Multichain Decoding

How decoding contracts works in a multichain universe.

What is Multichain Decoding?

Multichain Decoding enables seamless analysis of smart contract data across multiple blockchains. With a single contract submission, users can automatically generate protocol tables across all supported EVM chains, simplifying cross-chain data access on Dune.

This feature unifies contract data views, streamlining the analysis of protocols deployed across various chains and making cross-chain insights more accessible.

Multichain decoding offers data freshness and latency comparable to regular decoding. For details on data freshness, see our data freshness page.

Get In Touch

Currently in closed alpha. If you’re interested in setting up multichain decoded views for your protocol, contact us at [e-mail]. We’d be happy to collaborate with you!

Currently Available Protocols

• As this feature is currently in closed alpha, here is a list of protocols with multichain decoded contract views available for immediate use. Contact us for any feedback you have.
• To view and explore these multichain decoded contract views, visit the linked protocol namespaces on Dune’s Data Explorer.

Uniswap

Protocol	Chains Available	Contract	Type	Event/Call	Table Name
uniswap_v2	arbitrum, avalanche_c, base, bnb, ethereum, optimism, polygon, zora	UniswapV2Factory	Event	PairCreated	uniswap_v2_multichain.uniswapv2factory_evt_paircreated
		UniswapV2Pair	Event	Swap	uniswap_v2_multichain.uniswapv2pair_evt_swap
uniswap_v3	arbitrum, avalanche_c, base, blast, bnb, celo, ethereum, linea, mantle, polygon, scroll, worldchain, zksync, zora	NonfungiblePositionManager	Call	Collect	uniswap_v3_multichain.nonfungiblepositionmanager_call_collect
			Event	Collect	uniswap_v3_multichain.nonfungiblepositionmanager_evt_collect
			Call	increaseLiquidity	uniswap_v3_multichain.nonfungiblepositionmanager_call_increaseliquidity
			Event	increaseLiquidity	uniswap_v3_multichain.nonfungiblepositionmanager_evt_increaseliquidity
			Call	decreaseLiquidity	uniswap_v3_multichain.nonfungiblepositionmanager_call_decreaseliquidity
			Event	decreaseLiquidity	uniswap_v3_multichain.nonfungiblepositionmanager_evt_decreaseliquidity
		UniswapV3Factory	Event	PoolCreated	uniswap_v3_multichain.uniswapv3factory_evt_poolcreated
		UniswapV3Pool	Event	Swap	uniswap_v3_multichain.uniswapv3pool_evt_swap
			Event	Mint	uniswap_v3_multichain.uniswapv3pool_evt_mint
			Event	Burn	uniswap_v3_multichain.uniswapv3pool_evt_burn

Safe

Protocol	Chains Available	Contract	Type	Event/Call	View Table
gnosis_safe	arbitrum, avalanche_c, base, blast, bnb, celo, ethereum, gnosis, optimism, polygon	Safe_v1_4_1	Call	execTransaction	gnosis_safe_multichain.safe_v1_4_1_call_exectransaction
			Call	execTransactionFromModule	gnosis_safe_multichain.safe_v1_4_1_call_exectransactionfrommodule
	arbitrum, base, blast, optimism, polygon	SafeL2_v1_4_1	Call	execTransaction	gnosis_safe_multichain.safel2_v1_4_1_call_exectransaction
			Call	execTransactionFromModule	gnosis_safe_multichain.safel2_v1_4_1_call_exectransactionfrommodule
	arbitrum, avalanche_c, base, bnb, celo, ethereum, fantom, linea, mantle, optimism, polygon, scroll, worldchain, zkevm	SafeProxyFactory_v1_4_1	Event	ProxyCreation	gnosis_safe_multichain.safeproxyfactory_v1_4_1_evt_proxycreation

Zora

Protocol	Chains Available	Contract	Type	Event/Call	View Table
zora	arbitrum, base, blast, ethereum, optimism, zora	ZoraTimedSaleStrategy	Event	SaleSet	zora_multichain.zoratimedsalestrategy_evt_saleset
		ZoraCreator1155FactoryImpl	Event	SetupNewContract	zora_multichain.zoracreator1155factoryimpl_evt_setupnewcontract

Lido

Protocol	Chains Available	Contract	Type	Event/Call	View Table
lido	arbitrum, bnb, mantle, optimism, polygon, scroll	wstETH	Event	Transfer	lido_multichain.wstETH_evt_Transfer
			Event	Approval	lido_multichain.wstETH_evt_Approval

Example Usage

Here are a few examples showing how you can use multichain decoded table views to simplify your analysis. Each example includes “before” and “after” queries to demonstrate how multichain views streamline cross-chain analytics.

Finding Zora Uniswap Collections

• Using multichain decoded tables
• Unioning single chain decoded tables

  SELECT * 
  FROM (
      SELECT 
          --this event is emitted on sale set updates too so we take distinct
          distinct
          l.blockchain
          , l.collection as nft_address
          , l.erc20zAddress as erc20_address
          , l.tokenId as token_id
          , nft.name as nft_collection_name
          , nft.defaultAdmin as creator
          , json_value(salesConfig, 'strict $.name') as nft_name
          , json_value(salesConfig, 'strict $.symbol') as nft_symbol
          , COALESCE(try(from_unixtime(cast(json_value(salesConfig, 'strict $.saleStart') as bigint))),timestamp '1970-01-01') as start_time
          , COALESCE(try(from_unixtime(cast(json_value(salesConfig, 'strict $.saleEnd') as bigint))),timestamp '2050-01-01') as end_time
          , l.poolAddress as uni_pool
          , l.evt_block_time
          , row_number() over (partition by collection, erc20zAddress, tokenId order by evt_block_time desc) as last_sale_set
      FROM ( SELECT collection, erc20zAddress, tokenId, salesConfig, evt_block_time, poolAddress, chain AS blockchain
            FROM zora_multichain.ZoraTimedSaleStrategy_evt_SaleSet ) l 
      LEFT JOIN ( SELECT name, defaultAdmin, newContract, chain AS blockchain
                  FROM zora_multichain.ZoraCreator1155FactoryImpl_evt_SetupNewContract ) nft 
            ON l.collection = nft.newContract AND l.blockchain = nft.blockchain
  ) 
  WHERE last_sale_set = 1

Gnosis Safe `execTransaction` Calls

• Using multichain decoded tables
• Unioning single chain decoded tables

  select chain, date_trunc('day', call_block_time) AS block_date, count(*) as cnt
  from gnosis_safe_multichain.Safe_v1_4_1_call_execTransaction
  group by 1, 2

How It Works

Requirements for Multichain View Construction ⚠️

To create a multichain decoded view, the following criteria must be met:

• Contracts must have the same ABI across chains.
• Contracts must be organized under the same project namespace and contract name (e.g., uniswap_v3, UniswapV3Pool).

This standardized labeling enables Dune to merge data from different chains into a single, unified view.

Submitting Multichain Contracts

When contracts with the same ABI are submitted across multiple chains, they are combined into a single cross-chain table, enabling consistent, streamlined data access and queries across chains.

Accessing and Navigating Tables

Multichain decoded contract tables are accessible in the Data Explorer, just like regular decoded contract tables. These multichain entries feature a distinct symbol and display the list of supported chains, clearly indicating they span multiple chains.