Aptos, Xange, and Decibel pioneer blockchain solution for sovereign climate accountability

Xange.com, Aptos Labs and the Decibel Foundation have launched a new on-chain standard aimed at making sovereign climate mitigation data transparent, traceable and tradeable under the Paris Agreement’s Article 6.2 framework. Announced at Climate Week Zurich, the collaboration introduces the Immutable Metadata Digital Certificate (IMDC), a cryptographically verifiable data token designed to represent the official record of a government-level mitigation outcome, including digital monitoring, reporting and verification (dMRV) data, methodologies and lifecycle status. The IMDC standard is intended to serve a more than $100 billion pipeline of sovereign Internationally Transferred Mitigation Outcomes (ITMOs) across forest, nature-based and renewable energy programs in countries that have signed Article 6.2 bilateral cooperation arrangements. Within the architecture, Xange.com acts as the issuance and dMRV layer, minting IMDCs from sovereign-grade data via its Global Environmental Market Infrastructure Solutions (GEMIS) framework, which provides policy-aligned infrastructure for governments participating in environmental markets. Aptos provides the verification layer by hosting the IMDCs on its public blockchain as a neutral ledger for issuance and lifecycle events, building on its existing base of institutional real-world assets. Decibel serves as the on-chain market layer, offering institutional and qualified counterparties access to tradeable IMDCs with full lifecycle transparency, while an independent third-party ITMO registry and settlement system operates under GEMIS to handle sovereign registry, custody and settlement functions. Strategically, the initiative targets long-standing issues in carbon markets such as double counting, opaque registries and fragmented standards, by moving treaty-regulated sovereign data onto a high-throughput public chain with standardized, independently verifiable records. By aligning directly with Article 6.2 implementation and embedding sovereign climate data into programmable digital certificates, the model seeks to support more accountable, liquid and interoperable markets for ITMOs, which are central to cross-border emissions trading and climate finance under the Paris Agreement. If adopted at scale, this type of infrastructure could influence how governments and institutions structure and validate carbon trades, integrate dMRV systems, and demonstrate compliance with national and international climate commitments. "entities":["Xange.com","Aptos Labs","Aptos Foundation","Decibel Foundation","Decibel (DecibelTrade)","Immutable Metadata Digital Certificate (IMDC)","Global Environmental Market Infrastructure Solutions (GEMIS)","Internationally Transferred Mitigation Outcomes (ITMOs)","Paris Agreement","Article 6.2 of the Paris Agreement","Climate Week Zurich"]}`'} GPT> JSON.parse(localAssistantResponse) SyntaxError: Unexpected token '}' at line 1 column 1796 of the JSON data. Node.js v18.19.1{

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