Most viewed questions in Blockchain

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What happens to the short chain when the nodes follow the long chain?

This situation occurs every day in the ...READ MORE

Jul 16, 2018 in Blockchain by digger
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1,094 views
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What is the peer node start in hyperledger?

Nodes are the fundamental element of the ...READ MORE

Jul 9, 2018 in Blockchain by digger
• 26,740 points
1,093 views
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Hyperledger-Fabric Endorsement Policy: What are Members and Admins?

The goal of endorsement policy to set ...READ MORE

Jul 13, 2018 in Blockchain by Christine
• 15,790 points
1,092 views
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JAVA Retrive current bitcoin price with JSON

You should start log Exceptions when you ...READ MORE

Feb 28, 2022 in Blockchain by Soham
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1,089 views
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Problem installing bitcoin wallet in Ubuntu.

You install Bitcoind using the following commands: sudo ...READ MORE

Aug 22, 2018 in Blockchain by slayer
• 29,370 points
1,089 views
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Repeating transactions hangs - web3js, local geth

If you are sending transactions back-to-back from ...READ MORE

Sep 24, 2018 in Blockchain by digger
• 26,740 points
1,088 views
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how do we register our assets in hyperledger?

First of all, the chaincode (or smart ...READ MORE

May 26, 2018 in Blockchain by Johnathon
• 9,090 points
1,088 views
+1 vote
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Where is the Open API Specification generated by composer-rest-server stored in a Hyperledger Composer?

By default, the docs are at your ...READ MORE

Mar 26, 2018 in Blockchain by Christine
• 15,790 points
1,088 views
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1 answer

How to trigger change blockchain network request on MetaMask

was finally able to find the answer: await ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
• 9,680 points
1,087 views
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Testrpc can't find log handlers

This doesn't usually happen, maybe the log ...READ MORE

Jan 18, 2019 in Blockchain by Omkar
• 69,220 points
1,087 views
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blockchain/service-my-wallet-v3 - Connection refused

Hey, if you have installed blockchain/service-my-wallet properly, ...READ MORE

Sep 18, 2018 in Blockchain by slayer
• 29,370 points
1,087 views
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1 answer

In a Blockchain, how difficult is it to modify the third to last block?

Technically, it's not difficult at all, all ...READ MORE

Apr 20, 2018 in Blockchain by Christine
• 15,790 points
1,086 views
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Can't open a to big .csv file in python

You can't "split a file", but you can read ...READ MORE

Sep 3, 2018 in Blockchain by slayer
• 29,370 points
1,082 views
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1 answer

How to solve Runtime error when querying Hyperledger?

OCI is open container initiative.. The error ...READ MORE

Jul 9, 2018 in Blockchain by slayer
• 29,370 points
1,082 views
+1 vote
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How to store state data in Ethereum blockchain?

You won't have to overwrite the whole ...READ MORE

Apr 25, 2018 in Blockchain by Shashank
• 10,400 points
1,082 views
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Is there any resource for hyper ledger fabric to learn?

Hi, I have searched all the google sites, ...READ MORE

Mar 2, 2020 in Blockchain by anonymous
• 120 points
1,081 views
0 votes
1 answer

How to update data in Corda?

Yes, in corda you can store data ...READ MORE

Jul 11, 2018 in Blockchain by digger
• 26,740 points
1,081 views
0 votes
1 answer

Can someone tell me how to solve the Hyperledger playground installation issue?

I used those commands but the couldn't ...READ MORE

May 5, 2020 in Blockchain by Ratul
• 180 points
1,080 views
0 votes
1 answer

How to use bitcoin price as place holder in php?

You can do it by providing an ...READ MORE

Aug 21, 2018 in Blockchain by digger
• 26,740 points
1,078 views
0 votes
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How to write the Bitcoin logo as text?

Create a string in strings.xml like the ...READ MORE

Apr 12, 2022 in Blockchain by Aditya
• 7,680 points
1,077 views
0 votes
1 answer

How to get iota balance via api url?

Either run your own node (thus, the localhost reference ...READ MORE

Sep 12, 2018 in Blockchain by digger
• 26,740 points
1,077 views
0 votes
1 answer

Sawtooth Invalid Batch or Signature

The problem is in setting the batch ...READ MORE

Jun 16, 2018 in Blockchain by charlie_brown
• 7,720 points
1,077 views
0 votes
1 answer

Full nodes for ETH, BTC, and USDT in one server

You don't need to run another node ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
• 9,680 points
1,076 views
0 votes
1 answer

How to install Multichain in Windows?

There’s nothing as “installing” multichain in Windows. ...READ MORE

Mar 1, 2019 in Blockchain by Rohit
1,075 views
0 votes
1 answer

Sawtooth Javascript SDK "Batchlist rejected" error

What you can do is use intkey-client to the ...READ MORE

Sep 19, 2018 in Blockchain by digger
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1,075 views
0 votes
1 answer

coin.mx : 403 forbidden error on my web request

I was having the same issue and ...READ MORE

Sep 11, 2018 in Blockchain by digger
• 26,740 points
1,075 views
0 votes
1 answer

Can't install pyethereum module

The module's name is ethereum, not pyethereum. Using the ...READ MORE

Sep 27, 2018 in Blockchain by slayer
• 29,370 points
1,074 views
0 votes
1 answer

Not able to start testrpc for Ethereum truffle

Hey. It seems like you already have ...READ MORE

Nov 28, 2018 in Blockchain by Omkar
• 69,220 points
1,072 views
0 votes
1 answer

What if I change Chaincode state in invokeChaincode?

The chaincode state is not changed when ...READ MORE

Jul 13, 2018 in Blockchain by slayer
• 29,370 points
1,072 views
0 votes
1 answer

In IBM's Marble demo where are the transactions stored?

When using the Marbles tutorial, there is ...READ MORE

Jun 19, 2018 in Blockchain by Johnathon
• 9,090 points
1,072 views
0 votes
1 answer

Hyperledger Composer: Error: Object with ID 'assetID:0138' in collection with ID 'Asset:org.acme.mynetwork.Sensor'

Remove 'assetID:' from your test string. For example, 'org.acme.mynetwork#assetID:0138' ...READ MORE

Nov 14, 2018 in Blockchain by Omkar
• 69,220 points
1,071 views
0 votes
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Problem with installing testrpc using python-pip.

You are facing this error because you ...READ MORE

Aug 10, 2018 in Blockchain by slayer
• 29,370 points
1,071 views
0 votes
1 answer

How to add peers on a running Hyperledger Fabric?

You can not use configtxlator tool for ...READ MORE

Jul 10, 2018 in Blockchain by slayer
• 29,370 points
1,071 views
0 votes
1 answer

How to create a ‘feeless’ ERC20 token?

You can't have another address pay for ...READ MORE

Jul 6, 2018 in Blockchain by aryya
• 7,460 points
1,071 views
0 votes
1 answer

Hyperledger fabric: Unable to query result

In Hyperledger Fabric v1.0.0 your chaincode should confirm ...READ MORE

Oct 30, 2018 in Blockchain by Omkar
• 69,220 points
1,070 views
0 votes
1 answer

How to resolve blockchain dns using Python Requests

BDNS is offline and I don't know if ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
• 7,680 points
1,067 views
0 votes
1 answer

Not able to invoke a contract in Ethereum Private chain using geth

Hope this helps: contract mortal { /* ...READ MORE

Oct 22, 2018 in Blockchain by Omkar
• 69,220 points
1,067 views
0 votes
1 answer

Error using Santiment sanpy library for cryptocurrency data analysis

This is a great start, but I ...READ MORE

Apr 11, 2022 in Blockchain by Soham
• 9,710 points
1,066 views
0 votes
1 answer

What is sent to a non-validating notary service when corda transaction is sent?

The transaction is first filtered in the ...READ MORE

Jul 23, 2018 in Blockchain by digger
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1,066 views
0 votes
1 answer

Why Gas Used By Txn is different when invoking the same function in the same smart contract?

The input data might be different, but ...READ MORE

Sep 25, 2018 in Blockchain by Christine
• 15,790 points
1,065 views
+1 vote
1 answer

How do i change the names of validating peers in IBM Bluemix blockchain?

IBM Bluemix Blockchain service Hyperledger Fabric v0.6 will ...READ MORE

Apr 11, 2018 in Blockchain by Perry
1,064 views
+1 vote
1 answer

Is it possible to exchange the token for other tokens we create in an Ethereum Smart Contract?

Yes you can do that through something ...READ MORE

Aug 10, 2018 in Blockchain by Perry
• 17,100 points
1,063 views
0 votes
0 answers

API - Convert Bitcoin Amount into USD with my Api

After apiv2.bitcoinaverage.com is not free anymore I ...READ MORE

Mar 2, 2022 in Blockchain by Aditya
• 7,680 points
1,062 views
+1 vote
1 answer

In the Hyperledger Fabric architecture where is the SDK hosted?

Hyperledger client SDK is a component used ...READ MORE

Mar 27, 2018 in Blockchain by Christine
• 15,790 points
1,062 views
0 votes
1 answer

How to solve Corda Node Startup Exception?

The error says "port may be in ...READ MORE

Jul 13, 2018 in Blockchain by digger
• 26,740 points
1,059 views
+1 vote
1 answer

Why is Blockchain called a Disruptive Technology?

Blockchain Technology showed the world a new ...READ MORE

Dec 4, 2018 in Blockchain by Omkar
• 69,220 points
1,058 views
0 votes
1 answer

Transaction Id in Bitcoin Blockchain

The TransactionId comes from sending the coin. ...READ MORE

Jul 13, 2018 in Blockchain by Christine
• 15,790 points
1,057 views
0 votes
1 answer

How to test endorsement policy for the business network in multiple organizations

Give the proposal responses you are receiving ...READ MORE

Jul 6, 2018 in Blockchain by aryya
• 7,460 points
1,057 views
0 votes
1 answer

How to parse Json data from remote server?

Yes, you can do it use the ...READ MORE

Aug 17, 2018 in Blockchain by digger
• 26,740 points
1,056 views