Bitcoin News / Bitcoin Stack Exchange - 7 years ago
When creating a new cryptocurrency, you must decide whether it will be a coin or a token. A coin exists on its own blockchain, while a token exists on an existing blockchain. The blockchain makes cryptocurrencies secure and decentralized.
Creating a...
Bitcoin News / Bitcoin Stack Exchange - 7 years ago
cryptography - Is there a point on the secp256k1 curve for any given X coordinate? - Bitcoin Stack Exchange
Bitcoin Stack Exchange is a question and answer site for Bitcoin crypt...
Bitcoin News / Bitcoin Stack Exchange - 7 years ago
Public / Private key encryption requires that the private key is never revealed - the owner must keep it secret.
Message and transaction signing is done with the private key and verified with the associated public key. So the private key is never re...
Bitcoin News / Bitcoin Stack Exchange - 7 years ago
What you really do is to send bitcoins (with a phone app, in this case) to a bitcoin address. So, strictly speaking, Blockchain or Coinbase, if we consider only the send/receive function, are providing you something it's already yours, meaninf that...
Bitcoin News / Bitcoin Stack Exchange - 7 years ago
I learned that the blocks and transactions are stored locally in .bitcoin/blocks/index and .bitcoin/chainstate databases, respectively.
I want to make a direct query to those databases to measure the response time.
However, I foun...
Bitcoin News / Bitcoin Stack Exchange - 8 years ago
As I said in the comment above, you're talking about a service to manage actual money. Please don't offer this service to other people until you're sure it's working properly and it doesn't have security flaws.
You should try to make your wallet wor...
Bitcoin News / Bitcoin Stack Exchange - 8 years ago
Is Ethereum essentially Bitcoin with a Turing-complete scripting language and, if I understand correctly, where the script to be executed (not its hash) is placed in the Ethereum blockchain?
That's a bit of a simplification, (Ethereum has other...
Bitcoin News / Bitcoin Stack Exchange - 8 years ago
To an extent yes. It's bad that mining pools are so big and fairly concentrated. Work is being done to try to alleviate this.
A few points limit the threat though:
The amount of harm miners can do is limited. They can't outright steal money, or cr...
Bitcoin News / Bitcoin Stack Exchange - 9 years ago
To add to Claris' answer something that confused me in the empty scriptPubKey case that was explained to me on IRC this week.
None of the explicitly defined output types thus far (P2PK, P2PKH, P2SH, P2WPKH, P2WSH, P2SH-P2WPKH, P2SH-P2WSH, P2TR) can...
Bitcoin News / Bitcoin Stack Exchange - 9 years ago
xG ( x of Generator point G) is a carefully selected 256 bit number that is divisible by the elements 0001, 0010, 0011, 0100, 0101, 0110, 0111 (1 to 7) i.e
0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798 =
550662630222773436695787...