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197 views

Geth - Events not working/firing

I have an API (expressjs - nodejs) listening for different events from my contract. var web3 = new Web3(new Web3.providers.WebsocketProvider("ws://localhost:8546")); var tokenContract = new web3.eth....
3
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0answers
258 views

Parity RPC eth_newFilter not returning pending events

I'm trying to create a listener for new pending TXs on the network using Parity RPC's eth_newFilter method. I'm sending the request using the following parameters, expecting to get pending ...
3
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0answers
115 views

What would cause nodes on a private blockchain to gradually lose connectivity?

I have a private blockchain with 6 nodes, and a total of three miners. When I initialize the blockchain everything looks great and the nodes find each other starting with the bootnodes. After about ...
3
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1answer
508 views

Parity 1.7.8 is syncing the last few blocks very slowly

I have been using the parity client to download the ethereum database for the last few days. Despite using the warp sync to download it, I havent been able to download the last few blocks fast enough. ...
3
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0answers
497 views

Remote Web3 connection to Parity node running on AWS

I have an Amazon EC2 instance set up running a Parity node. I'm trying to communicate with it via Web3 (using Nethereum.Web3 in C#). If I connect locally with http://127.0.0.1:8545, everything works ...
3
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0answers
406 views

What's the difference between Nakamoto consensus vs Proof-of-Authority vs BFT

Documentations all around the internet are filled with these terms to categorise consensus protocols. What is the difference between them. For example: many call parity's tendermint as a BFT type ...
3
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0answers
529 views

JSON RPC transfer of ERC20 Tokens with Parity

How can I use Parity with JSON RPC to send and receive ERC20 tokens?
3
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0answers
2k views

geth vs parity: light client comparison

My computer is a laptop with a small SSD HDD, so I don't want to download the blockchain. Hence, I want to use --light to connect to other computers which do have a copy of the blockchain. Parity's ...
3
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0answers
205 views

Parity Signer qr code not working, stuck on “Parity Signer: Pending”

I'm having issues with with Parity when trying to do any type of transfer-I get stuck on the "parity signer: pending" screen. The prompt I get is "Please scan the transaction QR on your external ...
3
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0answers
251 views

Run parity in warp up to a certain block and archive mode after that

Is there a way I can run parity in warp up to a certain non-latest block, say starting from block 3,000,000 after the network spam and full archival mode after that?
3
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0answers
244 views

Parity signer issue

I'm trying to send raw transactions throught JSON-RPC api. I'm signing it offline (with python lib) and then using the eth_sendRawTransaction method. The thing is that sometimes it gets broadcasted ...
3
votes
1answer
447 views

Help transferring Ether Tokens using Parity

I configured Parity to trade Ether to BNT. I followed the steps here https://blog.bancor.network/how-to-trade-your-bnt-using-parity-6061dca37354 and funded my EtherToken Contract. This is the ...
3
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2answers
444 views

Parity unable to deploy contract on ropsten

I have running instance using parity: parity --chain=ropsten --author=0x00c62AA7449864C21E5250533577ec628849dAE2 --rpcapi=web3,eth,personal --jsonrpc-interface=127.0.0.1 --jsonrpc-port=8545 --jsonrpc-...
3
votes
2answers
2k views

Unable to unlock account with Parity and Web3 on the testnet

I'm running a local Parity node for the testnet (Ropsten) on Debian (Jessie). I'm using web3.py to connect to this node and create transactions. I've created a new account: parity account new --...
3
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0answers
677 views

How to import contract source code in etherscan.io

I'd like to learn which solidity source code is being used when I create a multisign Wallet in Parity 1.6 My goal is to import that source code into https://kovan.etherscan.io/verifyContract?a=...
3
votes
1answer
769 views

Can't locate local key file asked by parity to sign a transaction

When I use NODE-RED enviroment to send transaction using Parity, the signer doesn't ask only for the password as usual but also for the local key file, which I can't locate in my laptop (I'm looking ...
3
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0answers
63 views

Parity not syncing anymore [duplicate]

About 2 days ago I started to download Ethereum's blockchain with Parity. After a while, I tried to start Parity with a few flags parity --geth --ui-interface 0.0.0.0 --ui-no-validation, so I would be ...
3
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0answers
505 views

Windows 32bit — Geth/Parity

Hey is it possible to run Geth/Parity + mine on a Windows 32bit machine? I'm having trouble finding anything.
3
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0answers
59 views

Getting up to sync with the network [duplicate]

At this point I've given up any hope. I've tried syncing with geth --fast --cache=1024. I have ~99% synchronization and the remaining ~1% (the last 1000-2000 blocks) is taking forever. With Parity ...
3
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0answers
196 views

Error installing parity

I had worked with geth, but getting lots of errors like last 1000+ blocks not syncing, so I have decided to switch to parity. I was following One-line Binary Installer, but was hit by: /bin/sh: 1: ...
3
votes
1answer
625 views

Getting Invalid address or Invalid Params when deploying new contract on test network with Parity

I am trying to deploy new contract on the net and I get two errors depending how exactly how I do it. Since I can not get ABI compiling contract on Parity I use solc --abi to get it. Now depending if ...
3
votes
0answers
383 views

Do I have to set pruning to archive for supportive full node

I run a parity node on a server of mine (with a lot of resources and bandwidth) for the sole reason of supporting the network. I don't have any accounts there since my funds are on another machine. ...
2
votes
4answers
375 views

How are transactions with the same gas price ordered in a block?

If A has gas_price == 1gwei and B has gas_price == 1gwei, how does the miner decide which tx gets executed first when ordering them into a produced block? Does it depend what mining client is used? ...
2
votes
3answers
629 views

Want to run a local fork of Ropsten

I would like to run a local fork of Ropsten to interact with some of the smart contracts without having to fill up from the tap. My plan was to start a light parity node as follows: parity --chain ...
2
votes
1answer
2k views

Parity Full History Node

I'm trying to setup personal full node in archive mode (whole history) on server with this parameters: Intel i3 3.4GHz 8GB DDR3 1333 MHz 2TB HDD 100 Mbps / 128 I was expecting issues with HDD speed (...
2
votes
2answers
4k views

How to attach ethminer to parity node

I have accomplish to add a parity node to the private network with the help of this valuable guide: https://ethereum.stackexchange.com/a/13035/4575 Now I would like to attach ethminer to my parity ...
2
votes
1answer
4k views

Is there a way to access Parity UI running on AWS?

I am trying to run Parity UI on Amazon EC2 instance to be accessible on external IPv4 address, but failing miserably with this attempt. I think I tried all the startup options it provides but couldn't ...
2
votes
1answer
895 views

Error: Your homepage is not available when Trusted Signer is disabled

Just launched parity (using v.1.4.4 at the moment) as always, and when I try to access its UI (via http://localhost:8080/ ), I get this error: 404 Not Found Your homepage is not available when ...
2
votes
1answer
11k views

How to create an Ethereum mining pool. [duplicate]

How would one begin to create an Ethereum mining pool?
2
votes
1answer
291 views

Good source for TPS and transaction latency / finality for private Ethereum blockchains

I am looking for a good source / sources to compare TPS and transaction latency (How long it takes to send a transaction until it is mined) for different private blockchain solutions. Especially I am ...
2
votes
1answer
1k views

sync parity or geth starting from block x

I'm having issues syncing geth and parity as detailed in other posts. What would be ideal is if you could sync starting from the current block only as I dont really need historical blocks anyway. Is ...
2
votes
1answer
202 views

Was parity multisig exploit fixed?

I want to use parity as a multisig wallet, but I want to make sure they've already fixed the recent exploit. Most articles online just talk about the exploit.
2
votes
1answer
239 views

Parity: Is deleting ~/.ethash folder also deletes chain data?

I am not doing any mining and I want to clean unnessary files due to my limited memory space. I realized that ~/.ethash folder contains around 3.5 GiB. I am not sure should we keep it for the chain-...
2
votes
1answer
444 views

How to debug contract in Ropsten network (using orazlize.it)?

I am developing smart contract that involves random number usage. I decided to use oraclize.it to get it according to this example. Documentation says that Oraclize smart contract available in Ropsten ...
2
votes
2answers
127 views

How do I know Mist-type programs don't have access to my keyfile and password?

These programs create the keyfile and I enter my password into them whenever I send a transaction. What's to stop them from sending that info somewhere?
2
votes
1answer
1k views

Parity on Windows 64bit Questions

Today I downloaded Parity for Windows. Start it with parity --author 0x9999999999999 --rpc --rpcaddr 192.x.x.1 --rpcport 8545. Then I have started ethminer ethminer -G -F 192.x.x.1:8545 When I go ...
2
votes
1answer
605 views

How can obtain the value of erc20 token in transaction? [duplicate]

i want to get the token's transferring value like this: https://etherscan.io/address/0x27054b13b1b798b345b591a4d22e6562d47ea75a#tokentxns How can obtain the value of erc20 token in transaction? https:...
2
votes
1answer
129 views

Is EOS based on an Ethereum client? (geth, parity, etc)

Do we know if EOS is based on code contributed by the Ethereum community? Is it possible that they will "steal" a lot of the open source projects that have been developed for Ethereum? I am not, and ...
2
votes
1answer
254 views

What is Parity doing after warp sync besides importing new blocks?

I noticed Parity is still busy working on old blocks after a warp sync - but it doesn't really tell why. e.g. 2018-06-07 08:38:14 UTC Imported #5746763 098a…98f4 (37 txs, 1.69 Mgas, 137.63 ms, 8.11 ...
2
votes
2answers
280 views

Is there a way to cap CPU usage in Parity?

I have a non-useless Macbook Air running High Sierra. I've tried using both Mist & Parity, but alarmingly, I've found that both Ethereum clients have no respect for my CPU load when syncing. ...
2
votes
1answer
1k views

Error when interacting with an Ethereum Smart Contract using web3.py

I'm using web3.py to interact with an Ethereum Smart Contract which is: pragma solidity ^0.4.0; contract Coin { address public minter; string public name; mapping (address => uint) ...
2
votes
1answer
436 views

Parity PoA chain not receiving transactions

I'm trying to set up a single node proof-of-authority chain. I am using Parity v1.7.7 and have the following config file: { "name": "LocalPoA_7545", "engine": { "instantSeal": { "params"...
2
votes
1answer
542 views

How to recover ether from Parity wallet with private key?

Given the multi-sig wallet vulnerability with Parity, I am curious why Parity wallet users are unable to access their ether using the private key provided by Parity? Perhaps my understanding of the ...
2
votes
1answer
377 views

error when getting TransactionReceipt from parity node with ethereum-go

In my golang oracle, I need to get the TransactionReceipt for my transaction. To do so I call client.TransactionReceipt(context.TODO(), txHash) This yields a transaction receipt when the node is ...
2
votes
1answer
182 views

Why would gasLimit be read as 4,700,036 instead of 4,712,388?

I have the Block Gas Limit of a private Parity-based blockchain set to 4,712,388. That's the "gasLimit" parameter. But when I view it on a block explorer on the very first block running on this ...
2
votes
1answer
511 views

Ethereum client - minimum for sending transaction

Requirement: Reliably send Ethereum transactions Be connected to main nodes directly (speed) Limitations: Disk size (20-40 GB) Given this, what is the recommended configuration to run an ...
2
votes
1answer
870 views

How do I update Parity's enode id?

I am running Parity in a Virtual Machine. I have copied VM and trying to run both Parity's parallel in both Virtual Machines. Since their enode is same on both VMs, I cannot run both Parity in ...
2
votes
2answers
930 views

Where can the parity blockchain files be found?

On my Mac I am looking for the Parity blockchain file for the ropsten chain. I checked the following locations: ~/.parity and ~/.local but both directories don't exist. ~/.ethash contains 1gb sized ...
2
votes
1answer
1k views

How to run JSON rpc with parity server?

I use a VPS where I want to run parity to synchronize the blockchain. I use this command : parity --chain frontier.json --rpcapi="eth,net,web3,personal,web3" --rpc --rpcaddr ipAddressPub --rpcport ...
2
votes
1answer
68 views

Where is the Parity v2.5.11 web UI at?

This used to open the parity web UI for my local node, but now the browser it says it cannot connect, as if I just entered any other bogus port: http://127.0.0.1:8180/ I upgraded from Parity 1.7 to ...

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