Apache Log4j is an open-source, Java-based logging utility used by developers to record application events, errors, and operational data. It is a popular tool for debugging, system monitoring, and conducting audits across myriad Java platforms.
In the Hedera ecosystem, the log4j2-hedera repository offers a specific integration for Log4j 2.x and provides a custom appender that enables recording of logged events directly to the Hedera network via the Hedera Consensus Service (HCS). This allows applications to interact with HCS to submit their log entries, effectively writing them onto Hedera's distributed ledger.
The primary benefits of this integration include ensuring that logged data is distributed, secure, and transparent providing provable security. Furthermore, it guarantees the integrity and immutability of the recorded log information, as each entry is validated by Hedera’s consensus mechanism. This specialized appender provides a robust solution for applications requiring verifiable, tamper-resistant logging. This use case is distinct from how Hedera's core network software and provides additional verification.
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Twigital is a decentralized application (dApp) that enables users to create tokenized digital twins of physical objects. These digital twins are represented as 3D objects, which can be minted as non-fungible tokens (NFTs) on the Hedera network. The platform allows users to memorialize objects in the Web3 space.
The Twigital mobile application is available on iOS where it uses photogrammetry to capture real-world objects. Users can generate 3D models of objects from photographs. The app guides users through this process with detailed instructions and, once created, these 3D models can be minted as NFTs.
A key feature of Twigital is its integration with the Hedera network. Users connect their Hedera wallets to manage digital assets. This enables easy valuation, trading, and viewing of NFT details. The assets created are content-addressed using interplanetary file system(IPFS), providing unique identification for each digital twin. These unique twins can then be linked to minted NFTs. Twigital covers the transaction fees for creating these NFTs, which are factored into the cost of using the service.
Medical Value Chain (MVC) is a Bahrain-based subsidiary of AVC Global. It provides a track-and-trace platform for pharmaceutical supply chains to ensure regulatory compliance and combat counterfeit drugs. MVC's innovative financial model is funded by the pharmaceutical industry, meaning there is no cost to governments or citizens.
MVC's core product is the SmartPass, a platform built on a dual-blockchain architecture that integrates with GS1 global serialisation standards. This technology creates a transparent and immutable record of pharmaceutical products as they move through the supply chain, from manufacturer to consumer. SmartPass is designed to provide "absolute transparency," protecting against counterfeit medications, improving supply chain efficiency, and reducing fraud. A key component of this system is the OneScan feature, which allows for the verification of product authenticity.
The company utilises the Hedera Consensus Service (HCS) to create a verifiable and auditable log of all supply chain events. This "dual immutable distributed ledger technology" provides a high level of security and transparency, ensuring the integrity of the data.
HashPack is a leading non-custodial wallet specifically designed for the Hedera Hashgraph network. It provides integrated interaction with the HBAR and Hedera Token Service (HTS) tokens, as well as with non-fungible tokens (NFTs) and decentralized applications (DApps) within the Hedera ecosystem.
It is available as a browser extension (with support for Chrome), a desktop application supporting Windows/Mac, and mobile apps for iOS and Android. HashPack offers a suite of features tailored for Hedera users including native HBAR staking, an in-wallet NFT gallery, multi-account support, and address books. Security is a key focus of the HashPack wallet, with users retaining full control of their private keys which remain encrypted on their devices. It also supports integration with hardware wallets such as Ledger and D'CENT for added security and offers biometric security features on its mobile apps.
HashPack facilitates interaction within the Hedera ecosystem through its DApp browser, connecting users to DeFi protocols, NFT marketplaces, and other decentralized applications and supports in-wallet swaps via integrations with decentralized exchanges on Hedera, such as SaucerSwap.
Flowcarbon is a climate technology company focused on the Voluntary Carbon Market (VCM). Its mission is to make carbon markets more transparent, liquid, and accessible, through the use of blockchain technologies, thereby accelerating the flow of capital directly to projects that reduce or remove carbon emissions from the atmosphere. The company addresses critical inefficiencies in the traditional carbon market, such as opaque pricing, high transaction costs, and limited access for smaller participants.
The core of Flowcarbon's model is the tokenization of high-quality, verified carbon credits. Each token represents a real-world, certified tonne of carbon offset. This process creates a transparent and immutable record of ownership and transactions, enabling credits to be traded efficiently on digital marketplaces. One of the company’s initial token concepts was the Goddess Nature Token (GNT), designed as a liquid asset backed by a bundle of nature-based carbon credits.
By creating a more functional and efficient market infrastructure, Flowcarbon aims to provide project developers with faster access to financing and better price discovery. For buyers, from large corporations to individuals, it offers a more direct and transparent way to purchase credits and offset their carbon footprint.