# Pinning Video Script

### What happens during upload
- What is a chunk ?
- Chunking process
- Swarm storage limits and Garbage collection

### What does pinning do
- storing copy of original chunks locally
- serving contents from the uploaded node only

### Use cases
- Enable developers to start build DApps on Swarm
- Storage of DApps and their assets in Swarm
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### What is Global Pinning

- Phase 2 of pinning
- Making pinned content accesable from any Swarm node
- The full story