Cosmos EVM chains can use two types block explorers: an EVM explorer and a Cosmos explorer. Each explorer queries data respective to their environment with the EVM explorers querying Ethereum-formatted data (blocks, transactions, accounts, smart contracts, etc) and the Cosmos explorers querying Cosmos-formatted data (Cosmos and IBC transactions, blocks, accounts, module data, etc).

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List of Block Explorers​

Below is a list of open source explorers that you can use:
ServiceSupportURL
Ping.PubcosmosGithub Repo
BigDippercosmosGithub Repo
BlockscoutethereumGithub Repo

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Cosmos & EVM Compatible explorers​

As of yet, there is no open source explorer that supports both EVM and Cosmos transactions. Mintscan does support this but requires an integration.