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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LimeChain is a blockchain development and consulting company that provides end-to-end services for startups and enterprises seeking to build on Web3 technologies. LimeChain offers deep expertise across a wide range of protocols, delivering solutions that include custom dApp development, DeFi product engineering, smart contract creation and audits, and strategic blockchain consulting. It works with clients to navigate the complexities of the decentralized web, from initial proof-of-concept and architecture design to full-scale implementation and support.
The company has established itself as a key development partner within numerous blockchain ecosystems, including a significant and long-standing relationship with Hedera. LimeChain has been instrumental in building core functionalities and tools for the Hedera network. Their collaborative work includes leading the development of the Hedera Token Service (HTS) and creating an open-source demonstration of the Hedera Consensus Service (HCS) integrating with enterprise systems such as Microsoft Dynamics.
Furthermore, LimeChain was a key technical partner in developing Hashport, a pioneering interoperability solution that uses HCS to bridge assets between Hedera and other major networks.
Wallawallet is a dedicated mobile cryptocurrency wallet designed to provide a secure and stable experience for users of the Hedera Hashgraph network. It was developed by Ledgerama with a core mission to offer robust management for HBAR, Hedera's native cryptocurrency, and Hedera Token Service (HTS) tokens. With an emphasis on security, it operates as a non-custodial solution ensuring users maintain complete control over their private keys, which are stored directly on their mobile devices. To further enhance security and minimize attack surfaces, it intentionally forgoes a web interface, focusing on a dedicated app environment for iOS and Android.
Key features of Wallawallet include seamless sending and receiving of HBAR and HTS tokens, along with integration for Ledger hardware wallets, allowing users to combine the convenience of a mobile app with the enhanced security of cold storage. It also incorporates functionality to support the Hedera ecosystem with features to help users associate tokens in preparation for airdrops, including HBAR-weighted airdrops.
Oneto11 is a multigenre mobile gaming platform built on the Hedera blockchain network. It features a pioneering social networking fantasy application with a diverse play-to-earn (P2E) ecosystem allowing users to generate income through wins and a deep, multi-layered referral system.
The Oneto11 platform hosts a wide array of games catering to different player preferences. Its core offering includes fantasy sports, where users create virtual teams for real-world matches in cricket, football, and other sports and compete for prizes. It also provides a robust collection of casual mobile games such as Ludo and Fruit Slice, educational quiz games, and immersive RPG and social metaverse experiences featuring non-fungible token (NFT) integration utilizing the Hedera blockchain platform.
A key aspect of Oneto11 is its integrated wallet, native “1TO11” token for ecosystem transactions, and NFT marketplace. Combined, these allow users to creation and trade in-game assets securely as NFTs, particularly within its RPG titles.
Gate.io, established in 2013, is one of the first global cryptocurrency exchanges. It is headquartered in the Cayman Islands, serves over 23 million users, and is widely renowned for its extensive selection of digital assets listing over 3,800 cryptocurrencies and tokens.
It offers a comprehensive trading experience which includes spot, margin, and futures trading alongside leveraged exchange-traded funds (ETFs). Beyond active trading, the platform provides numerous ways to earn through "Gate Earn," which features staking, lending, structured products, and auto-investment plans. It also features an initial exchange offering (IEO) launchpad for new projects called "Gate.io Startup."
A key component of its ecosystem is GateToken (GT), its native utility token, which offers users trading fee discounts, VIP tier benefits, and participation in governance and exclusive events. Gate.io has also developed “GateChain,” its own public blockchain focused on asset security and decentralized trading, which is EVM-compatible.
The Gate platform also features a non-fungible token (NFT) marketplace, advanced trading bots, copy trading, and a payments service called “Gate Pay.”