# Sources

2 pages in this book.

| Page | What it is for |
|---|---|
| [Pinning source text](/corpus/sources/pinning/) | Keep quoted fragments tied to the exact bytes of the source text, and find out which fragments no longer match. |
| [Editions and updates](/corpus/sources/editions-and-updates/) | Track source revisions and languages as separate editions, keep references to earlier editions, and see what consolidation of amendments covers today. |