5. SpecsContent-addressed, authenticated, immutable data structures
9. go-ipld-primeGolang interfaces for the IPLD Data Model, with core Codecs included, IPLD Schemas support, and some handy functional transforms tools.
11. js-carContent Addressable aRchive format reader and writer for JavaScript
15. py-cidSelf-describing content-addressed identifiers for distributed systems implementation in Python