Hottest Questions This Month

15

votes

1

answer

887

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How does the most recently found critical vulnerability (CVE-2018-17144) work?

answered Sep 22 at 1:23 Andrew Chow♦ 28.7k

5

votes

2

answers

700

views

What is is minimum possible number for an ECDSA private key?

ecdsa

answered Sep 21 at 17:14 G. Maxwell 1,517

2

votes

2

answers

377

views

Does running pruning node make the initial sync faster?

bitcoind pruning

modified Sep 27 at 1:24 JBaczuk 2,824

3

votes

1

answer

156

views

Solving Bitcoin core's 'ActivateBestChain failed'

bitcoin-core testnet

answered Sep 28 at 18:41 Andrew Chow♦ 28.7k

2

votes

2

answers

123

views

Any idea how to download a small part of the chain for testing purposes?

blockchain testing

answered Sep 16 at 22:24 Andrew Chow♦ 28.7k

3

votes

1

answer

43

views

Are number of transactions in Merkle Tree always “even”?

merkle-tree

answered Sep 18 at 13:28 Andrew Chow♦ 28.7k

3

votes

1

answer

75

views

Regarding CVE-2018-17144 and test cases

bitcoind doublespend

answered Sep 21 at 8:06 G. Maxwell 1,517

5

votes

2

answers

45

views

Can the coin symbol prefix in a cloned NXT blockchain start with a digit?

alternatives nxt

modified 2 days ago Petko Petkov 161

3

votes

2

answers

47

views

Checksum vs. Hash: Differences and Similarities ?

hash checksum

modified Sep 24 at 17:52 Murch♦ 33.9k

3

votes

1

answer

54

views

Ardor: defining fee & bundler question

ardor bundler

answered Sep 26 at 9:05 lyaffe 1,096

1

vote

2

answers

122

views

Bitcoin transaction fee calculator

transactions transaction-fees transaction-verification sending

answered Sep 18 at 0:03 Andrew Chow♦ 28.7k

3

votes

1

answer

114

views

Bitcoin is attacked by China miners by screwing with the network, what will Bitcoin do?

mining-theory attack majority-attack future-proof china

answered Oct 11 at 3:26 JBaczuk 2,824

2

votes

1

answer

49

views

Can someone explain me ECDSA (creating public from private key) with 8-bit numbers? [closed]

ecdsa

answered Sep 22 at 23:27 G. Maxwell 1,517

0

votes

1

answer

131

views

Cannot mine Genesis / First Block (PIVX Fork / Clone)

bitcoin-core bitcoind altcoin genesis-block cpuminer

modified Oct 10 at 20:54 ybv 1

1

vote

1

answer

45

views

Generating private key/bitcoin address based on a “password”

address-generation

answered Sep 28 at 8:36 Raghav Sood 5,739

2

votes

1

answer

42

views

Where is the pubkey for segwit inputs?

transactions segregated-witness

modified Oct 1 at 14:59 Mike D 1,120

3

votes

1

answer

53

views

Why was this transaction accepted?

testnet attack

modified Sep 27 at 14:29 Nate Eldredge 19.5k

2

votes

1

answer

63

views

A couple of questions on Schnorr sig

security bip32 validation schnorr-signatures

modified Oct 3 at 22:18 Murch♦ 33.9k

2

votes

1

answer

49

views

Proof of work: average number of tries to create a block

proof-of-work

answered Oct 4 at 5:35 Raghav Sood 5,739

2

votes

2

answers

48

views

What can you do with the private key?

security private-key buy-bitcoins wallet-security

modified Oct 6 at 22:12 RedGrittyBrick 1,650

2

votes

2

answers

98

views

How do I Derive Bech32 Address from P2WPKH Output Script?

bech32-address p2wpkh

modified Sep 24 at 21:24 KappaDev 78

1

vote

1

answer

46

views

Unusual Version Number in Blocks

bitcoin-core block-header

modified Sep 16 at 21:32 KappaDev 78

1

vote

1

answer

43

views

Signing a large file with Ardor Account

ardor

answered Sep 19 at 17:12 lyaffe 1,096

3

votes

1

answer

70

views

Why haven't a large number of cryptocurrencies copied Primecoin's mining algorithm? [closed]

altcoin proof-of-work algorithms primecoin

answered Sep 27 at 20:45 chytrik 5,338

4

votes

2

answers

33

views

Why are ardor transactions called via the api not in chronological order by timestamp?

ardor

answered Oct 11 at 17:35 Petko Petkov 161

0

votes

0

answers

87

views

Blockstream half-a-puzzle - having trouble verifying signature

bitcoin-core signature

modified Sep 28 at 2:47 Kennet Goodman 1

0

votes

2

answers

38

views

is every Block of blockchain is connect to each other? [closed]

blockchain

answered Sep 24 at 18:01 Murch♦ 33.9k

1

vote

1

answer

58

views

Premine coins from genesis block are gone after one transaction from account/wallet

altcoin litecoin altcoin-development genesis-block litecoin-qt

answered Oct 4 at 15:02 JBaczuk 2,824

1

vote

1

answer

35

views

Is PBFT a consensus algorithm?

blockchain alternatives consensus scalability

modified Sep 19 at 14:50 Dan Anderson 214

2

votes

1

answer

57

views

How to know that the account balance of a user needs to be updated after paying/sending an invoice?

lightning-network accounting c-lightning user-data

answered 2 days ago LightningK0ala 11

1

vote

1

answer

44

views

Transaction Malleability, How can I change signature?

bitcoin-core bitcoind segregated-witness bitcoincore-development

modified Oct 7 at 5:04 Andrew Chow♦ 28.7k

1

vote

2

answers

72

views

What are Forward Blocks?

blockchain-fork block-size-increase

answered Oct 9 at 14:48 Skaro 9

2

votes

2

answers

71

views

How can a third party spend BCH accidentally sent to a BTC address?

bitcoin-cash segregated-witness wallet-security cross-chain-recovery

modified Sep 26 at 8:43 RedGrittyBrick 1,650

2

votes

1

answer

33

views

Where is the New button in the Receiving Addresses windows of bitcoin core 0.17.0?

bitcoin-core

modified 14 hours ago G. Maxwell 1,517

2

votes

1

answer

53

views

How to change Nxt/Ardor wallet settings to keep the account ledger table untrimmed?

nxt ardor

modified Sep 16 at 6:26 lyaffe 1,096

1

vote

2

answers

25

views

How do exchanges and atms introduce bitcoin

exchanges bitcoin-atm

answered Oct 4 at 22:58 Abdussamad 1,300

3

votes

1

answer

40

views

Recipient calculation in verifyTransactionBytes for Ardor

ardor

answered Oct 6 at 17:21 lyaffe 1,096

1

vote

1

answer

24

views

How to get my bit coin back

blockchain

modified Oct 8 at 19:56 Stephen Stanley 1

0

votes

1

answer

48

views

Raw Transaction Fee - 256: absurdly-high-fee error [closed]

bitcoind php

answered Sep 19 at 22:14 Nikos Kostoulas 81

2

votes

1

answer

48

views

Why are some public keys prefixed with 0x00?

transactions public-key ecdsa

modified Oct 8 at 13:01 wunluwei 1

1

vote

1

answer

37

views

Bitcoin protocol allows a chain to be undone by a longer chain

bitcoin-core blockchain

answered Sep 26 at 21:54 Motoma 136

1

vote

1

answer

37

views

Bitcoin core gives wrong previous Tx

bitcoin-core bitcoind

answered Oct 11 at 19:51 Mike D 1,120

0

votes

1

answer

60

views

How to estimate/get network fees via blockchain.info API?

transaction-fees blockchain.info api bitcoin-wallet-app

modified Sep 20 at 13:23 JBaczuk 2,824

0

votes

1

answer

28

views

How much should I spend when I send BitCoin to other people using electrum wallet?

bitcoin-core electrum

modified 2 days ago HelloCW 103

1

vote

1

answer

58

views

15 day funds hold on Coinbase [closed]

coinbase.com copay

answered Sep 29 at 5:53 charlie137 46

2

votes

0

answers

58

views

Becoming Bitcoin wallet provider from scratch [closed]

blockchain wallet private-key public-key

modified Oct 2 at 13:22 Net 11

1

vote

1

answer

45

views

how to validate testnet and mainnet bitcoin address via online api or offline for Android App?

blockchain bitcoin-wallet-app android blockcypher

modified Sep 17 at 8:20 Maroon5 30

0

votes

1

answer

35

views

How can someone get my private data (such as email, name, IP …) from bitcoin transaction?

transactions bitcoin-core privacy hacking

modified Oct 8 at 20:00 Stephen Stanley 1

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