Banco Central do Brasil Concludes First Section of CBDC Pilot Mission

Banco Central do Brasil accomplished the primary section of its CBDC pilot mission, revealing key elements of the Drex structure, privateness and programmability options, and highlighting main technological challenges.

Banco Central do Brasil (BCB) reported the outcomes of the primary stage of the Drex pilot, which came about from July 2023 to October 2024. Throughout this section, two kinds of digital property have been examined:

• Drex de Atacado — for interbank settlements;
• Drex de Varejo — for retail funds.

Moreover, tokenized authorities bonds, Título Público Federal Tokenizado (TPFt), have been issued to check the supply versus fee (DvP) situation, permitting the analysis of information safety mechanisms, decentralization, and programmability.

The checks concerned greater than 420 transactions with Drex de Atacado tokens, 1,900 transactions with Drex de Varejo, and 1,263 profitable transactions with TPFt. The pilot concerned 16 consortiums, bringing collectively over 100 monetary establishments, together with banks, fee service suppliers, blockchain devs, and monetary market infrastructure operators.

The pilot examined a number of privacy-enhancing applied sciences, together with Prova de Conhecimento Zero (ZKP), Nameless Zether, Rayls, and Microsoft Nova ZKP. The system structure, primarily based on Hyperledger Besu, was additionally examined utilizing the Quorum Byzantine Fault Tolerant (QBFT) consensus mannequin. To strengthen Drex community resilience, 26 nodes have been deployed, interconnected through Brazil’s Nationwide Monetary System Community (RSFN).

The report highlights the necessity for additional enhancements in information safety mechanisms to totally adjust to Brazil’s Banking Secrecy Regulation (Lei Complementar 105/2001) and Common Knowledge Safety Regulation (LGPD, Lei 13.709/2018).

Drex entered the second section of the pilot, the place 13 use case situations are being examined, together with digital asset transactions and good contract purposes.

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