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This tag should be used for questions regarding the service 'blockchain.info'. Blockchain Ltd. is a company that offers a web wallet and provides a blockchain explorer under the domain blockchain.info.

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Error sending a raw transaction with hex

Why am I experiencing an error when trying to broadcast this transaction? of hex ...
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0answers
21 views

Helping in finding wallet [closed]

I used to do work with Virta pay before they became Virta Coin. I mislocated my wallet with them and was wondering if I would be able to get someone to relocate/retrieve it for me.
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1answer
21 views

Can't connect to rpc.blockchain.info with bitcoin-cli

I'm trying to, given a bitcoin address, retrieve the last X transactions to this address. After researches, I found this to be an interesting solution, as I don't want to download and validate the ...
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1answer
14 views

How to get time of input and output of a given a transaction?

I have a transaction ID and I need to get the time of input and the of output of that transaction (Unix timestamp) programatically using a block explorer or any API. Is this possible ? If so how can ...
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9 views

api blockchain.info receive confirmations count info about transaction

I am making some simple pament gateway using bitcoinchain.info public api. I am generating a new address and after that checking one time per minute the status of this address with https://www....
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2answers
98 views

Need help to recover blpckchain.info wallet, my wife forgot her password and the brute force with btcrecover is not catching the password

I used btcrecover to extract the wallet file (wallet.aes.json) from a blockchain account and I have been running btcrecover with dictionaries of my making but it has been going on for weeks and I am ...
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0answers
22 views

jsonRPCClient bitcoin not generating transaction id however new address is generated

I'm using jsonRPClient to connect to my, I'm able to generate new wallet address using getnewaddress however when i make a transfer using sendtoaddress transaction id is not generated. sendtoaddress ...
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1answer
31 views

Does the estimated transaction volume on Blockchain.info exclude exchanges?

Does the estimate of transaction volume provided on Blockchain.info exclude the major Bitcoin exchanges? According to this paper: https://siepr.stanford.edu/sites/default/files/publications/17-033_1....
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1answer
32 views

relating the UTXO set to the total supply of bitcoins

If the number of Bitcoins in the UTXO is always equal to the number of mined Bitcoins See: How is a wallet's balance computed? then why do the number of bitcoins mined depicted here: https://...
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1answer
26 views

Unable to send total amount of bitcoin even after deducting the transaction fee what do I do? [closed]

Hi I recently imported a wallet to blockchain wallet from a backup, the wallet and everything shows up and everything but since the imported wallet is not protected by the backup phrase and not as ...
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0answers
24 views

How to prevent 51% attack on newly created coin [duplicate]

I am interested how bitcoin managed to prevent 51% attack in the beginning? I am about to create my own coin and i want miners to mine blocks. but The problem is I am afraid  51% attack might destroy ...
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0answers
44 views

Practical Implementation of Liquidity Provider for Crypto Exchange

I understood about the basics of the liquidity provider ,but I wanted to know about what are the ways to provide the liquidity provider for my exchange. Do I need to practically implement it? How can ...
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2answers
45 views

Providing Liquidity in CryptoCurrency Exchange!

Can anybody give some idea about the issue of providing liquidity to the users for creating a cryptocurrency exchange ? Thanks!
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1answer
25 views

XAPO's flow from wallet to vault - a different wallet address used for the transfer

I have a XAPO account and I moved a bitcoin from Bittrex from XAPO. Now, XAPO has provided me with a wallet address a1. Now when I have moved my bitcoin from my bitcoin wallet to vault and checked ...
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1answer
67 views

How do you know that your private key has been stolen

how do I know whether my private key has been stolen ?
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1answer
84 views

Transfer bitcoins from one wallet to another

We have started building a bitcoin exchange. Now we basically want to create and address that let users keep their bitcoin asset on that address and we will charge minimal fees to them when they ...
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1answer
109 views

I NEED YOUR HELP URGENTLY Bitcoins

I really need your help on this. It has stated in my wallet that i've received my bitcoins of 1.182691BTC on 29/05/18. This's my wallet address: muFjdWSy2DKStSP2gUH2aHZq6kRBva8ZDV it stated on the ...
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1answer
29 views

Is there a webpage showing some of the latest orphaned blocks?

Blockchain.info has a couple pages about orphans, but the chart page does not agree with the list page. My admittedly brief search for a page that shows orphans didn't turn up anything that was ...
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2answers
39 views

Can I get the same stats as are on blockchain.info and btc.com by running a full node?

There seem to be some discrepancies between blockchain.info and btc.com, specifically I am looking to extract the following info: "Relayed By", there was a block that was listed as unknown on ...
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1answer
23 views

BCH from Poloniex

I had a BTC balance with Poloniex prior to the fork and I now have BCH too. I wish to withdraw the BCH from Poloniex however am unsure of where it can be withdrawn to. Previously I have created BTC ...
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2answers
87 views

Bitcoin API(s) - how to pair (or obtain) BOTH sender and receiver addresses with a transaction ID (hash)

Various block explorers exist, which offer REST APIs. So far been using blockchain.info and btc.com Here is what we have: - List of bitcoin addresses Here is what can easily be got with that info: -...
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0answers
17 views

I gave someone a bitcoin cash address to send btc and now it's not showing up on my bitcoin cash app [duplicate]

I am new to bitcoin so i made a mistake of sending my receiving address from bitcoin cash to an online casino I won money on. The bitcoin never showed up in the cash wallet app but when I look up the ...
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0answers
222 views

withdrawing bitcoin from blockchain to bank account?

Hi i have bitcoin in my Blockchain Wallet and want to sell them and transfer the funds to my Commonwealth Bank Account in Australia. I have no idea how to do it. Can anyone help me complete this ...
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1answer
35 views

Can i recover exodus with 12 words form blockchain.info?

At btgexplorer i saw that i have some BTG. I want to claim it from by blockchain.info wallet. I followed this article https://medium.com/@kuzdogan/how-to-claim-your-bitcoin-gold-from-blockchain-info-...
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1answer
60 views

What does the 'Estimated BTC Transacted' value mean on blockchain.org?

After reading this question on how it is calculated, I was wondering what it means. What does the 'Estimated BTC Transacted' number on blockchain.org refer to? What does it mean?
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1answer
40 views

find out total balance on MainAccount

I don't understand receiving address usage at https://blockchain.info/api/api_receive As I understand it it should work like this: MainAccount |--generatedReceivingAddress1 (then someone send btc and ...
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0answers
108 views

How Can I tranfer my bitcoins from watch only wallet, If having Private key, but forgotten private key password

I have wallet on the blockchain.info, I have one main wallet, another one have watch only address, I have private key for it, I want to spend coins from my watch only wallet. But I lost the password ...
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4answers
313 views

Blockchain Address gap limit solution

I want to use blockchain API for my store but the wallet only monitoring last 20 generated address. Quote from https://blockchain.info/api/api_receive: As defined in BIP 44, wallet software will ...
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1answer
41 views

transaction that was included in a block without my permission

After requesting for bitcoin it automatically sent to my blockchain wallet after that it was then sent out without my permission again to another address and it never arrived in my final balance but ...
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2answers
69 views

Raw data of transactions in all blocks

As of April 16 2018, there have been 518563 blocks (e.g. https://blockexplorer.com/api/status?q=getBlockCount). Is anyone aware of a way to get the number of transactions in each of those 518563 ...
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0answers
50 views

Blockchain.info not calling my callback urls

I am trying to integrate bitcoin payments into my website and everything works well till I get to the part where blockchain.info has to notify me when a payment is made into a generated address. They ...
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1answer
65 views

On Blockchain.info, how many addresses can I pass into one API call?

Most of the Blockchain.info API calls (eg Unspent outputs) allow you to specify multiple addresses in one call separated by "|". Is there a limit to how many addresses I can pass in? If I pass in ...
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30 views

Lost money sending bitcoin from Blockchaininfo

I made 2 transactions from my blockchaininfo account totaling over 5000usd, each time I tried the transaction, I got this error bitcoindException(Super=com.neemre.btcdcli4 Error#-26:66:mempool min ...
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0answers
26 views

Can someone explain indepth what the blockchain is? [duplicate]

Can someone explain what the blockchain is in detial?
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3answers
716 views

Api Base URL for Bitcoin Cash

I have Successfully integrated Bitcoin To get payment so to verify Transaction from given address, I use https://blockchain.info/multiaddr?active=$address|$address , which is working for Bitcoin. ...
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3answers
93 views

Private Key Problem

I made an blockchain.info wallet and I want to obtain the private keys for my addresses. In my old blockchain.info wallet, I could find the private keys, but in the new one the private keys are not ...
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1answer
123 views

How to listen to an address or transaction_id continuously?

I am running bitcoin core on my node. I have two questions. 1) I want to get notified whenever there a new transaction in the blockchain. 2) If I give an address, I should get all the details about ...
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1answer
58 views

Can I export my funds from blockchain.info with the backup phrase?

For some reason lately Blockchain.info's 2FA emails haven't come through. I tried resetting 2FA emails with my back-up keys and did it successfully but now the 2FA emails aren't coming to the new ...
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0answers
56 views

How can I know exact available balance for an address to spend?

Assume scenario as below. My address has 20BTC. I send 5 BTC to someone, My Final balance still shows 20 BTC, with -5 unconfirmed balance. so I assume my available balance to spend is 20 - 5 = 15 BTC....
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1answer
220 views

Recovering the private key from a blockchain wallet address

One of my friends used my wallet to import a funded blockchain wallet to my wallet id. First this wallet is watch-only and I can't spend the bitcoins inside this wallet because I need the private key. ...
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1answer
100 views

Where do I obtain private keys?

Just received my profits from a "watch only" address, where do I obtain private keys?
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2answers
184 views

What options do I have to avoid API gap limit? I am using xpub keys

I am building a app, and the design is, the "welcome page" has a qr code allowing the user to purchase a single-use of the app. Blockchain.info conveniently allows you to use xpub to generate ...
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1answer
114 views

Where is the extraNonce in this coinbase transaction here?

https://blockchain.info/tx/c1669dabe1bcadf50c4b712e42da7b3d3152aef53752731b04a4f585dde6f5f2 The coinbase states this: ...
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1answer
111 views

Does blockchain.info show balances for addresses that are in cold storage?

If a miner mined a large amount of coins and these coins were stored offline once generated, would the balance of the addresses that hold these coins still be viewable on a blockexplorer like ...
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2answers
118 views

bitcoin cash from fork no longer visible on blockchain.info

I had bitcoin before Aug 2017 on Blockchain.info. After the fork there was a period of time that i could see my BCH balance in Blockhain.info's settings. i can no longer see it. how do i get access to ...
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1answer
50 views

How to access a blockchain.info wallet's funds from another site like greenaddress.it

I have imported a wallet to Blockchain.info but because my country now blocks the access to Blockchain.info I can't access my funds in that wallet. How can I import or somehow link my wallet to ...
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1answer
211 views

Blockchain.info testnet payment APIs

I have created a testnet wallet on testnet.blockchain.info and added some testnet bitcoins to it. I want to test the payment APIs so I am following the documentation on how to Generate a receive ...
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0answers
76 views

Why Blockchain.info wallet did not send bitcoins to the address that I specified

I imported a private key recently in Blockchain.info wallet and tried to transfer the amount to a bitcoin address, but rather than sending the bitcoins to that address, it sent them to the default "My ...
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0answers
32 views

Use multichaind to synchronize with litecoin

I'm building a program that analyzes the bitcoin blockchain information (statistically). Specifically, I need the mapping All Wallets -> Transactions, as in blockchain.info. Currently, I'm using ...
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1answer
126 views

Search xPub address on a full node

I am running a full node & using bitcoinABE to run a block explorer. I have couple of wallets on 3rd party wallet providers where I can do xPub Similar to blockchain.info xPub search how do I do ...