55e75466a4
Fixes the change-size estimation bug that I fixed in #17290, though incompletely (Steven made up a size for the surjection proof which was different from the size that I made up....this time I actually checked with libsecp to get an upper bound.) He also found another place we were doing the wrong estimation, which I had missed on my pass. So between the two of us I think we've done some good. Also moves some which sets code coin_selection_params.tx_noinputs_size to after some Elements sanity checks, which I think will have zero observable effect (or non-observable effect) but it's part of the PR so I'm keeping it. Though updated since we can now use BnB even with subtract-fee-from-output. |
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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:
Additional RPC commands and parameters:
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