# Introduction to Verifiable Delay Functions (VDFs)

> An overview of Verifiable Delay Functions, a new cryptographic tool developed since 2018. Joseph Bonneau (a16z crypto research) covers applications, basic constructions, and open questions.

- URL: https://a16zcrypto.com/posts/videos/introduction-to-verifiable-delay-functions-vdfs
- Authors: joseph-bonneau
- Published: 2022-07-30
- Updated: 2025-01-29
- Focus areas: research
- Tags: cryptography, VDFs, video
- Format: videos

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An overview of Verifiable Delay Functions, a new cryptographic tool developed since 2018. Joseph Bonneau (a16z crypto research) covers applications, basic constructions, and open questions.

[Embedded media](https://www.youtube.com/embed/qf1CN5n8aHM?feature=oembed)

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Source: [Introduction to Verifiable Delay Functions (VDFs)](https://a16zcrypto.com/posts/videos/introduction-to-verifiable-delay-functions-vdfs) — a16z crypto. Full archive: https://a16zcrypto.com/posts