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I am planning on writing a European Bitcoin exchange for my Computer Science final year project.
The exchange will allow for a much larger variety of products such as swaps/forwards/options against other currencies (USD/BTC, EUR/BTC, GBP/BTC etc).
It will also allow for setting stop losses and (hopefully) the option to short.
Having not done any development work with Bitcoin in the past I was wondering if you could point me towards any useful documentation/ suggestions that could help me plan my implementation.
What hurdles will I need to be wary of?
I am looking forward to starting this exciting new project!
The exchange will allow for a much larger variety of products such as swaps/forwards/options against other currencies (USD/BTC, EUR/BTC, GBP/BTC etc).
It will also allow for setting stop losses and (hopefully) the option to short.
Having not done any development work with Bitcoin in the past I was wondering if you could point me towards any useful documentation/ suggestions that could help me plan my implementation.
What hurdles will I need to be wary of?
I am looking forward to starting this exciting new project!
Sorry for the delay guys! More on the way
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 05/03/2013 21:55
To: 1Pc5sZmifXH5dXazhLnofFe63tjzmxwssP
Debit: -1.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -1.0005 BTC
Transaction ID: 84675132ff60662f50bb6e08f4ec6f90b6d8021857b9967b8ccae3ebd432aa50
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 05/03/2013 21:55
To: 1Pc5sZmifXH5dXazhLnofFe63tjzmxwssP
Debit: -1.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -1.0005 BTC
Transaction ID: 84675132ff60662f50bb6e08f4ec6f90b6d8021857b9967b8ccae3ebd432aa50
Hmm... Im a bit wary. I'll send 0.1 BTC over.
1D2UMziqTk2MEkWVgh8tSmTG4knYjXnyCM
1D2UMziqTk2MEkWVgh8tSmTG4knYjXnyCM
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 21:09
To: 1D2UMziqTk2MEkWVgh8tSmTG4knYjXnyCM
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 7299b5e387244ea9d97fa0ab2ede0b513abda064198f7bfc577153dd742e06d1
Starting to double again now.
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 05/03/2013 21:07
To: 1Gkt8vhwq7oyRskdgG4K1qeRaEHDBGTiFH
Debit: -0.50 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.5005 BTC
Transaction ID: e2a2ef5a6c31d904dc22f2a2bf095da8b23fee02118b3a0abaf68d0c6031c4ae
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 05/03/2013 21:07
To: 1Gkt8vhwq7oyRskdgG4K1qeRaEHDBGTiFH
Debit: -0.50 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.5005 BTC
Transaction ID: e2a2ef5a6c31d904dc22f2a2bf095da8b23fee02118b3a0abaf68d0c6031c4ae
Highest so far
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Sending 50BTC now, we'll see how this goes...
"Any amount greater than 10BTC will not be doubled.
Amounts less than 0.05 will not be doubled as too small and treated as donation!"
Wouldn't go too well for you so don't do that!
Doubled
Status: 0/unconfirmed, broadcast through 6 nodes
Date: 05/03/2013 08:23
To: 12quTU3t3zTBYA2mXDmAM6hJwYFuKSQJZj
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 0cf4db5843fec00db5574085205825dde6594e4dbcc43f45515ea53b4d55e91b
Status: 0/unconfirmed, broadcast through 6 nodes
Date: 05/03/2013 08:23
To: 12quTU3t3zTBYA2mXDmAM6hJwYFuKSQJZj
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 0cf4db5843fec00db5574085205825dde6594e4dbcc43f45515ea53b4d55e91b
Sent 0.1 BTC.
https://blockchain.info/tx/586787ffc345fd95906d873f38e5cbb9a8d90d0573729655490698113b3c09b9
Return address: 12quTU3t3zTBYA2mXDmAM6hJwYFuKSQJZj (same)
https://blockchain.info/tx/586787ffc345fd95906d873f38e5cbb9a8d90d0573729655490698113b3c09b9
Return address: 12quTU3t3zTBYA2mXDmAM6hJwYFuKSQJZj (same)
Doubled.
Status: 0/unconfirmed, broadcast through 5 nodes
Date: 05/03/2013 00:45
To: 12quTU3t3zTBYA2mXDmAM6hJwYFuKSQJZj
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 7935a942074f728a1fb598989c1eeba8e23dcc7c61d1a3b9d783ce11d38f3f91
*poof* and your BTC is gone...
*Poof Poof* and your BTC is doubled
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 04/03/2013 23:32
To: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Debit: -0.80 BTC
Net amount: -0.80 BTC
Transaction ID: df7cf87ad3af347cc61850785058339241b9ac681b4158d0a7bea606e5fd381f
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:25
To: 18ipcztxh3rUZxbnki6fiUp7Cf1GPjmnWT
Debit: -1.00 BTC
Net amount: -1.00 BTC
Transaction ID: 05878a923f5fc7e7d0de6da482c120e7904e6be907fe1b8b10812d662db2b831
Sent 1 BTC.
http://blockchain.info/tx/19cf00fbb92853b17da6cf3232cf40b1ad6e7b2817fee3e016227a92020d2f98
Return address: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
http://blockchain.info/tx/19cf00fbb92853b17da6cf3232cf40b1ad6e7b2817fee3e016227a92020d2f98
Return address: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Doubled.
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Why are scammers so stupid. This guy could have kept playing until someone sent him 10+ BTC. Instead he just runs with 1.
a) this is a game, everyone fully understands the risks/gains involved.
b) this game will go on for days/weeks, just because I didn't double within 2minutes doesn't mean I'm not doubling!
Sent 0.5 BTC.
http://blockchain.info/tx/c6a90a58368432e73df1ee39dd0425f6a4b395d0b4c204981689244505acc8f7
Return address: 116CKdKgdYKXjQYQUeJ6p5d6kTBrtJS9Xr
http://blockchain.info/tx/c6a90a58368432e73df1ee39dd0425f6a4b395d0b4c204981689244505acc8f7
Return address: 116CKdKgdYKXjQYQUeJ6p5d6kTBrtJS9Xr
Doubled - I have sent back to the address it came from to prevent any scammers.
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:25
To: 18ipcztxh3rUZxbnki6fiUp7Cf1GPjmnWT
Debit: -1.00 BTC
Net amount: -1.00 BTC
Transaction ID: 05878a923f5fc7e7d0de6da482c120e7904e6be907fe1b8b10812d662db2b831
0.40 BTC sent, let's give it a try
Return Address: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Return Address: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Doubled.
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 04/03/2013 23:32
To: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Debit: -0.80 BTC
Net amount: -0.80 BTC
Transaction ID: df7cf87ad3af347cc61850785058339241b9ac681b4158d0a7bea606e5fd381f
You're welcome!
0.40 BTC sent, let's give it a try
Return Address: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Return Address: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Doubled.
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 04/03/2013 23:32
To: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Debit: -0.80 BTC
Net amount: -0.80 BTC
Transaction ID: df7cf87ad3af347cc61850785058339241b9ac681b4158d0a7bea606e5fd381f
I want to play a little game, it's pretty simple, this is how it works.
I propose that I will double any Bitcoins sent to my address using *magic* or whatever...
This is a game of *trust*. Obviously I can run away after the first few Bitcoins you send me, but where would the fun be in that?
Let's see who loses first!
Game Begin: 18:00 EST
The game will continue for days/weeks.
This address please: 1HNffyHktcD2iB6WJhPxKbALJdg4dwerTG
Any amount greater than 10BTC will not be doubled.
Amounts less than 0.05 will not be doubled as too small and treated as donation!
Top 3 Doubles so far:
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 04/03/2013 23:32
To: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Debit: -0.80 BTC
Net amount: -0.80 BTC
Transaction ID: df7cf87ad3af347cc61850785058339241b9ac681b4158d0a7bea606e5fd381f
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:25
To: 18ipcztxh3rUZxbnki6fiUp7Cf1GPjmnWT
Debit: -1.00 BTC
Net amount: -1.00 BTC
Transaction ID: 05878a923f5fc7e7d0de6da482c120e7904e6be907fe1b8b10812d662db2b831
I propose that I will double any Bitcoins sent to my address using *magic* or whatever...
This is a game of *trust*. Obviously I can run away after the first few Bitcoins you send me, but where would the fun be in that?
Let's see who loses first!
Game Begin: 18:00 EST
The game will continue for days/weeks.
This address please: 1HNffyHktcD2iB6WJhPxKbALJdg4dwerTG
Any amount greater than 10BTC will not be doubled.
Amounts less than 0.05 will not be doubled as too small and treated as donation!
Top 3 Doubles so far:
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:36
To: 1LFLy9cVq86jxNfU27mkK6mSR1WK2WnXRV
Debit: -2.00 BTC
Transaction fee: -0.0005 BTC
Net amount: -2.0005 BTC
Transaction ID: ee55da2aea7aec01d3145234b75f7d2124e80480f2088904622b8bab01ea76a2
Status: 0/unconfirmed, broadcast through 7 nodes
Date: 04/03/2013 23:32
To: 1ET2x3T2MXYXUYq2fKx7cgFLQjiJ2cSkbu
Debit: -0.80 BTC
Net amount: -0.80 BTC
Transaction ID: df7cf87ad3af347cc61850785058339241b9ac681b4158d0a7bea606e5fd381f
Status: 0/unconfirmed, broadcast through 8 nodes
Date: 05/03/2013 00:25
To: 18ipcztxh3rUZxbnki6fiUp7Cf1GPjmnWT
Debit: -1.00 BTC
Net amount: -1.00 BTC
Transaction ID: 05878a923f5fc7e7d0de6da482c120e7904e6be907fe1b8b10812d662db2b831
This transaction indicates that BitMofo owns address 1CyKTdcEHjWtD9FuamThfQA2cjbHvYQnzy
Then later BitMofo claims "Another doubled" sending 4 BTC to 1CyKTdcEHjWtD9FuamThfQA2cjbHvYQnzy
So the 4 BTC was just sent by BitMofo to himself.
I suspect that the lie was necessary to get the ball rolling, but it makes me wonder just how many more of the supposed doubles were "priming the pump" or sock-puppets. Still hoping for mine to get doubled, but starting to think I'll have to write off my contribution.
Unless it was a double back to the same person?Then later BitMofo claims "Another doubled" sending 4 BTC to 1CyKTdcEHjWtD9FuamThfQA2cjbHvYQnzy
So the 4 BTC was just sent by BitMofo to himself.
I suspect that the lie was necessary to get the ball rolling, but it makes me wonder just how many more of the supposed doubles were "priming the pump" or sock-puppets. Still hoping for mine to get doubled, but starting to think I'll have to write off my contribution.
- Max sends 1 BTC
- BitMofo sends 2 BTC back
- Max sends 2 BTC
- BitMofo sends 4 BTC back
Max sends 0.5 BTC from 1gdphm to BitMofo at 13plh
https://blockchain.info/tx-index/23573404/846d84f010b61c69996387d56ed1241c967d5476c5a04c469bf092d757162c06
Debit: -0.50 BTC
Then BitMofo sends 1 BTC from 1cyktdc back to Max at 1gdphm
https://blockchain.info/tx-index/23575563/4ed0269f3ed3d0131b474c7b33fde43bdf869b46c102494a7e7176cf52874c57
Doubled.
Then BitMofo sends 4 BTC to 1cyktdc claiming another double
https://blockchain.info/tx-index/23579274/d23b8ec28b10902d5882acc6e2a96418698fa571032bfa459ba417f9929a4e04
Another doubled:
If he can send from 1cyktdc when he sends 1 BTC to double Max's 0.5 BTC, then he MUST own the 1cyktdc address.
This can only mean that when he sent 4 BTC to 1cyktdc he was sending them to himself.
Like I said, it was probably necessary to get things going (much like a musician placing a few dollars in their own tip jar before they put it out). But that particular claim of doubling looks like an obvious lie. Perhaps that is the only lie, but the existence of that lie does make me wonder how many more lies there are in this game. How many more false claims of doubling? How many sock-puppets?
The double was not to myself as ianbakewell can confirm
Status: 6 confirmations, broadcast through 6 nodes
Date: 12/09/2012 13:09
To: Double or run? 13pLHUm8gPEN5H4xvTg8pqFHcr24ywzY1Z
Debit: -2.00 BTC
Transaction fee: -0.001 BTC
Net amount: -2.001 BTC
Transaction ID: 5ebbb89198062454c20bb24fefca4bfd2b1bcf142b67fa0f2689af832280717b
Fully confirmed now
Date: 12/09/2012 13:09
To: Double or run? 13pLHUm8gPEN5H4xvTg8pqFHcr24ywzY1Z
Debit: -2.00 BTC
Transaction fee: -0.001 BTC
Net amount: -2.001 BTC
Transaction ID: 5ebbb89198062454c20bb24fefca4bfd2b1bcf142b67fa0f2689af832280717b
Fully confirmed now
Here you go - you were almost daring enough to made the top
Status: 0/unconfirmed, broadcast through 10 nodes
Date: 12/09/2012 23:34
To: 114kWBPqiboAKcb4Ms65ZrVHcP1s1jFEXG
Debit: -4.00 BTC
Net amount: -4.00 BTC
Transaction ID: 062a48f0baff05c3ed09fbb0f7637f1d17619f21e7c9a366c5f2dcd8c5014839
few more doubled:
Status: 0/unconfirmed, broadcast through 16 nodes
Date: 12/09/2012 23:21
To: 1Pu8vefpRypTsk2msqhcKtt2e4qoEoaQ6o
Debit: -0.22 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2205 BTC
Transaction ID: 8e710cd8f2875689347cd60791a8e700b37d5f7a6920859c418bcaee75c21b67
Status: 0/unconfirmed, broadcast through 17 nodes
Date: 12/09/2012 23:22
To: 1Jnn6b1atKzuwBigo3dgV6ExU2TQzSmnad
Debit: -0.03 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.0305 BTC
Transaction ID: 6114be847ede9fcd09be5daff4395a0d35fc74539e638280be414c106f498f17
Status: 0/unconfirmed, broadcast through 16 nodes
Date: 12/09/2012 23:24
To: 1PZrM2dDbTjHk94Jgye51Bfkebf52MYDAD
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: aae3a644b6717e8f6fd9ee18d236fa1ce3089027e45e69ab00f0fe6af6eb0892
Status: 0/unconfirmed, broadcast through 15 nodes
Date: 12/09/2012 23:25
To: 1Borat17TLh7iyiCda8QD91sgfpwPV2p5M
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: 70e6f3f0d2030e7dd36525ca50bfc9c635edab26b53a6b822603f4808d027f8d
Status: 0/unconfirmed, broadcast through 13 nodes
Date: 12/09/2012 23:29
To: 1LPbuSomzry9pT2DKarjZiDpZ8HCx1ukq2
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 255f546e96712306e5c586c0a46cc7160281c4319beebf38b7808fec07140180
Status: 0/unconfirmed, broadcast through 18 nodes
Date: 12/09/2012 23:28
To: 1KjjNjd4WmtHtN1uaRQb3k1ZHDaSbpFJeo
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: 3a3503dccfcd1490c19f00264593de9a839bc19cd39f7944a64031114900d004
Status: 0/unconfirmed, broadcast through 16 nodes
Date: 12/09/2012 23:21
To: 1Pu8vefpRypTsk2msqhcKtt2e4qoEoaQ6o
Debit: -0.22 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2205 BTC
Transaction ID: 8e710cd8f2875689347cd60791a8e700b37d5f7a6920859c418bcaee75c21b67
Status: 0/unconfirmed, broadcast through 17 nodes
Date: 12/09/2012 23:22
To: 1Jnn6b1atKzuwBigo3dgV6ExU2TQzSmnad
Debit: -0.03 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.0305 BTC
Transaction ID: 6114be847ede9fcd09be5daff4395a0d35fc74539e638280be414c106f498f17
Status: 0/unconfirmed, broadcast through 16 nodes
Date: 12/09/2012 23:24
To: 1PZrM2dDbTjHk94Jgye51Bfkebf52MYDAD
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: aae3a644b6717e8f6fd9ee18d236fa1ce3089027e45e69ab00f0fe6af6eb0892
Status: 0/unconfirmed, broadcast through 15 nodes
Date: 12/09/2012 23:25
To: 1Borat17TLh7iyiCda8QD91sgfpwPV2p5M
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: 70e6f3f0d2030e7dd36525ca50bfc9c635edab26b53a6b822603f4808d027f8d
Status: 0/unconfirmed, broadcast through 13 nodes
Date: 12/09/2012 23:29
To: 1LPbuSomzry9pT2DKarjZiDpZ8HCx1ukq2
Debit: -0.20 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.2005 BTC
Transaction ID: 255f546e96712306e5c586c0a46cc7160281c4319beebf38b7808fec07140180
Status: 0/unconfirmed, broadcast through 18 nodes
Date: 12/09/2012 23:28
To: 1KjjNjd4WmtHtN1uaRQb3k1ZHDaSbpFJeo
Debit: -0.10 BTC
Transaction fee: -0.0005 BTC
Net amount: -0.1005 BTC
Transaction ID: 3a3503dccfcd1490c19f00264593de9a839bc19cd39f7944a64031114900d004