Ethereum — Grokipedia (2026)
Source: https://grokipedia.com/page/Ethereum
Raw file: raw/articles/ethereum-3.md
Overview
A long-form encyclopaedia-style article covering Ethereum’s complete history, technical architecture, and token economics as of early 2026. More granular than the Wikipedia article on many historical episodes (ICO boom, DeFi Summer, The Merge) and significantly more detailed on the upgrade timeline through Pectra (May 2025) and Fusaka (December 2025).
Historical Timeline
Conception and Founding (2011–2014)
- Vitalik Buterin (born Russia 1994, raised Canada) encountered Bitcoin in 2011 and co-founded Bitcoin Magazine with Mihai Alisie
- After engaging with Colored Coins and Mastercoin projects, Buterin identified Bitcoin’s scripting language as too limited for complex decentralised applications
- In late 2013 he conceived Ethereum as a Turing-complete programmable blockchain; circulated the whitepaper in November 2013
- Announced publicly at the North American Bitcoin Conference, Miami, January 2014
- Core founding team: Buterin, Alisie, Anthony Di Iorio, Charles Hoskinson, Amir Chetrit; then Gavin Wood, Joseph Lubin, Jeffrey Wilcke joined
- Wood authored the Yellow Paper (April 2014) — the formal EVM specification
Crowdsale and Frontier Launch (2014–2015)
- Presale: July 22 – September 2, 2014 (42 days)
- Initial rate: 2,000 ETH/BTC, declining to 1,333 ETH/BTC; raised >31,000 BTC (~$18.3M USD)
- ~60 million ETH distributed to ~8,000 addresses (83% of initial 72M supply)
- Funds managed by the newly formed Ethereum Foundation in Zug, Switzerland
- Mainnet (Frontier) launched July 30, 2015 — developer beta; command-line only, no wallets or exchanges
The DAO Hack and Ethereum Classic Fork (2016)
- The DAO was a venture fund smart contract launched April 30, 2016; raised
12 million ETH ($150M, >10% of all ETH) - June 17, 2016: attacker exploited a reentrancy vulnerability in
splitDAO, draining 3.6 million ETH (~$50–60M) - The exploit worked by re-entering the withdrawal function before the contract updated the caller’s balance — a foundational smart contract security failure
- Community debate: pragmatists (reverse the hack via hard fork) vs. immutabilists (“code is law”)
- July 20, 2016 (block 1,920,000): hard fork executed on the majority chain → became modern Ethereum (ETH)
- Minority that rejected the fork → became Ethereum Classic (ETC)
- SEC examined The DAO as a potential unregistered security; no charges filed
ICO Boom and Enterprise Interest (2017–2018)
- ERC-20 token standard enabled rapid token issuance; >800 ICOs raised ~10B by end-2018)
- Enterprise Ethereum Alliance (EEA) formed March 1, 2017 (30 founding members: JPMorgan, Microsoft, Intel, Bank of New York Mellon, UBS); grew to 116+ members by May 2017
- Post-ICO peak bear market: ETH dropped from ~84 (Dec 2018)
DeFi Emergence and Scaling Debates (2019–2021)
- DeFi TVL grew from ~680M (end 2019) via MakerDAO, Compound, Uniswap
- DeFi Summer (mid-2020): Compound’s COMP governance token launched June 17, 2020; TVL exploded from <14B by December
- Network congestion peaked: 200+ gwei gas prices, 100/tx fees during yield farming frenzies
- October 2020: Buterin published “rollup-centric roadmap” — L1 as settlement layer for L2 rollups
- August 5, 2021 (London hard fork): EIP-1559 activated — base fee burned per block; fee variance reduced significantly
- August 2021: Arbitrum mainnet launched — L2 at fraction of L1 cost
The Merge to Proof-of-Stake (2022)
- Beacon Chain launched December 1, 2020 (PoS infrastructure, separate from mainnet)
- September 15, 2022 (block 15537393): The Merge — mainnet fused with Beacon Chain; PoW eliminated
- Energy reduction: 112.6 TWh/year → ~0.01 TWh/year (>99.95% reduction)
- Issuance dropped ~90%; slashing rate <0.01% annually
- Bear market: ETH opened 2022 at 896 in June (Terra/Luna collapse), closed at $1,197
Post-Merge Upgrades (2023–2024)
- Shanghai/Shapella (April 12, 2023): enabled validator withdrawals (EIP-4895); ~1.2M ETH withdrew in first month, but net staking inflows resumed — no exodus
- Dencun (March 13, 2024): proto-danksharding via EIP-4844 (blob transactions up to 128 KB each, 6 per block) → L2 fees fell up to 90%; >100 TPS aggregated across L2s
- By late 2024: 30M+ ETH staked (>25% of supply); supply averaging 0.5–1% annual issuance under deflationary conditions during high activity
Pectra, Fusaka, and 2025–2026 Advances
- Pectra (May 7, 2025): 11 EIPs — largest upgrade since Dencun
- EIP-7702: EOAs can temporarily delegate to smart contracts (account abstraction stepping stone)
- EIP-7251: max validator balance raised from 32 ETH to 2,048 ETH (stake consolidation)
- EIP-7002: execution-layer-triggered validator withdrawals
- Result: >70% DeFi TVL growth by mid-2025; $772B stablecoin settlements on Ethereum in September 2025 alone
- Fusaka (December 3, 2025): PeerDAS (EIP-7594) — validators verify data availability by sampling portions of blobs rather than full downloads; reduces bandwidth ~85%; L2 TPS potentially >100,000; L2 fees fell 40–60%
- January 2026: Second Blob Parameter-Only hard fork — max blobs/block raised from 15 → 21; target 10 → 14
- Post-Quantum Ethereum hub (pq.ethereum.org) launched March 2026 — protocol-level quantum-resistant signature migration targeted by 2029
Technical Architecture
Ethereum Virtual Machine (EVM)
The EVM is a stack-based, Turing-complete, sandboxed runtime executing smart contract bytecode:
- Word size: 256 bits (32 bytes)
- Data areas: 1,024-item stack, expandable memory (transient), per-contract persistent storage (256-bit key→256-bit value)
- Gas metering: each opcode has a fixed cost (e.g., ADD = 3 gas; SSTORE = 20,000+ gas); prevents DoS by pricing computation
- Determinism: given identical inputs, all nodes produce identical outputs — required for consensus
- Has become the de facto standard: BSC, Arbitrum, Base, Hyperliquid all emulate it
Consensus: Gasper (post-Merge)
Gasper = LMD-GHOST (fork-choice) + Casper FFG (finality):
- Time divided into slots (12 sec each) and epochs (32 slots)
- Finality achieved after ~2 epochs (~13 minutes)
- Slashing for equivocation (double-signing); empirical slashing rate <0.04% in 2023
- As of late 2024: >1 million active validators; ~30% of ETH supply staked
Accounts and Gas System
Two account types:
- EOAs (externally owned accounts) — controlled by private keys; initiate transactions
- Contract accounts — controlled by smart contract code; respond to incoming calls
Gas system post-EIP-1559:
- Base fee — protocol-computed, burned; targets 50% block utilisation (elastic up to 30M gas)
- Priority fee (tip) — to the validator; incentivises transaction inclusion
- Max fee — user-set ceiling; any overage refunded
Ether Supply Economics
| Period | Gross Issuance | Net Inflation |
|---|---|---|
| Pre-Merge PoW (~2020–2022) | ~4% annual | +4.09% |
| Post-EIP-1559 Pre-Merge (2021–2022) | ~4% annual | Variable +2–3% |
| Post-Merge (2022–2025) | ~0.5% annual | –0.29% avg (deflationary phases) |
| Early 2026 | ~0.5% annual | +0.75% (low L1 activity, less burning) |
- Burns exceeded 4 million ETH cumulatively by 2025; supply turned deflationary during high-demand periods
- As of early 2026: ~81 million ETH staked (~67% of circulating supply)
- Major holders: BlackRock (~3.4M ETH), Beacon Deposit Contract, Binance, Robinhood
- Vitalik Buterin holds ~240,000 ETH; early investor Rain Lohmus holds ~250,000 ETH (inaccessible — lost private keys)
Entities Mentioned
- vitalik-buterin — conceived Ethereum (2013); main intellectual leader
- gavin-wood — authored the Yellow Paper (EVM formal specification, April 2014); co-founder
- ethereum-foundation — non-profit in Zug, Switzerland; formed during the 2014 presale
- Enterprise Ethereum Alliance — industry consortium formed March 2017 (JPMorgan, Microsoft et al.)
Concepts Mentioned
- ethereum — the programmable blockchain and protocol
- ethereum-virtual-machine — EVM: the Turing-complete runtime for smart contracts
- dao-hack — June 2016 reentrancy exploit; caused the ETH/ETC split
- ethereum-classic — minority chain that refused the DAO fork
- eip-1559 — August 2021 fee reform: base fee burned per block
- geth — Go implementation of Ethereum; original execution client
- proof-of-stake — Ethereum’s consensus since The Merge (Sep 2022)
- defi — DeFi ecosystem; TVL: <14B (end 2020) → $60B+ (2024)
- layer-2 — L2 rollups (Arbitrum, Optimism, Base) handling >99% of activity by 2026
- initial-coin-offering — ICO boom 2017–2018 on Ethereum’s ERC-20 standard
Related sources: wikipedia-2026-ethereum | ethereumorg-2026-what-is-ethereum | coinmarketcap-2026-ethereum-classic | geth-2026-go-ethereum-client