Questions tagged [hashgraph]
41 questions
8
votes
3 answers
Private blockchains Vs Hashgraph, Ripple, BigChainDb
I have been investigating different blockchains for some use cases. In the end, I came to the conclusion that setting up a private blockchain is equivalent to having a distributed database with blockchain concepts like immutability, digital…
Minisha
- 2,117
- 2
- 25
- 56
5
votes
3 answers
“Gossip about gossip” protocols
Lately there is much rumor about the (patented) hashgraph consensus algorithm, which claims to have very good complexity measures. See the whitepaper:
https://swirlds.com/downloads/SWIRLDS-TR-2016-01.pdf
A central part of this appoach, is the so…
Mark Neuhaus
- 159
- 4
3
votes
1 answer
How do I mint multiple NFTs on Hedera calling TokenMintTransaction only once?
I want to mint 100 NFTs. Do I need to call "TokenMintTransaction()" 100 times?
Is there some way to mint 100 NFTs in a single API call?
Here's the code I'm using:
let mintTx = new…
Ed Marquez
- 488
- 1
- 10
3
votes
1 answer
What causes an INVALID_TRANSACTION_START when submitting a transaction to Hedera
I am receiving the following error when I submit a transaction to Hedera:
failed precheck with status INVALID_TRANSACTION_START
This hasn't happened to me before and I'm confused.
Why is this error happening?
Abi
- 356
- 2
- 11
3
votes
1 answer
Getting error "Transaction Oversize" while creating a smart contract in Hedera blockchain
My bin file size is 18kb only. I also get a solution to use IPFS but don't know how to use it. If there is any reference for using IPFS then share me plz. :
Error: PrecheckStatusError: transaction 0.0.34898094@1653658245.135892060 failed precheck…
Sumit Sharma
- 85
- 8
2
votes
0 answers
Hedera Rust SDK unable to encoded transaction
Hy everyone, I am trying to create freeze TransferTrasnaction using Rust SDK. I now it's still in development process but I was wondering if there is a way. What I want to do is create transaction on one client that will pay fees, freeze transaction…
perkan11
- 21
- 2
2
votes
1 answer
Problem submitting request to node, retry with new node: BUSY
I am calling a function from a smart contract:
ContractCallQuery query = new ContractCallQuery()
.setContractId(ContractId.fromString(request.getContractID()))
.setGas(100_000_000)
…
Acehilm
- 113
- 1
- 7
2
votes
1 answer
Does connecting HashPack wallet mean the application can read my private key?
When we connect our HashPack wallet, does it mean I allowed the application to read my private key?
I think it is not necessary to read the private key of my wallet to log in.
Ashok Sandhyala
- 33
- 4
2
votes
1 answer
Hashgraph diagram with 2-way communication when nodes gossip?
The hashgraph introductory paper "The Hashgraph Protocol: Efficient Asynchronous BFT For High-Throughput Distributed Ledgers" (Baird, Luykx, 2020), has a diagram of the hashgraph data structure - Figure 1† - which is very similar to the one on the…
davidbak
- 5,775
- 3
- 34
- 50
2
votes
1 answer
How to convert Seed to the PrivateKey?
I'm developing a Hedera Wallet for Flutter, and I need to convert the mnemonic to the private key.
I use the bip39 to convert the mnemonic to seed.
But how can I convert the seed to the PrivateKey?
Hossein Yousefpour
- 3,827
- 3
- 23
- 35
2
votes
2 answers
How to get an exchange rate between USD and HBAR for use in Hedera application or smart contract?
How can my smart contract or application access USD/HBAR exchange rate info from a file on the Hedera network (Hedera File Service)?
The file I'm interested in is 0.0.112. I tried doing a query with the SDK from my application and it seems to get me…
FungalFury
- 23
- 3
2
votes
2 answers
CONTRACT_REVERT_EXECUTED Hedera Smart Contract
CONTRACT_REVERT_EXECUTED
Not sure what I'm doing wrong but I'm trying to call a function and it takes in one parameter and I made sure it was correct but it still reverts. This is hedera-hashgraph using HederaTokenService.
Smart Contract:
pragma…
Yasuo
- 31
- 3
2
votes
1 answer
Where does one access events that are emitted from a solidity contract, either via a node or a mirror?
How can I get emitted events from a solidity smart contract on the Hedera Network? My best guess is via ContractFunctionResult.
cisc0
- 106
- 8
2
votes
1 answer
Can I use smart contracts on the Hedera network?
Does the Hedera Hashgraph Network support smart contracts, and is it possible to migrate smart contracts to Hedera?
Ed Marquez
- 488
- 1
- 10
1
vote
0 answers
How do I query a transaction receipt and confirm that the transaction is executed successfully on Hedera network?
I have a completed transaction and I have its transaction ID. I am trying to query that transaction using the following code:
const transactionQueryExecuteTx = await new TransactionReceiptQuery()
.setTransactionId(transactionId)
…
Pathorn Teng
- 411
- 6