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1500 questions
11
votes
2 answers
What is the smallest amount of Ether?
For example, the smallest amount of Bitcoin is one Satoshi or 0.00000001 BTC. What is the smallest amount of Ether and what is it called?
Kyle Piira
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11
votes
5 answers
How can I browse mempool in Ethereum?
How can I browse mempool in Ethereum? Is it possible from EthereumJ or on some websites?
MrSea
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11
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1 answer
What is the actual blockchain size?
I am trying to find the actual size of the etherum blockchain.
I just found older posts that says it is around 21GB.
What are the Ethereum disk space needs?
honsa
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11
votes
5 answers
Truffle invalid address
With Truffle 3.0 when I call one of my contract's function, in console I have this error:
Uncaught (in promise) Error: invalid address
I found this workaround, and in my code I try this with no…
underdog
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11
votes
4 answers
How can I verify a secp256r1 signature using solidity
Sorry if you find these questions are basic, but I am new to encryption. As far as I know, Solidity have ecrecover function for this purpose, but it use secp256k1 signature. which I am intend to use secp256r1. I used the following steps in this…
john
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11
votes
1 answer
Efficiency of zkSNARKs as an Ethereum smart contract vs Zcash
How would the efficiency of zkSNARKs as an Ethereum smart contract compare to the same technology being used on its own blockchain (such as Zcash or Zclassic)?
By efficiency I mean 3 things:
Tranaction confirmation time
Transaction cost
Size of the…
Roman
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11
votes
3 answers
Is there any way to hide a transaction?
Is there any way to hide a transaction on the Ethereum blockchain?
Some blockchain have protocols that implement this by default, like Monero and Zcash. Is something similar possible on Ethereum?
SilverCookies
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11
votes
2 answers
How to use ethers keccak256?
I tried to use ethers' keccak256 function like this:
import { keccak256 } from "@ethersproject/keccak256";
const signature = keccak256("balanceOf(address)");
But the script failed with this error:
Error: invalid arrayify value (argument="value",…
Paul Razvan Berg
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11
votes
2 answers
Can I run a website 'on' ethereum or only 'with' ethereum?
Do you run a website 'on' ethereum or 'with' ethereum and if the latter, is that only with 'nodejs'?
Cisko Rijken
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11
votes
1 answer
Signing messages as a Gnosis Safe (eip1271 support)
Does Gnosis Safe have a native way to validate it's own eip1271 signatures? I know that Gnosis Safe's can have contract accounts as owners and it will verify those signatures according to eip1271 but what if I want my Gnosis Safe to sign a message…
smhtm
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11
votes
3 answers
What's the fastest way to mine a transaction so I can test contracts quickly?
I am developing a solidity automated test framework in nodejs that uses events/logging extensively. The use of events eliminates (I believe) all the RPC simulators out there. It's also frustrating to chase down simulator problems, I'd rather use a…
Paul S
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11
votes
2 answers
How does data storage on the blockchain work?
If I store file chunks in the blocks, I'm causing duplicated blocks all over the networks (I mean, my file's chunks will be in each computer on the blockchain network, So eventually I have many many copies of this file in each block of each…
Roy Kuper
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11
votes
2 answers
Corruption on data-block while synchronising
My home server's been down for a couple of days while I do some upgrades.
I'd had Geth running in one of the terminal windows, but shut it down gracefully using exit before taking the server offline.
On trying to restart it, I'm seeing the below…
Richard Horrocks
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11
votes
1 answer
What are the IDs for the various Ethereum chains?
I'm looking to find the chain ID's for each network (homestead, etc.). I believe the v-value of signatures is associated with these to some extent.
I'm also under the impression that the ropsten ID is 3, if that gives any context to what I'm looking…
Cisplatin
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11
votes
3 answers
Syncing ethereum testnet
I'm syncing my geth client with ropsten testnet and just realized how slow is the syncing process after a certain block(trying to retrieve information from blocks that got in blockchain yesterday) for a couple of hours.
Basically I got several…
Saulo Ricci
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