Linked Questions

5 votes
1 answer
173 views

What does the blockchain represent?

What does the blockchain represent? Is it the current balance of each account or is it the complete ledger?
Yash's user avatar
  • 151
1 vote
2 answers
326 views

How do transaction verification and adding a block to the blockchain fit together?

I have the below questions: How is a transaction added to a block? Do miners get a reward for adding a transaction to a block? How is that block then added to the blockchain? If everyone (miners) are ...
Tanzeel Malik's user avatar
1 vote
1 answer
308 views

Why does everyone talk about the blockchain being a record of transactions if it’s just a hash?

I’m trying to get to know how cryptocurrency works and everyone treats the blockchain like an active record of every transaction, like if someone wanted to reuse the same bitcoin with the same code ...
Johnafoon's user avatar
1 vote
2 answers
593 views

What is the "certain criteria" to be a valid Bitcoin block?

I'm looking for information about Bitcoin. And I read this, it's really helpful. I already asked the question and many of you guys said it's duplicated, and link to the question "What exactly is the ...
JeongIn Kim's user avatar
0 votes
2 answers
211 views

Is it true that all the bitcoins in existence are on the blockchain (the ledge), but it just depends on who the owner (address) is?

It seems that for the 18.5 million bitcoins generated, plus even the 6.25 bitcoins that were rewards just 10 minutes ago, are all recorded in the blockchain (the ledger), but it just depends on who ...
nonopolarity's user avatar
1 vote
1 answer
542 views

Understanding blockchain 'under the hood' how a block is created

Bitcoin newbie here: I'm trying to understand the concept of the blockchain but what I don't get is what's going on behind the scenes? So let's say that there are only 10 miners in the universe and ...
adhg's user avatar
  • 123
0 votes
1 answer
213 views

How does a Bitcoin client know its transaction has been accepted by the whole network?

Say Belly, Alice and Teddy are Bitcoin clients. Belly makes a transaction to send 1 btc to Alice. He broadcasts this transaction to the P2P network. Teddy calculates a valid hashcode and add Belly's ...
Lai Yu-Hsuan's user avatar
2 votes
2 answers
255 views

First time bitcoin buyer; been reading, but still not sure how to purchase

I want to buy bitcoin for the purpose of making a transaction with a business that specified bitcoin. I have a Copay wallet on my desktop, but after doing quite a bit of reading, I'm still not sure ...
John Muller's user avatar
1 vote
1 answer
243 views

How and when do nodes stop broadcasting a transaction?

Suppose a node begins broadcasting a signed transaction. Question 1. At what stage is the signature verified? In §5 of the whitepaper, verification only appears during block acceptance after mining. ...
user516728's user avatar
3 votes
2 answers
288 views

Bitcoin in third world countries

I am with the Adelante Foundation. We are a microfinance institution serving the poorest of the poor women in Honduras. We are currently toying with the idea of transitioning into a cashless model ...
Tim's user avatar
  • 31
-1 votes
3 answers
133 views

How 2 chains co-exist together?

I am not able to understand, how 2 chains co-exist together, like these were the observations which are ambiguity for me: In one reading I have read, Only longest chain is valid and and rest chains ...
Arjun Reddy's user avatar
-2 votes
1 answer
275 views

Blockchain complete architecture [closed]

Can someone give me brief description/reference about bitcoin blockchain architecture (preferably with a architecture diagram)?
Vijesh's user avatar
  • 185
1 vote
2 answers
211 views

How can't a malicious attacker generate bitcoins on his private network?

I'm new to the cryptocurrencies world and I'm trying to understand how all this stuff works, so expect a really noob question. Suppose there's a user which generates a number of addresses and sets ...
Aurasphere's user avatar
0 votes
3 answers
148 views

How does Bitcoin prevent double-spending without penalizing miners?

In the network nodes below as shown in picture: Let's say A is trying to double spend by sending bitcoins to B,C (A->B) and (A->C) and let's say A tried to relay (A->B) transaction to honest ...
Arjun Reddy's user avatar
1 vote
1 answer
208 views

What are the parts of a Blockchain?

In the following article What Are Bitcoins? How Do Bitcoins Work?, it is mentioned that a blockchain is composed of three parts: Identifying address History Private key header Although, after taking ...
Shak Smith's user avatar

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