Litecoin
From Wikipedia, the free encyclopedia
Jump to navigationJump to search
Litecoin
6 Full Logo S-2.png
Official Litecoin logo
Denominations
Plural Litecoins
Symbol Ł
Ticker symbol LTC
Precision 10−8
Subunits
1⁄1000 millilitecoin, mŁ
1⁄1000000 microlitecoins, photons, μŁ
Development
Original author(s) Charlie Lee
Initial release 0.1.0 / 7 October 2011; 9 years ago
Latest release 0.18.1 / 11 June 2020; 7 months ago
Code repository github.com/litecoin-project/litecoin
Development status Active
Project fork of Bitcoin
Written in C++
Operating system Windows, OS X, Linux, Android
Developer(s) Litecoin Core Development Team
Source model Open source
License MIT License
Website litecoin.org litecoin.com
Ledger
Timestamping scheme Proof-of-work
Hash function scrypt
Block reward 12.5 LTC (approximately till August 2023), halved approximately every four years
Block time 2.5 minutes
Block explorer ltc.bitaps.com explorer.litecoin.net chainz.cryptoid.info blockchair.com
Circulating supply 62,424,175 LTC (26 June 2019)
Supply limit 84,000,000 LTC
Litecoin (LTC or Ł) is a peer-to-peer cryptocurrency and open-source software project released under the MIT/X11 license. Litecoin was an early bitcoin spinoff or altcoin, starting in October 2011. In technical details, Litecoin is nearly identical to Bitcoin.
Contents
1 History
2 Differences from Bitcoin
3 See also
4 References
5 External links
History
Litecoin was released via an open-source client on GitHub on October 7, 2011 by Charlie Lee, a Google employee who later became Engineering Director at Coinbase. The Litecoin network went live on October 13, 2011.
It was a source code fork of the Bitcoin Core client, differing primarily by having a decreased block generation time (2.5 minutes), increased maximum number of coins, different hashing algorithm (scrypt, instead of SHA-256), and a slightly modified GUI.
During the month of November 2013, the aggregate value of Litecoin experienced massive growth which included a 100% leap within 24 hours.
In May 2017, Litecoin became the first of the top 5 (by market cap) cryptocurrencies to adopt Segregated Witness. Later in May of the same year, the first Lightning Network transaction was completed through Litecoin, transferring 0.00000001 LTC from Zürich to San Francisco in under one second.
Differences from Bitcoin
Litecoin is different in some ways from Bitcoin.[citation needed]
The Litecoin Network aims to process a block every 2.5 minutes, rather than Bitcoin's 10 minutes. This allows Litecoin to confirm transactions much faster than Bitcoin.
Litecoin uses scrypt in its proof-of-work algorithm, a sequential memory-hard function requiring asymptotically more memory than an algorithm which is not memory-hard.[citation needed]
Due to Litecoin's use of the scrypt algorithm, FPGA and ASIC devices made for mining Litecoin are more complicated to create and more expensive to produce than they are for Bitcoin, which uses SHA-256.
When it comes to Litecoin as a method of payment, in early days there was correlation to Bitcoin in terms of extended payment patterns. Although one might assume that payment patterns of Litecoin would converge to Bitcoin, it has been found that there is little correlation of the payment patterns of Litecoin vs Bitcoin today, and these patterns continue to diverge over time
ninjatrader bitcoin
bitcoin 10000
bitcoin frog 1070 ethereum bitcoin primedice брокеры bitcoin bitcoin видео ethereum обменники bitcoin linux ninjatrader bitcoin майнить bitcoin pro bitcoin
видеокарты ethereum nodes bitcoin bitcoin машины
panda bitcoin bitcoin center сбербанк ethereum start bitcoin
fpga ethereum monero minergate скачать tether ethereum видеокарты aliexpress bitcoin
satoshi bitcoin краны monero
игра bitcoin bitcoin instaforex monero poloniex habrahabr bitcoin bitcoin apk grayscale bitcoin криптовалюты bitcoin monero proxy lootool bitcoin tether wifi Path-dependence is the sensitivity of an outcome to the order of events that led to it. In the broadest sense, it means history has inertiaProsfreeman bitcoin bitcoin оборот bcc bitcoin bitcoin wmx ethereum mine bitcoin теория ethereum капитализация bitcoin rigs bitcoin charts токен bitcoin bitcoin grafik mastering bitcoin создать bitcoin ethereum dark
эпоха ethereum создатель ethereum invest bitcoin poker bitcoin code bitcoin шахты bitcoin bitcoin 4000 приложение tether bitcoin red donate bitcoin
faucets bitcoin цены bitcoin bitcoin торговля bitcoin перспектива
bitcoin qazanmaq If monetary debasement induced financialization, it should be logical that a return to a sound monetary standard would have the opposite effect. The tide of financialization is already on its way out, but the groundswell is just beginning to form as most people do not yet see the writing on the wall. For decades, the conventional wisdom has been to invest the vast majority of all savings, and that doesn’t change overnight. But as the world learns about bitcoin, at the same time that global central banks create trillions of dollars and anomalies like $17 trillion in negative yielding debt continue to exist, the dots are increasingly going to be connected.bitcoin инструкция обвал bitcoin bitcoin лайткоин bitcoin telegram bitcoin stellar bitcoin аккаунт ethereum настройка bitcoin etf майнер ethereum bitcoin dump ethereum coins валюты bitcoin
обмен ethereum bitcoin технология bitcoin cc
bitcoin сбор bitcoin masternode client ethereum bus bitcoin ico bitcoin bitcoin fpga bitcoin руб bitcoin инструкция monero node обмен tether view bitcoin доходность bitcoin
amazon bitcoin магазины bitcoin
plus bitcoin брокеры bitcoin bitcoin logo bitcoin genesis bitcoin prominer
валюта bitcoin ethereum chaindata blitz bitcoin bitcoin neteller конвектор bitcoin bitcoin пополнение доходность bitcoin bitcoin сервера blogspot bitcoin проблемы bitcoin reddit cryptocurrency ethereum контракты
json bitcoin moneybox bitcoin bitcoin journal
pull bitcoin
japan bitcoin bitcoin abi ethereum investment bitcoin проблемы bitcoin bitcoin вход вывод monero bitcoin blockstream
кран bitcoin gas ethereum bitcoin 2000 ethereum вывод ethereum кошельки topfan bitcoin bitcoin stock bitcoin arbitrage майнинга bitcoin network bitcoin ethereum купить iphone bitcoin bitcoin take bitcoin монеты trade cryptocurrency cryptocurrency tech bitcoin account ethereum stats
roulette bitcoin
ethereum алгоритм bitcoin future ютуб bitcoin
get bitcoin ethereum контракты ios bitcoin coingecko ethereum claymore monero bitcoin qr
sec bitcoin flypool monero сервер bitcoin кошель bitcoin buy ethereum бесплатные bitcoin bitcoin мастернода block ethereum bloomberg bitcoin биржи monero bitcoin акции bitcoin суть кошелька ethereum bitcoin status пример bitcoin
arbitrage bitcoin ethereum contracts iso bitcoin фонд ethereum bitcoin core monero usd bitcoin расшифровка bitcoin clicks rigname ethereum проекта ethereum poloniex monero ropsten ethereum polkadot stingray запуск bitcoin plus bitcoin bitcoin account bitcoin дешевеет bitcoin uk bitcoin galaxy bitcoin grafik
usa bitcoin инструкция bitcoin bitcoin neteller ethereum course bitcoin wm bitcoin начало bitcoin графики
bitcoin generator bitcoin проект торговать bitcoin bitcoin адреса bitcoin masters Greater level of security than most hot walletsbitcoin online bitcoin slots accelerator bitcoin бесплатно ethereum вывод monero
стоимость monero ethereum хешрейт golden bitcoin moto bitcoin bitcoin carding иконка bitcoin bitcoin genesis
uk bitcoin 999 bitcoin bitcoin lucky bitcoin валюты bitcoin торги moneybox bitcoin bitcoin in explorer ethereum nonce bitcoin gps tether putin bitcoin bot bitcoin ubuntu bitcoin bitcoin обменять bitcoin yandex запуск bitcoin enterprise ethereum tether io ubuntu ethereum
ethereum russia торговать bitcoin bitcoin plugin bitcoin mine legal bitcoin ethereum geth bitcoin отзывы accept bitcoin криптовалют ethereum магазины bitcoin bitcoin заработок habrahabr bitcoin обменять bitcoin oil bitcoin кран monero bitcoin настройка This argument also depends on bitcoin early adopters using bitcoins to store rather than transfer value. The daily trade on the exchanges (as of Jan 2012) indicates that smaller transactions are becoming the norm, indicating trade rather than investment. In more pragmatic terms, 'fairness' is an arbitrary concept that is improbable to be agreed upon by a large population. Establishing 'fairness' is no goal of Bitcoin, as this would be impossible.cryptocurrency dash bitcoin машины bitcoin chart bitcoin сколько bitcoin onecoin cryptocurrency rates bitcoin weekend monero core status bitcoin обменник bitcoin fpga ethereum ethereum картинки bear bitcoin facebook bitcoin bitcoin index
bitcoin transaction stats ethereum chaindata ethereum grayscale bitcoin
bitcoin форк bitcoin видеокарта
ethereum скачать
bitcoin автоматически bitcoin 4096 fenix bitcoin работа bitcoin bitcoin login ethereum кошелька кредиты bitcoin wired tether bitcoin прогноз
терминалы bitcoin se*****256k1 bitcoin bcc bitcoin ethereum кошельки эфир bitcoin zone bitcoin анализ bitcoin bitcoin войти ethereum usd
bitcoin paper
bitcoin скачать майнинга bitcoin
faucet bitcoin tether clockworkmod poker bitcoin
Let’s look at why you need all these things to create a successful cryptocurrency project.bitcoin форумы Blockchain Certification Training Coursebitcoin аккаунт cap bitcoin криптовалют ethereum bitcoin список monero pro эмиссия ethereum bitcoin инвестирование ethereum project bitcoin заработок cryptocurrency это amd bitcoin bitcoin кран ethereum график bitcoin links xbt bitcoin bitcoin scam фарминг bitcoin my ethereum bitcoin обменник captcha bitcoin bitcoin billionaire
фермы bitcoin зарегистрироваться bitcoin ethereum coins bitcoin софт bitcoin safe bitcoin price bitcoin nodes monero продать ethereum myetherwallet chain bitcoin bitcoin alpari mercado bitcoin vk bitcoin IMPRACTICAL?rinkeby ethereum Cryptocurrencies on the other hand, while each one does have scarcity, are infinite in terms of how many total cryptocurrencies can be created. In other words, there is a finite number of bitcoins, a finite number of litecoins, a finite amount of ripple, and so forth, but anyone can make a new cryptocurrency.арбитраж bitcoin dog bitcoin tether wallet bitcoin lucky приложение tether bitcoin биржа верификация tether
tracker bitcoin goldmine bitcoin tether wifi bitcoin экспресс динамика ethereum bitcoin currency monero address monero difficulty store bitcoin bitcoin up bitcoin бот bitcoin монеты вики bitcoin
token ethereum bitcoin bux bitcoin playstation шахта bitcoin
ethereum ubuntu bitcoin goldmine
bitcoin department bitcoin habr
antminer ethereum poloniex monero dance bitcoin ethereum платформа bitcoin история tether верификация хардфорк monero bitcoin ocean зарегистрировать bitcoin bitcoin mempool x2 bitcoin gadget bitcoin
bitcoin pools cryptocurrency faucet bitcoin проект bitcoin protocol bitcoin обналичить parity ethereum
value bitcoin coinmarketcap bitcoin настройка bitcoin keepkey bitcoin
bitcoin 2000 bitcoin фильм bitcoin государство However, your cryptocurrency is still vulnerable to hacking because a hacker that gains access to your computer could theoretically drain your wallet via the software application.grayscale bitcoin bitcoin forums
bitcoin nodes decred cryptocurrency air bitcoin bcc bitcoin masternode bitcoin
bitcoin node
pool bitcoin bitcoin bitcointalk today bitcoin конференция bitcoin exchange cryptocurrency sgminer monero yota tether stealer bitcoin etherium bitcoin cryptocurrency law bitcoin сервисы bitcoin free hash bitcoin заработка bitcoin крах bitcoin bitcoin cudaminer биржа ethereum обвал bitcoin dog bitcoin black bitcoin monster bitcoin bitcoin терминалы The blockchain network gives internet users the ability to create value and authenticates digital information. What new business applications will result from this?chaindata ethereum bitcoinwisdom ethereum bitcoin 2x bitcoin экспресс email bitcoin car bitcoin bitcoin best
service bitcoin bitcoin 2x добыча bitcoin bitcoin habr ethereum online bitcoin проверить mac bitcoin сложность bitcoin ethereum linux новости monero
bitcoin проблемы трейдинг bitcoin bitcoin investment usa bitcoin bitcoin jp ethereum wiki
bitcoin calc phoenix bitcoin Optionalобвал ethereum jpmorgan bitcoin js bitcoin bitcoin капитализация и bitcoin
bitcoin matrix bitcoin биткоин torrent bitcoin bitcoin 2 bitcoin neteller
bonus bitcoin
monero xmr прогнозы ethereum by bitcoin bitcoin sberbank ethereum pow keystore ethereum перспектива bitcoin asics bitcoin bitcoin land bitcoin в bitcoin портал bitcoin проверить пулы monero car bitcoin эпоха ethereum bitcoin etherium ethereum mining cryptocurrency tech takara bitcoin bitcoin redex bitcoin x2
bitcoin mmgp ethereum продам casinos bitcoin cryptocurrency capitalization ethereum serpent tether wallet
ethereum mist теханализ bitcoin bitcoin переводчик decred cryptocurrency
bitcoin кредиты форк bitcoin bitcoin sphere attack bitcoin
проект ethereum
decred ethereum stock bitcoin bitcoin loan торрент bitcoin bitcoin explorer
bitcoin payoneer trezor bitcoin bitcoin putin краны monero monero difficulty
bitcoin магазин вход bitcoin сша bitcoin ethereum serpent компьютер bitcoin ethereum asics casper ethereum технология bitcoin bitcoin магазин валюта tether mining ethereum bitcoin будущее bitcoin 10 майнер monero bitcoin fire bitcoin evolution обмен bitcoin node bitcoin node bitcoin bitcoin перевод удвоитель bitcoin ethereum форки bitcoin 2000
bitcoin school bitcoin investment spin bitcoin bitcoin блокчейн bitcoin деньги bitcoin автоматически casper ethereum надежность bitcoin bitcoin center bitcoin ставки bitcoin golden boxbit bitcoin matteo monero hosting bitcoin Blockhcain technology: new networkssberbank bitcoin rise cryptocurrency bitcointalk ethereum bitcoin биржи bitcoin ethereum decred bitcoin конверт кошель bitcoin machine bitcoin bitcoin официальный ethereum платформа bitcoin доходность bitcoin wallet альпари bitcoin
bitcoin автоматически
ютуб bitcoin shot bitcoin динамика ethereum bitcoin генераторы
ethereum mine monero криптовалюта flex bitcoin master bitcoin plasma ethereum bitcoin оплатить ethereum poloniex ethereum биткоин bitcoin комиссия monero free bitcoin hunter jax bitcoin акции ethereum ETH is the Ethereum token that is the most used and widespread. This is the token the developers actively improve and support. It is actually the second version of Ethereum and the result of a fork.Also tied to your wallet address is one or more private keys, which as the name suggests should not be shared with anyone. Keys are used to verify you own the aforementioned public key, and to sign off on transactions. Some wallets create a secure seed phrase, a set of words that will allow you to unlock your wallet if you lose your keys. Print this phrase out and keep it in a safe place.When you buy litecoin on an exchange, the price of one litecoin is usually quoted against the US dollar (USD). In other words, you are selling USD in order to buy litecoin. If the price of litecoin rises you will be able to sell for a profit, because it is now worth more USD than when you bought it. If the price falls and you decide to sell, then you would make a loss.bitcoin steam ethereum android ethereum developer bitcoin доходность ethereum обозначение торговать bitcoin депозит bitcoin bitcoin бесплатные san bitcoin bitcoin check
bitcoin сервисы
genesis bitcoin cryptocurrency gold криптовалют ethereum bitcoin onecoin bitcoin стратегия
wallet cryptocurrency ethereum com ethereum краны reddit cryptocurrency bitcoin курс
bitcoin торги forecast bitcoin заработок ethereum асик ethereum ethereum прибыльность ethereum рубль
bitcoin ru 3. Bitcoin’s additional featuresbitcoin usd bitcoin 5 bitcoin frog carding bitcoin polkadot su net bitcoin история bitcoin nicehash monero bitcoin новости ninjatrader bitcoin bitcoin office
Although early on in Bitcoin's history individuals may have been able to compete for blocks with a regular at-home computer, this is no longer the case. The reason for this is that the difficulty of mining Bitcoin changes over time. In order to ensure the smooth functioning of the blockchain and its ability to process and verify transactions, the Bitcoin network aims to have one block produced every 10 minutes or so. However, if there are one million mining rigs competing to solve the hash problem, they'll likely reach a solution faster than a scenario in which 10 mining rigs are working on the same problem. For that reason, Bitcoin is designed to evaluate and adjust the difficulty of mining every 2,016 blocks, or roughly every two weeks. When there is more computing power collectively working to mine for Bitcoin, the difficulty level of mining increases in order to keep block production at a stable rate. Less computing power means the difficulty level decreases. To get a sense of just how much computing power is involved, when Bitcoin launched in 2009 the initial difficulty level was one. As of Nov. 2019, it is more than 13 trillion.bitcoin froggy bitcoin торги dice bitcoin bitcoin check proxy bitcoin exchanges bitcoin bitcoin official bitcoin rub ethereum покупка bitcoin purse bitcoin withdrawal bitcoin книга games bitcoin
japan bitcoin займ bitcoin cryptocurrency mining time bitcoin loco bitcoin
monero обмен
bitcoin минфин ethereum news monero pro pull bitcoin polkadot ico cryptocurrency gold
mmm bitcoin app bitcoin bitcoin otc coingecko ethereum kran bitcoin bitcoin шахты bitcoin multibit bitcoin youtube bitcoin cryptocurrency erc20 ethereum freeman bitcoin avatrade bitcoin parity ethereum bitcoin компания proxy bitcoin golden bitcoin
bitcoin forum bitcoin click daemon monero
bitcoin теханализ bitcoin работа click bitcoin second bitcoin эмиссия ethereum bitfenix bitcoin
bitcoin live
bitcoin minecraft
chart bitcoin ethereum видеокарты обменник monero bitcoin зарегистрировать 2016 bitcoin хайпы bitcoin ethereum рост программа tether value, the US Dollar is the leading means of exchange and unit of account. A significant shareethereum ubuntu flash bitcoin ethereum course moneybox bitcoin майнинг bitcoin bitcoin knots loco bitcoin bitcoin виджет bitcoin formula
ethereum купить bitcoin tools dogecoin bitcoin So that’s it — that’s how you get Bitcoins. Just buy them, or sell stuff in exchange.On the crypto miner’s side of things, this is the time for celebration because the proof of work (PoW) is now complete. The PoW is the time-consuming process of solving the hash and proving to others that you’ve legitimately done so in a way that they can verify.inside bitcoin bitcoin nasdaq 4) When a node finds a proof-of-work, it broadcasts the block to all nodes.торрент bitcoin In 2012, the Cryptocurrency Legal Advocacy Group (CLAG) stressed the importance for taxpayers to determine whether taxes are due on a bitcoin-related transaction based on whether one has experienced a 'realization event': when a taxpayer has provided a service in exchange for bitcoins, a realization event has probably occurred and any gain or loss would likely be calculated using fair market values for the service provided.'monero алгоритм If you understand that these attributes make gold a great means of exchange, you’ll understand why gold was increasingly sought in the natural marketplace.bio bitcoin bitcoin котировки fasterclick bitcoin boom bitcoin proxy bitcoin
bitcoin динамика робот bitcoin locate bitcoin рубли bitcoin отзывы ethereum bitcoin основы amazon bitcoin cryptocurrency tech putin bitcoin metropolis ethereum account bitcoin by bitcoin decred cryptocurrency ставки bitcoin bitcoin alliance bitcoin dance bitcoin hardware p2pool monero bitcoin программа ethereum stratum обзор bitcoin Timeline of the crashbitcoin novosti
sberbank bitcoin виталий ethereum monero прогноз Costing €2,900 (around $3,993), the stand-alone machine offers a generous 17-inch touchscreen and has the ability to accept any fiat currency. Additionally, it can accept or dispense any digital currency, according to the company’s website.bitcoin community ethereum siacoin
coins bitcoin bitcoin prune miningpoolhub ethereum криптовалюта bitcoin
time bitcoin bitcoin сборщик bitcoin source While it is considered standard among cryptocurrency exchanges to charge so-called 'maker' and 'taker' fees, as well as occasional deposit and withdrawal fees, bitcoin users are not subject to the litany of traditional banking fees associated with fiat currencies. This means no account maintenance or minimum balance fees, no overdraft charges and no returned deposit fees, among many others.ethereum blockchain video bitcoin bitcoin mine биткоин bitcoin casinos bitcoin master bitcoin
обналичивание bitcoin Closing ThoughtsTo answer the question of whether bitcoin mining is still profitable, use a web-based profitability calculator to run a cost-benefit analysis. You can plug in different numbers and find your breakeven point (after which mining is profitable). Determine if you are willing to lay out the necessary initial capital for the hardware, and estimate the future value of bitcoins as well as the level of difficulty. When both bitcoin prices and mining difficulty decline, it usually indicates fewer miners and more ease in receiving bitcoins. When bitcoin prices and mining difficulty rise, expect the opposite—more miners competing for fewer bitcoins.What Happens to Bitcoin After All 21 Million Are Mined?iobit bitcoin bitcoin buying little bitcoin payoneer bitcoin bitcoin сбор bitcoin зарабатывать bitcoin пицца click bitcoin ico cryptocurrency bitcoin блок ethereum сайт bitcoin перспективы iphone tether создатель bitcoin bitcoin курс отдам bitcoin bitcoin 4000 bitcoin exchange bitcoin транзакции double bitcoin bitcoin скачать bitcoin блокчейн tether валюта bitcoin баланс litecoin bitcoin и bitcoin доходность ethereum free bitcoin monero новости monero hardware
bitcoin capital ethereum прогноз bitcoin background
blockchain ethereum bitcoin wallet bitcoin перспективы bitcoin расшифровка bitcoin plugin bitcoin ru flappy bitcoin
sec bitcoin tether скачать
лотерея bitcoin bitcoin net bitcoin foto exmo bitcoin
tether clockworkmod ethereum plasma bitcoin оборот bitcoin принимаем
ethereum прогноз cardano cryptocurrency
bitcoin sign
ethereum покупка donate bitcoin 6000 bitcoin bitcoin компьютер monero hardfork monero график scrypt bitcoin bitcoin математика математика bitcoin ферма bitcoin
bitcoin коды bitcoin torrent monero график bitcoin fpga bitcoin weekly bitcoin hardfork daemon bitcoin tether bootstrap
1 ethereum excel bitcoin bitcoin wordpress space bitcoin халява bitcoin
cryptocurrency dash майнить bitcoin Mining OEMs, large-scale mine operators, and mining-related service providers will accumulate the vast majority of wealth created by Bitcoin and other cryptocurrency networks during the issuance period, despite expending far fewer human resources than the software developers who volunteer contributions.There is just one property that we want you to focus on today. It is called the 'Avalanche Effect.'daemon bitcoin
alipay bitcoin
bitcoin check mining cryptocurrency security bitcoin биржа monero bitcoin antminer bitcoin dice bitcoin escrow акции bitcoin ethereum farm king bitcoin bitcoin network bitcoin видеокарты bitcoin group
займ bitcoin bitcoin tor
monero calculator bitcoin орг bitcoin часы bitcoin картинка bitcoin synchronization cryptocurrency dash bonus bitcoin ava bitcoin bitcoin деньги bitcoin обменник скачать bitcoin шифрование bitcoin bitcoin продать
what is cryptocurrencynicehash bitcoin cryptocurrency wikipedia php bitcoin bio bitcoin bitcoin бумажник карты bitcoin ethereum api робот bitcoin ethereum заработать bitcoin зебра bitcoin x2 bitcoin биткоин bitcoin получение ethereum rub wallets cryptocurrency monero simplewallet cryptocurrency top monero news monero обменять
status bitcoin перевод tether bitcoin блок ethereum gas ethereum курсы bitcoin майнер 5. Blockchain in Loyalty Reward Programsbitcoin s форк ethereum пример bitcoin
аналоги bitcoin bitcoin скачать bitcoin satoshi куплю ethereum продам bitcoin yandex bitcoin Using an offline device, generate one address/private key pair for each cold storage address you plan to use. Several tools are available, one of the most popular of which can be found at bitaddress.org.zebra bitcoin bitcoin quotes монеты bitcoin