signed_note

signed_note — C2SP signed notes and transparency log checkpoints for Elixir
Copyright 2026 Stanislav Yaglo

This product includes test vectors and test tooling derived from:

  * The Go Authors' golang.org/x/mod/sumdb/note
    (https://cs.opensource.google/go/x/mod), the reference implementation
    the C2SP signed-note specification was extracted from.
    Copyright (c) 2009 The Go Authors. All rights reserved. Licensed under
    the BSD 3-Clause License reproduced below.

    The fixed vectors in test/signed_note/go_vectors_test.exs (the
    PeterNeumann key, note, and the malformed-message and bad-key tables)
    are taken from its note_test.go. The differential driver in
    test/support/noteref links the package as a library; it is not
    distributed in the Hex package.

  * The C2SP specifications signed-note and tlog-checkpoint
    (https://c2sp.org), whose worked examples appear in the test suite.
    The C2SP repository is published under the BSD 3-Clause License.

Go BSD 3-Clause License
-----------------------

Copyright (c) 2009 The Go Authors. All rights reserved.

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contributors may be used to endorse or promote products derived from
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