Special implementation of Merkle mountain ranges (MMR) for Zcash!
The main design goals of this MMR implementation are
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Allow zero-cache and avoid db callbacks. As it is implemented, calling side must just smartly pre-load MMR nodes from the database (about log2(tree length) for append, twice as much for deletion).
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Reuse as much logic between rust and c++ clients and place it here and librustzcash.
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Close to zero memory consumption.
zcash_mmr is distributed under the terms of both the MIT
license and the Apache License (Version 2.0), at your choice.
See LICENSE-APACHE, and LICENSE-MIT for details.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in zcash_mmr by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.