# Specification

- `DateKeys_Protocol_Specification_v0.8.2.md`: frozen copy of the normative
  draft v0.8.2 (28 September 2026) implemented by this module. SHA-256:
  `5cfa32034ea2ba02e77676e015cad7bba09796383afdda6634aaa017a5a23351`.
  v0.8.2 replaces v0.8.1 with a normative change to extensions, refined
  before release (error precedence, trust model, extension order, and rules
  the reference had applied without normative text), amended (the canonical
  encoding of BLS12-381 points and the tlock stanza body) and corrected in
  two rounds of a formal review (an invalid release from a network source,
  the objects and arrays where each extension may appear, which an encoder
  must respect, the serialization of GT in the tlock H2, and a single code
  for any failure of a release source), all recorded with their
  reproducible cases in the specification's §76.
- `datekeys.cddl`: the CBOR schemas of the specification as implemented, with
  the encoding rules CDDL cannot express.

The specification is licensed under the Creative Commons Attribution 4.0
International License (CC-BY-4.0): <https://creativecommons.org/licenses/by/4.0/>.
The code of this repository is licensed separately under Apache-2.0.

Changes to the specification follow its §76: a normative change should answer a
reproducible case found through the reference implementation, the CDDL, a
fixture, a mutation test, an interoperability test, fuzzing, a second
implementation or an external review.