Document Exchange

Securely store, manage and share files in blockchain networks

Document Exchange makes it easy to add off-chain file storage and sharing to blockchain networks

What it

Document Exchange


What it is

Document Exchange for Blockchain Networks

Many blockchain use cases require the pinning of on-chain transactions to securely stored documents that cannot be held on-chain, either because they are too large or the information is too sensitive to put into your immutable shared ledger. Kaleido’s Document Exchange was created for these use cases, providing a private store solely for your individual use. We provide the mechanism to generate hashes that uniquely tie an on-chain asset, token, or transaction to off-chain data. If you need an IPFS distributed peer-to-peer file share system where every member of your consortium can access every file, please see our IPFS File Store service.

Easily Share Documents Using Secure App2App Messaging

Kaleido’s Document Exchange allows you to securely forward a copy of a document in your private library to the document store of another participant using our encrypted App2App Messaging Service.

Conveniently Connect to Your External Storage

Document Exchange provides APIs for managing the lifecycle of documents* and the ability to connect your private store to an external storage system such as AWS’ S3 or Azure Blob.

Robust and Developer-friendly

The service supports folders to conveniently organize files while allowing you to also address the files by hash regardless of where they are located. Interacting with the service can be done through its graphical user interface, RESTful and based APIs.


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.
How it works

What Makes Polygon ID Different on Kaleido

Kaleido makes it easy to build applications that go beyond a simple login to create an identity layer that gives people more control and portability of their data.

Kaleido offers identity as a service with hosting of both claim and verifier servers. Our platform then brings identity solutions to life with pre-built, pluggable services like wallets, tokens, and public and private connectivity. Meet the demands of the most complex use cases with fully customizable identity apps.

Pluggable Tools

Match identity as a service with web3 building blocks to make complete solutions


Build on an ISO 27k and SOC 2 certified platform with built-in HA/DR, 24/7 support, & SLAs

Custom Configurations

Connect directly to public chains or build on custom, permissioned environments

User Friendly

Couple zk-backed security with simple-to-use interfaces for business teams and end users

Flexible Deployments

Deploys on popular cloud properties, hybrid options, and geographic regions

Polygon Approved

Get support from Polygon approved implementation experts to architect next gen identity solutions

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

Use the Document Exchange service to securely upload and transfer files within a Kaleido environment. With blockchains being poorly suited for large payloads and sensitive data such as PII, an ancillary file sharing utility that can exist next to the chain provides immense benefit at both a business and security level. Transactions simply need to reference a file’s hash, rather than dealing with the file contents directly.

Any uploaded or received file can be conveniently organized using intuitive folder structures, and persisted in either Kaleido hosted storage or cloud-delegated and user-controlled services such as AWS S3 Buckets or Azure Blob containers. 

All transferred data is deterministically hashed, signed, compressed and asymmetrically encrypted in flight using proven public key infrastructure techniques, offering provable guarantees that only the intended recipient can effectively decrypt the packet. 

The service leverages the On-Chain Registry service for address look up and certificate functionality, as well as the Kaleido network’s Kafka backbone for high throughput, fault tolerant reliable delivery and transport. Interaction with service is flexible, with support for the in-console graphical user interface, Kaleido RESTful APIs and connections for reliable event notification.

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 Manage Files in 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 consortia 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 compliant
Integrate seamlessly with existing internal systems
Open source tech and no vendor lockin
24x7 support and SLAs

Use Cases

Picture of a Bank in Hexagons

Decentralized finance

Make AML & KYC instant and automated with verified identities
A Person Gaming in Hexagons

Digital onboarding

Verify the identity of users remotely and securely with immutable IDs

Healthcare applications

Transfer data, verify IDs, and reduce administrative costs with pluggable DID solutions

Self-sovereign ID

Allow people to fully own and control access to their data with immutable identity

Voting and elections

Eliminate fraud with secure and transparent voting processes that are free manipulation

Loyalty and rewards

Simplify reward and loyalty programs with automated and verified connections to customers

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
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Document Exchange
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Document Exchange