Lightcoin source code ASCII
According to the current difficulty calculation, we can dig about 1.012 Laite coins a day. This is the average calculation result in the mine pool. If there is an efficient mine pool or solo, maybe more
litecoin (abbreviated as LTC, currency symbol: 321;) It is a kind of network currency based on "peer-to-peer" technology. It is also an open source software project under MIT / X11 license. It can help users make instant payments to anyone in the world
lightcoin is inspired by bitcoin (BTC) and has the same implementation principle in technology. The creation and transfer of lightcoin is based on an open source encryption protocol and is not managed by any central organization. Lightcoin aims to improve bitcoin. Compared with bitcoin, lightcoin has three significant differences. First, the lightcoin network can process a block every 2.5 minutes (instead of 10 minutes), so it can provide faster transaction confirmation. Second, the lightcoin network is expected to proce 84 million lightcoins, four times the amount of money issued by bitcoin network. Thirdly, the scrypt encryption algorithm first proposed by Colin Percival is used in lightcoin's workload proof algorithm, which makes it easier to mine lightcoin on ordinary computer than bitcoin. Each Leyte is divided into 100000000 smaller units, defined by eight decimal places
design purpose
it is based on bitcoin protocol, but it is different from bitcoin in that even at the present stage, it can efficiently "mine" through consumer hardware. Liteoin provides you with faster transaction confirmation (2.5 minutes on average). It uses hard memory and mining workload proof algorithm based on scrypt (an encryption algorithm). It is oriented to ordinary computer and graphics processor (GPU) used by most people. The litecain network is expected to proce 84 million currency units
one of the design purposes of litecoin is to provide a mining algorithm, which can be run simultaneously on the bitcoin mining machine. With the rise of application specific integrated circuits (ASIC) designed for bitcoin mining, litecoin is also closely following the technological evolution. But before the widespread use of litecoin currency, it is unlikely that there will be an application specific integrated circuit (ASIC) specially designed for litecoin
related website community
< UL >official website of litecoin
official forum of litecoin
lightcoin China community
transactions
a peer-to-peer network similar to bitcoin handles lightcoin transactions, balances, and issues through a script workload proof scheme (when a sufficiently small hash value is found, the, A block will be created, and the lightcoin will be issued. The process of discovering the hash value and creating the block is called "mining"). The issuing rate of Leyte coins is reced by half every four years (every 840000 pieces) according to the proportional sequence, and finally the total number of LTCs is 84 million. Unlike bitcoin, the memory intensive feature of script makes it more suitable for "mining" with graphics processor (GPU). FPGA (field programmable gate array) and ASIC (application specific integrated circuit) implemented for script are more expensive than sha256 used for bitcoin
currently, lightcoin can exchange legal tender and bitcoin, most of which are through online trading platforms. Revocable transactions (such as credit card transactions) are generally not used to purchase Leyte, because Leyte transactions are irreversible, which brings the risk of refund. As of April 25, 2013, a Leyte is worth about $3.97 or 0.028 bitcoin. This makes Leyte the second largest electronic currency with a market value of about $35 million
client
litecain is a free software project released under MIT / X11 license, which allows you to run, modify and the software according to your own needs. You can also release a modified version of the software if you like
the software is released in a completely transparent form, and users can independently verify the binary version and the corresponding source code
mine pool
the lightcoin is generated by "miner's mining". Mining is done by hashing with computer graphics card. If the value of "mine burst" is calculated, the system will reward 50 lightcoins at one time. At present, the computing power of lightcoin is growing rapidly, and the miner can't find the mine through several computers. Therefore, it is necessary to join the mine pool, which collects all the computing power, It is estimated that the probability of calculating the "blasting" value is higher
at present, the well-known mine pools include BTCC (original bitcoin China) mine pool, waltc.net fish pool (f2pool), wemineltc, coinotron, silverfish, liteguardian, litecoin pool.org, etc. But at present, the highest income is f2pool. Recently, it launched lightcoin theory income + 10% of mine pool subsidy = your actual income, which has attracted the attention of many miners and the instry
< p
< p < p < p
the world's main active countries, the exchange rate of digital currency <
symbol
< P >
> P >
lightcoin
LTC
201 1
coblee
is
litecoin / org
~ $3.6 billion
is
script
data block chain
litecoin block chain, compared with its competitor bitcoin, can handle larger transaction volume. Due to the more frequent generation of data blocks, the network can support more transactions without modifying the software in the future
as a result, businesses can obtain faster transaction confirmation, and they can still wait for more transaction confirmation when they sell large value procts
2. Bitcoin can be copied, and lightcoin, Ruitai coin and vitality coin are all experimental objects
3. No, the source codes of different currencies are theoretically different
4. You can create counterfeit money without limit
5. It is possible in theory, but it may not work in practice.
the first is bitcoin,
the second is Leyte, and
the third is dogcoin
from the perspective of algorithm advanced,
the oldest is bitcoin graphics card algorithm.
then there are the CPU algorithms of Leyte coin and doggy coin
the latest popular algorithm is the X11 algorithm of the black coin, which is developing rapidly
from the perspective of currency adopted by big trading platforms
bitcoin China, okcoin, fire coin, coin deposit, bitcoin trading network, China bitcoin. Without exception, bitcoin and lettercoin are used
from the analysis of this situation, although bitcoin is old, it has a lot of platform and application support, and has advantages in the short term
the algorithms of Leyte coin and doggy coin are also relatively backward, and it is estimated that they will not last for a year
the development of new algorithmic currencies, such as black money, is a matter of time, but the application expansion is too little, and it will take a long time to really develop
but we are definitely not talking about dark currency. In fact, all currencies except bitcoin are improved on the basis of bitcoin source code, not reformed, so it is inevitable that they will be eliminated
we are looking forward to a new currency and a revolutionary currency!
you can check these open source codes in the open source community. Most of the normal source code of virtual currency is open source, and it is also open. The risk of virtual currency running away without open source code is great
lightcoin is an unsuccessful test proct of bitcoin. It is said that it is not suitable for ASIC mining. Li & Fung's ASIC miner came out and once accounted for more than 50% of the total network computing power, completely breaking the myth of lightcoin. Apart from more than bitcoin, there is not much innovation. Of course, Leyte coin is the ancestor of Shanzhai coin, and it is still the second largest cryptocurrency in the world
other well-known counterfeit coins include dog coin, Fuyuan coin, Ruibo coin, Yuanbao coin, etc.
되 &# 50632;
but at present, the situation is not objective
I don't know what the rumor means
Litecain is a free software project released under MIT / X11 license, which allows you to run, modify and the software according to your own needs. You can also release a modified version of the software if you like
the software is released in a completely transparent form, and users can independently verify the binary version and the corresponding source code
1. Concept
here we want to explain an important concept in media streaming processing time coding
time coding is an auxiliary data for video and audio streams. It is contained in video and audio files, which we can understand as timestamps<
SMPTE timecode is the sum of SMPTE time and control code. It is a continuous digital address frame, symbol and additional data in video and audio stream. It is defined in ANSI / smpte12-1986. Its purpose is to provide a video and audio address that can be processed by a computer
the data structure of the most SMPTE time code is an 80bit frame, which contains the following contents:
A, a HH:: mm:: SS:: FF (hour:: minute:: Second:: frame) format timestamp
B. eight 4-bit binary data are usually called "user bits"
C, different flag bits
D, synchronization sequence
e, validation and
this format is defined as timecode in DirectShow_ SAMPLE
time code is divided into two forms, one is linear time format LTC (vertical coding), in continuous time, each time code represents a frame. Another time code is VitC (horizontal encoding), which stores two lines of video signal in the vertical blanking interval, some places between 10 and 20
it is very easy to add LTC time code to video tape, for example, because it is a separate audio signal coding. But it can't be read when the tape drive pauses, slows down, or fast forward. In addition, in the non professional video recorder, it may lose a channel of audio signal
unlike LTC, VitC time code can be read at 0-15 times speed. It can also be read from the video capture card. But if it wants to be recorded on tape, it may need some other equipment, which is usually more expensive
SMPTE time code supports two modes at the same time, one is non lost frame mode, the other is lost frame mode. In non lost frame mode, the time code is continuously recorded. It can complete real-time playback up to 30 frames or higher
the video playback standard of NTSC system is 29.97 frames per second, which is e to the compatibility of monochrome TV system. This leads to a question: in the non frame dropping mode, 108 frames will be out of sync in one hour. That is, in one hour of real time, the time code is read only at 00:59:56:12. When you calculate the playback time of streaming media, there will be some problems. In order to solve this problem, we can implement frame skipping in tolerable circumstances. This method is realized by skipping two frames at the beginning of counting per minute, but not at 00, 20, 30, 40 and 50 minutes. Using this scheme, our network test results show that the error is less than one frame per hour, and the error is about three frames per 24 hours
in the present practical work, although the two modes are provided at the same time, the Dezhen mode is usually adopted by us<
2. Typical application of time code
controlling peripheral devices for video capture and editing is a typical application. This kind of application needs to identify each frame of video and audio frames. The method they use is to use SMPTE time code. Linear editing systems usually control three or more tape machines, and switch video between CD recorders as much as possible. The computer must execute the command accurately, so it must get the address of the designated location of the video tape at a specific time. There are many ways to use time code in application programs, mainly including the following:
A, tracking video and audio sources in the whole editing process
b, synchronizing video and audio
C. synchronize multiple devices
D. use undefined bytes in the time code, which are called userbits. This usually includes date, ASCII code or instrial information of the movie< In general, time code is generated by some capture card devices which have the ability to generate time code. For example, an RS-422 needs a time code to control the communication between the peripheral device and the host
after the generation of time code, we need to obtain the time code from the streaming video and audio, which can be accessed later. Then we deal with the time code through the following two steps:
A. establish a discontinuous index of each frame position, and correspond the time code to each frame one by one. This list is written at the end of the file after capture. The list can be a matrix array with the following structure. For the sake of simplicity, only DirectShow timecode is provided here_ A simplification of sample structure< br />
struct {
DWORD dwOffset; // The offset in the frame
char [11] SZTC// The value of time code in offset value
/ / HH: mm: SS: FF is the format of non frame dropping HH: mm: SS; FF is the format of frame dropping
} timecode
for example, we can give a time code in the video capture stream:
{0, 02:00:00:02},
{16305, 15:21:13:29} / / the time format of 16305 frames
using this table, the time code of any frame can be calculated well
B. another method is to write the time code as video and audio data. We do not recommend the use of this, so we will not introce it
the files written in the time code can be edited, compounded, synchronized, etc. That's enough for us to understand the time code. Many others are about the introction of standards. You can refer to them if you are interested.
update table name set, digital string = replace (digital string, len (digital string) - 2,2), char (cast (substring (digital string, len (digital string) - 2,2) as int) + ASCII (& 39; A')- 1) ) where cast (substring (len) - 2,2) as int) 26