Block Explorer

Explore Your Blockchain with an API-enabled Block Explorer

When building blockchain networks and applications you need to be able to explore the chain. With Kaleido's block explorer you can easily gain insights by exploring block data in real-time.

What it

Block Explorer


What it is

Block Explorer

A block explorer is a dashboard that provides real-time and historical snapshots of your blockchain. This is critical for monitoring transactions and helping business teams get value from applications. You gain new insights with real-time visibility into the transaction history and operations of your blockchain network.

Visualize your ledger, smart contracts and transactions, with a dashboard backed by a time series database and robust APIs.

Fully Transparent Dashboard

Block Explorer allows you to view on-chain activities by easily browsing blocks, transactions, smart contracts, gas rates, gas consumption and more in your environment.

Customized Data Views

Leverage the intuitive ledger API to create customized views of data on the chain. Drill down into block detail and extract patterns from relevant subsets of information.

Source Code Verification

Integrated source code verification feature to turn indecipherable byte code of a smart contract into plain text that can be verified by a counterparty prior to the issuance of a transaction or query.


Are You a ConsenSys Quorum Blockchain User?

Kaleido is the preferred migration partner working with ConsenSys to ensure continuation of the Quorum Blockchain service. If you’re interested in continuing your service by migrating to Kaleido, please contact our team and we'll be happy to assist.

Hyperledger Fabric at a glance


Built for permissioned networks


Data isolation and strict governance enabled by Hyperledger Fabric certificate authority

Transaction Flow

Unique Execute-Order-Commit endorsement model where transactions are initially executed on a set of peers while ordering service handles packaging and delivery

Consensus Algorithms

Ordering can be switched based on the needs of the environment with pluggable consensus algorithms

Smart Contract Language

Go, Java, Node.js

What Is Hyperledger Fabric?

Since launching in 2015, Hyperledger Fabric has been a top choice for enterprises looking to build apps on permissioned blockchain networks. The modular architecture is capable of powering large-scale applications that require enterprise-grade data security.

The ability to protect certain details of peer transactions has made Hyperledger Fabric a go-to protocol for industries like financial services, supply chains, and the insurance industry. It works for complex use cases that involve personally identifiable information and proprietary business data.

Hyperledger Fabric is one of the many protocol choices available on Kaleido. With a full suite of plug and play services, flexible cloud deployment options, and powerful APIs, Kaleido is the easiest way to run a Fabric network anywhere.

Benefits of Hyperledger Fabric

Hyperledger Fabric is an open source project designed to handle enterprise-grade use cases. Key differentiators are its quick transaction throughput and its modularity, allowing for more innovation and optimization regardless of industry use cases. Other benefits include scalability and security, key pillars of any enterprise application.

Modular & Pluggable

Hyperledger Fabric is a modular blockchain framework that allows you to plug in different components, such as consensus algorithms and membership services, and tailor networks to your needs

Open source

Part of the Hyperledger project of the Linux Foundation, Hyperledger Fabric is an open source protocol that allows the enterprise to build custom applications and limit vendor risks


With a high level of security for enterprise users, Fabric uses a permissioned network to prevent unauthorized access

Hyperledger Fabric certified service provider badge

Our Hyperledger Fabric Expertise

Kaleido is a Hyperledger Certified Service Provider (HCSP) with a deep expertise in helping enterprises successfully adopt Hyperledger tools. Our founding partners are also active with the Hyperledger Foundation. Sophia Lopez is a General Member representative on the Hyperledger Foundation Governing Board and Jim Zhang is a member of the Hyperledger Foundation Technical Oversight Committee.

Talk to an Expert

Benefits of Quorum

Quorum is a blockchain protocol specially designed for use in a private blockchain network, where there is only a single member owning all the nodes or a consortium blockchain network where multiple members each own a portion of the network.


Quorum is designed to be highly scalable, with low transaction latencies and the ability to support a higher number of transactions per second than other blockchain protocols. This makes it well-suited for use in high-volume applications.


Quorum includes a number of security features that are designed to protect sensitive or proprietary data, like private transactions that allow network participants to transact without revealing the details of their transactions to the rest of the network.


Quorum is based on the Ethereum protocol and can support a wide range of decentralized applications and smart contracts. It is also highly modular and customizable so that it can be tailored to the needs of specific use cases.

Gas-free transactions

There is no cost required to submit transactions to a Quorum network, unlike Ethereum, which requires the payment of high and unpredictable gas fees to submit transactions.

Hyperledger Fabric certified service provider badge

Our Hyperledger Fabric Expertise

Kaleido is a Hyperledger Certified Service Provider (HCSP) with a deep expertise in helping enterprises successfully adopt Hyperledger tools. Our founding partners are also active with the Hyperledger Foundation. Sophia Lopez is a General Member representative on the Hyperledger Foundation Governing Board and Jim Zhang is a member of the Hyperledger Foundation Technical Oversight Committee.

Talk to an Expert
How it works

How it Works

The Kaleido Block Explorer is an environment-specific console that provides realtime and historical snapshots of the blockchain.

It can be leveraged for both high-level analytics (e.g. chain height, commonly called contracts, transaction rate, etc.) and more granular insights (e.g. block contents, transaction hashes, sending accounts, etc.).

Search Bar

Use the search bar to jump directly to a specific subset of the ledger. The search bar accepts three valid inputs:

  • Block Number: The number of the desired block for inspection. For example, enter 0 to see the contents of the chain’s genesis block. Bear in mind that the Kaleido consensus mechanisms may cut blocks regardless of transaction presence (PoA and IBFT output multiple blocks in a minute). As a result, if you are operating in an environment with low transaction throughput and running PoA or IBFT consensus, a large allotment of blocks will be devoid of transactions.
  • Contract Address: callable address of an Ethereum smart contract deployed within the environment.
  • Transaction Hash: The ID of a specific transaction. A transaction implies that byte code has been executed by the EVM. These include deployments of smart contracts and subsequent invocations.


By default, the Block Explorer home screen displays the 25 most recent blocks on the chain. As mentioned above, blocks are minted in accordance with the consensus protocol’s system configuration and do not necessarily contain transactions. Click the block number to see the contents of a specific block. 


Transactions are listed chronologically with the most recent transaction at the top of the list. The transaction table exposes truncated values for transaction hash and the sending account. Additionally, if the transaction is a smart contract deployment, it is denoted with a 'New Contract Created' tag.

Enterprise Use Cases
Run Better on Kaleido

Hyperledger Fabric is a private blockchain that allows developers to create subnets, or channels, meaning that certain proprietary or personal information can remain confidential. This makes Fabric a protocol of choice for industries like financial services, insurance, and supply chain management.

Supply Chains

Hyperledger Fabric networks can increase transparency and traceability of transactions within the network. This transparency can be used to monitor real-time location data, limit fraud and counterfeit goods, and track ESG efforts.

Digital Assets

Complex multi-party business networks built on Fabric can easily tokenize assets, transact instantly, share data, and eliminate cumbersome paperwork as financial business flows are automated.


Moving insurance transactions to blockchain can eliminate fraud, automate claim processing, and digitize legacy systems. Hyperledger Fabric also allows stakeholders to automate Know Your Customer (KYC) processes via smart contracts.
Why Kaleido

Everything You Need to Build Enterprise-Grade Blockchain Networks

Try Truffle on Kaleido

Kaleido's blockchain platform makes it radically simple for businesses to create complete web3 networks and applications. With just a few clicks, you can launch a blockchain network, deploy it globally, set up governance, and start plugging in familiar services.

Quickly Launch Blockchain

Launch blockchain networks in minutes
Choose from leading protocols including Ethereum, Polygon Edge, Hyperledger Fabric and more
Select permissioned chains, appchains,  sidechains, or consortium chains
Deploy on AWS, Azure or on-prem
Stand up nodes worldwide in regions of your choice

Simplify Development to Get to
Production Fast

Access 40+ plug-and-play services for wallets, key management, storage, data, and more
Automate management and deployment with our fully API-enabled platform
Turn any smart contract into familiar APIs with our smart contract API generator
Make digital assets, NFTs, and consortiums easy with our dedicated solutions
Mint, manage, and burn tokens at scale with robust tooling

All Backed by Enterprise-Grade Infrastructure and Support

Modern cloud scale architecture
Built-in high availability and disaster recovery
ISO 27k and SOC 2 Type 2 certified
Integrate seamlessly with existing internal systems
Open source tech and no vendor lockin
24x7 support and SLAs

Enterprise Use Cases Run Better on Kaleido

Quorum is a protocol of choice for industries like financial services, insurance, and supply chain management where enterprise-grade.

Additional Resources
Learn More About
Block Explorer
Ready to Get Started With
Block Explorer

Common Questions about Block Explorers

What is a block explorer?

A block explorer is a tool that makes it possible to see realtime and historical blockchain data. Block explorers can be leveraged for both high-level analytics on things like chain height, transaction throughput, and smart contract usage, as well as granular insights into things like block contents, specific transactions, and transacting addresses. This makes block explorers a useful tool for monitoring and analyzing blockchains.

How do block explorers work?

Block explorers work by connecting to a specific blockchain and downloading a copy of the blockchain's transaction and block data. The block explorer then indexes this data and makes it searchable and easily accessible to users through a web interface.

When a transaction is made on a blockchain, it is broadcast to the network and included in a block along with other transactions. Each block is then added to the end of the blockchain in a linear, chronological order. The block explorer maintains a copy of the entire blockchain, which allows it to display the transaction and block data to users in real-time as new blocks are added.

Block explorers use various techniques to keep their copy of the blockchain up to date, such as using APIs provided by the blockchain network or subscribing to transaction and block data feeds. Some block explorers also allow users to query the blockchain using specialized search tools, such as by searching for a specific transaction or block by its hash or by looking up the balance of a particular address on the blockchain.

Who uses block explorers?

Block explorers are used by a wide variety of people, including:

  1. Blockchain developers: developers who are working on building applications or services on top of a blockchain use block explorers to monitor their application's performance.
  2. Blockchain users: individual users of blockchain networks use block explorers to track the movement of their tokens and verify the status of their transactions.
  3. Blockchain network administrators: network administrators use block explorers to track the usage of their blockchain network, analyzing trends and highlighting issues.