8
votes
1answer
45 views

Merchant tool that will dynamically adjust the # of required confirmations based on network hashrate data

Satoshi built Bitcoin to be a decentralized network. Some of the original recommendations (such as waiting for 6 confirmations) relied on statistics that related to level of decentralization. ...
5
votes
2answers
109 views

How does not practicing address reuse hurt my privacy?

If I never conduct transactions from an IP address associated with my real life identity and never conduct a transaction with someone who knows me in real life how can using the same address all the ...
6
votes
1answer
56 views

Where does the money I get from mining bitcoin come from?

Bitcoin noob here. Where does the money I get from mining bitcoin come from? Does bitcoin mining means I "steal" from other people? If yes, should I fear this probability of being robbed while I ...
6
votes
2answers
48 views

Wladimir's new GPG key

I just went to install the latest version of bitcoind and discovered that Wladimir has signed the https://bitcoin.org/bin/bitcoin-core-0.12.1/SHA256SUMS.asc file with a new GPG key: ...
4
votes
2answers
43 views

Can I receive bitcoin on any of my wallet addresses?

Can i receive bitcoin to any wallet addresses from it ? because i have more wallet addresses on coinbase it is every day change it .. How can i turning off this choice ? Thanks for help ..
5
votes
2answers
33 views

Could a Proof of Burn function be implemented into Bitcoin Core to help prove loss of private keys?

Is there a list of self reported BTC addresses with lost private keys? Of course such a list would never be conclusive as we would have to trust the people who report that the keys were lost. Could ...
2
votes
1answer
19 views

Transfer Not Sent to wallet

I request payment to this address: 1MJW5uSqvsdey6DnAsMo21WZ6bhehaVtKq but still not yet to the wallet. https://blockchain.info/address/1MJW5uSqvsdey6DnAsMo21WZ6bhehaVtKq Why this happen how to get ...
5
votes
1answer
276 views

What can be done with old (unprofitable) ASICs? [duplicate]

GPUs used for bitcoin mining have many other purposes and can generally be sold after they are no longer mining enough Bitcoin to meet variable (electricity, etc) costs. What uses do old ASICs have ...
6
votes
2answers
73 views

segregated witness adoption

What happens if segregated witness never reaches the 95% adoption threshold from miners? Will it still take effect for those transactions where the miners have adopted it?
3
votes
0answers
24 views

GekkoMiner USB Help

Hey just recieved my first Gekkoscience Usb Miner but I am having trouble setting it up. Could someone explain it too me how in baby words with download links and stuff. Make sure to leave your ...
7
votes
2answers
72 views

Coin Exchange Profits

I've seen plenty of people looking into setting up coin exchanges. I'm also interested in the development of cyptocurrencies and think it might be a good idea to get involved in the business ...
3
votes
1answer
18 views

What increases a node's banscore?

What increases a node's banscore? What factors contribute to the banscore? Does a node sending bad transactions increase its banscore? Does its using unnecessarily too much bandwidth also increase its ...
0
votes
2answers
29 views

hash versus hash pointer

I am doing coursera online course on Bitcoin and Cryptocurrency Technologies. It defines the concept of hash pointer in the first lecture as pointer to where some information is store and ...
3
votes
1answer
13 views

What kind of node connects to your full node and doesn't share blocks with you?

When running getpeerinfo I can see that a number of connected nodes return a synced_blocks of -1. Some of these have been connected for days, so: Is it correct to assume that these nodes are never ...
-1
votes
0answers
22 views

Looking for open source software similar to what I'm developing

Card reader software NFC chip card reader has input for 4 digit pin can connect to most existing merchant databases and write to them represents bitcoin as something else sends and receives ...
0
votes
1answer
22 views

Will Bitcoin remember unperformed transactions?

Let's say I transfer 0.05 BTC from 1 input to 1 output and don't pay a fee. If there are 6 blocks per hour, this means that my input has to be 369 hours (about 15 days) old so no fee is required. ...
1
vote
1answer
18 views

Colored coins implementation in Python

Is there any implementation of this Colored Coins Protocol in Python? I have found colored coins implementations in Python but, as far I as understand, they implement different protocol ...
2
votes
1answer
46 views

Stuck transactions

I tried to send some bitcoins 2 days ago and they have sat there 0 confirmations - I guess because of 'dust' from faucets included in there. I think I specified default transaction fee but obviously ...
1
vote
1answer
54 views

Does the private key have special mathematical properties?

[I read that there are private keys with lengths other than 256 bit. I only talk about 256 bit private keys here. Are other lengths even common and supported by popular wallets like Electrum?] Let's ...
5
votes
2answers
69 views

Double Spending before confirmation

What's to prevent someone from using bitcoin at a store like subway and double spending to buy the sandwich before a confirmation is made? Since subway obviously isn't going to wait for a ...
6
votes
0answers
46 views

Are there any projections about when transaction fees per block will equal block reward?

A spreadsheet with a base projection and the following editable variables (for a given block height) would be great: BTC transaction volume per block Number of transaction per block Average ...
1
vote
1answer
40 views

Is there some sort of algorithm to calculate transaction speed?

I'm wondering if there's a way that I can calculate how long it will take for a transaction of x BTC paid a y fee to get z confirmations based on current difficulty
3
votes
2answers
77 views

What criteria does Bitcoin.org use to choose which wallets to list

At this point there are hundreds of Bitcoin wallets available https://bitcoin.org/en/choose-your-wallet Clicking on a wallet reveals some areas where wallets are compared: Control Validation ...
3
votes
2answers
35 views

Can anyone delineate a phrase in the Satosh's white paper?: limiting the minimum practical transaction size

Can anyone explain what the phrase below, from the Satoshi Nakamoto white paper, means? Introduction The cost of mediation increases transaction costs, limiting the minimum practical ...
0
votes
0answers
12 views

Is it safer to use one type of hardware wallet of several?

I know that there are several brands of hardware wallets with open source firmware that are considered safe. Is it better to just one that is safe and you are most familiar with? Or would hedging by ...
0
votes
1answer
56 views

How to pratically doublespend bitcoins?

I tried to put bitcoins into an p2p exchange with bitcoin-qt. I added a to small transaction fee, so the coins are now stuck as "Unconfirmed". The offer from the exchange is overdue, so all that will ...
1
vote
1answer
19 views

When running a full node, why does the first inbound node have an unusual IP?

When running getpeerinfo, most nodes show a standard addr like this: 95.121.82.153:8333 But the first inbound connection has a differently formatted addr like this: [2a01:4f8:212:3b1f::2]:32220 ...
0
votes
2answers
28 views

Are the miners to decide if a consensus rule is accepted or not? Or are the buyers in power?

I get the impression that every time a consensus rule change is suggested then people assume that the miners/mining pools have the last word if this rule accepted or not. But isn't it up to the ...
4
votes
1answer
44 views

What is the reason for the recent drop in Bitcoin classic nodes?

Was it just a VPS based ploy to temporarily fake demand for the protocol?
3
votes
1answer
30 views

How to tell bitcoind to use more memory and CPU

I just updated my node to 0.12 and its going through its long verification process but I noticed that its not using very much memory/cpu pi 602 10.5 19.4 352220 184312 ? Ssl 21:57 ...
2
votes
1answer
46 views

How to check if my node is fully sync'ed

Using bitcoin-cli, how do I check how sync'ed my full node is?
1
vote
3answers
88 views

How can I hold Bitcoins safely in the long term?

Say I wished to hold a lot of bitcoins for many years as an investment. My worry would be about the long term safety of the different wallet mechanisms. If it's a website - what if it goes bust or ...
3
votes
1answer
44 views

I tried to use bitcoin to buy ethereum and failed, what will happen now?

I tried to use some at the shifty exchange in the ethereum app, just for research. I sent money to the provided payment adress, but I think I included a to small fee. My payment is now uncofirmed and ...
4
votes
0answers
39 views

How does the thunder network work? And how does it keep things decentralized?

How does the new thunder network work? How does it keep things decentralized?
2
votes
1answer
37 views

What does a merchant need to do to reject RBF transactions

I understand replace-by-fee transactions are no threat to merchants who require multiple confirmations. However many businesses still accept 0 confirmation transactions as a means of improving ...
5
votes
2answers
298 views

For lightning network, can I surround myself with a bunch of nodes to increase anonymity

Let's say I'm on a lightning network. Can I create a bunch of nodes, and do all my spending through those nodes? Can you hide the fact that these nodes are likely controlled by the same person? How ...
2
votes
1answer
48 views

Is there a way to know the Bitcoin Network transaction fee BEFORE actually submitting the transaction?

I am using the RPC API to submit automated transactions to my Bitcond, the user introduces the Amount and I check it against its balance before submitting the transaction. I would like to also check ...
3
votes
1answer
25 views

What's the difference between synced_blocks and synced_headers?

My P2P is a bit rusty, but as far as I understand; if we're running a full node, other nodes will connect to us to share blocks. So I can see why it would be useful to be able to see how far behind ...
1
vote
1answer
21 views

Is CheckSequenceVerify only a stop-gap measure?

The Lightning Paper v0.5.9.2 says that CSV "would permit further abilities, including allowing a stop-gap solution before a more permanent solution for resolving transaction malleability. A future ...
1
vote
1answer
23 views

How does tx fee calculation work when txin and txout are similar amounts?

This website has an example called "When Too Much is Not Enough" on its main page. I'll quote it an case this is changed in the future: Suppose you have only two outputs in your wallet, worth 1 ...
-4
votes
0answers
39 views

transfer bitcoin to my account

I wont to transfer bitcoin to my account in one day via 3rd party if possible. I would like to put money into my bitcoin wallet with out waiting a week how able to do that transaction please.
-1
votes
2answers
23 views

what about that the adress change all the time??

if the aadress has changed in my wallet could I still receive funds on the old one?? becuase the adress has changed a lot of times by its own without I have change it
1
vote
1answer
33 views

What are the chances that Nick Szabo is Satoshi? [on hold]

https://en.wikipedia.org/wiki/Nick_Szabo Does his interest in Ethereum make it more or less likely it is him? ...
1
vote
1answer
50 views

If everyone decided to switch to Bitcoin tomorrow, how much would a Bitcoin be worth?

Hypothetically, if everyone decided to trade in all their money and get Bitcoins for them tomorrow then how much would a single Bitcoin be worth? My dodgy calculation makes it out to be $3,750,000 ...
0
votes
0answers
28 views

Need help to understand where bitcoin transaction has gone

I am new with bitcoin and I need some help from experienced members. I have a server with bitcoin core where we accept some payments and use bitcoin core as mercant. The problem is that we have got ...
1
vote
1answer
31 views

Making a Server?

Can anyone give me some advice? I'm looking to learn how to make an independent market for selling and buying CS:GO skins for BTC. I'm using Django and I want all BTC to be stored and processed ...
0
votes
1answer
39 views

How can I recover my bitcoin wallet from a cellphone? [on hold]

I had the Bitcoin app on my old Samsung handset and that handset completely crashed on me with no way to repair it. It was sold for parts. I now have an iPhone and I am trying to figure out how to ...
0
votes
2answers
34 views

How many zeroes does the current target have? [duplicate]

I'm trying to get my head around the difficulty setting of Bitcoin. How can I calculate how many zeros the target string needs to start with?
1
vote
1answer
30 views

What makes an unconfirmed tx 'suspicious'? (likely to be replaced or never confirm)

When looking at Bitcoin unconfirmed transactions, I'm trying to distinguish between txs that are likely to confirm (whether that be in the first next block or in 2 hours) versus txs that are likely to ...
2
votes
3answers
63 views

How to store transactional information on the blockchain

I have an operational process that involves several sub processes. I am currently maintaining an audit trail of the entire process. For (successfully) completed processes, I want to record the ...

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