Hottest Questions This Month

61

votes

2

answers

9k

views

If someone wanted to pretend to be Satoshi by posting a fake signature to defraud people how could they?

ecdsa

modified Nov 19 at 15:23 Murch♦ 34.4k

4

votes

1

answer

1k

views

Why is increasing block size in the Bitcoin network considered to decrease security?

security block

modified Dec 8 at 13:22 Community♦ 1

2

votes

3

answers

657

views

What kinds of wallets are there?

wallet bitcoin-wallet-app

modified Nov 29 at 10:05 RedGrittyBrick 2,295

9

votes

1

answer

661

views

What is the tradeoff between privacy and implementation complexity of Dandelion (BIP156)

bitcoincore-development dandelion p2p bip156

answered Nov 30 at 2:02 sdaftuar 116

6

votes

2

answers

501

views

What is the estimated price of Bitcoin which will push miners to stop mining if its price dropped to uneconomical level ? [closed]

mining-profitability

answered Nov 30 at 9:13 James C. 626

6

votes

1

answer

980

views

What wallets are affected by the NPM package vulnerability?

copay bitpay weaknesses

answered Nov 27 at 11:26 Raghav Sood 6,754

4

votes

1

answer

352

views

Why was an insecure merkle tree implementation chosen?

security protocol merkle-tree

answered Nov 13 at 13:56 Raghav Sood 6,754

4

votes

3

answers

330

views

Would it be possible to create a soft-fork for reducing miner reward?

blockchain-fork mining-reward soft-fork

modified Dec 8 at 18:09 arubi 799

3

votes

3

answers

102

views

allowed DER encoding format violations for signatures in bitcoin: implications for libraries?

signature encoding

modified Dec 1 at 23:28 G. Maxwell 3,088

3

votes

1

answer

159

views

How is Public Key extracted from (message, digital signature, address)

signature message-signing bech32-address p2pkh

answered Nov 21 at 3:37 Pieter Wuille 44.9k

1

vote

4

answers

68

views

Can non mining full nodes prevent 51% attack? Does it actually strengthen the network? I am confused of its real purpose

full-node

modified Nov 29 at 22:14 James C. 626

4

votes

1

answer

295

views

Why would running a light node riskier and subject to more frauds than a full node? We don't NEED a full ledger, do we?

blockchain mining-theory nodes full-node

answered Nov 22 at 5:27 Andrew Chow♦ 30.1k

2

votes

1

answer

232

views

Why a flip a bin before hashing in this script?

blockchain php

modified Nov 27 at 0:42 Glorfindel 240

0

votes

4

answers

132

views

I have a Bitcoin ABC full node. How do I split off Bitcoin SV?

bitcoin-cash blockchain-fork bitcoinabc bitcoin-sv

answered Dec 9 at 0:28 HortonElectric 1

0

votes

1

answer

89

views

What happend with BCH SV and BCH ABC [closed]

bitcoin-cash

modified Nov 19 at 15:13 Vires In Numeris 69

4

votes

2

answers

42

views

Deanonymizing dust attack

privacy dust deanonymization-attacks

answered Nov 30 at 21:10 chytrik 5,957

1

vote

2

answers

69

views

Bitcoin core wallet transactions and synchronisation

transactions bitcoin-core wallet synchronization

answered Nov 20 at 18:26 RedGrittyBrick 2,295

0

votes

2

answers

36

views

data confidentiality on blockchain

blockchain encryption

modified Nov 28 at 9:06 Pieter Wuille 44.9k

1

vote

2

answers

55

views

Operation not valid with the current stack size

bitcoind script

modified Dec 8 at 13:43 Community♦ 1

0

votes

1

answer

164

views

Is there a way to report/shutdown a Bitcoin Criminal/Bad-Actor?

legal fraud e-wallet user-base phishing

modified Nov 26 at 1:47 rickhg12hs 103

0

votes

1

answer

137

views

Could not update Copay to 5.2.0

copay

answered Nov 27 at 11:18 chytrik 5,957

2

votes

1

answer

82

views

Why is a “first seen” rule is used to pick a side in a honest split, instead of deterministic criteria? [closed]

blockchain block

answered Nov 18 at 23:31 G. Maxwell 3,088

2

votes

2

answers

37

views

Why are block header bits necessary? (Valid difficulty is already implied by chain history)

block difficulty block-header difficulty-retargetting

answered Dec 3 at 0:57 G. Maxwell 3,088

0

votes

2

answers

56

views

How can Segwit increase transaction throughput if the same amount of data is stored in the blockchain?

segregated-witness best-chain

modified Dec 8 at 13:41 Community♦ 1

0

votes

2

answers

38

views

Can two or more transactions sent from the same address be mined in the same block in Bitcoin's blockchain?

transactions doublespend

modified Dec 4 at 11:39 chytrik 5,957

0

votes

1

answer

29

views

How does using a Turing-complete programming language compromise the security of the network? [closed]

security ethereum

modified Dec 4 at 14:31 RedGrittyBrick 2,295

1

vote

2

answers

59

views

Error while send transaction: Data push larger than necessary

bitcoind raw-transaction

answered Nov 16 at 1:48 G. Maxwell 3,088

5

votes

1

answer

44

views

Is Bitcoin Core storage compatible across different machine architecture?

bitcoin-core synchronization raspberry-pi

modified Nov 27 at 16:34 Murch♦ 34.4k

0

votes

4

answers

61

views

running bitcoind for the first time - can't interact. keep getting command not found

bitcoind

modified Nov 16 at 0:54 James Young 13

2

votes

2

answers

77

views

What is the reasoning for Grin's high inflation rate?

reward-schedule mimblewimble

answered 2 days ago Michail Kargakis 1

0

votes

2

answers

57

views

Abandoned transaction - now can't send anything

bitcoin-core transaction-fees

modified Nov 20 at 15:13 JBaczuk 3,796

0

votes

2

answers

34

views

At which stage is a transaction validated?

transactions blockchain

modified yesterday man on laptop 103

1

vote

1

answer

51

views

creating a hash that starts wtih 9 zeros

mining-theory

modified 2 days ago Community♦ 1

2

votes

1

answer

24

views

Do confidential transactions produce an UTXO

privacy confidential-transactions

modified Dec 5 at 17:54 Pieter Wuille 44.9k

0

votes

1

answer

49

views

How can Bitcoin Cash be blocks ahead of Bitcoin SV

mining-theory blockchain-fork

modified Nov 16 at 22:02 JBaczuk 3,796

1

vote

1

answer

48

views

Is there a reward or penalty for validators in proof-of-stake (PoS)?

blockchain proof-of-stake

answered Nov 17 at 15:50 Ezy 131

1

vote

1

answer

60

views

Script evaluated without error but finished with a false/empty top stack element

bitcoind script raw-transaction

answered Nov 16 at 3:25 JBaczuk 3,796

0

votes

1

answer

98

views

BCH ABC testnet Faucet?

blockchain bitcoin-cash testnet faucets

answered Nov 26 at 7:20 patric 101

1

vote

2

answers

59

views

Constructing a P2WSH address from the BIP173 spec

bech32-address p2wsh

answered Nov 16 at 17:12 Pieter Wuille 44.9k

2

votes

1

answer

59

views

Schnorr batch validation speed statistics

validation bip schnorr-signatures

modified Nov 23 at 7:17 G. Maxwell 3,088

1

vote

1

answer

75

views

i'm try to send raw transaction ,bug i got ……

bitcoinj bitcoin-wallet-app

modified 1 hour ago Oleg Kuznetsov 11

0

votes

1

answer

75

views

How would one go about selling a large amount of Bitcoin? [closed]

sell-bitcoins

modified Dec 4 at 15:29 frank 1

2

votes

1

answer

58

views

Why is 20 the maximum public keys in a multisig transaction?

bitcoin-core script multi-sig-transactions

modified Nov 25 at 6:31 JBaczuk 3,796

3

votes

2

answers

34

views

SegWit Version - is there a proposal for new versions?

segregated-witness

answered Nov 26 at 22:03 Murch♦ 34.4k

2

votes

1

answer

70

views

Using Python: create a private key of my choosing, then generate public key and address

address private-key public-key address-generation private-key-import

modified Nov 19 at 7:29 circulosmeos 376

0

votes

2

answers

33

views

Non-standard transaction scripts broadcasting

transactions script bitcoincore-development

answered Dec 4 at 16:28 Andrew Chow♦ 30.1k

1

vote

1

answer

69

views

What is a “half” in Bitcoin?

terminology reward-schedule

modified Nov 26 at 20:11 JBaczuk 3,796

0

votes

2

answers

41

views

Is encryption really needed for blockchain to work?

blockchain encryption

answered Dec 7 at 4:17 Benedikt Bünz 346

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