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Results tagged with private-blockchain
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user 73533
Private blockchains are not available for the public and are maintained/secured by a cluster of trusted nodes. These kind of blockchains are useful when dealing with sensitive information.
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144
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web3.eth.contracts.myMethod().call() returns nothing
I'm still new to ethereum development, and when trying to execute call() on a created contract, I'm receiving varying results. Sometimes the call works, and other times it returns the error Returned v …
- 131
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web3.eth.contracts.myMethod().call() returns nothing
The solution was to call a "cleanup" function on page load that did state cleanup on the contract before attempting to do other contract calls. As stated, there was no ABI issue nor a gas issue, but I …
- 131
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0
answers
96
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Read smart contract data from blockchain itself
I'm trying to figure out if it's possible to read smart contract data from the blockchain itself. I know in ordinary circumstances, smart contracts sit on top of the chain in the ledger. I'd like to k …
- 131
1
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answers
172
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lolminer stops working on a private network at epoch 13
We are using lolminer (v1.67) for GPU mining on our private POW network. The miner was working fine up until we hit epoch 13. When we hit epoch 13, lolminer stopped working on all our NVIDIA GPUs with …
- 131
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194
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State root mismatch error at mining genesis block
I am working on a private Besu implementation. I made some modifications to the open source package, and when I went to start a new chain instance it gives a state root mismatch error for the genesis …
- 131
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How to use events to retrieve data from a transaction? PRIVATE CHAIN
You're missing the keyword emit in front of your event. Like so:
function transfer(bytes32 _ID) public returns (address) {
// Only the current owner can transfer the token.
if (ID == _ID) { …
- 131
1
vote
0
answers
105
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High block mining time even with low difficulty
We have a private network running on Hyperledger Besu. We are using ethash, and it had a fixed difficulty of 3625. That was producing blocks fairly quickly, averaging about 8-10 seconds, with some as …
- 131