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Questions tagged [hyperledger]

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration, hosted by The Linux Foundation, including leaders in finance, banking, IoT, supply chain, manufacturing and technology.

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration, hosted by The Linux Foundation, including leaders in finance, banking, IoT, supply chain, manufacturing and technology. (https://www.hyperledger.org/)

Code and documentation is available at: https://github.com/hyperledger

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Hyperledger Fabric - Core.yaml

I see a lot of examples for Hyperledger Fabric where I don't find core.yaml file in all examples. I see a lot of other files. And at many places, core.yaml is referred. Is there any other file, that corresponds to it? From where this, core.yaml…
Raj Wadhwa
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How do we enforce privacy while providing tracing of provenance using multiple channels in Hyperledger Fabric v1.0?

In Hyperledger Fabric v0.6, a supply chain app can be implemented that allows tracing of provenance and avoids double-spending (i.e., distributing/selling items more than it has) and thus avoids counterfeit. As an example, when a supplier supplies…
A Pantola
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hyperledger fabric make error :"goimports: command not found"

when I build make the hyperledger fabric project ,I have the following error.but I have install the goimports successfully. To find the reason, I run ./scripts/golinter.sh alone, and there is no such error.what is the error reason,when I make the…
kuku
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Hyperledger Test Network - failed to create new connection: context deadline exceeded

I'm trying to create a channel in the test-network in Hyperledger Fabric samples: localhost:~/fabric-samples/test-network$ ./network.sh createChannel but I get this error: Error: failed to create deliver client for orderer: orderer client failed to…
Daniele Chirivì
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hyperledger configtxgen error

I am actually trying to build two blockchains on two diffents VPS. The first one is working but after many hours of research, i didn't find why the second blockchain don't want to build. I built the crypto-config folder, it is OK, but when I try to…
karl vignon
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Error: Cannot find module './api' (Hyperledger composer)

After installing Hyperledger Composer cli from this page, I tried to call composer command but got this error: module.js:549 throw err; ^ Error: Cannot find module './api' at Function.Module._resolveFilename (module.js:547:15) at…
AshT
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Adding attributes to IBM Bluemix Blockchain CA(membersrvc.yaml)

I'm working on a proof of concept for blockchain. I've am using bluemix network for blockchain and deploying my application, which I develop locally. I want to test the CA functionalities and want to add users with attributes to the membersrvs.yaml…
tortuga
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Key differences between Hyperledger Aries and Hyperledger Indy?

Both Hyperledger Aries and Hyperledger Indy are platforms for building distributed ledger applications for identities. What are the main differences between them? When to choose one over the other to implement a blockchain solution?
asing177
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How to add a new orderer in a running hyperledger fabric network using raft?

I want to add a new orderer to my existing running network. Currently my network is as follows : docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS …
Adarsha Jha
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How to secure hyperledger fabric state database?

I have a use case where one individual(i1) hosts hyperledger fabric system. Other individual(i2) is also interested to use the system, but is unsure if his data is secure in the system. I can create two separate channels or even make private data…
Bukks
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Hyperledger Indy ERROR: Pool overlaps with other one on this address space

I'm working on this https://github.com/hyperledger/education repository and When i try to run ./manage up, i'm getting this error . ERROR: Pool overlaps with other one on this address space
Brajesh Singh
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Best practice to save files in blockchain

What is the best practice to save files as part of a blockchain's data? I have tremendously large files to be saved. Can't we save these file on cloud storage (centralized solution like dropbox), and link them with blockchain data using a file…
Bassel Kh
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Remove(Delete) existing channel

I built fabric network using kafka. Then, I created 2 channels such as "channel_A" and "channel_B". Now, I don't need "channel_B". So, I want to remove(delete) this "channel_B" from my network. Is there any way to remove(delete) it?
dr_devbc
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hyperledger fabric Failed to generate orderer genesis block

Generated byfn.sh my first network, the emergence of configtxgen can not generate genesis block. My error is as follows: [root@demo first-network]# ./byfn.sh generate Generating certs and genesis block for with channel 'mychannel' and CLI timeout of…
kaifoon
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Can identities running on Indy be referenced in Fabric blockchain?

As it stands today, Can identities running on Indy be referenced in Fabric blockchain (like in a smart contract)?
drecute
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