PDP (Proof of Data Possession)

PDP is a challenge-response protocol that lets applications verify storage providers still hold specific data without re-downloading it. It is a core component of Filecoin Onchain Cloud (FOC), where it powers the verification layer for FWSS and Filecoin Pay.

Table of contents

• About PDP — how the protocol works, when to use it, and what it replaces
• Install and run PDP — set up a PDP-enabled storage provider with Lotus, YugabyteDB, and Curio