## Blockchain Consensus Mechanisms: A Primer for Supervisors

_FinTech Notes, January 26, 2022_

## Source details

**Canonical URL:** [Blockchain Consensus Mechanisms: A Primer for Supervisors](https://www.imf.org/en/publications/fintech-notes/issues/2022/01/25/blockchain-consensus-mechanisms-511769)

## Other formats

- [Markdown version](/en/publications/fintech-notes/issues/2022/01/25/blockchain-consensus-mechanisms-511769/index.md)
- [Structured JSON version](/en/publications/fintech-notes/issues/2022/01/25/blockchain-consensus-mechanisms-511769/index.json)
- [Bundle manifest](/en/publications/fintech-notes/issues/2022/01/25/blockchain-consensus-mechanisms-511769/bundle-manifest.json)

## Bibliographic details
- Authors: Parma Bains
- Published: January 26, 2022
- Series: FinTech Notes
- DOI: https://doi.org/10.5089/9781616358280.063

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### Summary and Purpose
- Technology plays an increasingly important role in financial services.
- New technology can generate efficiencies for firms, lowering costs that can be passed on to end users.
- New technology can increase access to financial services and products for consumers, particularly the most vulnerable.
- New technology can also create new risks and unintended consequences that can harm financial stability, consumer protection, and market integrity.
- This primer is designed for financial supervisors at central banks, regulatory authorities, and government departments.
- The primer summarizes key aspects of popular consensus mechanisms at a high level, with a specific focus on how such mechanisms may impact the mandates of supervisors and policymakers when deployed in financial services markets.
- It could also help inform IMF staff on policy development and technical assistance related to crypto assets, stablecoins, and blockchains.

### Key Themes and Topics Covered
- Blockchain and DLT
- Economic sectors and financial services
- Financial crises considerations
- Technological innovation and fintech
- Virtual currencies and crypto assets
- Consensus mechanisms (including proof-of-stake and proof-of-work)
- BigTech and bitcoin mining
- Central bank digital currencies and stablecoins
- Supervisory and policy implications for deployment of consensus mechanisms in financial markets

### Intended Audience and Use
- Financial supervisors at central banks, regulatory authorities, and government departments.
- IMF staff involved in policy development and technical assistance on crypto assets, stablecoins, and blockchains.

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## Content in this bundle

- **Blockchain Consensus Mechanisms**
  - [Blockchain Consensus Mechanisms (Markdown version)](/-/media/files/publications/ftn063/2022/english/ftnea2022003.pdf.md){rel="alternate" type="text/markdown"}
  - [Blockchain Consensus Mechanisms (PDF)](/-/media/files/publications/ftn063/2022/english/ftnea2022003.pdf){rel="external" type="application/pdf"}

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_Source: https://www.imf.org/en/publications/fintech-notes/issues/2022/01/25/blockchain-consensus-mechanisms-511769_