--- title: "Guardian" id: "373" type: "page" slug: "guardian" published_at: "2025-10-09T21:43:39+00:00" modified_at: "2026-11-09T15:33:35+00:00" url: "https://hedera.com/product/guardian/" markdown_url: "https://hedera.com/product/guardian.md" excerpt: "guardian | open-source digital mrv From methodology to verified credit Guardian is open-source software that turns environmental methodologies into digital workflows. Project developers, auditors, standards bodies and buyers work from one shared, auditable record, so every claim can be traced..." --- guardian | open-source digital mrv # From methodology to verified credit Guardian is open-source software that turns environmental methodologies into digital workflows. Project developers, auditors, standards bodies and buyers work from one shared, auditable record, so every claim can be traced back to its data. [Official Hedera Guardian documentation](https://guardian.hedera.com/) sustainable impact studios ## Four studios, scaling impact Open-source studios support the entire project lifecycle, from origination to financing and from issuance to retirement, helping prove environmental claims along the way. They digitize the methodology, issue and track the asset, finance the project, and prove where the money went. Each works on its own, and they are built to work together on Hedera. Methodology and dMRV ### Hedera Guardian Digitize methodologies and prove every claim Guardian is a digital operating framework for methodology digitization and integrated measurement, reporting, and verification. Standardized forms, automated workflows, and connected data streams link projects, auditors, corporates, and standards bodies into a single auditable record. Teams have used it to build the world’s largest open-source library of digitized methodologies, spanning carbon credits, biodiversity, renewable energy, and emissions tracking. - **Digitizes methodologies**Turns 100+ page environmental protocols into standardized digital workflows. - **Connects stakeholders**Project developers, auditors, corporates, and standards bodies work from one shared record. - **Proves integrity**Every dataset and decision is auditable and traceable from source to claim. Registry infrastructure ### Carbon Registry Government-grade registry infrastructure, open to any country The National Carbon Registry is an open-source registry system initiated by UNDP as a Digital Public Good, so countries and standards bodies can manage carbon projects, credits, issuances, transfers, and retirements without building proprietary infrastructure from scratch. Running on Hedera, it anchors every data event to a public ledger and links it to digital MRV flows in Guardian, creating a provable chain of custody for carbon units. - **Article 6.2 ready**Tracks corresponding adjustments, international transfers, and reporting in UNFCCC formats. - **Sovereign control**Countries decide who can register projects, approve issuances, or link to carbon credits. - **No licensing fees**Open-source code any country or standard can adopt, extend, or integrate into existing systems. Sustainable finance ### ATS for Sustainable Finance Turn static sustainable bonds into programmable assets The Asset Tokenization Studio transforms sustainable bonds, typically illiquid and manually administered, into transparent and programmable digital instruments. Its Asset Smart Contract encodes contractual terms and compliance rules as executable logic, enabling automated lifecycle actions, real-time ownership tracking, and secure integration with verified ESG oracles. The result is a fractionalizable digital asset built for institutional capital markets. - **KPI-linked rates**Oracle-verified KPI data attested through Guardian triggers interest-rate adjustments or penalties automatically. - **Compliance as code**Whitelisting of authorized investors and eligible projects is enforced on-chain across the asset lifecycle. - **Market liquidity**Securities-leg settlement for trades executed on external secondary-market platforms. Fund management ### Treasury module Prove where the proceeds went The Treasury Module solves the black box problem in sustainable finance: the lack of visibility and verifiable control over how bond proceeds are allocated and managed. It replaces opaque SPV and asset-manager structures with a smart-contract-governed treasury, executing and recording every fund movement and project allocation on-chain across the bond’s entire lifecycle. - **Controlled disbursement**Funds move only to pre-approved project wallets, managed in regulated stablecoins. - **Unified custody**Financial returns and environmental assets such as carbon credits and forwards are tracked in one place. - **Real-time audit trail**Immutable evidence of fund allocation and asset custody for investors and regulators. key differentiators ## The Guardian difference #### Trust and transparency Guardian records every step of the sustainability data lifecycle on Hedera, making the process tamper-evident and transparent to all stakeholders, from regulators to end customers. #### Comparable, auditable data Guardian structures project data to the methodology it follows, so every claim traces back to its source. Gaps, inconsistencies and differences between projects become visible, helping auditors, and the AI tools they use, flag issues sooner. #### Cut time to issuance Guardian automates the issuance of digital environmental assets, improving trust while reducing the time and cost involved in issuing, reporting, and verifying carbon assets. modular and customizable ## Open-source toolkit for digital MRV As a Digital Measurement, Reporting and Verification (dMRV) tool, Guardian enables trusted tokenization of sustainability assets. Organizations can extend or adapt the platform for use cases like supply chain emissions tracking, green bonds, or renewable energy certification. standards and registries ## Built with the bodies that set the standards Verra, Gold Standard and UNDP’s National Carbon Registry all work with Guardian, so project data can move from methodology to verification to registry in one traceable format. case study ## Verra chooses Hedera as its chain of record Verra, the world’s largest carbon credit standards body, is using Hedera to anchor trusted environmental data. By integrating the Blue Carbon (ABC) Mangrove Restoration Project in Senegal through Hedera, Verra is helping eliminate inaccurate, fragmented data and prevent premature or unsupported claims. [Read More](/case-study/verra) ## Learn more about Guardian [https://github.com/hashgraph/guardian](https://github.com/hashgraph/guardian) guardian resources Featured resources [#](#) [#](#) [View All](/case-studies) methodology digitalization **Methodology Digitalization Handbook** A comprehensive guide for transforming environmental methodologies from PDF documents into fully functional, automated policies on the Guardian platform. This handbook provides step-by-step instructions, best practices, and real-world examples for every aspect of the digitization process. [Read handbook](https://guardian.hedera.com/docs/3.7.0/methodology-digitalization/methodology-digitization-handbook) video interview **Decentralized, transparent solutions to transform energy creation and use** Watch Rebecca Hofmann of Blockchain For Energy (B4E) explain how the consortium of major energy companies is transforming the industry through collaboration and innovation. Their flagship B4ECarbon platform built on Hedera is pioneering transparent, end-to-end systems for carbon monitoring, reporting, and verification (dMRV). [Watch Video](https://youtu.be/dgOjJXSp67Q?si=_byckP_-mJ9qHukK) dashboard **Sustainability at scale** This dashboard shows how Hedera’s energy-efficient infrastructure and world-class governance deliver sustainability at scale – maintaining verified carbon-negative operations. [Learn More](/use-cases/sustainability/) blog **Hedera Guardian 3.0 – sustainability for enterprise** The latest Guardian release transforms digital Monitoring, Reporting, and Verification (dMRV) with rule-based workflows, real-time analytics, and enterprise-grade security – empowering organizations to build verifiable, transparent, and scalable sustainability solutions on Hedera. [Read Blog](https://hedera.com/blog/hedera-guardian-3-0-sustainability-for-enterprise) success stories Who is building on Guardian [#](#) [#](#) [View All](/case-studies) Managed services to scale climate impact Discover how DOVU OS is powering verifiable carbon markets and AI-driven sustainability systems. [Case Study](/case-study/dovu/) Enabling environmental claim monetization Discover how a non-profit industry consortium of major players in the energy sector, including Chevron, ExxonMobil, Repsol, and others, drives carbon emissions management. [Case Study](/case-study/blockchain-for-energy) Tracking every credit end to end In partnership with the state of Virginia, Water Ledger built SWaN on Hedera – giving mitigation and nutrient credit market regulators, asset owners, and brokers one real-time, auditable ledger. It became operational with Virginia DEQ in January 2026. [Read More](/case-study/waterledger/) ecosystem ## Sustainability ecosystem Guardian integrates with third-party providers, offering tools and services for the next generation of sustainability solutions. see what others are saying Trusted for the real world [#](#) [#](#) [View All](/case-studies) This collaboration represents a significant advancement in Verra’s digitalisation strategy, enhancing our ability to deliver more efficient, transparent, and scalable climate action. Integrating Hedera Guardian with the Verra Project Hub represents a meaningful step toward improving the way we serve our stakeholders. Mandy Rambharos CEO [Read More](/case-study/verra) Hedera provides the network bandwidth and low-costs that B4E requires to process the amount of data needed to tokenize robust environmental claims. This is critical for the scaling required for industry-wide adoption. Rebecca Hofmann CEO [Read More](/case-study/blockchain-for-energy) By combining the strengths of EcoRegistry with the advanced capabilities of Hedera Guardian, we are setting new standards for transparency and accountability in carbon trading. Juan Durán CEO [Read More](/case-study/ecoregistry/) ## Discover why innovators trust Guardian for sustainability Thanks — your submission has been received. Sorry, something went wrong submitting the form. Please try again, or email us if the problem continues.