# DuckDB database file (source: Source code) — file signature 44 55 43 4B at offset 8

For DuckDB database file (source: Source code), hex signature is 44 55 43 4B; offset is 8, verified against its source on 2026-09-22.

- **Hex signature:** 44 55 43 4B _(verified: appears in the quote below)_
- **Offset:** 8 _(verified: appears in the quote below)_
- **Format:** DuckDB database file (source: Source code) _(verified: appears in the quote below)_

## What the source says

> 44 55 43 4B | DUCK | 8 | | DuckDB database file (source: Source code) |

## Source

- https://en.wikipedia.org/wiki/List_of_file_signatures

Last verified: 2026-09-22. Review by: 2027-09-22.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).