FAQ - LF Decentralized Trust - LF Decentralized Trust
Atlassian uses cookies to improve your browsing experience, perform analytics and research, and conduct advertising. Accept all cookies to indicate that you agree to our use of cookies on your device.
Atlassian cookies and tracking notice
, (opens new window)
Atlassian uses cookies to improve your browsing experience, perform analytics and research, and conduct advertising. Accept all cookies to indicate that you agree to our use of cookies on your device.
Atlassian cookies and tracking notice
, (opens new window)
FAQ
Updated Mar 20, 2024
FAQ
Mar 20, 2024
I am having problems logging in to Confluence/Jira etc?
Can I use Hyperledger within my product? What are the license requirements?
How much does Hyperledger cost?
Do I need to join Hyperledger in order to use it in projects?
How do I contribute a source base to Hyperledger?
Which Hyperledger project will allow me to create a blockchain network with smart contracts?
Does Hyperledger support smart contracts?
What consensus mechanism does Hyperledger use?
Does Hyperledger require a large amount of energy?
10
Where is the public Hyperledger network?
11
Where can I get technical help regarding one of the Hyperledger projects?
12
What should I do when I am not getting answers to my questions?
13
Where can I find out more information regarding Hyperledger?
14
Who is using Hyperledger projects?
15
Where can I find information about the training for Hyperledger and its projects?
16
Where can I get answers related to the content in the free EdX MOOC?
17
How do I manage a meeting for Hyperledger using Zoom?
I am having problems logging in to Confluence/Jira etc?
Please follow the instructions here to make a Linux Foundation account.
Can I use Hyperledger within my product? What are the license requirements?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger. Based on section 13 of the
Hyperledger Charter
, all Hyperledger source code is licensed under Apache 2.0 license, unless an appropriate exception has been obtained. A summary of the license can be found at
; however, we recommend consulting a legal expert who can help you understand the license of Hyperledger source code more clearly, including any dependencies that the source code has.
How much does Hyperledger cost?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger.
All projects are open source, which means that you can download and use the software free of charge.
When you deploy the blockchain network using one of the Hyperledger frameworks (e.g., Hyperledger Fabric), you will need to pay for the hardware necessary to run the underlying blockchain network, as well as, the application code that you write to access the blockchain network. This hardware could be located on-premise or in the cloud. This would be the same model that you would have with any other type of software that you might need to install to run your use case.
Do I need to join Hyperledger in order to use it in projects?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger.
All projects are open source, which means that you can download and use the software free of charge without joining Hyperledger.
How do I contribute a source base to Hyperledger?
There are two ways to contribute a source base to Hyperledger.
Hyperledger Labs -
details the requirements and process to propose a lab.
Hyperledger project - The
project lifecycle
details the process that a project must go through in order to be accepted into incubation, as well as, to move to an active project within Hyperledger.
Which Hyperledger project will allow me to create a blockchain network with smart contracts?
We have six different DLTs (Distributed Ledger Technologies) that you can use to set up your own blockchain network (in alphabetical order):
Besu
Hyperledger Fabric
Hyperledger Indy
Hyperledger Iroha
Hyperledger Sawtooth
All of the frameworks, except Hyperledger Indy, are general purpose -- meaning that you can store whatever type of asset you want. Hyperledger Indy is a framework that is focused on decentralized identity. Besides the project pages, you can also have a look at the
Hyperledger Whitepaper
, which explains the different projects that we have. Also, we have a
video
Business Blockchain Projects Hosted by Hyperledger
, that explains all of the projects that are hosted by Hyperledger in just under 16 minutes. There are also two architectural white papers that go into details on each of the frameworks with regards to
consensus
and
smart contracts
If you have any questions regarding the different projects, the
mailing lists
and
chat
are a good place to reach out. We have mailing lists and chat channels for each of the different projects.
Does Hyperledger support smart contracts?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger. The architectural white paper covering
smart contracts
goes into specifics about which of the frameworks supports smart contracts.
What consensus mechanism does Hyperledger use?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger. The architectural white paper covering
consensus
goes into specifics about the consensus algorithms that each of the frameworks uses.
Does Hyperledger require a large amount of energy?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger. None of the Hyperledger frameworks utilize proof of work (PoW), as they do not require mining. Because the frameworks are designed for permissioned networks where the actors are known, they can use consensus mechanisms that are crash fault tolerant or byzantine fault tolerant, which do not require the amount of compute power that PoW does. The architectural white paper covering
consensus
goes into specifics about the consensus algorithms that each of the frameworks uses.
Where is the public Hyperledger network?
Hyperledger is an open source collaborative effort that is hosted by The Linux Foundation. There are a number of
different projects
that exist within Hyperledger. The different frameworks within Hyperledger are designed for enterprise business blockchains. You can use the frameworks to set up your own networks. As such, there is no public network.
Where can I get technical help regarding one of the Hyperledger projects?
Hyperledger projects are open source projects and are supported via the community.
If you have any questions regarding the different projects, the
mailing lists
and
chat
are a good place to reach out. We have mailing lists and chat channels for each of the different projects.
Project
Chat Channel
(to start with)
Mailing List
Project
Chat Channel
(to start with)
Mailing List
Hyperledger Avalon (EOL)
#avalon
Besu
#besu
Hyperledger Bevel
#bevel
Hyperledger Burrow (EOL)
#burrow
Hyperledger Cactus
#cactus
Hyperledger Caliper
#caliper
Hyperledger Cello
#cello
Hyperledger Explorer (EOL)
#hyperledger-explorer
Hyperledger Fabric
#fabric
Hyperledger FireFly
#firefly
Hyperledger Grid (EOL)
#grid
Hyperledger Indy
#indy
Hyperledger Iroha
#iroha
Hyperledger Quilt (EOL)
#quilt
Hyperledger Sawtooth (Archived)
#sawtooth
Hyperledger Ursa (EOL)
#ursa
Hyperledger Solang
#solang
solang
Hyperledger Transact
#transact
If you need more detailed help that you are willing to pay for, you can check out the
vendor directory
, which is a listing of member companies that provide products and services related to Hyperledger.
What should I do when I am not getting answers to my questions?
There are a few things that can cause your questions not to be answered when reaching out on the chat channels or mailing lists (as described in
this FAQ
).
Are you using the correct chat channel or mailing list? Specifically, there is a separate chat channel and mailing list for each of our projects. Make sure that you are using the chat channel or mailing list for the project that you are working with.
Have you been very specific about what your problem is and have you provided as much detail as possible for someone to be able to troubleshoot your issue? The more information that you can provide, the more likely it is that you will get answers to your questions. Here is a
guide on asking smart questions
Did you ask your question over the weekend or even more than a few days ago? On chat, the responses you get will sometimes depend on who is available when your question is asked. If it has been a few days since your question was asked, it is always okay to quote your original question and bring it back into the current conversation.
Where can I find out more information regarding Hyperledger?
There are a number of different resources available that will allow you to get more information about Hyperledger.
hyperledger.org
- The main website, which contains a wealth of information and resources.
Chat
- This is our open source chat platform for interacting with all of the different projects that we host at Hyperledger. We have separate channels for each of our different projects, as well as, our working groups. This is the best way to reach out to the technical community that is deeply involved in the development of our different projects.
Mailing Lists
- We also have a number of different mailing lists for our different projects and working groups. If you have questions that are better suited to the distributed nature of our technical community, this is the place to ask them.
Wiki
- The Wiki has a section for each of our projects and working groups. You can find some great information on the Wiki.
Source Code
- Of course, because of all of the projects are open source, you can directly download the source code and use it.
EdX
Blockchain for Business - An Introduction to Hyperledger Technologies
- This free course provides a primer to blockchain and distributed ledger technologies and will help you get started building blockchain applications with Hyperledger frameworks.
Webinars
- Upcoming or past webinars that cover a variety of topics.
Who is using Hyperledger projects?
Check out the
Blockchain Showcase
, which lists a number of cross-industry projects that are using Hyperledger frameworks and tools.
Where can I find information about the training for Hyperledger and its projects?
Where can I get answers related to the content in the free EdX MOOC?
As a first step, you should try the forums within EdX. This is a community moderated forum that will hopefully be able to answer your questions. Definitely check out the
guide on asking smart questions
. If you feel the question would be better answered by the project-specific community, check out the
"Where can I get technical help regarding one of the Hyperledger projects?" FAQ
How do I manage a meeting for Hyperledger using Zoom?
There is some information in the wiki
{"serverDuration": 17, "requestCorrelationId": "46d7dd0099844465a269ff430abc9552"}