Intro. to Lightning Network (Bitcoin/Litecoin) - Blockchain Developers MalaysiaTM Lee
Introduction to Lightning Network for Bitcoin and Litecoin presented at the first Blockchain Developers Malaysia meetup by TM Lee, co-founder of https://www.coingecko.com
Presented images cited from BitcoinMagazine and Lightning Network Slide Decks
Towards a Generalised Blockchain Fabric @ CodeBlock 2018Alexei Zamyatin
Presentation slides from my talk on atomic swaps, chain relays, meta layer protocols and the challenges of cross-chain interoperability @ Code Block 2018 hosted by Blockchain.com
The document introduces the Lightning Network as a solution to Bitcoin's scalability problems. It explains that Lightning Network creates payment channels between parties that allow for fast, low-cost transactions without broadcasting to the blockchain. Transactions are enforced through smart contracts. This allows the network to potentially process millions of transactions per second through payment hubs and routes. It outlines several open source Lightning Network implementations that are being developed to support the network.
This document discusses atomic swaps and hashed timelock contracts (HTLC) for exchanging cryptocurrency tokens between blockchains without a third party. It explains that HTLC uses hashlocks and timelocks to ensure one party receives payment by providing cryptographic proof before a deadline, or the payment is refunded. The document provides an example of an atomic swap using HTLC between Alice and Bob, where Alice deposits ETH for Bob's EOS tokens if Bob reveals a preimage to unlock the contract. It also lists precautions and open source implementations of HTLC contracts for Ethereum and EOS.
Can you help me create an ERC20 or BSC token_.pptxBlockchainX
At BlockchainX tech, we help startups, medium-sized enterprises, and large-sized businesses by providing end-to-end blockchain development services such as token creation, token sale distribution, landing page design, whitepaper writing, and smart contract creation. As your business idea is unique your cryptocurrency launch process will also be one of a kind. Our blockchain experts help you analyze your concept to make sure that your idea is effective enough to motivate people for funding. Our experience so far in ICO and blockchain development is unmatched and it allows us to provide stable cryptocurrency solutions that are tailor-made to match your business requirements. Raise your Initial Coin Offering with minimal steps and get professional guidance from our team of blockchain and cryptocurrency experts.
From investment point of view, ethereum and tokens are nothing more than investment product. From implementation perspective they are different. This deck will tell the difference between Ethers and Tokens.
This meetup agenda covers an introduction to ERC20 tokens on Ethereum. The first part will be an overview of ERC20 tokens presented by Destry. They will discuss what defines a token and examples of existing ERC20 tokens like BAT, Augur, and OmiseGO. The second part will involve reviewing sample ERC20 smart contracts and the minimum requirements to create an ERC20 token, noting that copying and publishing existing code could create a new token. Risks discussed include malicious contracts and tokens only being as useful as the applications that support them.
Intro. to Lightning Network (Bitcoin/Litecoin) - Blockchain Developers MalaysiaTM Lee
Introduction to Lightning Network for Bitcoin and Litecoin presented at the first Blockchain Developers Malaysia meetup by TM Lee, co-founder of https://www.coingecko.com
Presented images cited from BitcoinMagazine and Lightning Network Slide Decks
Towards a Generalised Blockchain Fabric @ CodeBlock 2018Alexei Zamyatin
Presentation slides from my talk on atomic swaps, chain relays, meta layer protocols and the challenges of cross-chain interoperability @ Code Block 2018 hosted by Blockchain.com
The document introduces the Lightning Network as a solution to Bitcoin's scalability problems. It explains that Lightning Network creates payment channels between parties that allow for fast, low-cost transactions without broadcasting to the blockchain. Transactions are enforced through smart contracts. This allows the network to potentially process millions of transactions per second through payment hubs and routes. It outlines several open source Lightning Network implementations that are being developed to support the network.
This document discusses atomic swaps and hashed timelock contracts (HTLC) for exchanging cryptocurrency tokens between blockchains without a third party. It explains that HTLC uses hashlocks and timelocks to ensure one party receives payment by providing cryptographic proof before a deadline, or the payment is refunded. The document provides an example of an atomic swap using HTLC between Alice and Bob, where Alice deposits ETH for Bob's EOS tokens if Bob reveals a preimage to unlock the contract. It also lists precautions and open source implementations of HTLC contracts for Ethereum and EOS.
Can you help me create an ERC20 or BSC token_.pptxBlockchainX
At BlockchainX tech, we help startups, medium-sized enterprises, and large-sized businesses by providing end-to-end blockchain development services such as token creation, token sale distribution, landing page design, whitepaper writing, and smart contract creation. As your business idea is unique your cryptocurrency launch process will also be one of a kind. Our blockchain experts help you analyze your concept to make sure that your idea is effective enough to motivate people for funding. Our experience so far in ICO and blockchain development is unmatched and it allows us to provide stable cryptocurrency solutions that are tailor-made to match your business requirements. Raise your Initial Coin Offering with minimal steps and get professional guidance from our team of blockchain and cryptocurrency experts.
From investment point of view, ethereum and tokens are nothing more than investment product. From implementation perspective they are different. This deck will tell the difference between Ethers and Tokens.
This meetup agenda covers an introduction to ERC20 tokens on Ethereum. The first part will be an overview of ERC20 tokens presented by Destry. They will discuss what defines a token and examples of existing ERC20 tokens like BAT, Augur, and OmiseGO. The second part will involve reviewing sample ERC20 smart contracts and the minimum requirements to create an ERC20 token, noting that copying and publishing existing code could create a new token. Risks discussed include malicious contracts and tokens only being as useful as the applications that support them.
ERC20 tokens are digital assets created on the Ethereum blockchain using the ERC20 standard, which defines core functions like transferring tokens, checking balances, and approving transfers. This standard allows for predictable development of new tokens and cross-compatibility between applications. ERC20 tokens can power a variety of projects like cryptocurrencies for apps, voting systems, asset tokenization, and more. The Ethereum platform and its ERC20 standard provide developers with tools to build innovative decentralized applications and networks.
At BlockchainX tech, we help startups, medium-sized enterprises, and large-sized businesses by providing end-to-end blockchain development services such as token creation, token sale distribution, landing page design, whitepaper writing, and smart contract creation. As your business idea is unique your cryptocurrency launch process will also be one of a kind. Our blockchain experts help you analyze your concept to make sure that your idea is effective enough to motivate people for funding. Our experience so far in ICO and blockchain development is unmatched and it allows us to provide stable cryptocurrency solutions that are tailor-made to match your business requirements. Raise your Initial Coin Offering with minimal steps and get professional guidance from our team of blockchain and cryptocurrency experts.
How to bring 90% of the total coin market cap to distributed exchanges currently limited to tokens hosted on the same blockchain where their smart contracts are located.
Actually, distributed exchanges are limited to the token hosted on the same network where their smart contracts are loc
Exploring the ERC20 Token Standard for Ethereum BlockchainMuneeb Ur Rehman
ERC20 is a token standard interface which allows to create a fully fungible tokens on Ethereum Blockchain. ERC stands for Ethereum Request for Comments. It allows to mint as many tokens as the owner wants.
This document compares three distributed ledger platforms: Ethereum, Hyperledger Fabric, and R3 Corda. Ethereum is an open blockchain that allows any application to be built on top of it, while Hyperledger Fabric and Corda are permissioned ledgers often used for enterprise applications. Fabric utilizes channels to restrict information sharing, while Corda uses a model where each node maintains a unique ledger and shares facts only with counterparties to transactions. Overall, the platforms differ in their governance models, data sharing capabilities, and focus on public versus private deployments.
Here Blockchain and CryptoAsset (K) Ltd. give a view of how cryptocurrency or cryptoassets fit into the wider technological space involving blockchain and related technologies and the investment opportunities made available.
This document discusses ERC-721, the Ethereum Request for Comment standard for non-fungible tokens (NFTs). It begins by introducing CryptoKitties, a popular application that uses the ERC-721 standard to represent unique digital cats. It then defines fungible and non-fungible assets, explaining that ERC-721 allows for unique digital collectibles. The document outlines ERC-20, the standard for fungible tokens, and compares it to ERC-721. It envisions potential future applications of ERC-721 tokens to represent real-world assets like property.
Comparing nft development platforms ethereum vs solanaMarnusharris
In this, we'll look at two popular blockchains from the standpoint of development. After a rough month in September, investors betting money on Ether are seeing a steady slowdown. In the first week of November, the cryptocurrency reached a high of $4818.97, after which it has been a constant disappointment in comparison to the competitive Ethereum.
The document outlines details about the Bancor protocol including its team members, idea to create "smart tokens" with constant reserve ratios, large potential market by solving liquidity issues on exchanges, how the technology works by allowing users to create tokens backed by other tokens, and plans for an upcoming crowdsale.
The document provides information on key components and concepts related to the public Ethereum blockchain, including miners and mining nodes, the Ethereum Virtual Machine (EVM), Ether, gas, transactions, accounts, Swarm and Whisper protocols, the Ethash mining algorithm, and frameworks like Truffle and Embark. It also compares Ethereum to Bitcoin and describes tools like Etherscan.io.
BlockchainX's expert developers have answers for you with state of the art Erc20 token generator. Give your Dapps the power of ethereum based ERC20 token and integrate secured crypto payment systems.
ERC Standards Token Development Services Everything You Need to KnowTurnkeytown
ERC standards token development services can help you to create a custom ERC token that meets your specific needs. When choosing an ERC standards token development service, there are a number of factors to consider, including the company's experience, reputation, fees, and support.
ERC20 is a #software or #code. It is a standard protocol just like #HTTP. It regulates the tokenization and ensures that the technical specification of the tokens is meet. If a token doesn’t meet regularity, it won’t be called #ERC20token. If it does, it can be termed as “ERC20 token.” https://www.developcoins.com/what-is-ethereum-token
Presented at All Things Open 2023
Presented by Anastasia Lalamentik - Kaleido
Title: How to Write & Deploy a Smart Contract
Abstract: In this talk, Anastasia Lalamentik, Full Stack Engineer at Kaleido, will walk through how Ethereum smart contracts work and go over related concepts like gas fees, the Ethereum Virtual Machine (EVM), the block explorer, and the Solidity programming language. This is vital to anyone who wants to build a blockchain app and is a great introduction to blockchain technology for newcomers to the space.
By the end of the talk, attendees will better understand how to:
- Write a simple smart contract
- Deploy their smart contract to an Ethereum test network through the latest tools like Hardhat and the MetaMask wallet
- Test interactions with their deployed smart contract and ensure that everything is working properly
Additionally, participants will get to interact with Anastasia's deployed smart contract at the end of the talk. Anastasia’s past talks have attracted and have been attended by a diverse group of participants with a range of experience in the space.
Find more info about All Things Open:
On the web: https://www.allthingsopen.org/
Twitter: https://twitter.com/AllThingsOpen
LinkedIn: https://www.linkedin.com/company/all-things-open/
Instagram: https://www.instagram.com/allthingsopen/
Facebook: https://www.facebook.com/AllThingsOpen
Mastodon: https://mastodon.social/@allthingsopen
Threads: https://www.threads.net/@allthingsopen
2023 conference: https://2023.allthingsopen.org/
Restribute ~ Wealth re-distirbution by blockchain hardfork ~ Tomoaki Sato
This document discusses redistributing wealth through blockchain hardforks. It begins by defining permissionless blockchains like Bitcoin and Ethereum. It then discusses how wealth is initially distributed through mining, crowdsales, and trading on exchanges. The document uses Ethereum's hardfork after the DAO hack as an example of how a hardfork can create two networks with different distributions of wealth over time. It proposes that periodic hardforks could be used to intentionally redistribute wealth in a decentralized way, avoiding corruption risks of centralized authorities but with lower operational costs. Finally, it outlines plans to measure the effects of redistribution and conduct a social experiment with an initial hardfork.
Token Creation is the demanding services among the #Cryptocurrency industry. Explore here, to know 'How to Create Your Own Token?' @ http://bit.ly/2Feu9GJ
How is a Crypto Token different from Crypto Coin.pdfTusharVerma933268
Cryptocurrency tokens and coins are two different forms of digital assets, both having distinct characteristics with varied associated usages. Both are valuable tools in the increasingly popular cryptocurrency industry but serve very different purposes.
ERC20 tokens are digital assets created on the Ethereum blockchain using the ERC20 standard, which defines core functions like transferring tokens, checking balances, and approving transfers. This standard allows for predictable development of new tokens and cross-compatibility between applications. ERC20 tokens can power a variety of projects like cryptocurrencies for apps, voting systems, asset tokenization, and more. The Ethereum platform and its ERC20 standard provide developers with tools to build innovative decentralized applications and networks.
At BlockchainX tech, we help startups, medium-sized enterprises, and large-sized businesses by providing end-to-end blockchain development services such as token creation, token sale distribution, landing page design, whitepaper writing, and smart contract creation. As your business idea is unique your cryptocurrency launch process will also be one of a kind. Our blockchain experts help you analyze your concept to make sure that your idea is effective enough to motivate people for funding. Our experience so far in ICO and blockchain development is unmatched and it allows us to provide stable cryptocurrency solutions that are tailor-made to match your business requirements. Raise your Initial Coin Offering with minimal steps and get professional guidance from our team of blockchain and cryptocurrency experts.
How to bring 90% of the total coin market cap to distributed exchanges currently limited to tokens hosted on the same blockchain where their smart contracts are located.
Actually, distributed exchanges are limited to the token hosted on the same network where their smart contracts are loc
Exploring the ERC20 Token Standard for Ethereum BlockchainMuneeb Ur Rehman
ERC20 is a token standard interface which allows to create a fully fungible tokens on Ethereum Blockchain. ERC stands for Ethereum Request for Comments. It allows to mint as many tokens as the owner wants.
This document compares three distributed ledger platforms: Ethereum, Hyperledger Fabric, and R3 Corda. Ethereum is an open blockchain that allows any application to be built on top of it, while Hyperledger Fabric and Corda are permissioned ledgers often used for enterprise applications. Fabric utilizes channels to restrict information sharing, while Corda uses a model where each node maintains a unique ledger and shares facts only with counterparties to transactions. Overall, the platforms differ in their governance models, data sharing capabilities, and focus on public versus private deployments.
Here Blockchain and CryptoAsset (K) Ltd. give a view of how cryptocurrency or cryptoassets fit into the wider technological space involving blockchain and related technologies and the investment opportunities made available.
This document discusses ERC-721, the Ethereum Request for Comment standard for non-fungible tokens (NFTs). It begins by introducing CryptoKitties, a popular application that uses the ERC-721 standard to represent unique digital cats. It then defines fungible and non-fungible assets, explaining that ERC-721 allows for unique digital collectibles. The document outlines ERC-20, the standard for fungible tokens, and compares it to ERC-721. It envisions potential future applications of ERC-721 tokens to represent real-world assets like property.
Comparing nft development platforms ethereum vs solanaMarnusharris
In this, we'll look at two popular blockchains from the standpoint of development. After a rough month in September, investors betting money on Ether are seeing a steady slowdown. In the first week of November, the cryptocurrency reached a high of $4818.97, after which it has been a constant disappointment in comparison to the competitive Ethereum.
The document outlines details about the Bancor protocol including its team members, idea to create "smart tokens" with constant reserve ratios, large potential market by solving liquidity issues on exchanges, how the technology works by allowing users to create tokens backed by other tokens, and plans for an upcoming crowdsale.
The document provides information on key components and concepts related to the public Ethereum blockchain, including miners and mining nodes, the Ethereum Virtual Machine (EVM), Ether, gas, transactions, accounts, Swarm and Whisper protocols, the Ethash mining algorithm, and frameworks like Truffle and Embark. It also compares Ethereum to Bitcoin and describes tools like Etherscan.io.
BlockchainX's expert developers have answers for you with state of the art Erc20 token generator. Give your Dapps the power of ethereum based ERC20 token and integrate secured crypto payment systems.
ERC Standards Token Development Services Everything You Need to KnowTurnkeytown
ERC standards token development services can help you to create a custom ERC token that meets your specific needs. When choosing an ERC standards token development service, there are a number of factors to consider, including the company's experience, reputation, fees, and support.
ERC20 is a #software or #code. It is a standard protocol just like #HTTP. It regulates the tokenization and ensures that the technical specification of the tokens is meet. If a token doesn’t meet regularity, it won’t be called #ERC20token. If it does, it can be termed as “ERC20 token.” https://www.developcoins.com/what-is-ethereum-token
Presented at All Things Open 2023
Presented by Anastasia Lalamentik - Kaleido
Title: How to Write & Deploy a Smart Contract
Abstract: In this talk, Anastasia Lalamentik, Full Stack Engineer at Kaleido, will walk through how Ethereum smart contracts work and go over related concepts like gas fees, the Ethereum Virtual Machine (EVM), the block explorer, and the Solidity programming language. This is vital to anyone who wants to build a blockchain app and is a great introduction to blockchain technology for newcomers to the space.
By the end of the talk, attendees will better understand how to:
- Write a simple smart contract
- Deploy their smart contract to an Ethereum test network through the latest tools like Hardhat and the MetaMask wallet
- Test interactions with their deployed smart contract and ensure that everything is working properly
Additionally, participants will get to interact with Anastasia's deployed smart contract at the end of the talk. Anastasia’s past talks have attracted and have been attended by a diverse group of participants with a range of experience in the space.
Find more info about All Things Open:
On the web: https://www.allthingsopen.org/
Twitter: https://twitter.com/AllThingsOpen
LinkedIn: https://www.linkedin.com/company/all-things-open/
Instagram: https://www.instagram.com/allthingsopen/
Facebook: https://www.facebook.com/AllThingsOpen
Mastodon: https://mastodon.social/@allthingsopen
Threads: https://www.threads.net/@allthingsopen
2023 conference: https://2023.allthingsopen.org/
Restribute ~ Wealth re-distirbution by blockchain hardfork ~ Tomoaki Sato
This document discusses redistributing wealth through blockchain hardforks. It begins by defining permissionless blockchains like Bitcoin and Ethereum. It then discusses how wealth is initially distributed through mining, crowdsales, and trading on exchanges. The document uses Ethereum's hardfork after the DAO hack as an example of how a hardfork can create two networks with different distributions of wealth over time. It proposes that periodic hardforks could be used to intentionally redistribute wealth in a decentralized way, avoiding corruption risks of centralized authorities but with lower operational costs. Finally, it outlines plans to measure the effects of redistribution and conduct a social experiment with an initial hardfork.
Token Creation is the demanding services among the #Cryptocurrency industry. Explore here, to know 'How to Create Your Own Token?' @ http://bit.ly/2Feu9GJ
How is a Crypto Token different from Crypto Coin.pdfTusharVerma933268
Cryptocurrency tokens and coins are two different forms of digital assets, both having distinct characteristics with varied associated usages. Both are valuable tools in the increasingly popular cryptocurrency industry but serve very different purposes.
Similar to Webinar in English for the Token Bridge between RSK and Ethereum (20)
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4. What’s the Token Bridge
The token bridge is a protocol that allows to move ERC20 tokens between RSK and
Ethereum.
You can send a Token to the bridge and receive it on the other chain in the same address.
It uses smart contracts and oracles to connect both blockchains and has a Dapp for end
user.
5. What’s an ERC20
ERC20 are smart contracts that
follows a standard that defines
certain rules for issuing tokens.
The tokens are crypto assets that
can be traded but, unlike
cryptocurrencies (Bitcoin,
Ethereum, etc), they don’t have a
dedicated blockchain.
The ERC20 tokens are the main
asset offer in an ICO (Initial Coin
Offering).
You can find other tokens at
https://coinmarketcap.com/tokens/views/all/
7. Prerequisite
To use the token bridge we first need to have a wallet, enough balance to pay for the
transactions and tokens to transfer. We can obtain it from:
• Wallet: Nifty Wallet set as custom node
• RSK:
• RIF Token: https://faucet.rifos.org/
• RBTC Balance: https://faucet.rsk.co/
• Ethereum
• TUSD: https://github.com/trusttoken/true-currencies#deployments
• ETH Balance: https://faucet.kovan.network/ or https://gitter.im/kovan-testnet/faucet
8. Use the Dapp to cross the tokens
Use the Dapp:
• Mainnet: https://tokenbridge.rsk.co/
• Testnet: https://testnet.tokenbridge.rsk.co/
Follow the instructions at https://developers.rsk.co/tools/tokenbridge/dappguide/
Keep in mind that crossing the tokens takes about 5 minutes in testnet and 1 hour in
mainnet, these numbers are just estimations, since the actual time it takes fluctuates.
9. Limitations
For security reasons there are limits to the
tokens you can cross:
• Max tokens to cross 10.000
• Min tokens to cross 1
• Max daily limit of tokens to cross
100.000
You can see this limits in the Dapp on the
Info tab.
10. Which tokens can i cross?
You can’t cross any Token, there is a white list of tokens that can cross.
You can see it in the Token List tab in the Dapp web page:
• Mainnet: https://tokenbridge.rsk.co/
• Testnet: https://testnet.tokenbridge.rsk.co/
Please note that Mainnet and Testnet Token List may differ.
13. Federator Oracle
The federation oracle listens to both chains (RSK and Ethereum) for the events
emitted by the bridge contracts.
Once it has enough confirmations (blocks after the block of the event) it calls the
Federation contract on the other chain and votes for that event.
14. Token Bridge Smart Contracts
• AllowTokens: Keeps the whitelisted tokens and the max min and daily limits of
tokens to cross.
• Federation: Keeps track of the events crossed by the federators (oracles) and
once an event has been voted by the majority of the federators it calls the bridge.
• Bridge: The bridge is and upgreadable smart contract in charge of locking the
tokens, emit cross events, receive cross events and mint or burn side tokens.
Side Token contracts are created on the fly if it’s the first time this kind of token
appears.
• SideTokenFactory: Factory that creates Side Tokens
• SideToken: ERC777 (ERC20 compatible) that represents the token on the other
chain
• MultiSigWallet: Owner of the contracts, it needs a majority of signatures to do
any transaction
15. Open Source Code
The code is in a public repository on github
• ABIs to interact with the contracts:
https://github.com/rsksmart/tokenbridge/tree/master/abis
• Smart Contracts: https://github.com/rsksmart/tokenbridge/tree/master/bridge
• Federator: https://github.com/rsksmart/tokenbridge/tree/master/federator
• Dapp: https://github.com/rsksmart/tokenbridge/tree/master/ui