Linked Questions

1
vote
1answer
35 views

Difference between Kovan and Rinkeby? [duplicate]

I understand that both the Rinkeby and Kovan testnets employ the Proof of Authority (PoA) consensus algorithms. I also understand how PoA works. However, I still dont understand how Kovan and Rinkeby ...
42
votes
2answers
29k views

How to select a network id or is there a list of network ids?

We're starting a new open network based on the Ethereum protocol. The question is how to allocate a network id for the new network. In Ethereum we have main net, four test networks, classic with test ...
36
votes
5answers
7k views

Ropsten testnet is under kind of attack? What can we do?

For the last approximately 24 hours, Ropsten testnet is under an attack in my opinion. The gas limit is raised to 200m and the attacker was proposing blocks with more than 4,000 internal txs ...
25
votes
4answers
7k views

What public test-networks and faucets exist?

What public test-networks exist and what are their conditions? What are the connection data? How often (if so) are they reset? Does a public faucet exist for this test network? Does a block explorer ...
8
votes
3answers
6k views

How is Rinkeby different from mainnet?

What makes Rinkeby a "testnet"? I understand it's a parallel network so my ether there has no effect on the mainnet ether. But how is it different technically? But does it still run on miners? What ...
3
votes
3answers
2k views

What is the purpose of Testnet?

I'm just getting into cryptocurrencies so forgive me if there are some basics I am missing out on. I have got a bitcoin account up and running and will soon be buying a few just to test things out, ...
6
votes
2answers
676 views

Why are there so many testing environments around Ethereum?

A newbie here, just trying to connect the dots. Why are there so many test environments in the ethereum ecosystem -- rinkebys, testrpc, ropsten and what else? Why not have just one testing ...
1
vote
2answers
630 views

How many Ethereum networks are there?

When I go to MyEtherWallet.com, I found a list of Ethereum networks like picture below. Could someone explain how many Ethereum networks actually exist and what is the difference between them? Thanks
3
votes
1answer
450 views

How to introduce new consensus protocol for the Ethereum based application?

I am developing a Blockchain based application using Ethereum. Can I introduce my own consensus protocol for the application. Any suggestions would be appreciated. EDIT : Or will it be possible to ...
3
votes
1answer
137 views

What is the purpose of Görli Testnet?

Görli testnet is started with the goal of being widely usable across all client implementations supporting Clique PoA engine (EIP-225) (see Comparison of the different TestNets) Since it exists ...
0
votes
1answer
130 views

cpp-ethereum Current block number is 0

I have using eth --private "customChain" --genesis-json genesis.json --db-path data" to create a private chain. and when I into ethconsole it shows: Connecting to node at \\.\pipe\geth.ipc Connection ...
0
votes
1answer
62 views

What kind of security measures do Testnets have in place?

Cryptographic work is spent verifying transactions on Ethereum, without which, there would be little to nothing preventing colluding to start a 51% attack or creating false identities to start a Sybil ...
0
votes
2answers
60 views

How to call a function of a smart contract [closed]

I'm totally new to solidity I have a contract that I have to compile and deploy. Now, I have to interact with it (specifically with one of its functions) but I don't know how to do that and I feel ...
0
votes
1answer
31 views

Is there multiple chains of block in ethereum network?

Since blockchain is a chain of blocks, In ethereum, 1. is there only one chain of blocks 2. are there multiple chains of blocks.
2
votes
0answers
45 views

Ropsten chain not syncing

I started syncing my ethereum ropsten chain using geth 3 days ago in fast mode. eth.syncing shows false , but the difference between highest block shown by my node and the one shown at ropsten ...