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Layer 2 explainer 06 / 07  |  scroll  |  scr  |  2 min read
SCR

Scroll: a well-regarded zkEVM on a very quiet chain

A ZK Rollup aiming for bytecode-level compatibility with Ethereum, working closely with Ethereum Foundation researchers. Its technology is well regarded, but there is now very little money or activity on the chain.

Layer 2 · ScrollData as of 16 Oct 2026, 01:45 UK timeWebsite scroll.io ↗
Block time
6.87 s
L2BEAT stage
Stage 0

In one sentence

Scroll is a ZK Rollup that works like zkSync and Linea: every batch of transactions comes with a zero-knowledge proof for Ethereum to verify.

What sets it apart is the goal of bytecode-level compatibility with Ethereum: the machine code compiled from an Ethereum contract runs on Scroll as it is, with no change of compiler or code. That goes further than zkSync-style “language compatibility”, making migration almost free for developers, at the cost of harder proof generation.

Where it came from

  • From 2021: the team began researching zkEVMs, collaborating extensively with the Ethereum Foundation’s privacy and scaling research group, with much of the work open-sourced.
  • October 2023: Scroll mainnet launched.
  • 2024: the “Scroll Sessions” points campaign drew many users; in October the SCR token was issued and airdropped.

As with the other Layer 2s, gas is paid in ETH and SCR is a governance token. SCR’s market cap is only $4.2M.

l2beat riskData as of 16 Oct 2026, 01:45 UK time · source L2BEAT
Security stage: Stage 0 (ZK Rollup)
  1. Stage 0

    Still on "training wheels": proofs may not be live, or the operator can change the rules alone

  2. Stage 1

    Proofs are live, but a security council can still override or upgrade in an emergency

  3. Stage 2

    Fully governed by code and proofs; nobody can change outcomes unilaterally

If the sequencer failsIf the official sequencer goes down or censors you, can you still force your transaction in?
Self sequence
Good
State validationWho guarantees that the state the Layer 2 posts to Ethereum is correct
Validity proofs (ST, SN)
Good
Data availabilityIs all transaction data published on Ethereum, so the chain can be rebuilt if something goes wrong
Onchain
Good
Exit windowDo users have time to withdraw before the contracts are upgraded
None (can be upgraded instantly)
Poor
If the proposer failsIf the role that posts state to Ethereum stops, can users still withdraw
Self propose
Good

What is on-chain today

live dataData as of 16 Oct 2026, 01:45 UK time
Security stage (L2BEAT)Stage 0ZK Rollup (validity proofs)
Value secured (TVS)$40.6MAll assets on the chain, per L2BEAT
Token market cap$4.2MMarket cap rank #1799
TVL$7.9MAssets in DeFi protocols
Stablecoins$8.7MUSDT, USDC and others combined
24h DEX volume$686K30 days $10.9M
24h fees$19130 days $1,959
Block time (measured)6.87 saverage of the last 10K blocks
Stablecoin mix total $8.7M
  • USDT 48% $4.2M
  • USDC 49% $4.3M
  • Other 2% $178K
Top 6 protocols by TVL TVL on this chain
  1. Aave V3Lending$1.7M
  2. AmbientDexs$1.7M
  3. Honeypop DEXDexs$924K
  4. SyncSwapDexs$885K
  5. USX.CapitalStablecoin Wrapper$763K
  6. Tranchess YieldYield$429K

Sources: CoinGecko (market cap, supply), DefiLlama (TVL, stablecoins, DEX volume, fees, protocols), measurements from public nodes (block time, validators).

$7.9M locked and $686K of 24-hour DEX volume put it in the smallest tier of the Layer 2s on this site. The three ZK Rollups side by side:

compare

Three ZK Rollups

Data as of 16 Oct 2026, 01:45 UK time
TVL
zkSync$14.9M
Linea$24.1M
Scroll$7.9M
Stablecoins
zkSync$35.9M
Linea$36.6M
Scroll$8.7M
24h DEX volume
zkSync$1.3M
Linea$517K
Scroll$686K
24h fees
zkSync$361
Linea$2,294
Scroll$191
Block timeshorter is faster (log scale)
30ms100ms300ms1s3s10s30szkSynczkSync · 4.45 sScrollScroll · 6.87 sLineaLinea · 8.12 s
L2BEAT security stagethe higher the stage, the less you rely on the operator
zkSyncStage 0LineaStage 0ScrollStage 0

Dollar figures from DefiLlama; block times are measured averages over the last 10,000 blocks on public nodes (the last hour of slots for Solana); security stages from L2BEAT.

Strengths and trade-offs

Strengths
  • Bytecode-level compatibility with Ethereum, so contracts and tools need almost no changes.
  • Correctness is guaranteed by zero-knowledge proofs, and its technical direction matches Ethereum's research.
  • Lots of open-source work and research collaboration; strong technical reputation.
Trade-offs
  • Very little money or activity on the chain; DEX pools are shallow and prices are easily moved by small amounts.
  • L2BEAT rates it Stage 0, and contracts can be upgraded instantly.
  • Users drifted away after the airdrop, and SCR's market cap is small.
Investigating a project on Scroll? Check these first
  1. 01

    Pools are shallow: when a small token spikes, check liquidity and the top ten holders first.

  2. 02

    Confirm whether assets came through the official bridge or are wrapped tokens minted by a third-party bridge.

  3. 03

    Check upgradeability and owner permissions on Scrollscan, as on Ethereum.

Data and sources

  • Live figures: CoinGecko (SCR market cap), DefiLlama, L2BEAT and a public Scroll node (measured block time).
  • Mechanisms are based on the official Scroll documentation and L2BEAT’s project page.
  • This guide is educational and is not investment advice.
official links
Official Scroll links
Websitescroll.ioBlock explorerscrollscan.comDeveloper docsdocs.scroll.ioCode repositorygithub.com/scroll-tech/scroll

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