Bitcoin Stack Exchange
Bitcoin Stack Exchange

Questions tagged [query]

14 questions
6
votes
3 answers

How to query all utxos of an address from a full node?

I am new in the blockchain field, and I am trying to build my own block explorer from scratch to really learn about Bitcoin. I am currently running a full node in a raspberry pi, and I have already decoded the chainstate/UTXO-set with a levelDB…
Oscar Serna
  • 854
  • 1
  • 7
  • 13
5
votes
2 answers

Is there any tool available that can tell me the balance of bitcoin address on specific date?

Is there any tool available that can tell me the balance of bitcoin address on specific date? Like, what was the balance of 1XXXXXX on Jan 1st 2016? Looked up insight: seems not available.
legolars
  • 51
  • 1
  • 2
3
votes
1 answer

Local balance query for Bitcoin address

I would like to be able to query the balance of an address (not belonging to me). The data should come from a fully synced bitcoin full node inside the local LAN and I do not want to query any api services outside my LAN like blockchain or…
Michael
  • 202
  • 1
  • 7
1
vote
1 answer

Can you verify partial blockchain information from a third party, without yourself having an entire blockchain?

I'm considering consuming, or if unavailable, I'm considering providing, a bitcoin blockchain querying service along the lines of json rpc. Would it be possible for me as a consumer of such as service, to verify the integrity of returned data from…
Nigel Sharp
  • 71
  • 4
1
vote
1 answer

how to get realtime new transaction data in nodejs from bitcore

I want to run a private node, and use it to receive realtime unconfirmed transactions data into my nodejs script. How do I go about this?
Satonamo
  • 143
  • 5
1
vote
2 answers

retrieve all the transaction between two addresses

I've used this query to try to get all the transaction between two addresses: https://blockchain.info/multiaddr?active=1EipJdYVJbqsTSQhj1icK424AkMbyjvgBm|1LWwLvKWbcpiZYqCcwfuQ3gjjNJkxftmEJ but the thing is- according to my wallet there are many…
smatthewenglish
  • 1,133
  • 10
  • 23
0
votes
0 answers

Getting blockhash using bitcoin-cli command in shell

Currently, my node is syncing blocks and tip(height) is 230000. At this point, if I use command bitcoin-cli getblockhash 230000, the return information will be successful but, if I use bitcoin-cli getblockhash 240000, it returns error due to out of…
Hyunsoo
  • 363
  • 1
  • 7
0
votes
0 answers

Bloom Filter Response Processing In terms of Full-node

A SPV node have to work somethings to see whether his transaction is exist or not. Construct his filter with hash of transactions {his transactions, other1, other2, ..., otherN} filterload is filled to process his filter by full-node (by…
Hyunsoo
  • 363
  • 1
  • 7
0
votes
1 answer

What is a mechanism of method how to get the data in the blockchain(e.g. bitcoin, ethereum)?

There are websites which have APIs that allow you to trace transactions and lookup information like specific address balances, etc. I am wondering how these web service providers are able to provide the data from the blockchain. I think that they…
Hyunsoo
  • 363
  • 1
  • 7
0
votes
1 answer

Is there a way to query the blockchain locally if I am running a full node?

I'm running a full node on my PC and wondering if there is a way to query the blockchain locally via NodeJS instead of going through blockchain.info? It is very inefficient/slow to run queries through HTTP when I have all the data local.
Corbin
  • 265
  • 2
  • 8
0
votes
1 answer

Filter transactions by time on a given address

Is there an API that will list all transactions made on a given wallet address with the ability to filter by date? I prefer nodejs, but open to other suggestions.
Zaid Amir
  • 101
  • 1
0
votes
3 answers

How to learn to query the block chain?

I want to find out how many addresses have had x transactions over time. I want to find out the average bitcoin transaction size for over time...I want to do a bunch of different queries like that on a regular basis. Big picture: I want to do…
Gabe Harris
  • 1
  • 1
  • 3
0
votes
0 answers

Full explanation of what Electrum Server / Electrs does for data availability?

I am working on an on-chain data model in a corporate data warehouse setting. All data must live on an internal system where it can be easily joined to other datasources, and support a variety of high performance analytics use cases. The model will…
sha2fiddy
  • 21
  • 3
0
votes
0 answers

Extracting data from btc blockchain for a project

i'd like to know if it's possible to analyze the blockchain for addresses that do recurrent transactions (like DCA), and for the periods of time they put between each of these transactions. Is there a way to do this without having to download the…
forgetfuled
  • 1