Questions tagged [ethereum]
Users asking questions related to the Ethereum network.
29
questions
4
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1
answer
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How can I create a bridge between a solo chain created with substrate and Ethereum blockchain?
Is there a tool offered by the substrate ecosystem that I can use, that can help me create a bridge between a solochain created with substrate and Ethereum blockchain? Specifically, I want to transfer ...
- 341
2
votes
2
answers
55
views
Is it possible to turn a Frontier node into an Ethereum client?
Suppose I start with a Frontier-based template node and want it to sync with a Geth full node, as if it was an Ethereum execution client.
What are the minimal set of changes necessary to make this ...
- 345
4
votes
3
answers
69
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Troubleshooting Polkadot.js Recognition of Prefunded Dev Accounts on a Network Using EthereumSignature
I've made some changes to my blockchain setup recently. I switched the signature over to EthereumSignature, which changed my AccountId to an H160 size. Thankfully, I can still use scripts to manage ...
- 499
2
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1
answer
52
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I Can't Generate The right AccountId from Ethereum(H160) Address
I am writing a test to test evm contract instantiation using polkadot api.
I get to derive the evm account like this:
const alice = keyring.addFromUri('//Alice', { name: 'Alice default' });
const ...
- 419
3
votes
1
answer
47
views
How can I sign and execute transactions using custom origin(20 bytes address) in PolkadotJS
I have a pallet which ensures a particular custom origin of H160(20 bytes). Actually, this pallet is to ensure that the Origin is that of an ethereum address(20 bytes).
I am therefore writing ...
- 419
2
votes
1
answer
69
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error: no matching package named `sc-consensus-grandpa` found
I want to add pallet ethereum in our runtime but after adding this line:
pallet-ethereum = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/...
- 1,421
2
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1
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70
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Derived H160 address is different than showing in metamask?
I know ss58 public key and private key, also I have derived the EVM HS160 account from the same public key, next is how I can import that EVM HS160 Account in metamask. If I put the private key of ...
- 41
1
vote
2
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176
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How to add evm and ethereum pallet from scratch into substrate node?
I want to add evm pallet and ethereum pallet into my substrate node from scratch, so how I can do that.
- 41
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0
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Why do clients have to hardcode the extra types in the registry?
Context: I'm experimenting with an H160-address based substrate and I'm doing it from scratch (it's not a moon* or frontier template fork).
It's reasonably trivial to make changes to the substrate ...
- 148
1
vote
1
answer
102
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How do I use the AccountId20 and EthereumSignature Signer with polkadot.js.org? [duplicate]
I'm trying to get a better understanding of Frontier, and thus I'm reimplementing the frontier node template over the generic substrate node template. Unfortunately I'm pretty much stuck at step 1.
...
- 148
1
vote
1
answer
37
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Balance becomes zero after changing Account address type from Substrate address to Ethereum address
I am working on a scenario, where I have to upgrade my application and change account address type(from Substrate address to Ethereum address[similar to moonbeam unified account]).
I made the ...
- 413
1
vote
1
answer
271
views
How to connect substrate node to metamask?
My node is compatible with EVM and I would like to connect it to metamask?
How can I do it?
What should I put in RPC URL and chain id? (Where can I find my chain id)
- 171
0
votes
1
answer
79
views
How to Sign an Ethereum transaction from substrate?
Consider we have a ETH keypair in the keystore inserted using this command
curl -H "Content-Type:application/json" -d '{"jsonrpc":"2.0","id":1,"method"...
- 759
0
votes
1
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39
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Ink smart contracts are giving build error when i am using ethabi rust crate
To encode and decode data the way we do in solidity I am using ethabi. It is working fine in compilation and testing but when I am running the command cargo contract build, it is giving me a build ...
1
vote
1
answer
113
views
Is there any way to compile ink contract to EVM bytecode?
I just wonder if there is any way to deploy my ink! contract to ethereum network. As far as I know, ink! contract compiles to WASM bytecode, not EVM, so it's not possible, right? Or maybe there are ...
1
vote
2
answers
138
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deploy solidity ethereum to parachain with ExhaustsResources error
I can deploy a few Ethereum smart contracts into my parachain via Hardhat.
But those are only normal contracts. All the upgradeable contracts and ERC777 contract cannot be deployed with the ...
- 1,193
0
votes
1
answer
101
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How to make a Frontier demo for running Ethereum smart contracts?
Inside the Frontier repo, I found this template folder:
https://github.com/paritytech/frontier/tree/master/template
and its Readme says: This template is maintained in the Frontier project repository, ...
- 1,193
0
votes
1
answer
71
views
ChainBridge: how to use their CLI tool to deploy smart contracts on Ethereum networks?
How to Ropsten, Rinkeby, Kovan, Goerli, and Kiln
From cb-sol-cli doc page https://github.com/ChainSafe/chainbridge-deploy/blob/master/cb-sol-cli/docs/deploy.md
It is not very clear or easy to use this ...
- 1,193
1
vote
1
answer
80
views
How to connect my Parachain and Ethereum to ChainBridge?
How can I make ChainBridge to work with my parachain collator? Is there a documentation for such process?
all the settings are inside the chainbridge/config.json file(https://github.com/ChainSafe/...
- 1,193
1
vote
2
answers
118
views
Polkadot Patricia Trie compatible with Ethereum implementation
I'm currently looking to verify ethereum transaction merkle-proofs in runtime. As Ethereum also uses a patricia-trie, I was wondering if the two implementations are generally compatible. Is it ...
2
votes
2
answers
113
views
Ethereum chain as a Substrate chain
Is it technically possible to upgrade Ethereum to be Substrate compatible blockchain?
I understand there is likely to be strong resistance toward such idea in ETH community but I am interested only ...
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4
votes
1
answer
335
views
the trait `WrapperTypeEncode` is not implemented for `ethereum_types::H256` & `ethereum_types::U256`
I am using:
ethereum-type version = "0.12", codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"]}
scale-...
- 195
1
vote
1
answer
240
views
Enabling the std feature on environmental crate
I'm trying to use the environmental crate (link: https://docs.rs/environmental/1.1.3/src/environmental/lib.rs.html#64) to work with EVM and ethereum transactions. But it seems like adding either ...
- 319
3
votes
1
answer
132
views
convert ethereum public key to substrate public key
given a known ethereum public key, is it possible to determine a substrate public key for the same account (for the purpose of an airdrop)?
i believe that substrate keys are interchangeable across ...
- 31
3
votes
1
answer
577
views
How to convert a Substrate address to an Etherum address? [duplicate]
How can I convert a Substrate address to an Etherum address?
There is an EVM to substrate address conversion that Edgeware provides: https://edgewa.re/keygen
- 930
5
votes
2
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230
views
How do ECDSA subkeys differ from Bitcoin/Ethereum keys?
As far as I understand, besides the ed25519 and sr25519 signatures, there is a compatibility mode for ECDSA keypairs that should use the secp256k1 curve.
Both Bitcoin and Ethereum use the secp256k1 ...
- 307
2
votes
0
answers
43
views
frontier ethereum pallet integration, the trait `fc_rpc::format::Formatter` is not implemented for `Geth` [closed]
I'm trying to copy a function from the frontier pallet(fc_rpc::format::Formatter), I copied it to a file and imported that.
frontier-752fb1c28a6c675a/ea37e8f/client/rpc/src/format.rs
It's the same ...
- 319
3
votes
0
answers
69
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What are precompiled in moonbeam and relevant EVM enabled chains? [closed]
What are precompiled in moonbeam and relevant EVM-enabled chains? and why we should use it if we are going to create EVM enabled chain?
- 1,896
2
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1
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234
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Process ethereum transactions in an offchain worker
I need to process Ethereum transactions in a substrate offchain worker. I already include EVM and Ethereum pallets, but I also need to do some communications with runtime code running as solidity ...
- 123