Questions tagged [raw-data]

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29
votes
2answers
7k views

What is TxIn's sequence?

I'm currently trying to generate the genesis block with my code and I've stumbled upon the TxIn sequence field that is not explained in the Protocol Specification wiki page, nor does it seem to appear ...
23
votes
1answer
5k views

How is the whitepaper decoded from the blockchain (Tx with ~1000x m of n multisig outputs)

The whitepaper is apparently encoded at 54e48e5f5c656b26c3bca14a8c95aa583d07ebe84dde3b7dd4a78f4e4186e713, which is an m of n multisig Tx with 947 outputs (just under the scriptsig limit of 20kB!). ...
22
votes
2answers
14k views

Redeeming a raw transaction step by step example required

I am looking, specifically, for a step by step example transaction of sending Bitcoin which uses an actual transaction (How To Redeem A Basic Txn, from a few years back, does a great job of outlining ...
19
votes
4answers
13k views

Reliable, efficient way to parse the blockchain into a SQL database

I need to generate a SQL database (preferably SQLite3) of every transaction that has occurred in the blockchain. Is there an efficient way to do this using open-source software? I'm attempting to do ...
17
votes
5answers
18k views

Where can I get all historical trades BTC price data?

Where can I get all historical trades BTC price data? (There are some similar questions, but I am looking for high-resolution data, while the previous questions asked for lower resolution data, such ...
17
votes
4answers
4k views

Is there a historical timeseries of market depth & transactions available?

Has anyone stored the historical market depth & tick data from MtGox? Is it available publically? Would be useful if you were making a bot.
16
votes
4answers
37k views

Anyone know of an API I can get historical price time series for multiple coins

I'd like to build some historical price charts, to use in my cryptocoin portfolio tracking app, using time series data (with HighCharts js). Anyone know of an API that provides this price data, ...
11
votes
6answers
20k views

How to store data on the blockchain?

I am wondering if it is possible to give someone a bitcoin transaction ID and with that he can read some hidden data, like the blockchain.info notes on transactions, but for real, stored in the ...
9
votes
1answer
595 views

How much out of order are the blocks stored in the blk*.dat files?

To be more exact: Given two blocks A and B, with heights A < B, but with positions in the blk file (we'll call them pA and pB) pA > pB. What is the maximum amount of blocks that there could be ...
8
votes
4answers
3k views

Is there a user-friendly tool for creating and signing raw transactions?

The title stands for itself. The only tool for doing so I know of is the bitcoind daemon, but it is for from user-friendly. A web-tool in JS would be ideal or a simple CLI tool with clear ...
8
votes
1answer
855 views

UXTO DB structure

After update Bitcoin Core to version 0.15, chainstate database changed format of data. Old prefix of key has been 0x63, now 0x43, and key/value are different Where is the new format described, or ...
8
votes
1answer
4k views

How do I read peers.dat file to get a list of all peers seen or that bitcoind has connected to?

In version 0.8.6 of Bitcoin, I see that peers.dat file is a custom database format declared in db.h:317 (class CAddrDB) and defined in dh.cpp:485. Any ideas on how I could go about reading the data ...
6
votes
1answer
515 views

what are vin_sz and vout_sz in tx part?

I am trying to understand the raw blocks better: vin_sz and vout_sz are some of the unknowns. does this values (sz=size?) have something to do with a number of confirmations? example: https://...
6
votes
2answers
226 views

special block version or is my data corrupt?

I've recently written my own blockchain parser. It works well (yay!) up to a certain block and then fails because the data read is pure nonsense. I've tracked down the error away from my code to the ...
5
votes
3answers
4k views

Where can I download BTC historical ticker data?

Where can I download historical data for Bitcoin price for mtgox? In this 2 Year old thread: Where can I get historic data series of Bitcoin prices? The described solution is as follows: download ...
4
votes
6answers
5k views

Where can I find Crypto Coin data?

I'm looking for sources of crypto currency data, preferably historical, which I can use to back-test my bots and/or analyze the market. Is there a reliable source for this online ? Do exchanges offer ...
4
votes
3answers
1k views

Limit size of data files

As the mere size of the constantly changing data file tampers with my backup concept, I would like to ask if there is a way to split this file into many smaller pieces. I have no problem with the size ...
4
votes
1answer
518 views

Raw block / other messages

Where can I find a raw version of the Bitcoin blocks and other messages that are sent between the Bitcoin clients?
4
votes
1answer
23k views

Where can I find historical exchange rate data for BTC/USD? [duplicate]

I'm looking for historical exchange rate data for Bitcoins/USD beginning in 2010, but I haven't been successful. This is for academic research. I tried bitchart.org. I don't know how to access the ...
4
votes
1answer
1k views

JSON-RPC getwork data field

I recently tried playing around with the getwork command for JSON-RPC and I'm trying to understand what I got out of it. According to the API Call List wiki entry, the "data" field should contain the ...
4
votes
1answer
89 views

Time series data for issues listed on the (now defunct) GLBSE

I would like to get the following data for every issue ever listed on GLBSE: Time series of closing prices since IPO to de-listing (or closing of GLBSE), Date and quantity of initial and secondary ...
4
votes
1answer
1k views

How to return Bitcoins to sender through Bitcoin API?

I want to get information about the creator of a given transaction through Bitcoin API. More specifically, any or all addresses they sent their Bitcoins from, so I can return some of the money back. ...
4
votes
3answers
2k views

Getting historic exchange data through an API

I'm trying my hands on a trading bot, but I need a website to pull trade data for min. the last 3 days. This can be from any major exchange. Eg. the exact same as this: https://www.bitstamp.net/api/...
4
votes
2answers
2k views

How to interpret Mt Gox Live orders chart

How does one read and interpret the data on the MtGoxLive/Orders chart? The axes have units. The new help link at the bottom does not have much information.
4
votes
1answer
2k views

Details on Genesis Block

The question asked here displays the genesis block in pretty good detail. I am still trying to get a breakdown of some of the elements seen here (and some others not seen here): The Merkle Root Time ...
3
votes
1answer
4k views

How to retrieve all addresses with non-zero balance and their balances?

I'm looking for a way to retrieve all address balances of addresses with a non-zero balance in the blockchain. Is there a software tool that can calculate the balances in an accessible format? Or ...
3
votes
2answers
8k views

Raw Block data in Hexadecimals

Is there any Web API available for us to query Blockchain data in hex format? The format should follow the standard (https://en.bitcoin.it/wiki/Block#Block_structure) structure rather than JSON.
3
votes
1answer
170 views

Is the current number of confirmations visible somewhere in the raw block?

Is the current number of confirmations visible somewhere in the raw block output created by blockexplorer or blockhain.info? Is this information available in the raw stream or is the number of ...
3
votes
1answer
2k views

How to access any transaction detail in Bitcoin version 0.8 and above?

Since the Standard Client version 0.8 removed the full index of all historical transactions, some Bitcoin applications that relied on that functionality have stopped working. For example, one is no ...
3
votes
2answers
640 views

Non standard Tx with obscure OP codes: examples

I've been writing Python code to fetch various transactions and came across this: 77822fd6663c665104119cb7635352756dfc50da76a92d417ec1a12c518fad69. The script field is as follows: scriptPubKey: "...
3
votes
2answers
305 views

Getmemorypool example?

I'm currently trying to figure out how to properly use Getmemorypool for mining and I'm having some problems with it. Are there any examples provided somewhere on how to properly call that RPC with ...
3
votes
1answer
287 views

Where can I get intraday orderbook BTC/USD? [closed]

Where can I get intraday orderbook BTC/USD? Hey there, I am searching for intraday orderbook BTC/USD of any exchange for at least one day. I have found that it's available only for some money. Is ...
3
votes
1answer
1k views

How to get full Block information like blockchain?

How to get these values? Output Total Estimated Transaction Volume Transaction Fees Relayed by
3
votes
1answer
83 views

Can a blockchain transaction history be updated by text messages using a mobile network?

Is it possible to update Bitcoin transactions over mobile networks using texts or voice data transmission?
2
votes
2answers
395 views

How to delete an element of an array in an Ethereum contract?

I am wondering - is it possible to delete a single element of an array in Ethereum without having to create a new array and copying the entire array? Reading some of the documentation, I can't seem to ...
2
votes
3answers
568 views

Are there any blockchain explorers that provide raw Tx data and block headers?

I've looked at some of the more popular blockchain explorers, but none of them seem to provide the feature I'm looking for. I'd like to find a blockchain explorer that allows you to see raw Tx data ...
2
votes
1answer
2k views

How get raw block data?

I can use getblock json rpc method to get parsed block, but I need raw data. Is there any way to get raw block data using bitcoin core?
2
votes
3answers
1k views

Bitcoin pool and getwork data validity

Bitcoin pools need to check data returned with getwork for validity (proper hashing result, etc.). Bitcoind that issues the initial getworks is also able to perform some data checking, but it might ...
2
votes
1answer
2k views

Are there any Python modules that decode raw transaction data?

I'm currently doing RPC calls to bitcoin-cli within python to get raw block data: bitcoin-cli getblock BLOCKHASH False I've already written a function that cuts off the block header and splits the ...
2
votes
1answer
72 views

Finding the timing of blocks, afterwards?

I understand that the timestamps on blocks are not fully accurate. Given only that information, it's efectively impossible to do retrospective analyses of timing of blocks. (For example, this; http://...
2
votes
1answer
478 views

Can Bitcore decode a raw tx?

I have a serialised transaction in raw hex format that I want decoded in JavaScript. Can Bitcore do that for me?
2
votes
2answers
2k views

How much binary data (bytes) could I put in a transaction and how?

I know that some people had put text, pdf and images in the blockchain. I wonder which are the limits in order to have a minimum "bytes/btc" value in regarding the blockchain as a permanent database. ...
2
votes
1answer
125 views

Block Explorer, which fields are reversed, and which are the same as in a raw block dump?

Recently I'm trying to properly recreate the genesis block in my low-level application. To do this, I use the Block Explorer to get the proper values for different fields, but at times it can be very ...
2
votes
1answer
409 views

Send raw transaction (have tx_hex) on litecoin testnet using api or module

I have raw data (tx_hex) for raw transaction, but I cant send it to litecoin tesnet using post request to testnet.litecore.api. If I insert tx_hex manually in the browser, the transaction is correctly ...
2
votes
1answer
138 views

How many shops accepted BTC? Is it somewhere roughly statistics data?

I am writing bachelor thesis. I need to include a graph on "how many shops or companies accepted BTC". Do you know where I can find historic data or a graph for this?
2
votes
2answers
299 views

Access to exchanges' (especially Mt. Gox's) transaction history?

I'm attempting to do statistical research on the Bitcoin market, and I would like to have access to the transaction data of as many exchanges as possible. Specifically, I'm looking for every trade ...
2
votes
1answer
514 views

Looking for bitcoin and other cryptocurrency intraday prices

I've come across some datasets that include every trade made but I'm just looking for the price of bitcoin at a high frequency. Every minute would be ideal.
2
votes
0answers
373 views

Bitcoin raw transaction hash signing

I was just wondering when you're at the double hashing part of making a transaction do you need to specify the scriptpubsig like: 01000000 01 ...
1
vote
2answers
2k views

Is it possible to download all blockchain raw data?

I'm interested in doing some analysis on the blockchain that would require specific information about all individual transactions within each block. I don't need the data to be updating in real-time, ...
1
vote
2answers
159 views

What are the hashes in Unspent outputs?

I am a newbie to Bitcoin. Looking at curl https://blockchain.info/unspent?active=1Cdid9KFAaatwczBwBttQcwXYCpvK8h7FK I guess that the script is the owner's address.I am not sure about this. "...