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Questions tagged [hashgraph]

41 questions
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getting error on associating token in hashgraph/sdk. "publicKey._toProtobufSignature is not a function"

// TOKEN ASSOCIATION WITH ALICE's ACCOUNT let associateAliceTx = await new TokenAssociateTransaction() .setAccountId(aliceId) .setTokenIds([tokenId]) .freezeWith(global.client) .sign(aliceKey); //SUBMIT THE…
Paras Dalsaniya
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Accountid & PublicKey returns different transactions for 0.0.1261794

I am using hedera offical api in code, for accountid 0.0.1261794 getting 2 transactions only where as publickkey e2cc4c84391f5d9fd74dcf8199fb0bcd9c629f4d9aaa223649aad2814c56e6ba associated with 0.0.1261794 accountid, return more than 20…
UMANG AWASTHY
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Creating new account fails with INSUFFICIENT_TX_FEE

I've been playing around with the Hedera SDK and with it's wrapper for Python. A couple of hours ago I had a working example were I was able to create a new account with an initial balance. Now, a couple of hours later, the same code is failling…
Cchor
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Is there a way to wipe an individual NFT and mint a new one on Hedera? or will all tokens with the same ID be wiped?

For Hedera NFTs, if a user wants to have the ability to clawback an NFT (wipe and mint a new one) are you able to perform that operation on a Serial Number basis or is it only at the Token ID level? E.g. if User A owns two NFTs of the same token ID…
Ed Marquez
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Error: Cannot read properties of null using the Hedera Token Service with JS SDK

In TokenMintTransaction and TokenBurnTransaction when I convert into bytes using .toBytes() and build a transaction from bytes using Transaction.fromBytes() I am getting this error: Cannot read properties of null (reading 'token' )
Ed Marquez
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How HashGraph Gossip Protocol Works?

I read HashGraph paper https://www.swirlds.com/downloads/SWIRLDS-TR-2016-01.pdf and view "The HashGraph Protocol" https://www.youtube.com/watch?v=BAfsN3NW2Zg&list=PLr-BND1DE3sUR7GMm4lgw3B3D94OT4NuL&index=8&t=774s which explains how hashgraph works…
Giorgos Papaioannou
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Corda with HCS pluggable consensus

I am trying to understand the applicability of pluggable consensus in corda. For example, the consensus service from hedera hashgraph can be plugged into corda,technically. But I am not clear why it is needed? Can anyone help me in understanding…
userAG
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Hashgraph, what's it and how does it work?

Does anyone know what's a hashgraph and the difference from blockchain? If you could explain it to me how it works, I would be pleased! Thank you in advance!
edo_griba
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Plotting a Hashgraph Simulation in Python

I've been working on a Hashgraph simulation for some time and I'm having trouble trying to figure out how to plot data in a hashgraph data structure. My hashgraph data structure is a dictionary containing keys (which would be the names of each…
Mav
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Protocols used in a distributed/dlt system for the nodes to establish communication

What is the underlying protocol used by the nodes to establish an initial communication with each other in distributed/distributed ledger technology? For instance: Cassandra uses TCP to learn about other nodes. Likewise, what protocol is used…
Minisha
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Can anyone describe the differences in Tendermint and Hashgraph?

Can anyone describe the differences in Tendermint and Hashgraph? We are looking to use a BFT consensus solution with mongoDb like in BigchainDb but we are wondering the differences with Tendermint and Hashgraph? thank you
Ryan Yoshimoto
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