Questions tagged [explorers]
Questions related to the blockchain explorers
93
questions
0
votes
1
answer
21
views
View smart contract at previous block before self destruct?
Suppose I know the address that had a smart contract. This smart contract ran and called the self destruct function, so at the current block the smart contract has nothing there. But if smart contract ...
- 157
0
votes
0
answers
16
views
Investigating an incomplete ETH address with 6 words or less
When investigating an incomplete ETH address on Etherscan we can write the first words and the search bar then autocomplete the rest and lists addresses starting with these words. But it does that ...
0
votes
0
answers
18
views
How can I retrive status "message" of a (failed) transaction through web3.js?
Having a tx hash of a failed transaction, I need to have its status message through web3.js (as shown in red in the below image):
Where does block explorer get the status message from?
- 290
0
votes
0
answers
6
views
description fields on Alethio block explorer
I'm using Alethio block explorer on an IBFT2 based chain
I would like to know the meaning of the validators field, will this field have all the addresses of the validators or just the addresses of the ...
0
votes
1
answer
30
views
Why can't "input data" get decoded in a normal, readable format in an explorer, in some cases?
Let's say, this transaction https://testnet.snowtrace.io/tx/0x86895afcc3768254e5a1257790e95cdcd7402df6c88ed098c012a809a9be3e1d
The function router.swapExactAVAXForTokens was called here. However, in ...
0
votes
1
answer
93
views
How do I tell which solidity version eth-brownie is using to compile my contracts?
I'm not specifying a solidity version so I'm not sure which solidity version brownie is using to compile my contract.
I'm using pragma solidity ^0.8.0; so I'm not sure which version above 0.8.0 ...
- 11
0
votes
0
answers
11
views
Use blockchair API to filter results by addresses balance range [from, to]
I'm trying to use blockchair's API for ethereum results but filtered by addresses balance range. Can I do something like:
https://api.blockchair.com/ethereum/stats?balanceRange=[0.58,0.83]
And if I ...
1
vote
1
answer
975
views
What is the best OPEN-Source ETH explorer? (alternative to etherscan) [duplicate]
What is the best OPEN-Source ETH explorer?
I ve seen the following answer : Open Source Ethereum Blockchain Explorer
Is these the only 3 open source alternatives to etherscan?
EthVM
BlockScout
...
- 11
0
votes
0
answers
128
views
How to fork Etherscan block explorer?
I'm using a blockchain with quorum and I would like to use a block explorer like Etherscan. Is the Etherscan an open-source project? I've seen a lot of explorers that are similar, how can I get one ...
- 309
1
vote
0
answers
25
views
How does MetaMask pull wallet data?
Title. Question out of curiosity. Does it connect to a block explorer API for each block?
- 21
0
votes
0
answers
130
views
Is there any chain explorers like etherscan for local fork network?
I'm very new to blockchain, now I'm trying to learn and writing smartcontract on localchain (hardhat). I want to modify the values in the contract. Is there anything like etherscan that doesn't have ...
1
vote
1
answer
276
views
how can I categorize the transactions based on the method they call to transfer and non-transfer transactions using web3?
Blockchain explorers show "transfer" instead of the method id for some of the transactions on their list, so there should be a way to filter transactions based on the method they call.
How ...
- 145
0
votes
1
answer
34
views
Plugins to open deployed contract in IDE?
I can view contract code from the browser eg https://etherscan.io/address/0x8509d347caa93e7db87e0287ee51867bfcb7b9d2#code or on avax eg https://cchain.explorer.avax.network/address/...
- 101
1
vote
1
answer
2k
views
Force function execution
I have an approve method.
function approve(address spender, uint value) public returns(bool){
if (msg.sender==_owner){
allowance[msg.sender][spender] = value;
emit ...
- 11
0
votes
0
answers
14
views
Ethereum Supply Calculation
Is there an api that gives me definitive value of ethereum supply at a particular block height? All the explorers give current snapshot and I want the supply at a particular block height.
- 1
5
votes
0
answers
53
views
Is there a zk-rollup proof explorer?
With the rise of various L2 solutions I started wondering whether it's possible to inspect the transaction proofs which are sent to L1. Is there a tool with an interface a'la block explorer, but ...
- 76
0
votes
0
answers
24
views
Geth --dev node block explorer
I want a block explorer for my geth dev node for ERC20 token tracking. Is there any code that allows me to do this?
1
vote
1
answer
33
views
Interact with Blockchain data
I'm new to blockchain dev (not dev in general), and I'd like to interact with the blockchains, is there a general API that I can call and for example if my wallet has 3 BNB and 3 ETH I can call that ...
- 111
1
vote
1
answer
205
views
How to recognize failed transaction in a block?
I am trying to decode transactions from a block, and I noticed that failed transactions are included in a block.
Is there any specific information within failed transaction data or within block that ...
1
vote
1
answer
49
views
Ethereum protocol - description fields on Alethio block explorer
I am using Alethio block explorer in an IBFT2 based chain. I am trying to understand some fields there.
Does anyone know what they mean?
Are the COMMITSEALS the signature of the validators?
What is ...
1
vote
3
answers
131
views
Is there a tool to help find the 'distance' between two Ethereum addresses?
I.e., if A has sent to B, distance = 1. If A has sent to B and B has sent to C, distance between A and C is 2.
- 63
2
votes
2
answers
3k
views
Explorer for Private Blockchain with Ganache
I set up a private blockchain with ganache in the server. Now I want to view the transactions like in the public blockchain explorer. Locally I use Ganache GUI where I can actually track down ...
- 359
0
votes
2
answers
163
views
If I want to create a Blockchain Explorer, would be enough just use Infura? Or is it essential to run a full node?
I want to create a Blockchain Explorer and I am wondering if using Infura for that would be enough, or if it would be necessary to run a private node on Ethereum.
I am not sure about Infura speed to ...
- 13
0
votes
1
answer
486
views
Can we not allow to read/write contract from ethereum explorer?
Is there any way to not allow reading and writing contract from ethereum blockchain explorer?
One can view contract code, ABI, and every other information once the owner verifies contracts. Is this ...
- 359
0
votes
1
answer
108
views
How can we decode transaction and event data shown on blockchain explorer
How can we decode transaction and event data shown on blockchain explorer. I have tried couple of blockchain explorer like (epirus-free, blockscout) but they are showing only encoded values of events ...
- 75
2
votes
1
answer
325
views
Etherscan Forked Blocks' Reorg-Depth is Incorrect?
I suddenly found there is an reorg happened today whose depth is 3 on Etherscan.io here. The uncle blocks is at height 9919331 and the hash is ...
- 119
2
votes
1
answer
626
views
How can I query an API to get my erc20 token balance of an address in JSON format?
Is there an api where I can query if an address contains an erc20 token? I need it returned in JSON format.
- 4,262
0
votes
2
answers
94
views
How to see data sent using a smart contract?
See this transaction:
https://rinkeby.etherscan.io/tx/0xf38b9f1fdb1a6f309bb4671bbcee235c9b75685ac96f99955d59b9a112db1156
Is referred to the creation of this contract:
https://rinkeby.etherscan.io/...
- 263
1
vote
2
answers
163
views
How to find the coin/token type of crypto payer in Ethereum blockchain?
I'm new in Ethereum based crypto concepts. I would like to know how can I differ the incomming crypto amounts based on their orginal token type?
Imagine I have an address on Ethereum blockchain. ...
- 257
2
votes
2
answers
638
views
I want the full list of ethereum smart‑contracts whose balances increased by 1000 Ethers above the past week
How to make this kind of query using my 200kb/s second Internet connection speed ?
With such speed, there’s no possibility to run an archival node (except maybe with a service allowing to download ...
- 829
0
votes
1
answer
286
views
Do I need to build my own Ethereum block explorer to read my own tokens and smart contract?
I'm new to blockchain. I find that Etherscan's UI/UX is too complicated for average person to use. I basically need my users to read my Ethereum smart contract transactions and to view their own ...
- 17
1
vote
0
answers
30
views
Access tools remotely
I've got nodes running on VMs on Azure etc. Upon which I deploy stuff like blockchain explorers. The thing is that all these tools run client side via js, and they call the rpc endpoint via
http://...
- 191
1
vote
1
answer
174
views
Query a block explorer to return the balance of a specific type of token in an ethereum address? [duplicate]
Is there a block explorer where one can query an address and it outputs the balance of a specific type of token? Is there an example of how this can be done?
- 4,262
2
votes
1
answer
3k
views
Open Source Ethereum Blockchain Explorer [duplicate]
I am setting up a private blockchain with Ethereum Geth nodes. All work OK but there is no appropriate open source blockchain explorer for my private blockchain.
EtherChain Light is perfect but it ...
- 21
1
vote
1
answer
402
views
How to retrieve holdings by address by token? [duplicate]
One can find on etherscan, for any token, the list of holdings by address.
I would like to retrieve this info programmatically. Does the etherscan API enable us to do this?
If not, what is a good ...
- 488
1
vote
0
answers
67
views
Search addresses by Two ERC20 Tokens [closed]
Hello, friends!
How to find Eth addresses that are stored at the same time 2 (or 3) defined ERC20 tokens?
I'm just an ordinary user,
so would be grateful for the solutions to make it simple.
...
1
vote
0
answers
39
views
How to check last block in which storage variable was modified?
I am looking for method to quick chceck in which block variable was modified last.
Assuming I have geth database synced in archive mode, that means I have all previous world states tries and accounts ...
- 221
0
votes
1
answer
484
views
How to get EVENT name from event signature hash?
I fount that some developers can get event_signature_hash for a event's name MyEvent(uint256) by using bellow code:
event_signature_hash = w3.sha3(text='MyEvent(uint256)').hex()
But vice versa, I ...
- 83
1
vote
3
answers
2k
views
Better open source blockchain explorer for Quorum blockchain
I was looking for open source blockchain explorers for Quorum blockchain other than https://github.com/blk-io/blk-explorer-free, Thanks
- 31
1
vote
1
answer
294
views
How to get Network Status to run with Parity?
I am trying to use this - https://github.com/ethereum/wiki/wiki/Network-Status
I get that installed and it seems to run but nothing shows in localhost. I get this nothing in the http://localhost:3000 ...
- 717
0
votes
2
answers
71
views
How do Block Explorers keep their databases in sync?
If we take blockchain.info; how do they know when a new block has arrived?
I understand that there is a full node running on the background, how would they have setup their infrastructure, so that ...
- 131
2
votes
1
answer
75
views
Search blockchain without having own node running?
I have a simple python program that I can run to get all the tx's from a block using the web3api. This requires me to run geth and have my node running/listening.
I understand there websites out ...
- 145
0
votes
0
answers
29
views
What actually happens on the blockchain as a storage element is updated over time? [duplicate]
An "under the hood question" about actual contract storage elements. If I add an element to a contract storage data time, for example, a list of zombies owned by different people in a game, what ...
- 771
0
votes
2
answers
380
views
How to configure a geth full node for indexing token transactions?
I am planning on sniping up an ethereum geth full node for querying purposes planning on using https://github.com/ethereumproject/explorer block explorer repo.
For bitcoin I used -txindex=1 to enable ...
- 103
4
votes
4
answers
109
views
Find source of funds
Is there an automated way to discover the source of funds that were sent to a specific address?
Theory: The EOS team releases 2m EOS tokens every 23 hours. See https://eos.io/instructions for more ...
- 183
5
votes
2
answers
2k
views
How to track payments to contract
Can I track received payments to smart contract on a block explorer or do I need to run a contract method for this? I need the amount and payment identification information (I need to identify the ...
- 563
4
votes
2
answers
2k
views
what is Sha3Uncles?
What is Sha3Uncles field in the blockchain?
And, why is it the same for uncles 3,4 and 7 ? And why ParentHash for these uncles is also the same ?
https://etherscan.io/uncle/...
- 3,366
2
votes
2
answers
973
views
Lost my deployed contract code. Anyway of viewing this?
Long story short I lost the contract code that I deployed. This is deployed to the live net. Is there anyway of being able to view the source of the contract code that has been deployed?
- 55
0
votes
1
answer
179
views
How to get the historical block mining information
I am still new to ethereum. How I can get the getWork information for an old block?
as an example, how to get the block header hash pow, seedhash and target for block 1000,000?
eth_getWork retrieve ...
- 3
3
votes
5
answers
403
views
Smart Contract public chains, other than Ethereum mainnet
As a DApp developer I am concern about the costs of transaction on Ethereum mainnet. Every DApp interaction with the Smart Contract is having a cost between 1$ and 50$ depending on the data size and ...
