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1500 questions
9
votes
3 answers
How can I find out if an e-wallet service uses a fractional reserve system?
A comment on this answer pointed out that the total amount of bitcoins in circulation could appear to go above the limit of 21m if wallet services use a fractional reserve system. However, in that scenario you actually no longer have bitcoins -…
Highly Irregular
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9
votes
1 answer
How much out of order are the blocks stored in the blk*.dat files?
To be more exact: Given two blocks A and B, with heights A < B, but with positions in the blk file (we'll call them pA and pB) pA > pB.
What is the maximum amount of blocks that there could be stored in a blk*.dat file, between pB and pA?
For…
Fernando Tiberti
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9
votes
2 answers
bitcoin-cli get all tx hashes for watch-only address
does bitcoin-cli have any functionality to get all tx hashes for a given address (ie the txs that either send or receive funds from the given address). listtransactions sounds like it should do what i want, but when i run it like so then i get no…
mulllhausen
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9
votes
1 answer
How do I configure Bitcoin Core to connect always to a particular node?
By reading https://bitcoin.org/en/full-node I've decided that I want to run a FULL node (let's call it 'X'), to contribute to the P2P network.
So, I'll leave its ports open, or have a DMZ zone with a public IP address in it.
But this comes with…
knocte
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9
votes
1 answer
Importprivkey's "label" - is it the same as an account?
The "importprivkey" API call allows one to import a private key and save it with a label. Is the "label" in the API call synonymous with an account used in the wallet?
ThePiachu
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9
votes
1 answer
How is the size of a block calculated?
How is the blocksize currently calculated in Bitcoin Core? I'm specifically asking about how it's done for the purposes of enforcing the 1MB limit. If it's done by calculating the serialization length, what serialization format is used?
Nick ODell
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9
votes
1 answer
In Proof-of-Stake, can the same miner mine a block multiple times in a row?
In Proof-of-Work, there are no rules on who will mine the next block - the selection is random and proportional to miners' computing power.
How is the next miner selected in various Proof-of-Stake block creation algorithms? Can the same miner /…
ThePiachu
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9
votes
1 answer
What SIGHASH flags does CoinJoin use?
What SIGHASH flags are used when constructing a CoinJoin transaction?
Nick ODell
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9
votes
2 answers
How can importprivkey compromise wallet security when importing a publicly known private key?
A question was asked on reddit over here which I gave a reply: https://www.reddit.com/r/Bitcoin/comments/3khrvm/how_do_i_use_private_keys_to_receive_bitcoin/
However, luke-jr replies with:
Don't do this. You compromise your wallet's security to…
greatwolf
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9
votes
1 answer
What are the main technical hurdles to implementing UTXO commitments?
Commits of the UTXO set in the block header would enable more secure lightweight clients and caps on the number of blocks that need to be downloaded and validated in the Initial Blockchain Download, which is vitally important for Bitcoin's longevity…
Amin
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9
votes
1 answer
Is it possible to run Bitcoin on Google App Engine? / alternatives?
This question is cross-posted on bitcoin.stackexchange, stackoverflow and bitcointalks.
I'm planning to build an application on Google App Engine that will heavily make use of Bitcoin trading. I've been Googling along a little but I couldn't find…
Steven Roose
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9
votes
7 answers
What is a simple explanation for how the number of bitcoins in circulation is determined?
Often times when I explain to someone that there is a limited supply of bitcoins available that need to be divided across all the people who want to have bitcoins, the people who are computer illiterate will ask how I know that the number of…
osmosis
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9
votes
3 answers
Does mining a block force others to restart their work?
Does mining a block mean that anyone else who was working on mining a block loses their progress and must restart?
Casebash
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9
votes
1 answer
How to create the same (2 of 3) multisig adresses as electrum's multisig wallets with createmultisig?
Looking to create 2 of 3 multisig addresses with the electrum console with public keys (not the master public keys):
electrum createmultisig 2 '["1st public key wallet 1", "1st public key wallet 2", "1st public key wallet 3"]'
This will out put an…
electrum question
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9
votes
2 answers
BitInstant - How do I trade my plain cash for Bitcoin at CVS, 7-11, Walmart
On the BitInstant site, it says that I can trade in my paper money at places like CVS, 7-11 and Walmart and get bitcoins sent to me in the next 30 minutes. Can some explain how this works and what I have to do. Do I just go up to the clerk a 7-11…
Rich Westington
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