// Deterministic bitcoin commitments library.
//
// SPDX-License-Identifier: Apache-2.0
//
// Written in 2019-2023 by
//     Dr Maxim Orlovsky <orlovsky@lnp-bp.org>
//
// Copyright (C) 2019-2023 LNP/BP Standards Association. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! ScriptPubkey-based OP_RETURN commitments.
//!
//! **Commit:**
//! a) `Msg -> ScriptPubkey`;
//! b) `Msg -> TxOut`;
//! c) `Msg -> (psbt::Output, TxOut)`;
//! **Convolve-commit:**
//! d) `Tx, Amount, Msg -> Tx'`;
//! e) `Psbt, Amount, Msg -> Psbt'`.