The idea of digital cash
Cryptographer David Chaum publishes the blind-signature scheme that makes private electronic money mathematically possible. His company DigiCash later builds it — and goes bankrupt. The idea survives the company.
One page · The whole story
The Crypto Runway
Every twist in crypto's history laid out as one winding road — 65 stops across six worlds, from a 1983 research paper to the app on your phone. Every stop links to a full explainer on this site. Scroll to travel; the road lights up behind you.
43 years65 stops6 worlds599 pages behind it
W1 The Cypherpunk DawnW2 The Bitcoin EraW3 Ethereum & the ICO ManiaW4 DeFi Summer & the NFT BoomW5 The ReckoningW6 The Institutional Era
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★ appears on every stop whose page you've opened — see how much of the Codex you can clear.
The Cypherpunk Dawn
Two decades of failed digital cash — every failure a lesson Bitcoin would learn.
Hashcash: proof of work is born
Adam Back invents Hashcash to fight email spam by making senders burn a little computing power. A decade later, this exact trick becomes Bitcoin's mining engine.
b-money and Bit Gold
Wei Dai's b-money and Nick Szabo's Bit Gold each sketch decentralised money on paper. Neither is ever built — but Satoshi cites b-money in the very first reference of the Bitcoin whitepaper.
Hal Finney's RPOW
Reusable Proofs of Work — the closest anyone gets to digital cash before Bitcoin. Finney later becomes the recipient of the first ever Bitcoin transaction.
The global financial crisis
Lehman Brothers collapses, banks get bailed out, and trust in the financial system cracks worldwide. This is the moment Bitcoin is built to answer.
The Bitcoin whitepaper
An anonymous author called Satoshi Nakamoto publishes nine pages that solve the double-spend problem with no central authority. Everything on this runway flows from this document.
The Bitcoin Era
One coin, no rules, wild experiments — and the first painful lessons.
The genesis block
Bitcoin's first block is mined, with a newspaper headline about bank bailouts embedded inside it — a permanent, timestamped statement of intent.
Pizza Day
A programmer pays 10,000 BTC for two pizzas — the first real-world purchase with Bitcoin, and history's most expensive lunch. Crypto now has a price.
Litecoin: the first big altcoin
Once Bitcoin proves the idea works, copies with tweaks appear. Litecoin — faster blocks, marketed as 'silver to Bitcoin's gold' — becomes the template for a thousand altcoins.
The first exchange era
Early exchanges make buying crypto possible for normal people — with almost no security, no rules, and no idea what was coming. One of them, Mt. Gox, ends up handling most of the world's Bitcoin trades.
XRP: payments without mining
Ripple takes a different path — a pre-created coin aimed at bank settlements rather than replacing banks. It sparks a decade-long argument (and later a landmark lawsuit) about what a 'real' cryptocurrency is.
The first mainstream bull run
Bitcoin crosses $1,000 for the first time and makes global headlines. Millions hear the word 'Bitcoin' for the first time — mostly as a get-rich-quick story.
Dogecoin: the joke that outlived the punchline
Created in a few hours as a parody of altcoin mania, the meme dog coin refuses to die — and accidentally invents the memecoin category that keeps returning every cycle.
Mt. Gox collapses
The exchange handling most of the world's Bitcoin loses roughly 850,000 BTC and files for bankruptcy. Crypto's first mega-disaster teaches the lesson the industry keeps relearning: not your keys, not your coins.
Monero: private by default
Bitcoin's ledger is public forever — so Monero launches with privacy built in at the protocol level. It becomes the coin regulators cite when they worry, and the purest surviving expression of the cypherpunk ethos.
Stablecoins are born
The first dollar-pegged tokens appear (Tether's earliest version among them) — a boring-sounding idea that quietly becomes crypto's most-used product and the backbone of everything traded on-chain.
Stellar: payments for everyone
Ripple co-founder Jed McCaleb leaves to build Stellar — the same fast-settlement idea, but aimed at cheap remittances and the unbanked rather than banks. The 'crypto for good' thread starts here.
Ethereum & the ICO Mania
Money becomes programmable. Then everyone tries to print their own.
Ethereum goes live
Vitalik Buterin's idea ships: a blockchain that runs programs, not just payments. Smart contracts turn crypto from digital money into a platform — DeFi, NFTs, DAOs and most of this website become possible today.
The DAO hack splits Ethereum
A $150M crowdfunded fund is drained through a smart-contract bug. Ethereum rolls back the theft with a hard fork; those who refuse keep the original chain as Ethereum Classic. 'Code is law' meets reality.
Zcash and zero-knowledge proofs
Zcash brings zero-knowledge cryptography to money — proving a transaction is valid without revealing it. The same math later powers Ethereum's biggest scaling breakthroughs.
ICO mania
Anyone can now issue a token in minutes — so thousands do. Billions are raised on whitepapers alone; most projects deliver nothing. The frenzy funds real innovation and spectacular garbage in equal measure.
Binance launches
A new exchange grows from zero to the world's largest in under a year, and its BNB token pioneers the 'exchange coin'. Trading, not technology, becomes crypto's biggest business.
Bitcoin Cash: the block-size war
After years of civil war over how big Bitcoin's blocks should be, the community splits. Bitcoin Cash forks off — proving that in crypto, irreconcilable arguments end in divorce, not compromise.
Cardano: the peer-review chain
Ethereum co-founder Charles Hoskinson launches a blockchain built on academic research and formal methods — slower to ship, beloved by its community, and a permanent fixture of the top-ten ever since.
CryptoKitties clogs Ethereum
A game about breeding digital cats gets so popular it congests the entire Ethereum network. It's the first NFT craze — and the first warning that blockchains desperately need to scale.
$20,000 — then the crash
Bitcoin touches nearly $20,000, retail FOMO peaks, and then the market loses over 80% across the following year. Crypto's boom-bust cycle announces itself to the mainstream.
Uniswap ships in the crypto winter
While prices bleed, a mechanical engineer's first coding project quietly launches: an exchange with no company, no order book, no permission needed. It becomes the most important app in DeFi.
USDC: the regulated dollar token
Circle and Coinbase launch a stablecoin built to be audited and compliant from day one — the version of crypto that institutions and, eventually, lawmakers can live with.
Chainlink connects contracts to reality
Smart contracts can't see the outside world on their own. Chainlink's oracle network goes live to feed them real prices and data — unglamorous plumbing that all of DeFi ends up depending on.
Lightning: Bitcoin learns to be fast
The Lightning Network grows on top of Bitcoin, letting payments settle instantly for near-zero fees — the answer to 'Bitcoin is too slow for coffee' built as a second layer.
DeFi Summer & the NFT Boom
Banks without bankers, art without frames, and a market that only went up. Until it didn't.
Black Thursday
COVID panic cuts Bitcoin's price roughly in half in a single day and nearly breaks MakerDAO's DAI stablecoin. DeFi's flagship survives its first true stress test — barely.
The UNI airdrop
Uniswap hands free UNI tokens to every past user — instantly worth over a thousand dollars each — and decentralised exchanges go mainstream. The airdrop becomes crypto's signature marketing weapon.
Polkadot goes live
Ethereum co-founder Gavin Wood ships his answer to blockchain isolation: a network of connected chains. The multi-chain future stops being a theory.
Ethereum staking begins
The Beacon Chain launches and ETH holders start staking — the first concrete step in Ethereum's long-promised escape from energy-hungry mining.
The institutions arrive
Tesla puts Bitcoin on its balance sheet, MicroStrategy keeps buying, and payment giants add crypto support. The asset built to bypass Wall Street is now being bought by it.
Beeple sells for $69 million
Christie's auctions a JPEG for $69M and the NFT boom detonates. Digital art, collectibles and profile pictures become a global obsession — and a global argument.
Solana summer
A blockchain promising thousands of transactions per second at sub-cent fees becomes the cycle's breakout star, minting a rival ecosystem to Ethereum almost overnight.
Axie Infinity and play-to-earn
In the Philippines and beyond, people earn real income breeding game creatures. Play-to-earn peaks as a movement — then becomes a cautionary tale about game economies built on new-player money.
Memecoin mania, round two
Shiba Inu turns pocket change into fortunes for a lucky few and losses for many more. Memecoins prove they're not a phase — they're a permanent, chaotic feature of every cycle.
El Salvador makes Bitcoin legal tender
For the first time, a nation adopts Bitcoin as official currency. Economists are horrified, Bitcoiners are euphoric, and the global regulatory conversation changes for good.
China bans crypto — again, but fully
China outlaws crypto trading and mining outright. Half the world's Bitcoin mining relocates within months — and the network shrugs it off, its strongest decentralisation proof yet.
The $3 trillion peak
The total crypto market brushes three trillion dollars — bigger than most national stock markets. Hundreds of coins now have billion-dollar valuations. It is the top.
The metaverse land rush
Facebook renames itself Meta, and virtual land in Decentraland and The Sandbox sells for house prices. The hype fades fast — the underlying question about digital ownership doesn't.
The Reckoning
Terra, Celsius, FTX. The year crypto's worst instincts collapsed in public — and regulation got real.
Terra/LUNA death spiral
An 'algorithmic' stablecoin promising 20% yields collapses to zero in days, erasing tens of billions and wrecking savings worldwide. The dominoes it tips over fall for the rest of the year.
Celsius freezes withdrawals
The 'unbank yourself' lender halts all customer withdrawals, then files for bankruptcy. Millions learn the hard way that a yield account is only as safe as the bets behind it.
The Merge
Ethereum switches from mining to staking live, mid-flight, without stopping the network — cutting its energy use by ~99.9%. Arguably the most impressive engineering feat in crypto history.
FTX collapses
The world's second-largest exchange implodes in a week when it's revealed customer funds were secretly funnelled to its trading arm. Sam Bankman-Fried is later convicted of fraud. Crypto's darkest month.
India's 30% tax era begins
India imposes a flat 30% tax on crypto gains plus 1% TDS on every trade. Domestic volumes crater, offshore flows surge — and Indian crypto policy becomes a case study the world watches.
The Layer-2 era
Arbitrum, Optimism and friends move Ethereum activity to cheaper 'rollup' networks — scaling by building highways above the settlement layer instead of widening it.
Ordinals: NFTs land on Bitcoin
A new protocol inscribes images and data directly onto individual satoshis. Bitcoin purists are furious, fees spike, and Bitcoin gets its first genuinely new use case in years.
Europe passes MiCA
The EU adopts the world's first comprehensive crypto framework, phasing in through end-2024. For the first time, a major market tells the industry exactly what the rules are.
XRP's partial court victory
A US judge rules XRP itself is not inherently a security in exchange sales — the first major crack in the SEC's enforcement-first approach and a turning point for US crypto law.
Friend.tech and the SocialFi flash
An app tokenising access to people ignites overnight, mints millions in fees, and fades almost as fast — the whole SocialFi promise and peril compressed into one season.
Worldcoin and the AI collision
Sam Altman's iris-scanning identity project forces an uncomfortable question into the open: in a world of AI-generated everything, how do you prove you're human — and who should hold that proof?
The Institutional Era
Wall Street plugs in, India counts its lessons, and the story arrives at you.
US spot Bitcoin ETFs approved
After a decade of rejections, Wall Street gets regulated Bitcoin funds — and they become some of the most successful ETF launches in history. The asset born to bypass finance is now inside every brokerage app.
The fourth halving — and Runes
Bitcoin's block reward halves for the fourth time, tightening supply on schedule as designed 16 years earlier. The Runes token protocol launches the same day, spiking fees to records.
WazirX: India's biggest exchange hack
India's largest exchange loses $235 million to North Korea's Lazarus Group after its multisig security fails. Millions of Indian users are locked out — the country's own hard lesson in custody risk.
DePIN and AI agents
Crypto meets the physical world (wireless networks, mapping, GPUs via DePIN) and the AI wave (agents with wallets, decentralised compute). The frontier moves from finance to infrastructure.
The on-chain trading renaissance
Hyperliquid proves a serious derivatives exchange can run fully on-chain, while Ethena's synthetic dollar grows at record pace — DeFi's second generation gets genuinely competitive with centralised giants.
Stablecoins become policy, CBDCs advance
Dollar stablecoins settle trillions and move to the centre of policy debates worldwide, while central banks — including India's digital rupee pilot — build their own official alternatives.
You are here
From nine pages by an anonymous author to a global industry — and a 599-page library trying to explain all of it honestly. The next stretch of runway is yours to explore.