| 
| Hedera Hashgraph 
| #HBAR
|
| HBAR Price: | $0.19 | | Volume: | $0.2 B | | All Time High: | $0.57 | | Market Cap: | $8.0 B |
|
| Circulating Supply: | 42,219,399,509 |
| Exchanges: | 39
| | Total Supply: | 50,000,000,000 |
| Markets: | 74
| | Max Supply: | 50,000,000,000 |
| Pairs: | 47
|
|
The price of #HBAR today is $0.19 USD.
The lowest HBAR price for this period was $0, the highest was $0.191, and the current live price for one HBAR coin is $0.19065.
The all-time high HBAR coin price was $0.57.
Use our custom price calculator to see the hypothetical price of HBAR with market cap of ETH and how the supply affects the price of HBAR at different market capitalizations. |
The code for Hedera Hashgraph is #HBAR.
Hedera Hashgraph is 5.5 years old. |
The current market capitalization for Hedera Hashgraph is $8,049,172,582.
Hedera Hashgraph is ranked #15, by market cap (and other factors). |
There is a very large volume of trading today on #HBAR.
Today's 24-hour trading volume across all exchanges for Hedera Hashgraph is $179,899,366. |
The circulating supply of HBAR is 42,219,399,509 coins, which is 84% of the maximum coin supply.
Hedera Hashgraph has a relatively large supply of coins, 347 times larger than Ethereum's supply, as an example. |
Hethers.js Being Deprecated in Favor of EVM Tooling
edera.com Hedera is committed to providing developers with easy-to-use and up-to-date tools and resources. With that goal in mind, Hedera core contributors are announcing the deprecation of the hethers.js library by October 20, 2023. — Why is Hethers.js Being Deprecated? - With Hedera becoming increasingly EVM-equivalent, the need to maintain a separate library like hethers.js is diminishing. Native EVM tooling like ethers.js and web3.js, enabled by the JSON-RPC Relay, can now be used to deploy and interact with Hedera smart contracts., Focusing on EVM tooling provides a more unified developer experience. Developers who are familiar with Ethereum can now easily transition to building on Hedera., Deprecating hethers.js reduces redundancy and consolidates the toolset developers need to work with., — Action for Developers Currently Using Hethers.js - If you currently use hethers.js, you should transition to ethers.js, web3.js, or other EVM tooling before October 20, 2023. Refer to the Hedera documentation on using tools like web3.js, ethers.js, Hardhat, Foundry, Truffle, and The Graph. Tutorials can be found in the smart contract section. While hethers.js will remain available on GitHub, it will no longer receive official support and updates after the deprecation date. Please share any feedback or questions via the #feedback channel on Discord. We’re here to help with the transition. — Timeline - Now un... 
| 
Develop a Hedera DApp with MetaMask, HashPack, and Blade Integration
edera.com In the dynamic world of decentralized applications (DApps), catering to users with diverse wallet preferences is important. With the increasing adoption of blockchain technology, individuals utilize various wallet solutions to manage their digital assets. Hedera has taken a significant stride towards inclusivity by introducing MetaMask support through the groundbreaking HIP-583. This integration offers an exciting opportunity for Ethereum Virtual Machine (EVM) users to seamlessly transition to the robust and scalable Hedera ecosystem. In this step-by-step guide to DApp development, you will unlock the full potential of multi-wallet Hedera DApps. Armed with React, Material UI, Ethers, and TypeScript, you will be guided through creating a Hedera DApp. By leveraging the power of the Create React App (CRA) Hedera DApp template, designed to simplify your development journey, you can integrate popular wallets such as MetaMask, Hashpack, and Blade. We’ll use the Mirror Node API and Hedera Token Service (HTS) throughout this tutorial. You’ll gain invaluable insights into querying the mirror node and incorporating HTS functionality into your DApp, allowing users to manage and transact with HTS tokens effortlessly. With this approach, you will have a comprehensive understanding of MetaMask integration and be equipped with the necessary tools to develop your own DApp from start to finish. — Prerequisites - A Hedera...
| 
How to Create ChatGPT Plugins — Unlock the Power of AI and Blockchain
How to Create ChatGPT Plugins — Unlock the Power of AI and Blockchain - hedera.com — Goals - By reading this article, you will learn: The benefits of using AI and blockchain together, What ChatGPT and Hedera are, How to create a ChatGPT plugin that interacts with Hedera, How to use the plugin to get HBAR and token balances for Hedera accounts, — Tools You Will Use - Replit (Website), Python with Flask and Waitress (Documentation), ChatGPT (Website), OpenAI API (Documentation), Hedera Mirror Node REST API (Documentation), Hedera Network Explorer (HashScan), — Try it Yourself - Try the example quickly by forking this Repl, Get the example code from GitHub, — Artificial Intelligence (AI) and Blockchain - AI and blockchain are two technological trends that have captured everyone’s attention — but what are these trends all about? AI is about autonomous systems that can learn, make decisions, and adapt. Blockchain is a secure and immutable way to record transactions or digital interactions. The learning aspect of AI, coupled with blockchain’s immutable nature, introduces a revolutionary change in how data can be processed and utilized. The intersection of AI and blockchain will most likely impact various sectors. For instance, in healthcare, AI can analyze securely stored patient records for personalized treatment, while blockchain ensures the integrity of the data. In finance, sm...
| 
Hedera Smart Contract Service Security Model Update
edera.com The Hedera Smart Contract Service (HSCS) combines the third-generation Hedera native entity functionality — high throughput with fast finality, affordable and predictable fees, and fair transaction ordering — with an optimized and highly performant second-generation Ethereum Virtual Machine (EVM). Our goal is to provide full support for smart contracts written on other EVM-compatible chains and to facilitate their smooth deployment on Hedera — as simple as copy/paste. Developers should be able to simply point to a Hedera-supported RPC endpoint and carry out their smart contract executions and queries with the same code and similar tools — this is our goal for EVM equivalence To achieve this, the ledger executes all smart contract transactions using the Besu EVM and persists the changes in the Hedera-optimized Virtual Merkle Tree state. Users are able to observe certain finality (not probabilistic finality) of smart contract executions in 2–3 seconds whiles ensuring state changes can be fully encapsulated in smart contract functionality. Hedera Consensus Nodes must strike a delicate balance between Hedera security and EVM security models. With HSCS Security Model v1, the complexity of this challenge left gaps for which bad actors could operate. With the HCSC Security Model v2, greater clarity and additional protections have been brought to the network. — v1 Security Model Boundaries - ...
| 
Get Ready for the Updated Security Model of the Hedera Smart Contract Service by July 2023
edera.com — What is the change? - After the security incident of March 2023, core Hedera engineers conducted a thorough analysis of the Smart Contract Service and the Hedera Token Service system contracts. No new vulnerabilities were found, but the team looked for any behavioral differences between Hedera Token Service system contract APIs and those of Ethereum Virtual Machine (EVM) or ERC token APIs that could be used maliciously. To eliminate any possibility of such differences being used as attack vectors in the future, the consensus node software will align the behaviors of the Hedera Smart Contract Service and HTS system contracts with those of EVM and typical token APIs such as ERC 20 and ERC 721. — As a developer on Hedera, what should I do? - Developers are strongly encouraged to test their applications with new contracts and UX using the new security model to avoid unintended consequences. The new security model has been applied to contracts created from the mainnet 0.35.2 release onwards., Existing contracts deployed prior to this upgrade will continue to use the previous security model for a limited time to allow for application/UX modifications., The previous security model will only be maintained for an approximate period of 3 months. The current target is for the network to remove the previous security model and for all contracts to follow the new security model by the mainnet release of July 202...
| 
How to Create a Smart Contract App on Hedera Using Solidity, React JS, MetaMask, and Ethers JS — A…
How to Create a Smart Contract App on Hedera Using Solidity, React JS, MetaMask, and Ethers JS — A Simple Counter - hedera.com In this step-by-step tutorial, you will create a simple counter dApp on the Hedera network using Solidity, React JS, MetaMask, and Ethers JS. The goal with this example is to help you understand the fundamentals of dApp development, making it easier for you to create more complex dApps in the future. Let’s dive in and start building our counter dApp on Hedera! medium.com — Try It Yourself - Get a Hedera Testnet account:, — This portal acts like a faucet, giving you 10,000 test HBAR every 24 hours., — If you’re new to Hedera, check out these steps to set up your development environment., Try the example quickly using this Gitpod:, — Continue with your GitHub account., — In the lower right corner, click the prompt “Open Browser.”, Get the example code from GitHub., — Tools You Will Use - React JS (Documentation), MetaMask (Documentation), Ethers JS (Documentation), Solidity (Documentation), Hedera JSON-RPC Relay (Hashio), Mirror node REST API (Learn More), Mirror node explorer (HashScan), Axios (npm package), — Goals - Understand the fundamentals of integrating an ethers provider for communication between a React JS application, MetaMask, and a smart contract on Hedera., Learn how to deploy and interact with a Solidity smart contract on Hedera us...
| 
How to Create an HBAR Token Faucet for MetaMask
edera.com Enabling the opportunity to connect to a dApp with different wallets provides more control to the user. Recently, HIP-583 added the necessary network infrastructure to support Ethereum Virtual Machine (EVM) wallets on the Hedera network. This added functionality, combined with the auto-create flow described in HIP-32, enables developers to transfer native Hedera Token Service tokens to EVM addresses that do not yet exist on the Hedera network. In this tutorial, we start out with a Hedera react app, connect our dApp to MetaMask, and finally transfer HBAR to the connected MetaMask account. — What we will do: - Create a Hedera react-app Utilizing TypeScript and Material UI, Install MetaMask Chrome Extension, Add Hedera Testnet Network to MetaMask, Connect Our dApp to MetaMask and Retrieve Wallet Address, Install Hedera Hashgraph JS SDK and Create Your Client, Send HBAR to MetaMask Wallet, The complete TypeScript project can be found on GitHub here. The complete JavaScript project can be found on GitHub here. — How Do I Build an HBAR Faucet for MetaMask? - — Step 1: Create a react-app - Open your terminal and run the following command to create a react-app that utilizes TypeScript and Material UI.npx create-react-app hbar-faucet-testing --template git+ssh://git@github.com/a-ridley/cra-template-hedera-theme.git This create react-app theme provides a navbar with a button, footer, react-router,...
| 
The Rise of the Identity Token
edera.com Since the minting of the first Non Fungible Token (NFT) in 2014 we have seen increased interest in their capabilities as unique, one-of-kind digital “deeds of ownership” representing assets such as artwork, music, collectibles and more. In May of 2022 we saw the release of the paper “Decentralized Society: Finding Web3’s Soul” which raised the concept of a Soulbound Tokens (Non Transferable Non Fungible Tokens), generating a spirited conversation on the concept of using NFTs for identity applications. Since then we have seen increased interest and development of a new class of NFTs based around components of a user’s identity, which I call “Identity Tokens”. Within Identity Tokens we see two distinct subclasses emerging. The first is the “KYC/KYB Token”, which involves a 3rd party providing an assertion about someone’s real-world identity on-chain — without disclosing the “core facts” of that identity themselves. The second is a “Badge Token”, which straightforwardly makes claims about the user’s actions, history, or reputation, or those of their Web3 “persona”. While both of these sub classes of tokens might technically be very similar, the key difference, as explored below, is that KYC/KYB Tokens are strongly controlled by their issuer and have a very specific identity proofing application. Badge Tokens on the other hand may be 3rd party or even self issued, and usage of th...
| 
Hedera Token Service: NFT Token Keys Edge Cases
edera.com medium.com This technical blog post tries to answer all your questions about token keys, how to use them, and their edge cases. Token keys can be set for any token created using the Hedera Token Service (HTS). This means you can set token keys for both fungible and non-fungible tokens. In this blog post, we’ll focus on non-fungible tokens. Here’s an overview of what you’ll learn in this blog post: Which keys can you set for tokens?, Why do you set token keys?, How to create an NFT using the JavaScript SDK?, Token keys test cases, — Case 1: Can you make changes to an NFT when you don’t set an admin key?, — Case 2: Can the admin key remove other keys?, — Case 3: Can the admin key update other keys?, — Case 4: Can the admin key remove itself?, — Case 5: Can one account ID be set to different keys for the same token?, — Case 6: Can you assign multiple accounts to a single key?, — Case 7: Can you set no keys for an NFT?, Which keys are considered high-risk for collectible NFTs?, Let’s start! — Which keys can you set for tokens? - Here’s an overview of the seven possible keys you can set for a token. Admin key: This key can perform token update and token delete operations on the token. The admin key has the authority to change the supply key, freeze key, pause key, wipe key, and KYC key. It can also update the treasury account of the token. If empty, the token can be perceived...
| 
How to Inspect Smart Contract Transactions on Hedera Using Mirror Nodes
edera.com The goal of this tutorial is to help smart contract developers understand the traceability information for contract transactions that is provided by the mirror nodes. Specifically, you will learn how to view contract actions, state changes, and logs. Understanding this information and knowing where to get it can simplify the process of inspecting and debugging smart contracts on Hedera. For detailed information about the development and implementation of this traceability information, check out HIP-513: Smart Contract Traceability Extension and HIP-435: Record Stream V6. — Try It Yourself - Get a Hedera testnet account, — This portal acts like a faucet, giving you 10,000 test HBAR every 24 hours, — If you’re new to Hedera, check out these steps to setup your development environment, Use this Codesandbox to try the example, — Fork the sandbox, — Remember to provide testnet account credentials in the .env file, — Open a new terminal to execute index.js, Get the example code from GitHub, — You Will Use These Tools - Hedera JavaScript SDK (Documentation), Solidity (Documentation), Mirror node REST API (Learn More), Mirror node explorer (HashScan), — Let’s Inspect an Example: The Client Calls a Contract that Calls Another Contract - There are three entities in this scenario: Operator and two smart contracts. Your testnet credentials from the Hedera portal should be used fo...
|
|
|
|
|
Crypto Coin Prices and News 