Linked Questions
18 questions linked to/from What does each genesis.json parameter mean?
0
votes
2
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237
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ETH Json RPC output [duplicate]
Looking at the output of https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getblockbyhash
Does anyone know what do the "mixHash" and "extraData" field mean? and what is the Unit of gasLimit and ...
- 317
16
votes
3
answers
29k
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How to set up a Private network and connect peers in geth?
I am trying to setup a private network and trying to connect peers. Currently I'm trying it on my laptop and desktop (both of them are connected to different internet).
I run the below command in ...
- 161
10
votes
4
answers
21k
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How to increase gas limit in block using geth?
When I try to execute methods from my smart-contract, I get limited by the gas limit in a block and can't do anything.
How to change the gas limit in the block?
- 185
21
votes
1
answer
8k
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The meaning/specification of "config" in genesis.json
As I tried to search from Google, there are some genesis.json example files to customize the parameter of genesis block in Ethereum private blockchain.
In the file, there is a part called "config"
"...
- 385
5
votes
3
answers
5k
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Mining not working in ethereum private net
I was trying to enable mining over my private network but it won't start.
My Understanding so far about mining
Mining is used to mine new block , to confirm transaction and also to generate new ...
- 837
4
votes
1
answer
6k
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How to Set Gas Price in Private Blockchain?
I admit that I don't understand Gas at all. But I think it is basically the currency which dapps use to interact with each other and the blockchain. Yes?
If you're creating a custom/private network,...
- 1,994
4
votes
1
answer
5k
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What does the extraData field of a block represent?
I am trying to save some data into a block.
The extraData field has a constant value since block 1.
Also where does the data parameter of sendTransaction() function get stored?
- 341
4
votes
2
answers
2k
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callback contain no result Gas required exceeds limit
I am trying to run a function with Remix web compiler on a contract in my private chain. Here is my contract and I am trying to run the function changeVaccinHistory:
contract PatientObjects {
...
- 599
5
votes
1
answer
2k
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How to add more Ether on a private blockchain
In geth 1.5 the --genesis option has been removed. What do I use instead to add ether to my account?
- 83
4
votes
1
answer
1k
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What do the parameters in the Ropsten genesis file mean?
Here's a snippet of Geth's Ropsten genesis:
"config": {
"chainId": 3,
"homesteadBlock":0,
"eip150Block":0,
"eip155Block":10,
"eip158Block":10,
"eip160Block":10 }
...
eth♦
- 85k
4
votes
1
answer
577
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What replay attack protections does Ropsten provide?
I understand the Ropsten testnet was partly necessary because of some broken replay-protection measures on Morden. So what's different for Ropsten?
Is the nonce simply incremented by a smaller ...
- 2,616
0
votes
1
answer
2k
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I need some clarification about cloning Ethereum
I would like, just for learning purpose how to create a new crypto by cloning the Ethereum.
I know how to make a clone of BTC and LTC, basically with that chains is enough modify some strings (such ...
- 121
2
votes
0
answers
1k
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Fatal Error while initializing Node from Custom genesis file : "cannot unmarshal hex string of odd length"
I am trying to initializing geth node with the following Gensis file content
{
"nonce": "0x00000000000000042",
"timestamp": "0x0",
"parentHash": "...
1
vote
1
answer
715
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Why is there a nonce and mixHash value in the genesis file?
I may not fully understand the genesis file.
Why is there a nonce and mixHash value in the file if nothing is being mined?
It was my impression the genesis file is used to bootstrap block 0, then ...
0
votes
1
answer
448
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Major conceptual misunderstandings about genesis.json
I am having a hugely difficult time understanding the genesis.json file.
Assumption: it seems to me that it serves to both initialize the first block, and also set configuration parameters for the ...