Blockchain.info is a service that offers [tag:e-wallets], and allows exploration of the blockchain.

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Unknown key format when importing Private Key from Multibit to Blockchain.info

I'm trying to import a Private Key from MultiBit into Blockchain.info, but get an error saying "Error importing private key: Unknown Key Format". Is my MultiBit key in the wrong format or something?
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4answers
679 views

How can I withdraw my bitcoins from my blockchain wallet and convert them into cash?

I tried to withdraw from my blockchain wallet from blockchain, but I don't understand how to convert to cash and withdraw to the financial establishment available in my country.
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blockchan.info payment processing, how long?

I try to implement the payment processing API from blockchain.info I created a request by the example of their website, and receive a generated bitcoin adress: See an example here: ...
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1answer
28 views

Blockchain.info transaction unconfirmed for several days

I swept a paperwallet to blockchain.info and the transaction has been unconfirmed for several days...it looks like it was sent in multiple tiny transactions. Has anyone seen anything like this before? ...
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2answers
50 views

bitcoin stuck with no confirmations [duplicate]

I'm quite new to this. I have transferred coins to a wallet 4 hours ago and I'm still stuck with no confirmations. I do have a Bitcoin wallet on blockchain.info. I transferred from Bitcoin market ...
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1answer
13 views

What's the point of the hash160 field in blockchain.info API?

I've been wondering who/what could use the hash160 field of the blockchain.info API. For example, for the address "1N3Xxt13zbDLU66aSBiMB7AjRW1UiUFAau", the hash160 value is ...
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1answer
23 views

Blockchain API whitelist all IP addresses

I am currently trying to implement the blockchain API in my application. I have done this successfully however, I am having trouble whitelisting IPs. Each time a user accesses the app with a different ...
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27 views

Bitcoin core 64 bit has freezed

I downloaded bitcoin core 64 bit and it was synchronizing. I turn my laptop off and open the program again and now it frozen at " loading block index " . I have bitcoins on it. What should I do now ?
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1answer
25 views

How to cancel the callback url registered on blockchain.info

So i was testing the Blockchain receive API, and during the first trial, I had a typo on the callback url. Does that mean blockchain.info will retry to call that bad url 1000 times before it finally ...
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2answers
68 views

Blockchain.info - Forgot My Secondary Password. How to recover it?

I haven't accessed my blockchain.info account and I completely forgot my secondary password in order to send out bitcoins. I still have my mnemonic, but that's totally useless and MISLEADING as it ...
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1answer
15 views

advice on broadcasting a transaction

Sorry in advance if this question has been asked (I couldn't find it), but what is the best way to broadcast a transaction to the network programatically. I know that blockchain.info has /pushtx but ...
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1answer
58 views

blockchain.info transaction timestamps set into the future

There seem to be some irregularities with Blockchain.info's transaction timestamp (aka Received Time) for a set of blocks. The transaction times are recorded with unix timestamps well into the future ...
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1answer
47 views

What does this transaction mean?

First things first, I'm a newbie in everything related to bitcoins. I'm analyzing a few tens of addresses checking which ones have received payments, and one of them is the following: ...
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1answer
35 views

bc.info transactions with no timestamp

The last transaction in blocks 219882, 219888, and 219892 don't have a timestamp. And by last transaction I mean the last transaction shown in the json file. 219882 219888 219892 I find this to ...
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2answers
66 views

Transaction marked as “Newly generated coins” on Blockchain.info

On blockchain.info I saw a transaction labeled as "No inputs (newly generated coins)". Are these new coins generated from mining? How come that such a transaction can have 30 confirmations, while ...
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0answers
30 views

Is this pattern a tracking method or just a Bitcoin wallet making change to itself?

While following a particular transaction from a donation received in 2011 I noticed a pattern in the block chain. The entity donating would send .001 to an address and the remainder of the wallet ...
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0answers
31 views

Blockchain API - can I use it to find out number of transactions above amount x sent to an address?

I understand I can use the Blockchain API GET command to get the number of transactions that have been sent to an address (n_tx), but can I use the API to only return transactions in this count that ...
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1answer
47 views

How do I get the originating address using Blockchain.info's recieving API?

I'm using the blockchain.info/api/api_receive I have everything working fine but when I made a payment I can't find (in the callback) the bitcoin address of the payer, only the address of the ...
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33 views

Bitcoin payment using blockchain API

We have used the bitcoin payment by using blockchain API. Amount is not transfer by using blockchain API. In include.php we have configured to our database.We expect to send amount from Account1 to ...
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38 views

How to start https and http call according to enviornments

I am using insight api's for block chain. I have installed an ssl certificate for secure connection. In development mode, all calls should be http; in production mode, all calls should in https. There ...
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2answers
42 views

How to import data from Blockchain.info to Excel

can anyone explain how to transfer data from Blockchain.info to Excel. I am not familiar with the CSV format. Thank you in advance!
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2answers
52 views

Receive unconfirmed transactions using Insight API

I am new to Insight API. I want to receive unconfirmed transaction that are being broadcast to confirm by a miner to add in a block. I am using Insight API using RPC client. How I can get ...
2
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1answer
85 views

Send download link of a file after Bitcoin payment

I'm starting an online business. My website is hosted on OVH I would like to send a download link after a bitcoin payment. Are there specific stuffs I should be aware of? Is this difficult to ...
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1answer
156 views

How to generate a private key to create wallet through api in Block chain

I need to pass private key while creating a wallet in blockchain.info through api call which is defined here https://blockchain.info/api/create_wallet I'm using php for creating wallets. Please ...
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1answer
70 views

blockchain.info and blockexplorer.com show different balance for the same address

Does blockexplorer.com have a bug or some other reason? https://blockexplorer.com/q/getreceivedbyaddress/1KWd23GZ4BmTMo9zcsUZXpWP4M8hmxZwRU 1.95331249 ...
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0answers
94 views

Blockchain.info RPC API and deposit/withdraw problem

I'm using blockchain.info RPC to detect deposits using Node.JS as server, using listTransactions method. Because blockchain.info doesn't has walletnotify api. When processing deposits, there is no ...
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1answer
111 views

Multiple bitcoin transactions between addresses in the same wallet

I have two wallets: one in coinbase and one in blockchain.info. I imported several outside addresses(created in bitaddress.org) in my blockchain.info wallet. However, sometimes when I transfer ...
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1answer
106 views

Blockchain.info Wallet Format

I've noticed that BCI's Wallet version has been updated to version 2 in recent times (and also employs key stretching, amongst other security features). I've referred to BCI's Wallet Support Page and ...
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0answers
264 views

blockchain.info websocket: Error code = 1006, Unexpected end of stream

I am using javax.websockets to have a webSocket connection with Blockchain.info, except that it closes down after random intervals, and I can see the close reason as: 'Unexpected end of stream', ...
2
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1answer
66 views

Sites for searching the blockchain?

This is a general question, but what's the best way to search the blockchain? Blockchain.info lets you search by address, but it seems to be a side feature instead of its central purpose. Are there ...
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1answer
103 views

How to get the list of transactions that has gone into an address with the amount and date?

How to get the list of transactions that has deposited funds in an address, including information about the amount that has been deposited (sent towards my address not sent away from it), and the date ...
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0answers
169 views

Can't withdraw from blockchain.info: “Private key does not match bitcoin address [my address] = [probablyprivkey1] | [probablyprivkey2]”

I have some BTC (and I really need money now) on my Blockchain.info account, I can't withdraw them (just send them to another BTC address) as it tells me "Private key does not match bitcoin address ...
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1answer
212 views

How does blockchain.info api works?

Calling https://blockchain.info/multiaddr?cors=true&active=15PFsB56YYXwXSW6byaxHXfgGz2ySWnDzN I get a json response which I can not figure out if it has some sort of error or that I'm ...
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1answer
93 views

How can I use a vanity address as my main address

I obtained a vanity bitcoin address (1MonkeyQWbMzny7BNTA66W9wv6KaCFFAB7) along with its private key. I would like to be able to use this as my main address. Sites like BlockChain.info allow you to ...
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1answer
69 views

Why does Blockchain.info's My Wallet tx volume seem to exceed to total bitcoin network volume?

I was looking at Blockchain.info's tx volume (in BTC) over the previous year. It goes from about 100k to 400k BTC per day with a peak of over 850k BTC around November. ...
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122 views

Blockchain Receive Payments API: How to send money to input_address?

I use Blockchain's Receive Payments API. It generates input_address and callback works fine. But when I tried to send money to input_address (on the Blockchain Send Money page), it sends money to ...
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61 views

javascript convert from usd to btc (Is btc-e ticker faulty?)

Is the https://btc-e.com/api/3/ticker/btc_usd ticker faulty? My code takes a long array of btc-e raw price data (there ticker) and tries to convert each price into Satoshi. The array is named ...
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0answers
62 views

Using custom parameters in blockchain.info's HTTP payment callback

I have a node.js app that uses blockchain-wallet npm module to generate a new receiving address every time a client wants to pay. blockchainWallet.newAddress({label:customstring},function(err, ...
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1answer
48 views

Get a list of txs that can be used for a newer tx

I'd like to write a simple Bitcoin client that broadcast transactions. The model is pretty simple: Alice wants to send 10 BTC to Bob. We only know Alice's private key and Bob's address. For ...
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2answers
100 views

Bitcoin POS: payments between seller and buyer

My application has sellers with stored (public) Bitcoin addresses - lets say "receiving address". Also application allows anonymous buyers who can buy goods from these sellers paying by bitcoins. ...
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1answer
134 views

OP_Return in transactions at json_rpc_api at blockchain.info

I am writing a project in Ruby using JSON-RPC to communicate with blockchain.info. The API is available here: https://blockchain.info/api/json_rpc_api Is it possible to create a op_return txout using ...
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1answer
100 views

Is there a way to use My Wallet account with bitcoin-qt client?

I have some funds on My Wallet account (Blockchain.info) and I'd like to have a possibility to use them with my bitcoin-qt client. Is there a possibility to do that? Please give short description. I ...
2
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1answer
88 views

Security: Blockchain.info vs bitcoind

I want to set up a website that needs an online bitcoin wallet (able to deposit and withdraw at any time). Would it be better to use the blockchain.info's infrastructure through API commands or should ...
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3answers
156 views

Bitcoin transaction with dust output stuck

I made this transaction more than 24 hours ago, and it still has no confirmations at all. What should I do? This transaction was created by the mobile Blockchain.info wallet. At the time, it didn't ...
2
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1answer
106 views

How can Bitcoins be sent without Blockchain.info knowing your private key?

Blockchain.info is a hybrid bitcoin wallet with client-side javascript encryption. I understand that the wallet.aes.json where the private keys are stored is encrypted (client-side). But how can ...
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1answer
34 views

How do addresses that refer to a web site work? [duplicate]

Some bitcoin addresses on blockchain.info refer to an external website, see e.g. here: https://blockchain.info/tx/40c09e1fb345d258b8123c5e6ceda3d53575def3053c87bf7d5571c74fc2227d One of the ...
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1answer
84 views

Block chain api support - Im unable to seperate the credit and debit transactions using blockchain api

I'm using blockchain api to display transactions of credits and debits seperately, I'm using the below procedure for displaying credit and debit transactions. But credit transactions are showing in ...
2
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1answer
51 views

Difference between Outpoint structure returned from Blockchain.info and what is in the Protocol Specification

if you follow this link, you will see a specific bitcoin address. If you look closely at the prev_out field, it is not an outpoint structure. Inside of the protocol specification under transactions, ...
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2answers
178 views

Block Chain API for BTC transactions

I want to fetch transactions for an address from the following api: https://blockchain.info/address/$btc_address?format=json The thing is understanding the json returned from the api, I don't ...
2
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1answer
26 views

What does the main_chain value returned by blockchain.info mean?

What does it mean that for bitcoin block to be on the Main Chain? What other chains are there? Is this as opposed to testnet? This is regarding the main_chain value in the blockchain.info api here: ...