This Go module implements the bendy butt specification to encode and verify feed entries in that format and offers utility functions for creating and verifiying signed content entries as required by the meta feed spec.
This repository also offers JSON test vectors to assist in testing implementations in other languages.
See the 
The metamngmt Package offers helper types and functions to create the necessary types to manage the subfeeds of a metafeed.
To get the complete picture, read internal/vectors/gen_good_test.go which creates the testvector-metafeed-managment.json and goes through all the steps of creating feed entries and signing subfeeds.
Test vector generation is facilitated through Go's testing system.
To regenerate the vectors (e.g. after having changed vector generation ./internal/vectors),
run the go test command:
cd internal/vectors/
go test
(Alternatively: stand in the root of the repo and run go test ./internal/vectors/)
The code is licenses under MIT.
The test vectors are licensed under Creative Commons Attribution Share Alike 4.0.