.

Bitcoin has seen its fair share of ups and downs. Crypto investors should be aware that Bitcoin, as both a protocol and a currency, is complex and always evolving. Even among experts, there is disagreement on what constitutes a soft or hard fork, and how certain geopolitical events have played a role in Bitcoin’s evolution.

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How the Top Cryptocurrencies Performed in 2021

Cryptocurrencies had a breakout year in 2021, providing plenty of volatility and strong returns across crypto’s various sectors.

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The Returns of Top Cryptocurrencies in 2021

2021 saw the crypto markets boom and mature, with different sectors flourishing and largely outperforming the market leader, bitcoin.

While bitcoin only managed to return 59.8% last year, the crypto sector’s total market cap grew by 187.5%, with many of the top coins offering four and even five-digit percentage returns.

2021 Crypto Market Roundup

Last year wasn’t just a breakout year for crypto in terms of returns, but also the growing infrastructure’s maturity and resulting decorrelation of individual crypto industries and coins.

Crypto’s infrastructure has developed significantly, and there are now many more onramps for people to buy altcoins that don’t require purchasing and using bitcoin in the process. As a result, many cryptocurrency prices were more dictated by the value and functionality of their protocol and applications rather than their correlation to bitcoin.

CryptocurrencyCategory2021 Returns
BitcoinCryptocurrency59.8%
EthereumSmart Contract Platform399.2%
Binance CoinExchange Token1,268.9%
SolanaSmart Contract Platform11,177.8%
CardanoSmart Contract Platform621.3%
XRPCryptocurrency277.8%
TerraSmart Contract Platform12,967.3%
AvalancheSmart Contract Platform3,334.8%
PolkadotSmart Contract Platform187.9%
DogecoinMeme Coin3,546.0%

Sources: TradingView, Binance, Uniswap, FTX, Bittrex

Bitcoin wasn’t the only cryptocurrency that didn’t manage to reach triple-digit returns in 2021. Litecoin and Bitcoin Cash also provided meagre double-digit percentage returns, as payment-focused cryptocurrencies were largely ignored for projects with smart contract capabilities.

Other older projects like Stellar Lumens (109%) and XRP (278%) provided triple-digit returns, with Cardano (621%) being the best performer of the old guard despite not managing to ship its smart contract functionality last year.

The Rise of the Ethereum Competitors

Ethereum greatly outpaced bitcoin in 2021, returning 399.2% as the popularity boom of NFTs and creation of DeFi 2.0 protocols like Olympus (OHM) expanded possible use-cases.

But with the rise of network activity, a 50% increase in transfers in 2021, Ethereum gas fees surged. From minimums of $20 for a single transaction, to NFT mint prices starting around $40 and going into the hundreds on congested network days, crypto’s retail crowd migrated to other smart contract platforms with lower fees.

Alternative budding smart contract platforms like Solana (11,178%), Avalanche (3,335%), and Fantom (13,207%) all had 4-5 digit percentage returns, as these protocols built out their own decentralized finance ecosystems and NFT markets.

With Ethereum set to merge onto the beacon chain this year, which uses proof of stake instead of proof of work, we’ll see if 2022 brings lower gas fees and retail’s return to Ethereum if the merge is successful.

Dog Coins Meme their Way to the Top

While many new cryptocurrencies with strong functionality and unique use-cases were rewarded with strong returns, it was memes that powered the greatest returns in cryptocurrencies this past year.

Dogecoin’s surge after Elon Musk’s “adoption” saw many other dog coins follow, with SHIB benefitting the most and returning an astounding 19.85 million percent.

But ever since Dogecoin’s run from $0.07 to a high of $0.74 in Q2 of last year, the original meme coin’s price has slowly bled -77% down to $0.17 at the time of writing. After the roller coaster ride of last year, 2022 started with a positive catalyst for Dogecoin holders as Elon Musk announced DOGE can be used to purchase Tesla merchandise.

Gamifying the Crypto Industry

The intersection between crypto, games, and the metaverse became more than just a pipe dream in 2021. Axie Infinity was the first crypto native game to successfully establish a play to earn structure that combines its native token (AXS) and in-game NFTs, becoming a sensation and source of income for many in the Philippines.

Other crypto gaming projects like Defi Kingdoms are putting recognizable game interfaces on decentralized finance applications, with the decentralized exchange becoming the town’s “marketplace” and yield farms being the “gardens” where yield is harvested. This fantasy aesthetic is more than just a new coat of paint, as the project with $1.04B of total value locked is developing an underlying play-to-earn game.

Along with gamification, 2021 saw crypto native and non-crypto developers put a big emphasis on the digital worlds or metaverses users will inhabit. Facebook’s name change to Meta resulted in the two prominent metaverse projects The Sandbox (SAND) and Decentraland (MANA) surge another few hundred percent to finish off the year at 16,261% and 4,104% returns respectively.

With so many eyes on the crypto sector after the 2021’s breakout year, we’ll see how developing U.S. regulation and changing macro conditions affect cryptocurrencies in 2022.

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The 20 Internet Giants That Rule the Web

A lot has changed since Yahoo and AOL were the homepages of choice. This visualization looks at the largest internet giants in the U.S. since 1998.

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The 20 Internet Giants That Rule the Web (1998-Today)

With each passing year, an increasingly large segment of the population no longer remembers images loading a single pixel row at a time, the earsplitting sound of a 56k modem, or the early domination of web portals.

Many of the top websites in 1998 were news aggregators or search portals, which are easy concepts to understand. Today, brand touch-points are often spread out between devices (e.g. mobile apps vs. desktop) and a myriad of services and sub-brands (e.g. Facebook’s constellation of apps). As a result, the world’s biggest websites are complex, interconnected web properties.

The visualization above, which primarily uses data from ComScore’s U.S. Multi-Platform Properties ranking, looks at which of the internet giants have evolved to stay on top, and which have faded into internet lore.

America Moves Online

For millions of curious people the late ’90s, the iconic AOL compact disc was the key that opened the door to the World Wide Web. At its peak, an estimated 35 million people accessed the internet using AOL, and the company rode the Dotcom bubble to dizzying heights, reaching a valuation of $222 billion dollars in 1999.

AOL’s brand may not carry the caché it once did, but the brand never completely faded into obscurity. The company continually evolved, finally merging with Yahoo after Verizon acquired both of the legendary online brands. Verizon had high hopes for the company—called Oath—to evolve into a “third option” for advertisers and users who were fed up with Google and Facebook.

Sadly, those ambitions did not materialize as planned. In 2019, Oath was renamed Verizon Media, and was eventually sold once again in 2021.

A City of Gifs and Web Logs

As internet usage began to reach critical mass, web hosts such as AngelFire and GeoCities made it easy for people to create a new home on the Web.

GeoCities, in particular, made a huge impact on the early internet, hosting millions of websites and giving people a way to actually participate in creating online content. If it were a physical community of “home” pages, it would’ve been the third largest city in America, after Los Angeles.

This early online community was at risk of being erased permanently when GeoCities was finally shuttered by Yahoo in 2009, but luckily, the nonprofit Internet Archive took special efforts to create a thorough record of GeoCities-hosted pages.

From A to Z

In December of 1998, long before Amazon became the well-oiled retail machine we know today, the company was in the midst of a massive holiday season crunch.

In the real world, employees were pulling long hours and even sleeping in cars to keep the goods flowing, while online, Amazon.com had become one of the biggest sites on the internet as people began to get comfortable with the idea of purchasing goods online. Demand surged as the company began to expand their offering beyond books.

Amazon.com has grown to be the most successful merchant on the Internet.

– New York Times (1998)

Digital Magazine Rack

Meredith will be an unfamiliar brand to many people looking at today’s top 20 list. While Meredith may not be a household name, the company controlled many of the country’s most popular magazine brands (People, AllRecipes, Martha Stewart, Health, etc.) including their sizable digital footprints. The company also owned a slew of local television networks around the United States.

After its acquisition of Time Inc. in 2017, Meredith became the largest magazine publisher in the world. Since then, however, Meredith has divested many of its most valuable assets (Time, Sports Illustrated, Fortune). In December 2021, Meredith merged with IAC’s Dotdash.

“Hey, Google”

When people have burning questions, they increasingly turn to the internet for answers, but the diversity of sources for those answers is shrinking.

Even as recently as 2013, we can see that About.com, Ask.com, and Answers.com were still among the biggest websites in America. Today though, Google appears to have cemented its status as a universal wellspring of answers.

As smart speakers and voice assistants continue penetrate the market and influence search behavior, Google is unlikely to face any near-term competition from any company not already in the top 20 list.

New Kids on the Block

Social media has long since outgrown its fad stage and is now a common digital thread connecting people across the world. While Facebook rapidly jumped into the top 20 by 2007, other social media infused brands took longer to grow into internet giants.

By 2018, Twitter, Snapchat, and Facebook’s umbrella of platforms were all in the top 20, and you can see a more detailed and up-to-date breakdown of the social media universe here.

A Tangled Web

Today’s internet giants have evolved far beyond their ancestors from two decades ago. Many of the companies in the top 20 run numerous platforms and content streams, and more often than not, they are not household names.

A few, such as Mediavine and CafeMedia, are services that manage ads. Others manage content distribution, such as music, or manage a constellation of smaller media properties, as is the case with Hearst.

Lastly, there are still the tech giants. Remarkably, three of the top five web properties were in the top 20 list in 1998. In the fast-paced digital ecosystem, that’s some remarkable staying power.

This article was inspired by an earlier work by Philip Bump, published in the Washington Post.

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