The blockchain.info tag has no wiki summary.
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1answer
13 views
Blockchain.info js verifier error
I got this error connecting to blockchain.info, does anyone know what that means?
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2answers
23 views
Can an unconfirmed transaction that only Blockchain.info shows be manually re-broadcast?
Blockchain.info shows a transaction that was created by Blockchain.info/wallet but for whatever reason the transaction didn't confirm right away and appears to not be getting re-broadcast (perhaps ...
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48 views
blockchain.info iPhone wallet app sends without transaction fee
I recently sent some bitcoin to a friend using the blockchain.info iPhone app and it sent it with 0 transaction fees. As a result it caused an awkward situation as my friend was watching block after ...
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2answers
32 views
Blockchain.info API error handling
I've been working on a project involving use of the various Blockchain.info APIs (specifically the Blockchain Data API), and am wondering if anyone has tips regarding error handling: the API ...
4
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2answers
306 views
Hacked my blockchain.info wallet, stole 760 coins
Two days ago my wallet at blockchain.info was hacked, everything was taken (760 coins).
https://blockchain.info/tx/0619d221a761a3b8ec205773440fa6607d65957ef985dac5fb5273a08bda2c89
Besides the ...
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1answer
25 views
Is there an OS X desktop client for BlockChain.info?
I know it may be possible to achieve on Bitcoin-Qt app but don't want to download the whole blockchain into my laptop. I just want a desktop GUI for my BlockChain.info wallets. Is this possible? If ...
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0answers
45 views
Blockchain.info Shared Send
Can anyone comment on the trustworthiness of blockchain.info's mixing service (shared send). Also would it be possible for things to go wrong internally resulting in my loss?
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2answers
138 views
How many Bitcoin addresses are there?
I was wondering where I could see how many unique addresses currently exist in the blockchain, and especially how many of those have a positive balance. Is that data available somewhere?
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1answer
126 views
I've sent a small low priority transaction with insufficient fee with blockchain.info wallet, what will happen next?
I've sent a transaction which has a <0.01 BTC output, with zero fee using blockchain.info Android client. It is not being relayed (violating memory pool rules of bitcoind). What can I do to recover ...
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1answer
113 views
How do I import to MultiBit from Blockchain.info?
I have a single password and a yubikey on my account at blockchain.info
When I try to import the wallet.aes.json file nothing really happens.
When I select the import file, MultiBit never displays ...
2
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1answer
57 views
added security/safety to multiple blockchain.info wallets
If I want to store a substantial number of Bitcoins, would there be any add security or safety to doing this in multiple blockchain.info hybrid ewallets, in stead of all in one?
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2answers
91 views
How does blockchain.info access my wallet in MyWallet
I made a wallet at blockchain.info and enabled two-step authentication using Google Authenticator.
As I understand it, the operator of blockchain.info cannot access your wallet (unlike e.g. MtGox). ...
1
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1answer
36 views
What actions trigger the need to obtain a new backup with Blockchain.info/wallet?
Other clients, including Bitcoin-Qt, use a key pool so that a backup is still valid for a while.
Blockchain.info/wallet doesn't use a key pool.
After a backup of the wallet is obtained and archived, ...
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2answers
73 views
How to read the transaction pages on blockchain.info?
I read the original Bitcoin paper and think I understand it but I'm having a hard time relating it to the transaction pages on blockchain.info. For example, sometimes there are 2 outputs and neither ...
2
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1answer
168 views
Lost my BTC or they've been stolen
I have a blockchain.info wallet. Last night I decided to set up a wallet for my daughter so I signed out of my account. Created one for her and then had difficulty signing in to mine, I had about 8 ...
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0answers
37 views
Why coinbase doesn't address callback?
I am using PHP cURL to generate new address from coinbase. As per this documentation we get notification on the callback url when any transaction is made on the generated address. But I am not getting ...
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1answer
70 views
What does this transaction data mean?
I'm new to Bitcoin development, and haven't been able to find a good resource for deciphering transaction data. Could you please explain what the following keys signify? For example, what do the "in" ...
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1answer
61 views
API with reliable address callbacks?
I want my app to be able to create addresses and be notified when an address receives a deposit. What I've tried so far doesn't work reliably enough.
I've tried the Coinbase API (address callbacks ...
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1answer
113 views
How do APIs like Blockchain.info and BlockExplorer work?
When I query an address using either service, are they simply querying the latest block that has been mined?
Or do those services have nodes in the network that collect data that has not yet been ...
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1answer
55 views
What does this error from blockchain.info mean?
It's not allowing me to see any TX's or addresses. It just says "No operations allowed after connection closed. Connection closed after inability to pick valid new connection during fail-over."
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2answers
61 views
How does blockchain.info resolve adresses?
I wonder how sites such as blockchain.info resolve the owners of public bitcoin addresses. For example, blockchain.info knows that the xkcd donation address 14FHqYSgA... belongs to xkcd.com. It is ...
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2answers
60 views
How to query blockchain.info?
I need to query blockchain.info with an address and determine how much is there, ignoring transactions that don't have 3 confirmations.
Can anyone give me a hint how to do this?
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0answers
114 views
Missing transactions with blockchain.info
All of the quick send transfers I've made on blockchain.info do not show up in my blockchain.info history. Furthermore, a person I have made a few quick send transaction with is claiming 0 ...
1
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1answer
94 views
Where does bitcoin-qt try to connect to when running for the first time? [duplicate]
My question is, where does bitcoin-qt try to connect to when running for the first time? How does it know where to connect?
Is blockchain.info some domain that has discovery services? If yes, then ...
2
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1answer
65 views
Is there any risk associated with using the same passphrase on two different wallets both hosted on blockchain.info?
Does blockchain.info use any salt with the passphrase?
I.e., is there any risk associated with using the same passphrase on two different wallets both hosted on blockchain.info?
edit: of course ...
1
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1answer
94 views
Is Google Authenticator really useful on blockchain.info?
blockchain.info hosts encrypted wallets, and all decryption is done locally, so having a Google Authenticator bound to a wallet only prevents an attacker from downloading that encrypted wallet.
Now, ...
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2answers
240 views
Blockchain.info unconfirmed transaction [duplicate]
I'm a newbie and was wondering what to do when there is an unconfirmed transaction on Blockchain.info. Can I reverse the transaction? Will my BTC reach the other side? Or are they lost?
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5answers
729 views
Dumping private keys from wallet.dat from command line (pywallet.py alternatives)
I have somewhere in my hard disks some copies of old wallets which I need to analyse.
My idea was importing them into blockchain.info, but to do that apparently you need to dump them with ...
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1answer
102 views
How does the blockchain.info shared receive work?
I understand the concept of a mixer and have succesfully used Blockchain.info wallet's shared send feature. The shared receiving address however confuses me. I assumed that one needs to click "new ...
1
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1answer
143 views
Bitcoin wallet/address balance confusion
I'm quite new to bitcoins so apologies if i'm being a noob, but I'm very confused!
My bitcoin-qt wallet balance says I have 2.0113406 BTC (which is what I expect).
Now if you check my transaction ...
2
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1answer
395 views
Please explain network propagation with unconfirmed transactions (blockchain.info)
I am wondering if someone could explain why two transactions have different network propagation values... and what does it even mean considering they are both unconfirmed transactions.
Do the ...
3
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1answer
324 views
Bought BTC from Blockchain but Received Less Than Expected
Recently, I bought £350 worth of bitcoins back when they where £37 the other day. They've taken over a day to get through to me and when I have received them I only have 7.7 (compared to the 9.1 that ...
7
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3answers
240 views
Scenario: disaster splits the Internet into dozens unconnected fragments
Major US cities restore connectivity locally for a couple of days, but the internet islands are separated (or have very poor interconnectivity). Two days later, connectivity is restored resulting in, ...
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1answer
165 views
Network Propagation over 100%
When looking at transaction details (under summary of recent transactions) on blockchain.info what is Network Propagation, and what does the value greater than 100% mean exactly?
For example Network ...
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0answers
163 views
BlockChain.info Wallet 'Desktop Sync' stuck at 'Getting Balances…'
I'm fairly confident I'm doing every thing correctly. Essentially I am trying to sync my BlockChain.info Wallet to my local Bitcoin-Qt app.
I created a bitcoin.conf file with:
server=1
...
4
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2answers
620 views
How does blockchain.info's mixing service work?
Blockchain provides a mixing service.
How does it work?
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2answers
159 views
How does blockchain.info associate a message with an address? [duplicate]
I randomly encountered this address on blockchain.info: https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW and at the top a message appears presumably describing the owner of the ...
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0answers
74 views
How to make a Bitcoin address your main one in Blockchain.info?
On the Your Wallet starting page of Blockchain.info, there is a frame with the text
This is your Bitcoin address
*bitcoin address here*
Share it with anyone and they can sent you money.
(or ...
7
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2answers
204 views
Decrypt Blockchain.info wallet export
Blockchain.info's encrypted wallet format is described as:
AES encrypting the entire JSON payload with the users password which
is then encoded as base64. No salt is used for single pass ...
4
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2answers
399 views
Why does blockchain.info show a different balance from bitcoin-qt?
I just created a wallet on blockchain.info by importing my wallet.dat from Bitcoin-QT. My Bitcoin-QT shows a balance of 3.991 BTC, while blockchain.info shows a balance of 3.016.
Where does the ...
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1answer
164 views
2FA enabled mtgox / blockchain.info wallets safe even with week passwords?
Two factor authentication (2FA) enabled mtgox / blockchain.info wallets safe even with weak passwords? whats the risk here, except loosing mobile phone?
other details,
2FA software -> Google ...
2
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1answer
200 views
My bitcoin-qt client connection status and uptime at http://blockchain.info/connected-nodes does not show reliably - why?
I've been running a Bitcoin-qt client (v0.7.2 beta) on my Mac for over 24 hours, with blockchain fully sync'ed.
I checked http://blockchain.info/connected-nodes at various times for my IP address. In ...
2
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1answer
98 views
Does a blockchain.info My Wallet have a key pool? [duplicate]
Does a wallet in blockchain.info My Wallet contain a pool of extra keys as in bitcoin-qt?
Should the wallet be backed up after every new address is created, or only after several are created?
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2answers
115 views
Blockchain.info - How to reply to a sender in a callback?
I just started using the Blockchain.info API, I've set it up to notify me when a payment is made, however all addresses in the callback are the destination address. Shouldn't I have the senders ...
4
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1answer
142 views
What are Public Notes
I see these "Public Notes" on blockchain.info. What are they? How do they work? Can I make one? Here's a random example: http://blockchain.info/address/1DkyBEKt5S2GDtv7aQw6rQepAvnsRyHoYM
Some of the ...
1
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1answer
135 views
How can I determine the number of confirmations of a transaction and its fee using the Blockchain.info DATA API?
I was wondering if I could know, by using the BlockChain.info DATA API (https://blockchain.info/api/blockchain_api) if any given transaction has confirmations and has payed the miner's fee.
2
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1answer
72 views
How does blockchaininfo find out the difficulty?
Do they have a client installed on their servers that pulls the info out of block headers? How does it do it? What's the command?
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2answers
402 views
Are transaction fees required now? Is there any way to avoid them?
I have been using blockchain.info's my wallet to perform transactions, one of the reason I liked it was because I could choose to not pay a transaction fee. But recently I noticed blockchain.info's ...
3
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1answer
390 views
Blockchain.info Receive Payments API problem
I am building a little online app to accept bitcoin payments in my website. I have a blockchain.info wallet and I am following their Receive Payments Api, which can be visited here: ...
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2answers
325 views
Does blockchain.info show all transactions?
My client is still syncing, so I've been checking my transactions on blockchain.info. It only shows two transactions although I know I should have more than that when I search my address. I'm new to ...
