Questions tagged [raw-data]

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38 votes
2 answers
12k 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 ...
ThePiachu's user avatar
  • 43.1k
33 votes
3 answers
13k 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!). ...
Wizard Of Ozzie's user avatar
31 votes
2 answers
25k 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 ...
Wizard Of Ozzie's user avatar
19 votes
4 answers
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.
ACyclic's user avatar
  • 427
19 votes
4 answers
16k 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 ...
Mike's user avatar
  • 415
18 votes
4 answers
43k 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, ...
Vinnie James's user avatar
18 votes
6 answers
26k 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 ...
Jigar Joshi's user avatar
15 votes
6 answers
25k 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 ...
Nathan Parker's user avatar
9 votes
4 answers
4k 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 ...
Steven Roose's user avatar
  • 11.8k
9 votes
1 answer
860 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 ...
Fernando Tiberti's user avatar
9 votes
1 answer
5k 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 ...
Konstantin's user avatar
8 votes
2 answers
8k 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 ...
Steven Roose's user avatar
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8 votes
1 answer
1k 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 ...
Ninazu's user avatar
  • 195
7 votes
3 answers
6k 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 ...
user54512's user avatar
  • 307
6 votes
3 answers
22k views

Anyone know of an API for RSI and other indicators? [closed]

I am looking for Relative Strenght Index and other market indicators API's for cryptos. I don't think TradingView provides one but maybe you know one?
Wizzardzz 's user avatar
6 votes
1 answer
459 views

What is the different between CompactSize and VarInt encoding?

Pieter Wuille's definition of CompactSize encoding seems to match Greg Walker's definition of VarInt encoding, yet the BitcoinWiki claims that CompactSize is not to be confused with VarInt. What, if ...
drogos86's user avatar
  • 147
6 votes
1 answer
876 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://...
curiosity's user avatar
  • 365
6 votes
2 answers
387 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 ...
user41830's user avatar
5 votes
1 answer
4k views

How to get raw block data?

I can use getblock json rpc method to get parsed block details, however I need the actual raw data. Is there any way to get raw block data using Bitcoin Core?
Andrey Lobarev's user avatar
5 votes
2 answers
981 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: "...
Wizard Of Ozzie's user avatar
5 votes
1 answer
500 views

Which blk*.dat file contains a particular block?

Is there a way to find out which blk*.dat file contains a particular block? For example, it would be useful to know which *.dat file contains block 478558, which is the point where BCH forked from BTC....
D R's user avatar
  • 153
5 votes
1 answer
2k 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 ...
ThePiachu's user avatar
  • 43.1k
4 votes
6 answers
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 ...
deepbrook's user avatar
  • 1,672
4 votes
3 answers
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 ...
glglgl's user avatar
  • 143
4 votes
3 answers
15k 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.
fyquah95's user avatar
  • 205
4 votes
1 answer
536 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?
ThePiachu's user avatar
  • 43.1k
4 votes
1 answer
243 views

BIP324 encrypted packet structure

I recently saw the BIP 324 proposal. It shows us there can be some privacy enhancement by using ECDH secrets and encryption algorithms such as ChaCha20 and AEAD-ChaCha20-Poly1305. The proposal ...
Loopite's user avatar
  • 301
4 votes
1 answer
25k 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 ...
irkinosor's user avatar
  • 151
4 votes
1 answer
97 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 ...
paralogical's user avatar
4 votes
1 answer
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. ...
ThePiachu's user avatar
  • 43.1k
4 votes
3 answers
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/...
Jabburen's user avatar
4 votes
2 answers
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.
steampowered's user avatar
4 votes
1 answer
3k 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 ...
HenryDorsettCase's user avatar
3 votes
3 answers
4k 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 ...
Hendeca's user avatar
  • 133
3 votes
1 answer
193 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 ...
curiosity's user avatar
  • 365
3 votes
1 answer
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 ...
ThePiachu's user avatar
  • 43.1k
3 votes
1 answer
224 views

Is there evidence for lack of stale blocks?

There was a recently published academic paper "Bitcoin’s limited adoption problem" which used a statistic that the network latency is around 15 seconds. Obviously, this is not true: One can ...
MicahW's user avatar
  • 81
3 votes
3 answers
3k views

.csv file of every block timestamp in btc history

i am looking for a .csv file of every block timestamp in bitcoin history with the block height. i can get one day at a time from bitcoin.info but i dont fancy manually copying and pasting over 3000 ...
joaf bresj's user avatar
3 votes
1 answer
856 views

Transaction outputs with value 0

If I am correct, some transactions have outputs with "value" field equal to 0, and some even have all their output "value" fields equal to 0. See for instance: transaction ...
Matthieu Latapy's user avatar
3 votes
1 answer
653 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?
Randomblue's user avatar
3 votes
2 answers
332 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 ...
ThePiachu's user avatar
  • 43.1k
3 votes
1 answer
328 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 ...
Andrew's user avatar
  • 33
3 votes
1 answer
1k views

How to get full Block information like blockchain?

How to get these values? Output Total Estimated Transaction Volume Transaction Fees Relayed by
Gustavo Cortez's user avatar
3 votes
1 answer
87 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?
Seshu Bonam's user avatar
2 votes
1 answer
170 views

Raw data vs information encoded in OP_RETURNs

Imagine I want to fill the 80 bytes of OP_RETURN data with zeroes, so that the resulting data is 640 bits set to 0, or 160 hex digits set to 0. The data is 640 bits but the information encoded is much ...
Son Kaos999's user avatar
2 votes
2 answers
805 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. "...
MikiBelavista's user avatar
2 votes
3 answers
3k 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, ...
joejacobz's user avatar
  • 131
2 votes
2 answers
425 views

How to delete an element of an array in an Ethereum contract? [closed]

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 ...
ThePiachu's user avatar
  • 43.1k
2 votes
3 answers
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 ...
ThePiachu's user avatar
  • 43.1k
2 votes
1 answer
4k 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 ...
SLee's user avatar
  • 133