130 / 600CSV

CHECKSEQUENCEVERIFY

An opcode enforcing a relative timelock measured from confirmation of the spent output.

An opcode enforcing a relative timelock measured from confirmation of the spent output.

An opcode enforcing a relative timelock measured from confirmation of the spent output. This coordinate is placed in the wider system through its protocol, economic and historical relationships.

Understanding CHECKSEQUENCEVERIFY helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.

01

Linked to related atlas coordinates

02

Grounded in a source record

03

Explains function and trade-offs

04

Part of the open Bitcoin knowledge graph

DOC · 001BIP112 — CHECKSEQUENCEVERIFYSpecification
Reviewed 25 July 2026Source-first · No investment advice