5b9f316537
I really like this PR, but it wound up being pretty nontrivial to merge. The crux is that it pulls PSBT signing logic into scriptpubkey manager, which is where it belongs, but for us this means reasoning about pegins inside script/sign.cpp. However, sign.cpp is part of libbitcoin_common, which does not include anything for reasoning about PoW or RPC (lol) or anything heavy about that. This means that some pegin validation had to remain split between the wallet/rpc layer and sign.cpp. I added a new file script/pegins.cpp which has the (one) method we actually need in sign.cpp. Aside from that, this diff is very large but is mostly just moving our code changes to wallet/psbtwallet.* into wallet/wallet.* where those functions now live. As far as review, it's probably not worthwhile to spend too much too much time on this since it's going to be change again in #16528 and others. The test coverage is pretty extensive. |
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Elements Project blockchain platform
This is the integration and staging tree for the Elements blockchain platform, a collection of feature experiments and extensions to the Bitcoin protocol. This platform enables anyone to build their own businesses or networks pegged to Bitcoin as a sidechain or run as a standalone blockchain with arbitrary asset tokens.
Modes
Elements supports a few different pre-set chains for syncing. Note though some are intended for QA and debugging only:
- Liquid mode:
elementsd -chain=liquidv1(syncs with Liquid network) - Bitcoin mainnet mode:
elementsd -chain=main(not intended to be run for commerce) - Bitcoin testnet mode:
elementsd -chain=testnet3 - Bitcoin regtest mode:
elementsd -chain=regtest - Elements custom chains: Any other
-chain=argument. It has regtest-like default parameters that can be over-ridden by the user by a rich set of start-up options.
Confidential Assets
The latest feature in the Elements blockchain platform is Confidential Assets, the ability to issue multiple assets on a blockchain where asset identifiers and amounts are blinded yet auditable through the use of applied cryptography.
- Announcement of Confidential Assets
- Confidential Assets Whitepaper to be presented April 7th at Financial Cryptography 2017 in Malta
- Confidential Assets Tutorial
- Confidential Assets Demo
- Elements Code Tutorial covering blockchain configuration and how to use the main features.
Features of the Elements blockchain platform
Compared to Bitcoin itself, it adds the following features:
- Confidential Assets
- Confidential Transactions
- Federated Two-Way Peg
- Signed Blocks
- Additional opcodes
Previous elements that have been integrated into Bitcoin:
- Segregated Witness
- Relative Lock Time
Elements deferred for additional research and standardization:
License
Elements is released under the terms of the MIT license. See COPYING for more information or see http://opensource.org/licenses/MIT.
What is the Elements Project?
Elements is an open source, sidechain-capable blockchain platform. It also allows experiments to more rapidly bring technical innovation to the Bitcoin ecosystem.
Learn more on the Elements Project website
https://github.com/ElementsProject/elementsproject.github.io