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.

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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. 

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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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Coinomi is a multi-asset cryptocurrency wallet launched in 2014, making it one of the oldest multi-chain wallets available. It offers a non-custodial solution giving users full control over their private keys. Coinomi is designed to support a multitude of digital assets including over 1,770 cryptocurrencies and tokens across more than 125 blockchains, including major names like Bitcoin, Ethereum, and Solana, as well as numerous altcoins and tokens.

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It is available on both mobile (iOS and Android) and desktop (Windows, macOS, Linux) platforms. Key security features include strong wallet encryption with hierarchical deterministic (HD) backups featuring BIP44 algorithmic security. For privacy, Coinomi eschews know-your-customer requirements for accessing funds and records no IP associations, identity linking, or transaction tracking. Furthermore, its servers anonymize user requests by default.

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The Coinomi wallet integrates built-in cryptocurrency exchange services through partnerships with platforms including Changelly and ShapeShift, allowing users to swap between different assets directly within the app. It also supports SegWit for Bitcoin and other compatible coins, enabling faster confirmations and lower transaction fees. Its services are free to use (users only pay standard network transaction fees to miners). 

Blockchain for Energy (B4E) is a non-profit, member-led consortium dedicated to driving digital transformation within the energy sector. Comprising major energy companies including Chevron, ExxonMobil, and Repsol, B4E was established to collaboratively develop and implement blockchain-based solutions that can enhance efficiency, reduce costs, and increase transparency across the industry.

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The consortium's flagship product is the B4ECarbon platform, an advanced digital measurement, reporting, and verification (dMRV) solution. This platform integrates AI and IoT with distributed ledger technology to provide a secure and auditable system for managing emissions data. It enables energy operators to track, report, and verify their environmental performance in near real-time, helping to prevent greenwashing and ensure compliance with global standards. The B4E Network & Platform, built on Hyperledger FireFly, serves as the foundational layer connecting all of the consortium's solutions in a decentralised environment governed by its members.

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The B4ECarbon platform is built on the Hedera public network, and has been a member of the Hedera Governing Council since June 2025.

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The eftpos solution by Australian Payments Plus provides a cost effective, secure and flexible payment infrastructure for Australian businesses. It supports real time debit transactions, tap to pay on mobile devices, eftpos QR payments and least cost routing, which allows merchants to automatically direct debit transactions through the lowest cost network to help reduce the cost of acceptance.

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Australian Payments Plus has worked with Google to enable least cost routing in Google Wallet, with ANZ and Suncorp the first issuers to offer this capability. It is also partnering with Giesecke and Devrient to develop eftpos Click to Pay with integrated least cost routing, an online checkout service that uses tokenisation to protect card credentials and is scheduled for rollout from early 2026 following pilot trials.

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These developments enhance payment efficiency, improve security, support domestic data sovereignty and align with Reserve Bank of Australia findings that least cost routing can materially reduce merchant debit acceptance costs.

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