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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17 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 ...
0
votes
1answer
20 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
134 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
24 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 ...
5
votes
4answers
326 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 ...
0
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0answers
44 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?
0
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0answers
22 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
31 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
45 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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0answers
46 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
21 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
24 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
votes
2answers
19 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
votes
1answer
29 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 ...
-1
votes
1answer
97 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
votes
0answers
27 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
votes
2answers
65 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 ...
-1
votes
2answers
23 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 ...
0
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0answers
31 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
59 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 ...
1
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1answer
29 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 ...
1
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0answers
43 views

How to get bitcoin address from the pubkey_hash using bitcoin-abe or something else?

I'm using: https://github.com/bitcoin-abe/bitcoin-abe to import the blockchain into a mysql DB it is almost done after 5 days. So I started looking at the data and didn't see any addresses. I know the ...
1
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1answer
41 views

Compressed keys default for brainwallet?

I'm somewhat confused re compressed addresses... Assuming I were to make a brainwallet using "correct horse battery staple" as my passphrase gives 1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T (uncompressed ...
0
votes
1answer
52 views

Can you help me fix this address?

I just got this address: 1a8LDh3qtCdMSAgRXzMr4zB8w1EG4h1Xi, but the checksum doesn't validate. Can someone help me fix it by changing some characters that look/sound similar?
1
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1answer
86 views

Bash BTC and LTC address generator

Do you know any bash script or C simple program to generate btc and ltc addresses? I need to generate address while in recovery mode on osx or on a linux onthefly. But I cannot find such a thing on ...
2
votes
2answers
71 views

Is it possible to check if a bitcoin address “belongs to” a master public key from a deterministic wallet?

Let's say I have a Master Public Key (MPK) and have a derived some addresses from it. How can I check later if a given address was derived from my MPK?
2
votes
1answer
67 views

Advanced Bitcoin Transactions

Let's say that 7 users want to spend money from a Bitcoin multisig address. The approval of funds from this address requires the signatures of A (the leader), either B or C (two managers), and 2 of 4 ...
2
votes
1answer
22 views

On multibit how do I update my sending address? [closed]

I have bitcoin in my transactions but it does not appear in my wallet. It says updates stopped
2
votes
1answer
64 views

Why is it possible to have multiples addresses in an output of a transaction?

I am trying to load the blockchain into a MySQL database by using the data gathered from RPC calls to bitcoind. I am wondering why the "addresses" key within the "vout" array of a transaction is ...
1
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1answer
13 views

Bitcoin wiki docs, account or address?

listtransactions [account] [count=10] [from=0] Returns up to [count] most recent transactions skipping the first [from] transactions for account [account]. If [account] not provided it'll ...
1
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1answer
76 views

Is it safe to send to my own address from my wallet?

I have a wallet.dat which has so many addresses in it. Like 1, 2, 3, 4, ....., 1234324234 addresses. (Each number is address) I backed up original wallet.dat, and I want to use this light wallet.dat ...
4
votes
2answers
96 views

Decentralized democratic voting [duplicate]

Has the fundamental problem in cryptovoting, one person, one vote, in a completely decentralized or blockchain centric manner been solved? In other words, how can votes be allocated in a ...
2
votes
1answer
57 views

How to get the Input Address from vin where only a txid is given (Insight-Api)

I like to find the Input Address and Amount for a vin like this: "vin": [ { "txid": "e3f0e88ce224d342a0189c1b9d2fd488d8bda2f303dbe1e1dbbaa5f51d9f4a53", "vout": 1, ...
1
vote
1answer
23 views

How to distinguish addresses currencies apart on php [closed]

I need depending on the address to assign a value of the transaction. Both at the level of php distinguish btc ltc from ppc?
2
votes
2answers
136 views

How does the bitcoin network disallow people generating a key pair already generated? [duplicate]

Is it possible to generate a key pair that has already been generated? Wouldn't it collide with an existing value? I assume it is mathematically very unlikely, but odds higher than 0 are still ...
1
vote
1answer
67 views

Why does bitcoin use public keys as pseudonyms?

Why does bitcoin use public keys as pseudonyms? Is there any reason for that? What are the advantages of using public key as the pseudonyms? Highly appreciate if someone can give me an answer.
1
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1answer
41 views

Do receiving addresses expire on Multibit?

Okay so I have tried Resetting Blockchain and Transactions plenty of times. The only thing is I used an old receiving address that I used about 2 months ago. Do these addresses expire? Can they only ...
0
votes
2answers
152 views

Generating Ripple address

I am trying to recreate the Ripple address from Account Family wiki page and I am having some problems. I have the private generator of ...
2
votes
1answer
65 views

Genenerate address offline, but blockchain knows about my address

I generate new address in client. I hear that blockchain doesn't know about it. Blockchain will know about it when I use this address for transaction. My example: I generate this address(offline): ...
8
votes
2answers
698 views

Can two private keys generate the same (public) Bitcoin address?

I know that private key is generated randomly by wallet. Is it possible that wallet generate the same address which is used in Bitcoin? In other words: Given two private keys ka ≠ kb, is it ...
0
votes
3answers
99 views

Is it possible generate three public key( address ) by only one private key?

I hear that each address has one private key. Is it possible generate three public key address by only one private key?
0
votes
0answers
28 views

How many addresses are in blockchain? [duplicate]

I understand that client like bitcoin-qt can generate addresses indefinitely, but only true or active addresses are in blockchain. How many addresses are in blockchain? Is somewhere statistics data ...
1
vote
1answer
151 views

What is the maximum of receive addresses the default wallet can handle?

I guess there is no limit. But on tests, what is the maximum before the bitcoind start to slow down in a specific machine?
0
votes
2answers
292 views

How does cryptsy.com currency trading works?

I am using cryptsy and i am unclear how cryptsy works, At first i deposited dogecoin to newly generated address and then I made the sell offer for DOGE/LTC, now i am having some LTC but i don't see ...
0
votes
3answers
151 views

Getting sender address, python

Getting senders account Say we got txid by listtransactions: "txid" : "2ca54b92338e52bbb16562dd7a91e8670d9362bb255e21fb568acc13e732b6b7" then getrawtransaction ...
0
votes
1answer
43 views

Is it possible to retrieve bitcoin address?

I have Bitcoin daemon running in Amazon AMI, i have some balance in my bitcoin wallet, suppose i re-install os/daemon, is it possible to retrieve those balance what happened to that bitcoin ...
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votes
1answer
58 views

CoinPunk questions with private base58 encoded private keys?

I am extemely sorry if this not the right place... but thought I could maybe get some pointers? Well, basically, if you look at this: ...
2
votes
1answer
70 views

What is BIP32-style derivation?

I am reading the technical "specification" for stealth addresses, available here. The core idea is described in the following paragraph: Using Elliptic curve Diffie-Hellman (ECDH) we can generate ...
1
vote
2answers
63 views

What is the best method of getting the originating address of Bitcoin transaction?

As far as I see there are currently two methods of getting the sender's address in a Bitcoin transaction: Look up the input transaction and read the corresponding output address there (like this: ...
1
vote
1answer
118 views

Which wallet application lets you send to multiple output addresses with just 1 fee?

Which wallet applications lets you send to multiple addresses from one output? I'm looking to build a physical bitcoin kiosk faucet and was looking to see how I would avoid miner fees if i combined ...