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Crypto Terms:  Letter H

What is Hashed TimeLock Contract (HTLC)?

Meaning:
Hashed TimeLock Contract (HTLC) - a feature used to develop smart contracts with the possibility to alter payment channels.
easy
2 minutes

Let's find out Hashed TimeLock Contract (HTLC) meaning, definition in crypto, what is Hashed TimeLock Contract (HTLC), and all other detailed facts.

Theoretically, the HTLC allows two users to execute time-bound transactions. Practically, the receiver of an HTLC transaction must authorize the payment within a certain time period. This has to be done by providing cryptographic proof. The funds are returned to the sender when the recipient fails to collect the payment. The HTLC is used in bidirectional and routed payment channels. It enables safe fund transfers over many channels without relying on middlemen.

HTLC differs from standard crypto transactions because of two aspects – hashlock and timelock.

  • Hashlock is a function that prevents funds from being spent until a certain piece of information is made public as cryptographic proof.
  • Timelock is a function that prevents funds from being spent until a certain time in the future.

One of the most prominent examples of HTLC applications is the Lightning Network of Bitcoin. The incorporation of HTLC into payment methods allows users to transfer funds between one another via interconnected payment channels. Besides, there's no need for trust when using this network. Network routing is a term used to describe this process.

To illustrate, imagine that Anna and Emma want to trade funds but they are not connected to the same payment channel. HTLCs would allow Anna to send her funds to Emma through, for example, John. Meanwhile, hashlock and timelock features would make it impossible for John to hijack the funds.

However, HTLCs can also be used in a variety of other contexts aside from the Lightning Network, including financial smart contracts, cross-chain atomic swapsescrow, and so on.

derivatives, such as <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-option/">options, <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-are-futures/">futures, and swaps.<\/p>\n<p>A hedge contract is similar to a forward contract. However, the two differ significantly in some regards.<\/p>\n<h2>Forward Contracts<\/h2>\n<p>A forward contract is defined as an agreement between two parties to buy and\/or sell a certain agreed-upon amount of a commodity at a predetermined price on a specific date in the future. This allows the product costs to be fixed and may be advantageous to the buyer.<\/p>\n<p><strong>Forward contracts are considered to be<\/strong> <strong>hedging tools<\/strong>. They aim to mitigate the risks for both parties involved in the contract. If one party owns a significant amount of oil and has concerns about price fluctuations, they are able to buy a forward contract to ensure that the shipment of oil arrives at a fixed price, regardless of the market value.<\/p>\n<h2>Futures Contract<\/h2>\n<p><strong>A futures contract is a financial agreement between two parties.<\/strong> It states that a commodity has to be bought or sold at a set price at a predetermined time in the future. The buyer assumes a long position, while the seller takes a short position. A transaction under a futures contract reduces the risk of financial loss by locking in the price before the transaction.<\/p>\n<p>Futures contracts are standardized. This means that they can be traded on exchange platforms. The contract determines the quantity and quality of the commodity in question. Commodities such as agriculture, crude oil, and metals are traded using futures exchanges.<\/p>","definition":"an agreement used by investors to protect their investments against market price fluctuations and possible financial loss.","status":"published","meta_title":"What is Hedge Contract? Definition & Meaning | Crypto Wiki","meta_description":"Hedge Contract meaning: Hedge Contract - an agreement used by investors to protect their investments against market price fluctuations and possible financial loss.","meta_keywords":null}" :prev-section="{"id":397,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/Cryptographic_hash_function","level":"easy","author_id":1,"created_at":"2023-06-19T06:58:59.000000Z","updated_at":"2023-12-11T04:34:10.000000Z","slug":"what-is-hash-power-hashrate","title":"What is Hash Power (Hashrate)?","section":"H","keyword":"Hash Power (Hashrate)","content":"<p><strong>Hash power<\/strong>, or hashrate, is a unit of measurement used to determine how much power a network consumes to perpetually operate. It is used when discussing the power requirements of <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-cryptocurrency/">cryptocurrency networks or individual <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-mining-rig/">mining rigs<\/strong><\/a> on said networks.<\/p>\n<p>Mineable cryptocurrencies, such as <a href=https://www.bitdegree.org/"https:////www.bitdegree.org//crypto//buy-bitcoin-btc/">Bitcoin (BTC)<\/strong><\/a>, are managed by networks of <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-miner/">miners. The miner community can consist of individuals and organizational entities that provide computational power from their crypto mining devices to process and verify transaction information, as well as create new <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-block/">blocks and new coins.<\/p>\n<p>The mining process is conducted by calculating <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-cryptographic-hash-function/">cryptographic hashes<\/strong><\/a>, which are strings of pseudorandom data. Hashes help to avoid <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-double-spending/">double-spending. The calculation process ensures that all crypto coins are verified and cannot be produced out of nowhere. This process employs a <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-proof-of-work-pow/">Proof-of-Work (PoW) consensus mechanism<\/strong><\/a>.<\/p>\n<p>The hash power of a mining rig is determined by <strong>the number of hashes calculated per second<\/strong>. The hashrate of a cryptocurrency network is calculated by adding up the hashrates of all mining rigs in operation at the given time.<\/p>\n<p>The hashrates of individual mining devices are used to determine their profitability. A <strong>good hashrate<\/strong> produced by a well-optimized mining rig improves the chances of finding the correct hash computation, thus producing a <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-mining-reward/">mining reward<\/strong><\/a>.<\/p>\n<p>The overall hash power of a network helps determine <strong>how secure the asset in question is<\/strong>. This information is relevant to parties that aim to breach the network. Hackers must overcome the total hash power of the network which is nearly impossible in networks that have <strong>significantly high hash rates<\/strong>.<\/p>\n<p>The hash power may vary between different devices. <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-central-processing-unit-cpu/">CPUs, <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-graphical-processing-unit-gpu/">GPUs, and <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-asic/">ASICs all provide different computational power and are <strong>not equally optimized for their network tasks<\/strong>.<\/p>","definition":"the amount of computer power that a network consumes to operate.","status":"published","meta_title":"What is Hash Power (Hashrate)? Definition & Meaning | Crypto Wiki","meta_description":"Hash Power (Hashrate) meaning: Hash Power (Hashrate) - the amount of computer power that a network consumes to operate.","meta_keywords":null}" :model="{"id":981,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/Smart_contract","level":"easy","author_id":1,"created_at":"2023-06-19T06:59:01.000000Z","updated_at":"2023-12-11T02:34:22.000000Z","slug":"what-is-hashed-timelock-contract-htlc","title":"What is Hashed TimeLock Contract (HTLC)?","section":"H","keyword":"Hashed TimeLock Contract (HTLC)","content":"<p>Theoretically, the <strong>HTLC allows two users to execute time-bound transactions.<\/strong> Practically, the receiver of an HTLC transaction must authorize the payment within a certain time period. This has to be done by providing cryptographic proof. The funds are returned to the sender when the recipient fails to collect the payment. The HTLC is used in <strong>bidirectional and routed payment channels.<\/strong> It enables safe fund transfers over many channels without relying on middlemen.<\/p>\n<p>HTLC differs from standard crypto transactions because of two aspects &ndash; <strong>hashlock and timelock.<\/strong><\/p>\n<ul>\n<li><strong>Hashlock<\/strong> is a function that prevents funds from being spent until a certain piece of information is made public as cryptographic proof.<\/li>\n<li><strong>Timelock<\/strong> is a function that prevents funds from being spent until a certain time in the future.<\/li>\n<\/ul>\n<p>One of the most prominent examples of HTLC applications is <strong><a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-lightning-network/">the Lightning Network of Bitcoin<\/a>. <\/strong>The incorporation of HTLC into payment methods allows users to transfer funds between one another via interconnected payment channels. Besides, there's no need for trust when using this network. <strong>Network routing<\/strong> is a term used to describe this process.<\/p>\n<p>To illustrate, imagine that Anna and Emma want to trade funds but they are not connected to the same payment channel. HTLCs would allow Anna to send her funds to Emma through, for example, John. Meanwhile, hashlock and timelock features would make it impossible for John to hijack the funds.<\/p>\n<p>However, HTLCs can also be used in a variety of other contexts aside from the Lightning Network, including <strong><a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-smart-contract/">financial smart contracts<\/a>, <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-atomic-swap/">cross-chain atomic swaps<\/a>,&nbsp;<a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-escrow/">escrow, and so on.<\/p>","definition":"a feature used to develop smart contracts with the possibility to alter payment channels.","status":"published","meta_title":"What is Hashed TimeLock Contract (HTLC)? 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He&rsquo;s a passionate analyst who is concerned with data-driven and fact-based content, as well as that which speaks to both Web3 natives and industry newcomers.<\/p>\n<p>Aaron is the go-to person for everything and anything related to digital currencies. With a huge passion for blockchain &amp; Web3 education, Aaron strives to transform the space as we know it, and make it more approachable to complete beginners.<\/p>\n<p>Aaron has been quoted by multiple established outlets, and is a published author himself. Even during his free time, he enjoys researching the market trends, and looking for the next supernova.<\/p>","user":{"id":1,"first_name":"Aaron","last_name":"S.","email":"aaron@bitdegree.org","email_sanitized":"aaron@bitdegree.org","email_verified_at":"2023-12-01T09:40:20.000000Z","must_verify_email":false,"is_registered_with_wallet":false,"status":"active","country":"LT","last_connected_ip":"88.119.132.125","image_id":2641,"referral_token":"05TMu2NysXOCn525","referred_by":null,"created_at":"2023-05-03T14:30:55.000000Z","updated_at":"2024-01-09T15:22:21.000000Z","full_name":"Aaron S."}}}" :chapter-list="[{"id":1,"title":"Blockchain","slug":"blockchain","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-blockchain.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/blockchain-101.jpg","rating":100,"sections":[{"chapter_id":1,"order":1,"slug":"what-is-blockchain","title":"What is the Blockchain?","status":"published","modified_content":null},{"chapter_id":1,"order":2,"slug":"decentralized-blockchain","title":"Anonymous & Decentralized Blockchains: The Cornerstone of Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":3,"slug":"blockchain-transaction","title":"What is a Blockchain Transaction in Crypto?","status":"published","modified_content":null},{"chapter_id":1,"order":4,"slug":"crypto-fees","title":"The Different Types of Crypto Fees Explained","status":"published","modified_content":null},{"chapter_id":1,"order":5,"slug":"what-is-bridging-in-crypto","title":"The Key Notion Behind the Concept of Bridging in Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":6,"slug":"types-of-blockchains","title":"Different Types of Blockchains: What to Look Out For?","status":"published","modified_content":null}]},{"id":2,"title":"Cryptocurrencies","slug":"cryptocurrencies","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-cryptocurrencies.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/cryptocurrencies-101.jpg","rating":100,"sections":[{"chapter_id":2,"order":1,"slug":"what-is-a-cryptocurrency","title":"What is a Cryptocurrency?","status":"published","modified_content":null},{"chapter_id":2,"order":2,"slug":"how-does-cryptocurrency-work","title":"How Does Cryptocurrency Work?","status":"published","modified_content":null},{"chapter_id":2,"order":3,"slug":"is-cryptocurrency-a-good-investment","title":"Is Cryptocurrency a Good Investment? 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Mining?","status":"published","modified_content":null},{"chapter_id":9,"order":3,"slug":"what-is-staking-crypto","title":"An Advanced Look into What is Staking Crypto","status":"published","modified_content":null},{"chapter_id":9,"order":4,"slug":"what-is-proof-of-stake-vs-proof-of-work","title":"Proof-of-Work VS Proof-of-Stake: The Differences That Matter","status":"published","modified_content":null},{"chapter_id":9,"order":5,"slug":"what-is-crypto-mining-rig","title":"Crypto Mining Rig: What It is and How to Build One?","status":"published","modified_content":null}]},{"id":10,"title":"Crypto Terms","updated":false,"chapter":"crypto\/assets\/crypto-book\/chapters\/crypto-101-glossary.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/crypto-glossary-101.jpg","rating":100,"sections":["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]}]" current-chapter="H" current-section="what-is-hashed-timelock-contract-htlc">