Gregory Maxwell has asked the Bitcoin protocol development mailing list for proposed soft fork solutions to the attack before he proposes his own solution. BIP157 support for sending filters to light clients over the peer-to-peer (P2P) network protocol. However, the time warp attack allows miners representing a large fraction of the network hash rate to consistently lie about when blocks were created over a long period of time in order to lower difficulty even as blocks are being produced more frequently than once every 10 minutes. These timestamps are used to adjust the difficulty of mining blocks so that a block is produced on average every 10 minutes. This can allow P2P lightweight wallets to find blocks with transactions that affect their wallet much more privately than currently possible with BIP37 bloom filters. In theory, this could happen multiple times-two nodes could discover blocks simultaneously in the second round, deepening uncertainty about which chain is the legitimate one. Coinbase reported revenue of $707.9 million in the second quarter, beating estimates of $663 million, according to Refinitiv data.

Schnelli is also working with other developers to implement and test the NewHope key exchange protocol which is believed to be resistant to attacks by quantum computers so that an eavesdropper who records communication between two peers today won’t be able to decrypt that data in a future where they posses a fast quantum computer. 3’s featured news but also allow non-interactive signature aggregation which can allow for greater scalability by reducing the amount of signature data in the block chain (possibly by a very large percentage) and potentially enhancing privacy by implementing techniques for non-interactive coinjoins such as those described in the Mimblewimble paper. This week’s newsletter includes information about the first published release candidate for Bitcoin Core, news about BIP151 P2P protocol encryption and https://youtu.be/zTSU292SAZw a potential future soft fork, top questions and answers from Bitcoin Stack Exchange, and some notable merges in popular Bitcoin infrastructure projects. This week’s newsletter includes the usual dashboard and action items, a link to discussion about generalized Bitcoin contracts over Lightning Network, a briescriptription of a recently-announced library for scalability-enhancing BLS signatures, and some notable commits from the Bitcoin Core, LND, and C-Lightning projects.
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Notable commits this week in Bitcoin Core, LND, and C-lightning. NOINPUT flag, and several notable recent Bitcoin Core merges. Andrew Chow explains that not only can you pay a zero-value amount to an address or otscriptript, you can also spend from a zero-value output-but only if you find a miner who doesn’t use the default settings in Bitcoin Core. Now that you have created your account, you can begin to use it to trade cryptocurrency. For a nation, this is a smart trade. Although P2EP and Bustapay could end up being implemented by only a few wallets and services similar to the BIP70 payment protocol, there’s also chance they could end up being becoming as widely adopted as wallet support for BIP21 URI handlers. Bitcoin Stack Exchange is one of the first places Optech contributors look for answers to their questions-or when we have a few spare moments of time to help answer other people’s questions. 13799: Prior to the first Optech newsletter, a PR was merged that deliberately caused Bitcoin Core to abort startup if the configuration file or start-up parameters contained an option Bitcoin Core didn’t recognize. Probably for a future release, a mechanism for client compatibility will be implemented and the startup abort will be resto
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This new PR removes the startup abort and simply produces a warning. 1843: a configuration option intended only for testing (--noencryptwallet) has been renamed to --noseedbackup, been marked as deprecated, and had its help text updated and changed to mostly uppercase warning text. Doing so provides a number of benefits including easier code maintenance, better opportunities for testing individual components, and potentially more secure software if the wallet component is moved to its own process. The public key is the address of the wallet. Binance provides you with a public wallet address to send your funds. 14180 (Run all tests even if wallet is not compiled) are part of a long-term effort to disentangle the wallet code from the server code. Note that you can make a QR code with qrencode or an online generator if you're a true-blue normie. 1543: This PR continues work towards creating LN watchtowers that can assist light clients and other programs that aren’t online by monitoring for attempted channel theft and broadcasting the user’s pre-signed breach remedy transaction. These messages were implemented to make it easier for developers of lightweight clients to get feedback on connection and transaction relay problems.