Fuente: WIPO "sustainability" A method for monitoring and verifying sustainability practices via blockchain includes: storing, in a blockchain, a smart contract; receiving a data message including a wallet identifier, one or more sustainability metrics, and authentication data; validating the data message using the authentication data; performing a generation process to generate and add a first new block to the blockchain that includes the wallet identifier and the sustainability metrics, wherein the smart contract self-executes upon detecting the wallet identifier and sustainability metrics added to the blockchain, and self-execution of the smart contract comprises the performing of the generation process by the smart contract to add a second new block to the blockchain that includes a verifiable attestation for an entity associated with the wallet identifier indicative that the entity has satisfied one or more sustainability guidelines based on the one or more sustainability metrics.