What Is Ethereum? The Complete 2026 Guide to ETH, Staking & ETFs

TL;DR

• Ethereum is the world's first programmable blockchain — a decentralized network of validators that runs smart contracts written in Solidity and executed on the Ethereum Virtual Machine. Native asset: ether (ETH).
• In 2026 ETH is a proof-of-stake asset (since The Merge on 15 Sept 2022), with ~30 million ETH staked (~25% of supply) and net real yield of roughly 2.8-3.5% APR plus MEV tips.
• Nine US spot Ethereum ETFs — led by BlackRock ETHA and Fidelity FETH — have been live since 23 July 2024, providing regulated brokerage access to ETH.
• The 2025 Pectra and 2026 Fusaka upgrades, an explosion of Layer 2 rollups, and the EigenLayer restaking economy have repositioned Ethereum as the settlement and security layer for a multi-chain ecosystem with ~$80B+ TVL across L1 and L2.

Table of contents

• What is Ethereum
• How Ethereum works
• Proof of Stake and the Merge
• Ethereum upgrade roadmap
• ETH staking ecosystem
• EigenLayer and restaking
• Layer 2 ecosystem
• Spot Ethereum ETFs
• DeFi on Ethereum
• Stablecoins on Ethereum
• Ethereum vs Bitcoin
• Vitalik's six-stage roadmap
• Ethereum economics and ultrasound money
• Risks and criticism
• How to use Ethereum
• Ethereum price 2026 outlook
• FAQ
• Glossary

What is Ethereum? (the 30-second definition)

Ethereum is a decentralized, programmable blockchain that lets anyone deploy and run smart contracts — self-executing programs — on a network of thousands of independent validators worldwide. Ether (ETH) is the asset that pays for computation, secures the chain through staking, and acts as the most-used collateral across decentralized finance.

Where Bitcoin gave the world a single, narrow application — peer-to-peer digital money — Ethereum generalized the model. The Ethereum white paper, published in December 2013 by Vitalik Buterin, described a "next-generation smart contract and decentralized application platform." The mainnet went live on 30 July 2015. Eleven years later, Ethereum is the home of stablecoins, NFTs, decentralized exchanges, lending protocols, restaking, and dozens of Layer 2 rollups, with the Ethereum Foundation serving as the most prominent (but non-controlling) stewardship organization.

Three core ideas distinguish Ethereum from earlier networks:

1. Turing-completeness. The Ethereum Virtual Machine (EVM) can run arbitrary logic, not just payments.
2. Composability. Any contract can call any other contract atomically, enabling protocol-on-protocol "money Lego" stacks like a Uniswap trade settling collateral on Aave inside a single transaction.
3. Credibly neutral settlement. Ethereum aims to be a base layer that no government, foundation or corporation can unilaterally censor or shut down.

How Ethereum works (EVM, accounts, gas, blocks)

Accounts: EOAs and contracts

Ethereum has two account types:

• Externally Owned Accounts (EOAs) — controlled by a private key. Wallets like MetaMask and Rabby generate EOAs.
• Contract accounts — controlled by code. Their behaviour is fixed at deployment (unless explicitly written to be upgradeable), and they can only act when an EOA pokes them with a transaction.

The May 2025 Pectra upgrade introduced EIP-7702, which lets EOAs temporarily delegate execution to a smart-contract code path within a single transaction — the most consequential step toward full account abstraction yet shipped on mainnet.

Gas, transactions, and EIP-1559

Every operation on Ethereum costs a measurable amount of "gas" — a metric for compute and storage work. Users pay gas in ETH (denominated in gwei, where 1 ETH = 10^9 gwei). Since the London upgrade in August 2021, each block has a base fee that automatically adjusts to demand and is burned rather than paid to validators, plus an optional priority tip paid to the proposer. This burn mechanism is the engine of the "ultrasound money" thesis discussed below.

Slots, epochs, and the validator set

Post-Merge Ethereum produces a new block every 12 seconds (one slot). 32 slots make one epoch (~6.4 minutes). At each slot a validator is randomly selected to propose a block, and a committee of ~128 validators attests to it. Two-thirds attestation finalizes the block, typically within two epochs (~12.8 minutes). As of April 2026 there are roughly 1,050,000 active validators following EIP-7251 consolidation.

MEV and block building

Maximal Extractable Value (MEV) — the surplus a block proposer can extract by reordering, including or censoring transactions — has matured into a structured market. Most validators outsource block construction to specialised builders via Flashbots MEV-Boost, which separates proposer from builder via a relay. Recent Flashbots research on MEV and the limits of scaling and FHE blind arbitrage maps the active research frontier on cryptographic MEV mitigation.

Proof of Stake and the Merge

For its first seven years Ethereum used proof of work, like Bitcoin. The Beacon Chain launched on 1 December 2020 as a separate proof-of-stake chain, accumulating staked ETH while the proof-of-work chain continued running in parallel. On 15 September 2022 the two chains were merged under EIP-3675 — The Merge — and Ethereum's proof-of-work era ended in a single block.

The Ethereum Foundation estimated the Merge cut Ethereum's energy consumption by approximately 99.95%. It also flipped Ethereum's monetary issuance from ~13,000 ETH/day under PoW (mostly to miners) to ~2,500 ETH/day under PoS (to validators), making net-deflationary periods possible for the first time.

Crucially, the Merge did not reduce gas fees by itself — that came later with the Dencun upgrade and the explosion of Layer 2 rollups.

The Ethereum upgrade roadmap

Ethereum has shipped a steady cadence of hard forks. Each carries a planet-themed consensus name and a city-themed execution name; the combined upgrades are referenced by their portmanteau (e.g. Cancun-Deneb → "Dencun").

The Dencun upgrade on 13 March 2024 was the most consequential change for end users since the Merge: it introduced blob transactions — temporary Ethereum 4844 blobs that drop rollup data costs by 10-100x. Average L2 fees on Arbitrum, Optimism, Base and zkSync Era collapsed from $0.10-0.50 per swap pre-Dencun to $0.001-0.05 post-Dencun.

The 2025 Pectra upgrade then doubled target blob throughput, shipped account abstraction primitives, and let large stakers consolidate up to 2,048 ETH per validator — eliminating the operational burden of running 64 separate validators for 2,048 ETH of stake. The 2026 Fusaka release, currently in devnet, will introduce PeerDAS, a sampling scheme allowing validators to verify blob data availability without downloading every blob. PeerDAS is targeted to deliver another ~8x blob capacity increase, on the path to full Danksharding.

Beyond Fusaka, the roadmap envisions:

• Verkle trees, replacing the Merkle Patricia trie to enable compact state proofs and stateless clients.
• Stateless clients, letting validators verify blocks without storing the full state.
• EIP-7732 ePBS — enshrined proposer-builder separation to formalize the MEV pipeline at the protocol level.
• Quantum-resistant signatures, foreshadowed by a16z's quantum-blockchain research.

ETH staking ecosystem

Staking ETH means locking up ETH so a validator can secure the network and earn issuance plus tips. Three flavours dominate in 2026:

1. Solo staking. Run your own validator (32-2,048 ETH after Pectra) on hardware you control. Maximum decentralization, maximum operational responsibility.
2. Liquid staking via Lido, Rocket Pool and others. Deposit any amount of ETH, receive a tradable receipt token like stETH, rETH or cbETH.
3. Centralized staking-as-a-service through exchanges (Coinbase, Binance, Kraken).

The single biggest player is Lido DAO, which historically held ~30% of all staked ETH. Concerns about validator concentration drove the DAO to set a self-imposed market-share target and led to the rise of competitors. As of April 2026 the staking landscape looks roughly like this:

Top liquid staking tokens (LSTs) by market share — April 2026

Approximate 30 million ETH is staked in total — roughly 25% of total supply. Real (post-burn-adjusted) staking yield runs ~2.8-3.5% APR plus MEV tips, with peaks during congestion windows. The seminal industry reference for the staking economy is Messari's State of Ethereum 2024.

EigenLayer and the restaking economy

In 2024, EigenLayer introduced restaking: the idea that ETH (or LSTs) already securing Ethereum can be re-pledged to secure additional protocols — Actively Validated Services (AVSs) — in exchange for additional yield. At its peak, EigenLayer alone held over $20 billion in TVL, briefly making it the largest DeFi protocol on Ethereum.

Restaking has since fragmented into a multi-protocol category:

• EigenLayer — the original, with native and LST restaking.
• Symbiotic — modular, permissionless, multi-asset restaking.
• Karak — multi-chain, generalized "K2" restaking with vault primitives.

A second layer of Liquid Restaking Tokens (LRTs) packages restaking yield into transferable receipts:

Top liquid restaking tokens (LRTs) — April 2026

Major AVSs include EigenDA (data availability for rollups), AltLayer (rollup-as-a-service), Lagrange (ZK coprocessor), Witness Chain and eOracle. The model is not without controversy — concerns about cascading slashing risk, AVS quality, and looped leverage have triggered active research, including a16z's "accountable liveness" work on slashing economics.

Layer 2 rollups: the scaling engine

By 2026 the vast majority of end-user Ethereum activity has migrated to Layer 2 rollups, which inherit Ethereum's security while batching transactions off-chain. There are two major families:

• Optimistic rollups — assume transactions are valid, allow fraud proofs during a challenge window. Examples: Arbitrum, Optimism, Base, Blast, Mantle.
• ZK rollups — generate cryptographic validity proofs for each batch. Examples: zkSync Era, Starknet, Scroll, Linea, Polygon zkEVM.

Top L2s by TVL — April 2026 (representative)

Base — Coinbase's L2 launched on the OP Stack in August 2023 — has quietly become the breakout story of 2025: by mid-year it had generated $75M+ in revenue YTD, hosted a wave of consumer crypto apps, and its OP Stack siblings now exceed 20 chains under the Optimism Superchain. Arbitrum Orbit has spawned 100+ application-specific chains including the pre-eminent on-chain perps DEX network. Live data is best tracked at L2Beat and DefiLlama, per the DefiLlama methodology.

Spot Ethereum ETFs

Following the success of the spot Bitcoin ETFs in January 2024, the SEC approved nine spot Ethereum ETF 19b-4 filings on 23 May 2024 — the event:eth-etf-approval-may2024 — with S-1s effective and trading beginning 23 July 2024. Unlike the BTC ETFs, the SEC required issuers to strip staking yield from the products, so current ETH ETFs hold spot ETH only and do not pass through ~3% staking APR (an issue lobby groups continue to challenge).

US Spot Ethereum ETFs — April 2026

The pattern mirrored the Bitcoin ETF launch. The high-fee converted Grayscale ETHE bled assets like GBTC had, while net inflows clustered into BlackRock ETHA, Fidelity FETH and the cheap Grayscale Mini Trust. Cumulative net flows turned decisively positive in late 2024, with combined AUM exceeding $15B by Q1 2026 depending on price action. International products from Bosera HashKey Ethereum ETF and European 21Shares physical ETPs add further regulated access channels.

DeFi on Ethereum

Ethereum hosts the largest DeFi ecosystem of any chain — typically 55-65% of all DeFi TVL across L1 + L2s. Cornerstone protocols:

DEXs and AMMs

• Uniswap — the dominant DEX. Uniswap v4 launched in January 2025 introducing hooks: programmable callbacks that let any developer extend an AMM pool with custom logic (dynamic fees, on-chain LP orders, oracle integrations).
• Curve Finance — stablecoin-focused AMM with the deepest pegged-asset liquidity.
• Aerodrome — Base's anchor DEX, ve(3,3) model.

Lending

• Aave — largest money market on Ethereum. Aave v3 introduced isolated assets, e-mode and cross-chain liquidity. Aave v4 was announced in 2024 with a hub-and-spoke architecture, and Aave Umbrella launched as a new safety module in 2025.
• Sky / MakerDAO — the original DeFi lender. The August 2024 Endgame rebrand split MakerDAO into the Sky Protocol, introducing USDS (and yield-bearing sUSDS) as upgraded successors to DAI, with Sky Lending replacing the original DSR.

Stablecoin protocols (covered separately below)

DeFi research is well-trodden; see Messari State of DeFi 2024, the BIS Technology of Decentralized Finance and BIS Cryptocurrencies and DeFi for canonical academic perspectives.

Stablecoins on Ethereum

Ethereum is the dominant chain for stablecoins by issuance, hosting roughly 50% of global stablecoin float in 2026.

Major Ethereum-native stablecoins

Ethena's USDe — backed by hedged ETH/BTC perp positions — and its yield-bearing sister sUSDe, grew explosively in 2024-25 to become the third-largest crypto-native stable. Ondo, Securitize, BlackRock BUIDL and Franklin BENJI have also seeded a class of regulated tokenized-Treasury "stable yield" products that increasingly settle on Ethereum and its rollups.

Ethereum vs Bitcoin

The most-asked question in crypto. Here is the honest comparison.

Ethereum vs Bitcoin — head to head (April 2026)

Bitcoin's pitch is simple: a fixed-supply, censorship-resistant store of value. Ethereum's pitch is more layered: a productive yield-bearing asset that also serves as collateral and gas for the largest application platform in crypto. Most institutional portfolios in 2026 hold both — the a16z State of Crypto 2025 and Messari Crypto Theses 2025 reports both treat ETH/BTC as complementary rather than competitive allocations.

The ETH/BTC ratio has historically oscillated between 0.02 (deep BTC dominance) and 0.085 (peak ETH cycles). In April 2026 it sits in the lower-mid range as Bitcoin-ETF flows and the BTC halving narrative continued to outweigh ETH catalysts through 2025.

Vitalik's six-stage roadmap

In late 2022 Vitalik Buterin published an updated Ethereum roadmap organized into six work streams, each with a "phase" name. As of April 2026:

1. The Merge — DONE (Sept 2022). Move to PoS.
2. The Surge — IN PROGRESS. Scale to 100,000 TPS via rollups + danksharding. EIP-4844 (Mar 2024) and PeerDAS (Fusaka, 2026) are the two biggest milestones.
3. The Verge — IN PROGRESS. Verkle trees + stateless clients to make running a node trivial.
4. The Purge — IN PROGRESS. History expiry (EIP-4444), state expiry, simplified protocol.
5. The Splurge — IN PROGRESS. Everything else: account abstraction (EIP-7702 shipped in Pectra), EVM improvements, ZK-EVM at L1.
6. The Scourge — IN PROGRESS. Anti-MEV measures: encrypted mempools, enshrined PBS (EIP-7732), inclusion lists, attester-proposer separation.

The Scourge is the newest addition and arguably the most important for end-user experience: it codifies that Ethereum's long-term answer to MEV is protocol-level, not delegated forever to off-chain actors.

Ethereum economics and the "ultrasound money" thesis

Post-Merge ETH issuance is determined by the number of validators staked — issuance scales with the square root of total stake to discourage over-staking. In April 2026 daily issuance is roughly 2,400-2,700 ETH/day (~990k ETH/year, ~0.8% inflation rate). Daily burn from EIP-1559 base fees varies wildly with on-chain activity:

• High-activity days (NFT mints, airdrops, congested blockspace): 6,000-12,000 ETH burned/day → strongly net-deflationary.
• Quiet days (especially post-Dencun, with most activity on L2s): 500-1,500 ETH burned/day → mildly net-inflationary.

The "ultrasound money" meme — popularized by Justin Drake and others — describes ETH's potential to be more monetarily tight than even Bitcoin during high-demand windows. Empirically, post-Merge ETH supply has had multiple deflationary periods but has been mildly net-inflationary through much of 2024-25 due to L2 migration. The metric:eth-supply-post-merge tracker is a good live reference.

The real yield equation matters more for staking economics:

Real staking yield ≈ protocol issuance + MEV tips - validator costs - dilution

For a typical validator in 2026, this lands at ~3.0-3.7% real APR in ETH terms, plus any LRT/restaking points and AVS rewards stacked on top.

Risks and criticism

• Validator centralization. Lido alone has at times exceeded ~30% market share. Centralized-exchange validators (Coinbase, Binance, Kraken) combined exceed 20-25% of stake — adjacent regulatory/seizure surface.
• MEV externalities. MEV imposes a hidden tax on users through worse execution. The Flashbots research portfolio outlines structural costs and proposed mitigations (encrypted mempools, FHE, TEE block building, PEPC).
• Cascading restaking risk. LRT-on-LRT leverage loops are reflexive. Renzo's depeg and Kelp DAO's LayerZero exploit have already stress-tested the model.
• Regulatory ambiguity. The 2024 ETF approvals are administrative, not statutory. The 2025 dismissal of SEC v. Coinbase helped, but US market-structure legislation remains pending.
• L2 trust assumptions. Most rollups still rely on a single sequencer and upgradeable proxies gated by multisigs. L2Beat honestly categorizes these "training wheels."
• Quantum + protocol risk. Long-term cryptographic risk is real but distant; see a16z's quantum and blockchains analysis. Quantum-resistant signature work is a multi-year roadmap track.

How to use Ethereum in 2026

If you want to actually use Ethereum, here is a practical 2026 workflow.

1. Choose a wallet

• MetaMask — most popular browser EOA wallet; supports L2s, hardware wallets, MetaMask Snaps for extensions.
• Rabby — power-user EOA with stronger transaction simulation.
• Safe (Gnosis Safe) — smart-contract multisig; best for treasuries, DAOs, anyone with > $10k.
• Hardware wallets (Ledger / Trezor) — pair with MetaMask or Rabby for cold storage.

2. Get ETH

• Regulated exchange — Coinbase, Kraken, Binance. Buy with USD/EUR, withdraw to your wallet.
• Spot ETF — Hold BlackRock ETHA or Grayscale Mini ETH in your brokerage if you only want price exposure.
• Fiat on-ramps — MoonPay, Stripe, Robinhood all support direct-to-wallet ETH purchase.
• L2 bridges — Bridge ETH directly to Arbitrum, Base, Optimism, zkSync, Linea, Scroll, Starknet for cheap fees.

3. Stake (optional)

• Solo: 32 ETH and follow the validator guide.
• Liquid: Deposit on Lido for stETH, Rocket Pool for rETH, or use Coinbase staking for cbETH.
• Restaking: Add another yield layer through EigenLayer, Symbiotic, or LRT issuers like ether.fi.

4. Use DeFi

• Trade: Uniswap v4, Curve, Aerodrome on Base.
• Lend / borrow: Aave v3, Compound, Sky Lending.
• Earn yield on stables: sUSDS (Sky), sUSDe (Ethena), Aave aUSDC.

5. Stay safe

• Always verify contract addresses on Etherscan.
• Never sign blind transactions; use Rabby's transaction simulation.
• Use a hardware wallet for any balance you would not be comfortable losing.
• Read Mastering Ethereum (Andreas Antonopoulos & Gavin Wood) for the canonical technical introduction.

Ethereum price 2026 outlook

Predicting price is not the goal of this article, but the search intent for "ethereum price 2026" deserves a serious answer. Below are the consensus drivers institutional and on-chain analysts are watching.

Bull case (April 2026)

• Staking-yield ETH ETFs widely expected within 2026, capturing the ~3% APR stripped from ETHA/FETH.
• Pectra's 2,048 ETH max balance and EIP-7702 lower friction for institutional stakers.
• Fusaka / PeerDAS on track to deliver another 8x cut in L2 data costs.
• Base and the Coinbase vertical integration thesis keep driving consumer activity onto Ethereum.
• Restaking turns ETH into a productive security-as-a-service asset with AVS revenue.

Bear case

• Solana, Sui and other monolithic L1s siphon user activity from a fragmented L2 ecosystem.
• L2 value capture remains weak post-Dencun — most economic surplus stays at the L2, not L1 ETH.
• Macro risk-off periods drive ETHE-style outflows.
• Restaking faces possible SEC scrutiny of "yield-bearing" LST/LRT products.

Per a16z's 17 things for 2026 and Messari Crypto Theses 2025, the long-term ETH bull case rests on (a) the ETH/BTC ratio re-rating as yield products mature and (b) Ethereum's settlement layer absorbing trillions in tokenized-RWA volume from BlackRock, Franklin Templeton, Securitize and Ondo. None of this is investment advice.

FAQ

What is Ethereum in simple terms?

Ethereum is a decentralized, programmable blockchain. Developers deploy smart contracts on the EVM and any user can interact with them using ether (ETH) as gas. Where Bitcoin is digital money, Ethereum is closer to a global, neutral computer that hosts DeFi, stablecoins, NFTs and Layer 2 rollups — none of which can be censored by any single company.

How does ETH staking work in 2026?

Stakers lock ETH to validate blocks and earn rewards. Solo stakers run validators (32-2,048 ETH after Pectra). Everyone else uses liquid staking via Lido (stETH), Rocket Pool (rETH) or Coinbase (cbETH). About 30M ETH (~25% of supply) is staked, paying ~2.8-3.5% APR plus MEV tips.

How many spot Ethereum ETFs are there?

Nine US spot ETH ETFs trade after the SEC's 23 May 2024 approval and 23 July 2024 launch: BlackRock ETHA, Fidelity FETH, Bitwise ETHW, 21Shares CETH, VanEck ETHV, Invesco Galaxy QETH, Franklin EZET, Grayscale ETHE and the Grayscale Ethereum Mini Trust.

What is the difference between Ethereum and Bitcoin?

Bitcoin is a fixed-supply (21M cap) proof-of-work store of value. Ethereum is a Turing-complete proof-of-stake smart-contract platform with a flexible supply that burns base fees under EIP-1559 — making ETH net-deflationary during busy periods. ETH uses ~99.9% less energy than BTC after the 2022 Merge.

What was The Merge?

The Merge (15 Sept 2022, EIP-3675) joined Ethereum's execution layer with the Beacon Chain (launched 1 Dec 2020), ending proof of work and cutting energy use by ~99.95%. It enabled staking, EIP-1559 burn dynamics and the rest of the post-Merge roadmap.

What is the Pectra upgrade?

Pectra activated in May 2025 and shipped EIP-7702 (account-abstraction features for EOAs), EIP-7251 raising the validator max effective balance from 32 to 2,048 ETH, and increased target blob throughput. It is the biggest single Ethereum upgrade since Dencun and the foundation for the 2026 Fusaka release.

What is the Fusaka upgrade and when is it expected?

Fusaka (planned H2 2026) bundles Fulu (consensus) and Osaka (execution). Its centerpiece is PeerDAS — Peer Data Availability Sampling — a stepping-stone toward full Danksharding that should boost blob capacity by ~8x and further cut Layer 2 data costs.

Is Ethereum a security according to the SEC?

No. As of April 2026 the SEC has not declared ETH a security; its 2024 approval of spot Ethereum ETFs implicitly treats ETH as a non-security commodity. The CFTC has publicly classified ETH as a commodity since 2018, and the 2025 dismissal of SEC v. Coinbase removed the main outstanding enforcement question.

Is Ethereum deflationary?

Sometimes. EIP-1559 burns the base fee in every transaction; staking issues new ETH. When activity is high, burn exceeds issuance and supply shrinks (the "ultrasound money" thesis). After Dencun moved L2 data into blobs, L1 gas fell and issuance again exceeded burn through 2024-25.

How can I buy ETH safely?

Use a regulated exchange (Coinbase, Kraken, Binance.US) and either withdraw to a non-custodial wallet (MetaMask, Rabby, Safe) or hold an ETH ETF such as BlackRock ETHA in a brokerage account. Use a hardware wallet for sizeable balances.

Glossary

• EVM (Ethereum Virtual Machine) — The deterministic computer that every Ethereum node runs. Executes Solidity bytecode and produces state transitions.
• Gas — The unit of compute on Ethereum. Each EVM operation has a fixed gas cost; a transaction's total gas times the gas price equals the ETH fee paid.
• EIP-1559 — The August 2021 fee-market upgrade that introduced the base fee (burned) and priority tip (paid to proposer).
• Validator — A 32-2,048 ETH staked entity that proposes and attests blocks under proof of stake.
• Beacon Chain — Ethereum's PoS consensus layer; launched Dec 1 2020; merged with execution layer Sept 15 2022.
• Slot / Epoch — Slots are 12-second windows; 32 slots = one epoch (~6.4 min).
• Blob (EIP-4844) — Cheap, ephemeral data attached to a block specifically for rollups; introduced March 2024.
• Rollup (Layer 2) — A secondary chain that batches transactions and posts proofs/data back to Ethereum L1 for security.
• LST (Liquid Staking Token) — Tradable receipt for staked ETH, e.g. stETH, rETH, cbETH.
• LRT (Liquid Restaking Token) — Tradable receipt for restaked ETH/LSTs in EigenLayer/Symbiotic/Karak, e.g. eETH/weETH, ezETH, rsETH, pufETH.
• MEV — Maximal Extractable Value: profit a block proposer can extract through transaction ordering.
• AVS — Actively Validated Service: any external protocol that rents security from EigenLayer's restakers.
• Account Abstraction — Treating wallets as smart contracts. EIP-7702 in Pectra (2025) is the first EOA-AA path on mainnet.

Related reading (internal links)

• Spot Bitcoin ETF Guide 2026
• Bitcoin Halving 2024 Explained
• ETH Staking — A Step-by-Step Guide
• EigenLayer & Restaking Explained
• Layer 2 Rollups — Optimistic vs ZK
• Uniswap v4 Hooks for Beginners
• Stablecoins 2026 — USDT, USDC, USDS, USDe Compared
• DeFi Explained — Money Legos on Ethereum

Sources and further reading

• Ethereum.org — Whitepaper
• Ethereum.org — Roadmap
• Ethereum Foundation Blog — The Merge
• Ethereum Foundation Blog — Dencun mainnet
• Ethereum Foundation Blog — Pectra mainnet
• EIP-1559
• EIP-3675 (The Merge)
• EIP-4844 (Proto-Danksharding)
• EIP-7702 (EOA delegation)
• EIP-7251 (MaxEB)
• Vitalik Buterin — Updated Roadmap (2022)
• SEC — Spot Ethereum ETF approval (May 23 2024)
• DefiLlama — Ethereum chain
• L2Beat — Scaling summary
• Beaconcha.in — Validator dashboard
• Etherscan
• Lido Finance
• iShares ETHA fact sheet (BlackRock)
• Fidelity FETH snapshot
• BIS Working Paper 1066 — The Technology of DeFi

About the author

DeFi Intel Research is an independent on-chain research desk covering crypto markets, DeFi, MEV and the Ethereum ecosystem. Our team operates a production MEV stack on Ethereum mainnet and Layer 2s and publishes weekly market-structure briefings. Editorial standards: every claim is sourced; no paid placements; no affiliate links. Read more on the About page.

Last updated: 2026-04-26