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1221  Bitcoin / Bitcoin Discussion / Re: Will multisignture transaction wallets solve trust issues with exchanges? on: April 30, 2014, 04:50:26 PM
Despite many people say no, I say yes, at least partially. Many people simply don't know the great potential of bitcoin.

Sending bitcoin to an exchange will take a few confirmations. Therefore, some people have no choice but to store bitcoin on exchange if they want to be able to sell at any time.

With proper use of multisig, bitcoin could be transferred to the exchange and be available for selling immediately:

1. Create a 2-of-2 multisig address with user's key and exchange's key

2. User sends bitcoin the the multisig address. Wait for 6 confirmations. Now the bitcoin couldn't be spent without signatures from BOTH user and exchange. Since the bitcoin is not under exchange's solo possession, it is not available for selling (not even for placing an open ask order). However, the exchange has no way to run with the locked bitcoin.*

3. Some time later when the user wants to sell the bitcoin, he signs a transaction to send the locked bitcoin to an address exclusively owned by the exchange, and forwards the partially signed transaction to the exchange

4. The exchange completes the partially signed transaction and publishes it on the bitcoin network. Since the user has no way to double spend, the bitcoin could be sold on the exchange immediately.

A system like this will minimize the exposure of the bitcoin to the exchange, while still allows users to sell bitcoin at anytime they want. It also demonstrates how bitcoin is superior to fiat: the same scheme could never be possible with fiat.

*If the user worries that the exchange will suddenly vanish and make the bitcoin permanently locked in the multisig address, there are some tricks: please read https://en.bitcoin.it/wiki/Contracts#Example_1:_Providing_a_deposit
1222  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: April 30, 2014, 03:46:20 PM

a gaming company just bought 40k BTC.... there's your fresh fiat.



I say once again this "news" is typical Chinese bullshit
1223  Bitcoin / Development & Technical Discussion / Re: Can I spend a sub set of the outputs of a tx with a presigned lock_time tx? on: April 30, 2014, 03:03:17 PM
Without SIGHASH_ANYONECANPAY: no

With SIGHASH_ANYONECANPAY: yes

https://en.bitcoin.it/wiki/OP_CHECKSIG
1224  Local / 中文 (Chinese) / Re: 一点感想。 on: April 30, 2014, 07:53:01 AM
你要怎么开放?市场监控是有必要的,要不莱特币“1元事件”、“咸丰事件”会不断的涌现,事情不到你身上,你是无法体会。
当然,秧妈的“每个月那几天”确实不厚道

當然應該要監控. 請你告訴我, 如果我要在政府認可下合法運行交易所, 需要什麼資格, 可以如何申請? 如果這是做不到的, 那就不是監控, 而是禁制
1225  Economy / Speculation / Re: Bubble 2014? Superbubble 2015? No bubbles anymore? on: April 30, 2014, 04:46:44 AM


Anyway, my drawing is based on a series of minor waves within 2 larger waves. A large wave (or 'bubble') is a collection of smaller waves. A small wave is defined as one that only has a 1-3 month consolidation after it and does not enter into a downtrend on the 1-week chart, and has the next small wave within the same large wave leading to an even higher high.  A large wave is defined as one that has a 4-6+ month downtrend on the weekly chart and probably has the next bull right not leading to a higher high than its last bull run. This weekly-chart-type downtrend has only happened twice in bitcoin, 2011 and now.

In percentage-wise the current downtrend is still not comparable to the 266->65 (4x), and not to mention the 32->2 (16x). With 2013 style we should see 1100/4=275. With 2011 style we should see 1100/16=69
Since bitcoin is more mature and less volatile now, the magnitude of movements are less.  However, this is more about time than it is about distance, and about what to expect out of the next bull runs. Distance and time need to match up we that we meet the 2011 trendline. Theoretically this could actually be accomplished simply by going sideways at 450 for a year.

I think the longest +/-10% sideway in history is the $5 period from Mar-Jun 2012. Even if $450 is the new $5, I can't imagine we will stay around 400-500 for more than 6 months
1226  Economy / Speculation / Re: Bubble 2014? Superbubble 2015? No bubbles anymore? on: April 30, 2014, 03:18:02 AM


Anyway, my drawing is based on a series of minor waves within 2 larger waves. A large wave (or 'bubble') is a collection of smaller waves. A small wave is defined as one that only has a 1-3 month consolidation after it and does not enter into a downtrend on the 1-week chart, and has the next small wave within the same large wave leading to an even higher high.  A large wave is defined as one that has a 4-6+ month downtrend on the weekly chart and probably has the next bull right not leading to a higher high than its last bull run. This weekly-chart-type downtrend has only happened twice in bitcoin, 2011 and now.

In percentage-wise the current downtrend is still not comparable to the 266->65 (4x), and not to mention the 32->2 (16x). With 2013 style we should see 1100/4=275. With 2011 style we should see 1100/16=69
1227  Economy / Speculation / Re: Bubble 2014? Superbubble 2015? No bubbles anymore? on: April 29, 2014, 05:26:18 PM


There have only been two bubbles in bitcoin.  Bubbles are actually a series of multiple bull-runs (about 4). Inbetween bull-runs are short consolidations and inbetween bubbles are deep prolonged crashes. It's somewhat like EW theory. Every rise in itself is not a "bubble" - this is a misnomer.

We already had 3 bubbles:

y-axis is ln(price/exponential trend)

(see my thread for details: https://bitcointalk.org/index.php?topic=470453.0)

1228  Local / 中文 (Chinese) / Re: 一点感想。 on: April 29, 2014, 04:03:28 PM
活到今天,经历了很多。
互联网封闭,文化封闭,打压比特币,还有最近的大陆游客香港便便事件等等
只想说
开放,自由,法治,是民族繁荣的关键。
尽管这片土地上还有太多事物需要净化。

互聯網封閉: 你還是可以翻牆, 是麻煩一點, 但是可以做到

文化封閉: 學好英語, 多和外國人交流. 不要依賴翻譯文章, 很多翻譯文章都是失真的. 只要多在這裏混, 英語自然會進步

打壓比特幣: 無論央行做了什麼, 比特幣仍然正常運作, 這就是其價值所在
1229  Local / 中文 (Chinese) / Re: 比特币最大的价值在于政府的禁止 on: April 29, 2014, 01:33:02 PM
我之前有接了国外的单子 ,直接BTC支付,我感觉很方便 !这个就是比特币的价值所在!方便所在!不过有一个前提就是在中国也可以自由买卖比特币,不然我收到的比特币就不能转为RMB!

在這裏賣吧, 用支付寶就可以. 如果信不過對方, 可以分多次少量交易
1230  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: April 29, 2014, 10:19:40 AM
My break-even price is $0, so I'm gonna be around here for a while  Wink
My break even price is -($2500)
Congrats. Mine is only -(low 3 figures).
I figured $0 is end-game for everyone, so didn't bother with negative values... it would be an interesting time when you'd actually be paying people to take bitcoin from you... I'd imagine it to be highly illegal (probably banned 500 times by China by then)
Bitcoin is banned by the federal government and if you are caught owning bitcoin, you pay a fine of 2,500 per coin.


The (US) federal gov has nothing to do for me
1231  Local / 中文 (Chinese) / Re: 转:反思:如果没有去年12月5日的五部委通知,比特币今日 on: April 29, 2014, 10:18:15 AM

谁为政府想过?


你認為的政府想過你嗎? 如果沒有你為何要為你的政府想?
1232  Local / 中文 (Chinese) / Re: 4.15之后又有510,央行意欲何为? on: April 29, 2014, 08:15:56 AM
央行究竟期望比特币交易所和炒家做什么呢?


央行期望你把錢都投到股市和房地產
1233  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: April 29, 2014, 06:26:23 AM
Any thoughts on this one? News released today. This could crash the price hard. 385000BTC for $3M USD? what?

http://www.coindesk.com/us-government-sells-silk-road-users-seized-bitcoins-for-3-million/

if they sold 380,000 btc for 3m, that would be $12 each. - must be a portion, or Im missing out on some seriously 'cheap coins'

Well it's unlikely that they will sell 380,000BTC for the full $173M they are worth. Someone will get cheap coins

Bitcoins are fungible, so even if they don't get dumped on the market, other coins that would have otherwise gone to the purchasers of the seized coins will get dumped on the market. Mathematically it is irrelevant if the result is selling pressure or lack of buying pressure. There is a downward price effect on the market either way.



+1 Same goes for 200,000 Gox BTCs to be liquidated.

And US goverment has now more than  500,000 BTC ?!? 30+k from Silk Road, 130+ personal Ullbricht stash plus 385k from this new drug dealer?

This. The amount of seized BTC that has  to be auctioned and dumped on the market is so high... At least 400K (GOX+Silk+others), if not more, probably sold well under $250 for each coin, ready to be dumped on the market at any point. Truth is, even a relatively small 20K dump could totally crash BTC's value to $50/coin.

I could literally wake up one day and see BTC's value drop 50%. This will kill BTC's  long term value, seriously scary stuff

In recent postings, you have become quite intense in your FUD spreading.    

Your above post is filled with many unfounded assumptions.   Coins would have to be sold for much below market rate before there would be an incentive to dump.  I do NOT see whey the GOVT would sell BTC below market rate unless there is some kind of collusion.. .for example selling to some big bank that wants to bring down the BTC market.
I don't think that the government cares about or believes in a 'market rate' of bitcoin. The market is a manipulated game that we traders play against eachother and has meaning only to us. It is a very fragile illusion caused by hoarding and could not possibly withstand any signiifcant amount of selling. It would take a year to distribute all the those coins at market rate and doing so might cause a collapse and we're not even sure bitcoin will survive till then without some kind of technical glitch. The government is not a big bitcoin bull like you. The government does not want to speculate. What the government wants is cash, in their pocket, now. So if they can manage to sell all the coins and get a substantial amount of cash via large block trades under market rates offline, then they will do so and that would be great for them - a big success. They want a certainty, and a closed deal. I believe this is how the government operates will all kinds of seized assets, selling them at auctions for ridiculously low prices.

I agree that government officials don't care about the price of bitcoin. However, as those forfeited bitcoins are public assets, it is their DUTY to sell them at the highest price as possible, or at least a "fair price" at the time of sale. Otherwise, a corrupt official could easily indirectly sell the bitcoins to himself at $1 each.

Also, I don't see why auctions must lead to a ridiculously low price. A public, open auction should lead to a fair price.
1234  Other / Meta / Re: "INVALID BBCODE" on: April 29, 2014, 02:59:11 AM
fixed
1235  Economy / Speculation / Re: SecondMarket Bitcoin Investment Trust Observer on: April 29, 2014, 02:56:01 AM
The table becomes too long. These are the data before May 2014:

DateNAV ($)NetEstEst NetEst NewActual
AssetsHoldingBuyingInvestHolding
(M$)(XBT)(XBT)(M$)(XBT)
30-Apr-1443.6245.8103852-90-0.04103852
29-Apr-1443.7746.0103942-31-0.01
28-Apr-1443.0045.2103973-130.00
25-Apr-1445.8548.2103986180.01
24-Apr-1447.9550.410396814730.71
23-Apr-1448.0649.8102495-31-0.02
22-Apr-1448.4350.2102526980.05
21-Apr-1449.2551.01024281530.08
17-Apr-1450.1051.810227510480.53
16-Apr-1451.0152.2101227-120-0.06
15-Apr-1448.2249.41013473650.18
14-Apr-1443.6944.6100982-162-0.07
11-Apr-1438.3439.2101144-555-0.21
10-Apr-1440.3741.510169958652.39
9-Apr-1444.0842.795834-31-0.01
8-Apr-1444.4843.195865-161-0.07
5-Apr-1444.9243.6960262260.10
4-Apr-1443.8942.595800-1139-0.50
3-Apr-1443.0742.29693925321.10
2-Apr-1445.3843.394407-1762-0.81
1-Apr-1447.2245.996169620.0496169
31-Mar-1445.3044.096107-120.01
28-Mar-1449.6348.296119-57-0.02
27-Mar-1453.3151.89617638632.08
26-Mar-1457.5853.792313630.04
25-Mar-1457.4153.592250620.04
24-Mar-1455.5251.7921881280.08
21-Mar-1457.3353.39206016170.94
20-Mar-1458.9153.89044320631.23
19-Mar-1460.9654.488380-70.00
18-Mar-1460.6254.188387730.05
17-Mar-1461.9155.288314-120-0.06
14-Mar-1462.8556.18843416881.08
13-Mar-1463.2855.48674618371.17
12-Mar-1463.2554.2849091520.10
11-Mar-1461.5052.684757430.03
10-Mar-1462.4753.484714-128-0.07
7-Mar-1463.2154.1848421620.11
6-Mar-1465.2155.7846806480.43
5-Mar-1465.4855.5840325100.34
4-Mar-1467.1956.683522370.03
3-Mar-1461.8852.183485-61-0.0383485
28-Feb-1456.0347.2835461450.08
27-Feb-1457.3248.28340110110.59
26-Feb-1455.8646.4823904810.27
25-Feb-1448.3239.981909410.02
24-Feb-1456.9547.081868110.01
21-Feb-1455.1545.581857810.05
20-Feb-1458.9748.6817768870.53
19-Feb-1461.4650.180889-30.00
18-Feb-1461.8350.480892-104-0.05
14-Feb-1460.5449.4809961190.08
13-Feb-1462.7251.1808779310.59
12-Feb-1464.8252.279946300.02
11-Feb-1466.9653.97991670.01
10-Feb-1462.0049.979909700.05
7-Feb-1471.2757.37983960.01
6-Feb-1480.6164.8798336120.50
5-Feb-1483.6266.77922158184.90
4-Feb-1484.5762.573403130.02
3-Feb-1484.3262.373390310.04
30-Jan-1483.9762.0733595850.5073359
29-Jan-1484.6562.072774-13-0.01
28-Jan-1481.9160.0727876550.54
27-Jan-1481.4259.172132900.09
24-Jan-1480.0258.072042-72-0.05
23-Jan-1482.1559.6721147220.60
22-Jan-1484.2460.57139260.01
21-Jan-1486.4862.171386-31-0.01
17-Jan-1481.8758.8714175310.44
15-Jan-1485.5861.070886-100.00
14-Jan-1483.7559.770896650.06
13-Jan-1483.1359.270831-66-0.04
10-Jan-1483.3559.470897300.03
9-Jan-1483.2559.3708677350.62
8-Jan-1482.0057.870132500.04
7-Jan-1489.7363.270082690.07
6-Jan-1495.5167.270013250.04
3-Jan-1481.9157.669988760.07
2-Jan-1478.7355.3699122090.17
31-Dec-1376.1253.369703-20-0.01
30-Dec-1376.9653.969723-161-0.11
27-Dec-1375.8053.269884470.04
26-Dec-1373.8651.869837270.03
24-Dec-1367.0547.069810440.03
23-Dec-1364.6745.369766530.04
20-Dec-1368.5948.0697132350.16
19-Dec-1362.2343.4694788630.54
18-Dec-1354.4537.5686151030.06
17-Dec-1369.6647.9685123100.22
16-Dec-1376.4152.3682029020.70
13-Dec-1390.4861.167300-87-0.0867300
12-Dec-1386.9658.8673876660.58
11-Dec-1391.7161.466721860.08
10-Dec-1393.6262.666635270.02
9-Dec-1384.6856.666608330.02
6-Dec-1392.3561.7665754040.37
5-Dec-13100.1466.5661719760.98
4-Dec-13110.9672.6651951470.16
3-Dec-13105.5468.9650481140.12
2-Dec-1397.1363.36493410761.05
29-Nov-13107.8169.1638583830.4163858
27-Nov-1392.4558.96347524272.25
26-Nov-1383.0750.96104812231.02
25-Nov-1377.9446.85982510280.80
22-Nov-1371.0041.95879730442.17
21-Nov-1363.2635.455753-110-0.07
20-Nov-1352.9729.755863
19-Nov-1363.82
18-Nov-1355.2229.7535872970.16
15-Nov-1342.4422.7532905600.24
14-Nov-1341.1921.8527300.00
13-Nov-1338.240.00
12-Nov-1335.470.00
8-Nov-1331.960.00
7-Nov-1328.650.0
6-Nov-1325.450.0
5-Nov-1323.788.33470034700
4-Nov-1321.97
1-Nov-1320.46
31-Oct-1320.02
30-Oct-1320.30
29-Oct-1320.03
28-Oct-1319.62
25-Oct-1318.04
24-Oct-1319.46
23-Oct-1320.10
22-Oct-1319.10
21-Oct-1317.90
18-Oct-1315.20
17-Oct-1314.55
16-Oct-1314.86
15-Oct-1314.31
14-Oct-1314.27
11-Oct-1313.03
10-Oct-1313.14
9-Oct-1313.03
8-Oct-1312.52
7-Oct-1312.77
4-Oct-1312.63
3-Oct-1311.70
2-Oct-1311.86
1-Oct-1313.22
30-Sep-1313.26
27-Sep-1313.35
26-Sep-1312.67
25-Sep-1312.88
Seed Investment12.642.31780017800
1236  Other / Meta / "INVALID BBCODE" on: April 29, 2014, 02:50:10 AM
This is my thread: https://bitcointalk.org/index.php?topic=337486.msg3620842#msg3620842

Why it show "INVALID BBCODE"? It was normal before
1237  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: April 29, 2014, 01:46:06 AM
You guys can't find it?? It was posted on a bunch of China BTC news press

Original source:
http://news.hongzhoukan.com/14/0428/mr122254.html

Also found on:
http://www.btc38.com/btc/altgeneral/1542.html
http://www.bi126.com/Analysis/btc/2014-04-28/1086.html
http://business.chinadaily.com.cn/2014/0428/1386875.html
http://www.bit-sky.com/index.php/2013-12-16-02-19-33

Quote
Recently, reporters from Hyflux entertainment game's official website informed that the company recently completed a large international Bitcoin transaction again from the international trading market Bitcoin Bitcoin purchased twenty thousand again, coupled with previously acquired two pieces at the beginning of the bit currency, its total to forty thousand, equivalent to more than 120 million yuan.

Why is a gaming company buying 40k BTC?

If it was me, it would be to have BTC prizes, so I could lure in BTC gamblers.

It's typical Chinese scam
1238  Bitcoin / Development & Technical Discussion / Re: Standard P2SH encoding for standard transactions on: April 28, 2014, 04:24:54 PM
it wastes block space.

just Hash160 (<pubkey> OP_CHECKSIG) is enough

Right (ahem).

I assume the general principle has been thought of though?  You get all the benefits of a standard transaction, but with P2SH.

It is already a standard type, just no one uses it.
1239  Bitcoin / Development & Technical Discussion / Re: Standard P2SH encoding for standard transactions on: April 28, 2014, 03:46:51 PM
Has something like this been considered?

A standard receive scriptPubKey is of the form

To scan for transactions, you need to compute the hash of the public key and scan for that.

With P2SH, there is no reason that you can't do that too

You scan for a P2SH transaction which pays to

Hash160(OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG)

For each public key, the software would need to scan for 4 encodings, P2SH and normal and compressed/decompressed keys.

This would allow payments to P2SH to be supported much more effectively.

P2SH addresses have a big advantage that they can be verified while only looking at the sigScript.  Each element in the UTXO set just needs to be a hash160 value.

it wastes block space.

just Hash160 (<pubkey> OP_CHECKSIG) is enough
1240  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: April 28, 2014, 08:01:29 AM

Interesting. I have read exactly the same notice from 1 3rd party processor and 2 banks. It is a canned statement written by the PBOC
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