> a concrete implementation of the [specs-storage](https://github.com/filecoin-project/specs-storage) interface
The sector-storage project provides a implementation-nonspecific reference implementation of the [specs-storage](https://github.com/filecoin-project/specs-storage) interface.
## License
The Filecoin Project is dual-licensed under Apache 2.0 and MIT terms:
- Apache License, Version 2.0, ([LICENSE-APACHE](https://github.com/filecoin-project/sector-storage/blob/master/LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license ([LICENSE-MIT](https://github.com/filecoin-project/sector-storage/blob/master/LICENSE-MIT) or http://opensource.org/licenses/MIT)