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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
53
What are Channel Factories and how do they work?
bitcoin.stackexchange.com

32
What are the implications of Schnorr signatures?
bitcoin.stackexchange.com

23
What is a thin client?
bitcoin.stackexchange.com

23
How big is the UTXO database?
bitcoin.stackexchange.com

16
Is centralization in the Lightning network inevitable? Why (not)?
bitcoin.stackexchange.com

16
Why does the default miner implementation use pay-to-pubkey?
bitcoin.stackexchange.com

15
Is sha-1 used in Bitcoin?
bitcoin.stackexchange.com

12
“HTLCs don't work for micropayments”?
bitcoin.stackexchange.com

12
When to worry about 1-confirmation payments
bitcoin.stackexchange.com

11
Is it chain of headers rather than a chain of blocks?
bitcoin.stackexchange.com

11
How is the target section of a block header calculated?
bitcoin.stackexchange.com

11
How much of BIP 62 (“Dealing with malleability”) has been implemented?
bitcoin.stackexchange.com

10
If Bitcoin transactions require ~10 min to clear, how can payments get recognized within seconds?
bitcoin.stackexchange.com

10
Ubuntu Linux — How do I start bitcoind as a service to run automatically?
bitcoin.stackexchange.com

10
Are people incentivized with BTC to run nodes?
bitcoin.stackexchange.com

10
What is a hash pre-image as it is used for the breach remedy?
bitcoin.stackexchange.com

9
Why do you need the *complete* blockchain to mine bitcoins, why not just the last n blocks?
bitcoin.stackexchange.com

9
Is it possible to “unmine” particular coins?
bitcoin.stackexchange.com

9
What if some group of people start sending small transactions from wallet to wallet just to make the blockchain bigger?
bitcoin.stackexchange.com

9
What prevents similar time-warp attacks in Bitcoin as happened to Verge?
bitcoin.stackexchange.com

9
What is preventing negative balance?
bitcoin.stackexchange.com

9
Where are P2SH full redeem scripts stored?
bitcoin.stackexchange.com

8
Why doesn't bitcoin place additional constraints on competing block chain forks, other than length of chain? (e.g., time and confirmation count)
bitcoin.stackexchange.com

8
Is there a maximum size of a scriptSig/scriptPubKey?
bitcoin.stackexchange.com

8
Are Micropayment channels still subject to malleability after BIP65?
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8
Does rootstock need segregated witness to work?
bitcoin.stackexchange.com

8
Can a Bitcoin block be less than 1mb?
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7
Correct syntax for Bitcoin URI: bitcoin://1xxx-etc or bitcoin:1xxx-etc?
bitcoin.stackexchange.com

7
Bitcoind -walletnotify more than 6 confirmations?
bitcoin.stackexchange.com

7
Why does Bitcoin use separate change addresses?
bitcoin.stackexchange.com

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