Transaction Science Open Standards
Copyright (c) 2026 Transaction Science, Inc.

This repository contains several open standards, each in its own
subdirectory. Each standard's subdirectory states its terms in its
LICENSE files. The Apache License, Version 2.0 in the root LICENSE file
applies to the files outside those subdirectories, such as scripts/,
tools/ and the root documents. The Apache License, Version 2.0 also
applies to:

  openpay/     — the OpenPay reference payment-acceptance stack.
  wai/         — WAI: its specification text (SPEC.md, extensions/,
                 REGISTRY.md), its conformance suite and its reference
                 implementation (wai/LICENSE). Third-party material
                 keeps its own terms; the TweetNaCl source in
                 wai/oer-conformance/settle/ is public domain. A corpus
                 input not made in this repository is described in its
                 corpus's provenance line or README, with its source
                 and licence where they are recorded.

The following subdirectories are licensed differently. See each
subdirectory's LICENSE file for the applicable terms:

  smart-byte/  — Creative Commons Attribution 4.0 International (CC-BY-4.0)
  eoc/         — Creative Commons Attribution 4.0 International (CC-BY-4.0)
  aac/         — reference code Apache-2.0 (aac/LICENSE); specification
                 text CC-BY-4.0 (aac/LICENSE-SPEC); and the language pack
                 DATA in aac/aac-rs/data/lang/ (and any copy an app serves
                 as public/lang/), which is NOT Apache-2.0: each pack is
                 CC BY-SA 4.0 or CC0 1.0 as stated in its header,
                 index.json and aac/aac-rs/data/lang/LICENSE.md, with the
                 attribution given there.

Third-party material under Creative Commons Attribution-ShareAlike 4.0
International (CC-BY-SA-4.0), adapted from Mulberry Symbols, OpenMoji and
Blissymbolics (BCI-AV); attribution and each set's conditions are in
aac/aac-rs/crates/aac-web/public/symbols/LICENSES.md:

  aac/aac-rs/crates/aac-web/public/symbols/*.svg
  aac/aac-rs/tools/symbols/review/*.png
  aac/aac-rs/tools/symbols/mapping-review.md

The wire format and the right to fork are public. Transaction Science
writes the reference implementation and runs the optional hosted
services — the protocols themselves are owned by no one.

See CHARTER.md for the stewardship pattern that applies to every
standard in this repository.