
HashLog
Hashlog is a data verification service that leverages the Hedera Consensus Service (HCS) to create immutable events or data logs. It enables applications and enterprises to submit messages to the HCS, where each message receives a consensus timestamp from the Hedera network, ensuring its integrity and order. This process provides a secure and transparent "proof-of-action" or "proof-of-event" capability.
Its core functionality offers a data trail for on-chain information. Once data is logged via Hashlog to the HCS, it cannot be altered or retrospectively tampered with, providing a high degree of data integrity. This is particularly useful for use cases requiring regulatory compliance, dispute resolution, or the tracking of critical operational processes. Developers integrate Hashlog systems using APIs or SDKs.
By utilizing Hedera, Hashlog provides decentralized trust, cryptographic verification, and public accessibility (if desired) for the logged information. Its applications span across multiple domains, including supply chain management for tracking goods, IoT data streams for device event verification, and legal tech for timestamping documents.
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Carbon Central, developed by Australian tech firm NoviQTech, is an enterprise-grade software platform designed to help large organizations manage the complexities of carbon accounting and environmental, social, and governance (ESG) reporting. The platform provides a unified, end-to-end solution for companies to measure, analyze, and report on their environmental footprint, particularly their Scope 1, 2, and 3 carbon emissions. It aims to replace disparate spreadsheets and manual data collection methods with a single, auditable system of record.
The platform is built on the Hedera network, leveraging its technology to bring a high level of integrity and trust to the ESG data management process. A key feature of Carbon Central is its use of the Hedera Consensus Service (HCS) to create an immutable and verifiable audit trail. As enterprises input emissions data, supplier information, and other critical ESG metrics into the platform, a cryptographic hash of that data is submitted to the Hedera public ledger. This process provides a tamper-proof timestamp and a transparent, auditable record that can be securely shared with and verified by regulators, investors, and other stakeholders.

EarthID is a UK-based company founded in 2018 that has developed a decentralised identity and verifiable credentials platform. The company's mission is to combat identity fraud, enhance data privacy, and build customer trust in an increasingly digital world.
The core of EarthID's service is a platform that enables organizations to issue and verify digital credentials in a secure and frictionless manner. This includes solutions for Digital KYC, which streamlines customer onboarding, and passwordless authentication, which enhances security by removing the need for traditional passwords. The platform is designed to be compliant with global data regulations including GDPR.
EarthID's platform is built on the Hedera network and uses the Hedera Consensus Service (HCS) to create an immutable and auditable log of all identity-related transactions, ensuring a high level of trust and transparency. The integration with Hedera is fundamental to EarthID's ability to offer a scalable and secure decentralised identity solution that can be used by organizations and individuals around the world.

IOWNME is a platform developed by IPrivata, a company focused on data privacy and digital rights. Its designed to provide individuals with a way to assert ownership and control over their personal data, particularly in the context of name, image, and likeness (NIL) rights for athletes.
The core of the IOWNME service is the platform’s Declaration Certificate, a legally-grounded digital certificate that establishes a root proof of authenticity for an individual's data. This certificate links the rights embedded in a patent to an individual's personal information, effectively transforming the enforcement of data privacy from a matter of privacy policy to one of property rights, intellectual property, and contract law. This provides a more robust and proactive framework for individuals to protect and monetize their personal brand and content.
The IOWNME platform is built on the Hedera network. IPrivata is working directly with the Hedera Foundation and Acoer, a DLT developer, to integrate the Declaration Certificate into the Hedera ecosystem.

OneSpan is a Web3 platform that offers a dedicated eClosing solution designed to digitize and secure the entire lifecycle of high-value digital agreements, particularly in the mortgage and lending industries. The platform streamlines the closing process by enabling remote online notarization (RON), electronic signatures, and identity verification, all within a secure and compliant digital environment. A central component of this solution is the OneSpan eVault, a specialized repository for managing the authoritative copy of critical digital documents, such as promissory notes (eNotes).
To provide an unparalleled level of trust and auditability, OneSpan has integrated its platform with ProvenDB, a data integrity service built on the Hedera network. When a document is signed or a key milestone is reached in the eClosing process, a cryptographic fingerprint (hash) of the agreement is anchored to the Hedera public ledger. This action, facilitated by ProvenDB, creates a permanent and immutable timestamped record on the Hedera Consensus Service (HCS).
