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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Dead Pixels Ghost Club (DPGC) is a community-focused non-fungible token (NFT) project built on the Hedera blockchain network. It features distinct hand-crafted pixel art consisting of 10,000 unique "ghost" NFTs which are released to the public in phased drops.
The DPGC platform leverages the energy-efficient and low-fee Hedera blockchain network for minting and trading its collectible NFTs. The project actively fosters interaction among its members through various events, including creative contests and story-writing competitions, encouraging holders to develop narratives for their ghostly collectibles.
DPGC collectibles are available on secondary Hedera-based marketplaces including SentX allowing users to further engage in expanded community showcases. The project has also inspired tools such as the "Dead Pixel Ghost Tab," a Chrome extension that displays a random ghost NFT with every new browser tab.
Rather than gaming or competition, the focus of Dead Pixels Ghost Club is on its art, collectibility, and community “spirit.”
LAToken is a global cryptocurrency exchange established in 2017, headquartered in Malta. It offers trading options for a wide array of digital assets, with a particular focus on providing liquidity for new tokens and facilitating Initial Exchange Offerings (IEOs).
The exchange offers several key trading services, including spot trading, crypto-to-crypto margin trading, and perpetual contracts. Beyond traditional trading, LAToken supports staking programs, enabling users to earn rewards on their holdings, and features a non-fungible token (NFT) marketplace. The platform boasts a significant number of listed cryptocurrencies catering to both popular and lesser-known altcoins.
It has its own native utility token, LA (an ERC-20 token), which is used for various functions on the platform, such as paying trading fees, often at a discounted rate, and participating in certain platform-specific activities.
LAToken serves as a comprehensive cryptocurrency exchange where users can engage in spot trading across a wide selection of digital assets and also explore crypto-to-crypto margin trading and perpetual contracts for more advanced strategies.
Evercity is a Berlin-based company that was founded in 2018. It streamlines and automates the issuance of sustainable finance instruments. The company's primary goal is to make green finance more accessible, transparent, and cost-effective, particularly for small and medium-sized enterprises (SMEs). Its core offering is a green debt and carbon origination platform, a SaaS solution that automates the entire lifecycle of sustainable finance, from structuring and issuance to monitoring and reporting.
The platform integrates with IoT and satellite technology to collect real-world data, which is used to verify the performance of green projects and prevent "greenwashing." A key feature is the ability to issue fully traceable digital assets, including carbon credits and sustainability-linked bonds.
Evercity's platform leverages Hedera Guardian to create a verifiable and immutable record of a project's environmental impact, from initial funding to the final reporting of outcomes, in order to provide trust and transparency to the sustainable finance market.
Upbit is cryptocurrency exchange based in South Korea with offices in Singapore, Indonesia, and Thailand. It is operated by Dunamu, a leading South Korean fintech company and is one of the the largest exchanges by trading volume on the Hedera network and in the south Asian market where it plays a crucial role in providing liquidity and accessibility for the Hedera blockchain network. Upbit is a primary on-ramp for the Hedera native cryptocurrency token, HBAR, through its secure, high-volume mobile apps offering real-time trading, diverse asset support, and robust security, especially in the South Korean cryptocurrency markets.
Upbit is known for its strong emphasis on security and regulatory compliance within South Korea's stringent framework. They have obtained numerous security certifications, including Personal Information and Information Security Management System (ISMS-P) and International Organization for Standardization / International Electrotechnical Commission (IOS/IEC), and employ advanced AI-driven fraud detection systems operated by dedicated anti-money laundering teams.