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David A. Harding

Pemberton, NJ, USA

http://dtrt.org

Contributor, Bitcoin.org developer documentation (commits)
Email: dave@dtrt.org / IRC: harding
Bitcoin Wiki contributions
BitcoinTalk posts

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Top Questions
Top Answers
61
What are Channel Factories and how do they work?
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36
What are the implications of Schnorr signatures?
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27
How big is the UTXO database?
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26
What is a thin client?
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18
Is it chain of headers rather than a chain of blocks?
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18
How is the target section of a block header calculated?
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17
Is sha-1 used in Bitcoin?
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16
Why does the default miner implementation use pay-to-pubkey?
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16
Is centralization in the Lightning network inevitable? Why (not)?
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15
"HTLCs don't work for micropayments"?
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13
What is time warp attack and how does it work in general?
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13
What is a hash pre-image as it is used for the breach remedy?
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12
When to worry about 1-confirmation payments
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12
Ubuntu Linux -- How do I start bitcoind as a service to run automatically?
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11
How much of BIP 62 ("Dealing with malleability") has been implemented?
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11
Are people incentivized with BTC to run nodes?
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10
If Bitcoin transactions require ~10 min to clear, how can payments get recognized within seconds?
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10
Is there a maximum size of a scriptSig/scriptPubKey?
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10
Where are P2SH full redeem scripts stored?
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9
What is preventing negative balance?
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9
What if some group of people start sending small transactions from wallet to wallet just to make the blockchain bigger?
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9
What prevents similar time-warp attacks in Bitcoin as happened to Verge?
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9
Why do you need the *complete* blockchain to mine bitcoins, why not just the last n blocks?
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9
Is it possible to "unmine" particular coins?
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9
Are Micropayment channels still subject to malleability after BIP65?
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8
What's the use of not relaying non-standard transactions if anyone can still use them using P2SH?
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8
What are the units of "difficulty"?
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8
Breaking down a raw transaction:
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8
Why doesn't bitcoin place additional constraints on competing block chain forks, other than length of chain? (e.g., time and confirmation count)
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8
Can a Bitcoin block be less than 1mb?
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