21 votes
Accepted

What advantages and disadvantages does Open Blockchain / Hyperledger / Fabric have over Ethereum?

Open Blockchain (OBC) is the IBM's current contribution (open-sourced) to the Hyperledger consortium led by the Linux Foundation. IBM says that it does not assume that the Hyperledger will necessarily ...
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5 votes

What advantages and disadvantages does Open Blockchain / Hyperledger / Fabric have over Ethereum?

Names change and here's where things stand currently. The Hyperledger Project is basically a collection of blockchain technologies, contributed by various companies. IBM's contribution to it is ...
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  • 77.9k
5 votes

Hyperledger Consensus protocol.

Keep in mind that Hyperledger is a Linux Foundation consortium and refers to multiple, independent blockchain platforms. The above is missing the Consensus algorithms from Hyperledger Sawtooth, so ...
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4 votes

how to reach consensus berween only 2 peers?

The consensus algorithm employed in ethereum is an automatic one. it serves as a way of agreement between the nodes in the blockchain network. It doesn't have any collision what so ever with any ...
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3 votes

How can I implement a custom blockchain?

If your research is purely into consensus algorithms and you want to customize or write your own, PyEVM allows pluggable consensus algorithms. You can find more information in this old discussion. ...
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3 votes

Hyperledger Vs Ethereum for supply chain management?

I've been researching this myself for the last few weeks. The short answer to your question is that Hyperledger is fundamentally superior to ethereum for this use case. With ethereum, you are not in ...
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  • 347
3 votes

What purpose has blockchain in this use case? - tracking seafood

I guess the good illustration here would be to imagine the case when lets say the truck a/c malfunctions and fish is not stored at the appropriate temperature during the transportation from ship to ...
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  • 190
3 votes

How do you start learning about blockchain programming?

A great course is offered by Coursera which was developed by Princeton University. Titled, Bitcoin and Cryptocurrency Technologies (and it's free). Even though it is a little outdated and not specific ...
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  • 1,540
2 votes

What purpose has blockchain in this use case? - tracking seafood

The reason blockchain is a good solution for this use case is you have many players in this space--fishing boats, transportation companies, seafood companies, restaurants, retail stores, consumers. ...
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2 votes

What purpose has blockchain in this use case? - tracking seafood

You could have sensors simply store data offline, and that would work, but the data could be forged and so the integrity could be compromised. The idea behind tracking the supply chain on the ...
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2 votes

DApps with fiat currency?

In Ethereum, the closest you can get to a fiat currency is to use DAI, a decentralised stable coin. It was created by MakerDao and, despite being at the beginning, they are doing a great job. DAI is ...
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2 votes
Accepted

Difference between ethereum blockchain and Hyperledger blockchian

Both permissioned (or private) and public blockchains have consensus algorithms and share the same algorithms. Generally consensus algorithms fall into 2 classes: Nakamoto-style or Lottery consensus. ...
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2 votes

Hyperledger Consensus protocol.

Confining the question to Hyperledger Burrow1 - which uses an Apache-licensed implementation of the EVM - the default consensus engine is Tendermint (site; white paper). From the docs: ...
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2 votes
Accepted

Scaling Solutions For Hyperledger Besu?

There are two types of scaling solutions for Ethereum: layer 1 and layer 2. Layer 1 Layer 1 refers to the basic Ethereum instrastructure. Changes/improvements to layer 1 mean typically a hard fork. ...
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2 votes

What are the differences between Hyperledger Burrow and Ethereum?

I can only speak to the Burrow implementation in Hyperledger Sawtooth Lake. It is implemented as a transaction family called seth. This is an EVM implementation. As such it is agnostic toward high-...
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  • 50.6k
2 votes

ERC725 and ERC735 vs Hyperledger Indy (decentralized identity/self-sovereign identity)

Which platform data structure, security, etc is better equipped to support a pan-region decentralized identity platform with more than 280 million people? Sadly, none! As of Nov 2018, we haven't ...
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2 votes

Why don't private blockchain networks that do not charge for transactions charge a fee when processing ethereum/ proprietary token on the network?

The public network charges for transactions which make it popular with the public. It's more complicated than this. Charging for transactions creates an incentive structure for miners. In a public ...
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1 vote
Accepted

Deploy SmartContract to local Hyperledger-Besu network using Brownie

The problem is due to Besu not fully following the standard JSON-RPC API for eth_getTransactionByHash. After signing the tx, brownie checks the status of the tx using eth_getTransactionByHash and ...
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1 vote

What is the best version of Hyperledger to use with Ethereum

Hyperledger Besu is just an Ethereum client implementation while Hyperledger Fabric is a completely different technology thus Besu may interact with Ethereum mainnet directly while for Fabric you will ...
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1 vote

How to disable deployment of smart contracts on besu private network?

There is a Similar question, and the answers are: Filter contract creation transactions on validator/mining nodes Make CREATE opcode unreachably costly.
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1 vote

Failed to extract secret from Hashicorp vault production mode - EthSigner - Hashicorp Vault

Most likely you are using v1 secret engine. dev mode by default uses v2 secret engine and EthSigner also expects v2 secret engine. In production mode, you have to explicitly set v2 when creating it. ...
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1 vote

How to Setup a Private Network in Hyperledger Besu?

What consensus type do you want to use ? You can find a tutorial to create a private network depending on the consensus: https://besu.hyperledger.org/en/stable/Tutorials/Private-Network/Create-IBFT-...
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1 vote

What are the differences between Monax/Hyperledger Burrow and Quorum?

There are many differences so I'll outline major ones. For the reference, Monax is the maker and now contributor into Burrow. Quorum is an open source fork of a well established Ethereum client: geth....
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1 vote

Data availability in Ethereum/Hyperledger-fabric (Blockchain)

I will answer your question from Ethereum perspective. Ethereum is a public blockchain and you can also create a private blockchain ethereum which is more suitable in your case. Users doesn't need to ...
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1 vote

Why don't private blockchain networks that do not charge for transactions charge a fee when processing ethereum/ proprietary token on the network?

You can run private EOS networks to take advantages of the fee-less transaction feature in a controlled setting.
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  • 141
1 vote

DApps with fiat currency?

The answer is actually yes but requires that you clarify the meaning of DApp. In most cases a DApp solution will involve both an onchain component (smart contract) and an offchain component (e.g. web ...
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  • 291
1 vote

DApps with fiat currency?

You can develop the DApp to do whatever you want, for example, you can make a cryptocurrency exchange DApp and accept any payment in fiat money you want. But this DApp would have to use another ...
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  • 3,366
1 vote

What purpose has blockchain in this use case? - tracking seafood

This use case sounds like the quality seal you often encounter on the label of many products, except now, you can verify it on your own.
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  • 296
1 vote

Is Etherum or Hyperledger be helpful for Money Lending business without Miners reward without using Cryptocurrency?

From what you described, I think you're looking for a private/permissioned blockchain solution, there are a few solutions out there including : Hyperledger Fabric by IBM just hit 1.0 in July Quorum ...
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  • 366

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