Source

E-mails to Mike Hearn

16 writings, oldest first

Private email (Mike Hearn)

Questions about BitCoin
12 April 2009, 22:44 (time as published; timezone not given)
Hi Mike, I'm glad to answer any questions you have. If I get time, I ought to write a FAQ to supplement the paper. There is only one global chain. The existing Visa credit card network processes about 15 million Internet purchases per day…
Private email (Mike Hearn)

Questions about BitCoin
13 April 2009, 23:00 (time as published; timezone not given)
Mike Hearn wrote: My best guess - it is the length of the global chain, and the rapid advance at the start is as the software downloads and verifies the preceding blocks in the chain as being valid. Right. I'm trying to think of more…
Private email (Mike Hearn)

Questions about BitCoin
13 April 2009, 23:11 (time as published; timezone not given)
It keeps getting extended all the time. If it stopped, an attacker would have time to catch up. Don't worry, empty blocks aren't very big. As you say, it's the order of events that matters. [Quoted text hidden]
Private email (Mike Hearn)

Questions about BitCoin
14 April 2009, 19:41 (time as published; timezone not given)
I started implementing a marketplace feature earlier that facilitates offering things for sale and taking orders, it's only half done though. A bit like e-bay but without auctions, just "buy now". Among other things, it would make it easy…
Private email (Mike Hearn)

Questions about BitCoin
18 April 2009, 18:16 (time as published; timezone not given)
I sent back 32.51 and 50.00. I badly wanted to find some way to include a comment with indirect transfers, but there just wasn't a way to do it. Bitcoin uses EC-DSA, which was essential for making the block chain compact enough to be…
Private email (Mike Hearn)

Questions about BitCoin
18 April 2009, 22:52 (time as published; timezone not given)
Got the 50. Transactions sent to a bitcoin address will always say "from: unknown". The transaction only tells who it's to. Sending by bitcoin address has a number of problems, but it's so nice having the fallback option to be able to…
Private email (Mike Hearn)

Questions about BitCoin
19 April 2009, 02:14 (time as published; timezone not given)
The list is: bitcoin-list@lists.sourceforge .net Subscribe/unsubscribe page: http://lists.sourceforge.net/m ailman/listinfo/bitcoin-list Archives: http://sourceforge.net/mailarc hive/forum.php?forum_name= bitcoin-list I'll always announce…
Private email (Mike Hearn)

Lack of chargeback support
27 April 2009, 00:11 (time as published; timezone not given)
I am not a lawyer and I can't possibly answer that. I suppose if the law applies to a bank or financial institution or other intermediary, then it would not apply since there is no bank involved, only two parties trading directly with…
Private email (Mike Hearn)

More BitCoin questions
29 December 2010, 22:42 (time as published; timezone not given)
client-mode.patch 11K
Private email (Mike Hearn)

More BitCoin questions
7 January 2011, 13:00 (time as published; timezone not given)
I reached the same conclusions about client only nodes and this is what I've been implementing. I'm nearly there ..... I have block chain download, parsing and verification of the blocks/transactions done, with creation of spend…
Private email (Mike Hearn)

More BitCoin questions
10 January 2011, 16:34 (time as published; timezone not given)
Open source. Perfect. Once your code shows how to simplify it down, other authors can follow your lead. Client is a less daunting challenge than full implementation. If it's within reach of more developers, they'll come up with more…
Private email (Mike Hearn)

More BitCoin questions
10 January 2011, 20:47 (time as published; timezone not given)
By the way, if you didn't see it already, there's a discussion on the security of secp256k1 on the forum: http://www.bitcoin.org/smf/ind ex.php?topic=2699.0 Hal (i presume this is Hal Finney) Yes, it's him. He was supportive on the…
Private email (Mike Hearn)

Open sourced my Java SPV impl
9 March 2011, 17:15 (time as published; timezone not given)
I hope you are doing well. I finally got all the lawyers happy enough to release BitCoinJ under the Google name using the Apache 2 license: It's incomplete - notably it doesn't properly handle block chain splits yet - but the rest is…
Private email (Mike Hearn)

Open sourced my Java SPV impl
9 March 2011, 19:39 (time as published; timezone not given)
See these threads: http://www.bitcoin.org/smf/ind ex.php?topic=1786.msg22119#msg 22119 http://www.bitcoin.org/smf/ind ex.php?topic=2181.msg28729#msg 28729 I see. So right now fees are tricky because you have to decide up front what the…
Private email (Mike Hearn)

Holding coins in an unspendable state for a rolling time window
20 April 2011, 11:39 (time as published; timezone not given)
If the script language is not stateless, if it has access to any outside information that changes or varies between nodes, attackers can use it to fork the chain. The only exception is if it is always false before a certain time and…
Private email (Mike Hearn)

Holding coins in an unspendable state for a rolling time window
23 April 2011, 15:40 (time as published; timezone not given)
I had a few other things on my mind (as always). One is, are you planning on rejoining the community at some point (eg for code reviews), or is your plan to permanently step back from the limelight? I've moved on to other things. It's in…

All sources