The hash of an ECDSA key-pair's public component. Knowledge of this value allows a user to send Bitcoins to another person over the network.

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Why can I only see the balance of my wallet and not the one of each of my receiving addresses? (Multibit)

I have some troubles to understand the logic behing addresses and wallets. I use Multibit to manage my BTC. I have one wallet with 5 receiving addresses. I have transfered from an exchange website ...
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1answer
32 views

BIP32 child derivation from another child

I have a bit of conceptual problem here, Let's say I have a BIP32 implementation. If I derive two subkeys (1/2/1/2) and (1/2). is it possible to derive (1/2/1/2) from (1/2) with a subkey of (1/2)? I ...
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2answers
35 views

Sending from address to address in bitcoind

I'm programming the back-end for an ecommerce solution, Bitcoind API gives me one way of sending money to a bitcoin address: sendfrom <fromaccount> <tobitcoinaddress> <amount> If I ...
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2answers
42 views

Are there Bitcoin addresses with an odd number of transactions?

When I explore the blockchain on blockchain.info, all Bitcoin addresses seem to have an even number of transactions, e.g. 16Zugc8aq9sPkxBYXyYGqJHTizRzT5wTQg has 16 transactions. I have looked at a lot ...
4
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1answer
68 views

Correct Citation Format for a Bitcoin Transaction

When writing an academic style paper where specific bitcoin transactions are used as examples, is there a standard format to "cite" a bitcoin transaction? If not, what do you think an appropriate ...
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1answer
37 views

What roles of WIF(Wallet Import Format)?

I am reading "Mastering Bitcoin" written by Andreas and I found this explanation about "WIF(Wallet Import Format)" Key Formats Both private and public keys can be represented in a number of ...
2
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2answers
61 views

How do you send to multiple addresses by paying a one time fee? Which wallet supports this?

I have 20+ addresses I need to payout to. How can I send to all of these addresses without having to do it one at a time and paying a fee for each? Which desktop and mobile wallet supports this type ...
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1answer
71 views

How to tell whether an address is local or remote?

For example, I have a BTC address. Can I (using RPC) get information is this address my local or remote?
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1answer
43 views

Generate address with RSA private key

Can I generate a bitcoin address with my RSA private key? Explain also how and why.
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1answer
71 views

How do you delete an account in Bitcoin Core?

I am attempting to allow multiple bitcoin addresses to be created per account, but how can I delete them using the standard API? There doesn't seem to be a function for that. E.g. the acccount "Test" ...
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1answer
43 views

How to get a wallet address and set label via RPC?

I'm familiar with the basic RPC commands, but I'm having trouble retrieving/adding an address to a wallet, using purely RPC calls (i.e. bitcoind only, not bitcoin-qt). My understanding is that ...
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1answer
31 views

Do all transactions have at least one output that contains at least one bitcoin address

Do all transactions that are included in a valid block have to have at least one bitcoin address as part of their outputs (vout)? I found this to be similar: Are Bitcoin transactions permitted to ...
4
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1answer
63 views

Does Litecoin have a higher chance of address collision than Bitcoin?

I assume Litecoin has different rules of generating addresses with Bitcoin, since all Litecoin addresses are 34-characters long which is different than Bitcoin. Given that the rules for generating ...
3
votes
2answers
134 views

How safe is bitcoin with regard to a random address generation attack?

Imagine an attacker implementing something like the following pseudocode on the fastest ASIC farm money can buy: attack(blockchain, my_address) addresses = ...
0
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1answer
36 views

Is there a way to figure out when an address is created?

I'm doing some bitcoin address collections. If there are some meaningful letters in the address or if the address is created in a meaningful time to me, I will buy it. How can I know when the ...
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0answers
14 views

How to get BitPay to process each settlement using a new address?

Since receiving multiple payments using the same address isn't safe, is there a way to get BitPay to settle the balance using a new address each time? It wouldn't be feasible for the user to log in ...
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1answer
26 views

Funds and Wallets

If I load bitcoins to my wallet and the funds are there, and I go back to load more Bitcoins with a new address for my wallet are the funds from my first wallet going to merge with the newly added ...
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0answers
27 views

How do I make a new address in Bitcoin-Qt?

I have downloaded Bitcoin-Qt from bitcoin.org, but the version is experimental. I want a full version of Bitcoin. Also, I cant make a new address using the "Receive" tab; there is no detail in the ...
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1answer
79 views

Sending bitcoins to same address

I am using the BitcoinJ API to create my wallet. When I create a transaction, I provide the change address to which change should be sent. For example: let there be 1 bitcoin at address A; then I ...
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1answer
75 views

Bitcoin 101, need some knowledge [closed]

I am new to bitcoin. How do I check if my blockchain is working? I have tested some free bitcoin sites but neither of them have worked.
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3answers
149 views

ECDSA x,y coordinate validity verification doesn't seem to work

The ECDSA algorithm, secp256k1 for Bitcoin allegedly uses the equation y ^ 2 = x ^ 3 + 7 mod P to determine the validity of an alleged point upon the elliptical curve. Utilizing ...
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0answers
19 views

We are running an e-commercial site. A client used an wrong address for transaction and he is asking us to finding those coins [duplicate]

We said its impossible to find those coins since he don't have the wallet; How can it be possible somebody got an wrong address with the right checksum and he does't possess the wallet.dat file.
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2answers
1k views

I can't find my bitcoin address and my bitcoin core is out of sync by 3 years

Hey guys I am a newbie at Bitcoin just recently found out about it. I downloaded Bitcoin core; I encrypted the wallet; I created a backup folder, but it is out of sync by 3 years 4 weeks and i can't ...
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1answer
26 views

Link Receiving address with other addresses

Assumed somebody knows one of my several addresses in my wallet for receiving bitcoins, can he link this address with the other addresses I got? Or does every address stand for its own?
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1answer
60 views

How do I prevent the standard Bitcoin client from sending some of my Bitcoins to a change address?

I found somebody that imported a paper wallet with 100BTC then used 2BTC BUT the other 98BTC were sent to a change address. Why and how can I prevent this; how can I enter a custom change address?
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2answers
82 views

How do I check the checksum of a Bitcoin address?

I'm working on a Bitcoin ATM. We want to detect addresses that are entered incorrectly. There's a checksum on Bitcoin addresses - but how can we check it?
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1answer
31 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 ...
0
votes
1answer
138 views

java.lang.NoClassDefFoundError: org/spongycastle/util/encoders/Hex in Java when dealing with Bitcoin addresses

I have a private key bigInt of type bigInteger and I would like to generate the address corresponding to this private key. I implemented the following function public String get_address () { Address ...
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0answers
62 views

Generate Bitcoin addresses using a Master Key from Armory wallet

Is it possible to generate Bitcoin addresses using a Master Key from a Armory wallet with PHP? I don't want to use Electrum Master Key as Armory has a lot more features that come in handy often.
2
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1answer
59 views

Is it possible to specify a default change address?

Is it possible to enable default change address on my bitcoin-qt (aka bitcoin-core) client? I'm using a webservice that monitors my balance (based on public keys) and whenever I send a transaction my ...
2
votes
1answer
51 views

Remove address from sequence in HD wallet

Is there a way to eject an address out of the sequence of an HD wallet? Lets say an address was used for a political donation to a regime in Namibia that may get international condemnation a few ...
3
votes
4answers
350 views

HD wallets and address reuse

HD wallets create a series of addresses, and then when one address has received an input it will give you a new address that hasn't received inputs yet So in the idea of you sending yourself bitcoin ...
0
votes
1answer
47 views

How can address' hash160 be used to determine information for malicious purposes? (Ie reusing of the same address)

I've been playing around with Richard Kiss's Pycoin app which is clarifying how P2PK works. I see that the hash160 of the value: (0x04) (x-coordinate) (y-coordinate) (for an uncompressed Testnet ...
6
votes
4answers
387 views

How to find a specific bitcoin address from all the addresses?

Recently, I found a site that show all the addresses in a huge list, divided in 904625697166532776746648320380374280100293470930272690489102837043110636675 pages. The site's link is ...
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0answers
45 views

Find all webpages with bitcoin addresses posted on them

I'd like to search the web for all webpages with bitcoin addresses posted on them. Thoughts on best way to do this?
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2answers
81 views

Getting all transactions that ever occurred for a bitcoin address

I know you can use various APIs to get the balance for a given bitcoin address, but is there a way to total all the bitcoin that were ever received at a given address? A so-called "transaction ...
2
votes
0answers
35 views

How can one prove the ownership of an address? [duplicate]

Is there a way to prove the ownership of an address without spending bitcoins? I Imagine something like signing some given data with the private key - how much would that weaken the security of the ...
1
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2answers
53 views

Bitcoin purchases by country

I'm interested in getting data on bitcoin adoption by country. Is there a way of mapping bitcoin addresses to countries of origination?
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1answer
238 views

How is a NXT account address generated? Why do we need to send out a transaction in NXT to secure the address?

I'm setting up an account and noticed: The recipient account is an unknown account, meaning it has never had an incoming or outgoing transaction. To submit this request you must supply the recipient ...
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1answer
23 views

Practical interpersonal address exchange

How can addresses be exchanged practically & efficiently between two users? Visually copying & keying them is impractical & faulty.
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0answers
43 views

Deterministic Key Generation: prove that address is in a sequence of your original seed

Lets say that someone wanted to prove they owned some metadata without revealing who they were. For instance, lets say they needed to prove they had owned a contract but that contract was in an ...
0
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2answers
27 views

Convert an lower-cased address to a properly capitalized address?

Is it possible to take a lower-cased address like 1dice8emzmqkvrge4qc9buff9px3xaydp and convert it to the properly capitalized address of 1dice8EMZmqKvrGE4Qc9bUFf9PX3xaYDp ? I've looked around and ...
0
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1answer
36 views

multiple parties to sign a transaction before being broadcast (or after, but either way be associated with)

Lets say someone was writing a transaction solely to denote the existence of something, or a timestamp, or writing something in OP_RETURN Could that transaction be signed by other addresses, kind of ...
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votes
1answer
136 views

What is a bitcoin wallet?

I do not understand how addresses and wallets are related. I see that you are advised to generate an address for every transaction and, furthermore, use (multi-in multi-out) tumblers to maintain ...
2
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0answers
45 views

Key Pools and best practices

I'm wondering about what the best practices are around generating and maintaining key pools for a wallet. What is the maximum number of keys/addresses that can be created for a single wallet? ...
0
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2answers
103 views

What is bitcoin ID?

An answer on this page says that neither bitcoins nor satoshis have any identity. I then read that You may consider a bitcoin to be "less-anonymous" when an attacker could feasibly find the ...
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2answers
94 views

Donation wallet address

I read that wallet/account is not the same as bitcoin address. The address can be used only for single transaction. How do you receive donations on your address? Are wallet addresses unique for the ...
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0answers
34 views

Is there an API that provides this functionality?

Sorry I couldn't make my title more descriptive, but it might be a little long winded. What I need is the following, and preferably an API that can support the popular crypto currencies, not just ...
2
votes
1answer
78 views

NXT single address per user vs bitcoin single address per transaction

In bitcoin, the anonymity is ensured by creating a new address for each transaction and by associating this address with a wallet. As far as I understand, with NXT, you use your account (calculated by ...
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1answer
32 views

Colored coin with stealth addresses

Is it possible to use colored coins with stealth addresses? My main consideration being that coloring a unit of cryptocurrency requires being able to keep track of its exact location at all times ...