Binance Futures trading attracts a basic fee of 0.02% for makers and 0.04% for takers. The final settlement price of CME bitcoin futures is determined by prices on four exchanges, Bitstamp, Coinbase, itBit and Kraken. ● Hardcoded previous soft fork activation blocks: the heights of the blocks where two previous soft forks activated have now been hardcoded into Bitcoin Core as the point where those forks activate. ● Minimum transaction size discussion: Thomas Voegtlin posted to the Bitcoin-Dev mailing list about creating transactions with stripped sizes (non-witness sizes) as small as 60 bytes. This week, developer w0xlt posted to the Bitcoin-Dev mailing list a tutorial for creating silent payments for the default signet using a proof-of-concept implementation for Bitcoin Core. Instead, Fournier suggests that the thousands of possible states be created using CTV in a tapleaf which commits to the outputs to put onchain. Theoretically, is it possible for a mainnet chain that has taproot never-active or active at a different block height to exist? Her email provides background on the current policy, enumerates several problems discovered with it over the years (such as pinning attacks), examines how the policy affects wallet user interfaces, and then describes several possible improvements.
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After an exchange changed a user’s P2TR (native segwit v1) taproot withdrawal address into a P2WSH (native segwit v0) address due to lack of taproot support, the user asks if there is a way to claim the bitcoins in the resulting v0 output. Once you verify the account, you move to level 2, which gives you deposit and withdrawal limit increases. EVICT received a moderate amount of discussion on the mailing list as of this writing, with no major concerns noted but also roughly the same seemingly low level of enthusiasm which greeted the TLUV proposal last year. CAT. Hopefully the discussion will be able to settle the major unresolved issues related to noinput and help get this proposal on track for inclusion in a subsequent soft fork. She reports that the main concept discussed was attempting to bound the maximum amount of resources used for relaying transactions and their replacements, such as by limiting the number of related transactions that get relayed within a certain amount of time
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EVICT were added in a soft fork, each member of the group could share a public key with the other members along with a signature for that key over an output paying the member the expected amount (e.g. 1 BTC for Alice, 2 BTC for Bob, etc). But, if user Dan becomes unavailable or malicious, the only way for Alice, Bob, and Carol to maintain the privacy and efficiency advantages of remaining part of the joinpool is to have prepared in advance with Dan a tree of presigned transactions-not all of which need to be used, but all of which need to be ready to use to ensure complete fault tolerance. Rubin suggests that this would eliminate many problems with CPFP and RBF fee bumping related to contract protocols where two or more users shared ownership of a UTXO, or other cases where the use of presigned transactions meant the current network feerates couldn’t have been known when the transaction was signed in the past. In particular, O’Beirne is concerned that some of the transaction relay policy changes being proposed will complicate the use of fee bumping for users and wallet develope
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Since anchor outputs-style fee bumping works via CPFP, users will need to keep UTXOs available in their bitcoind wallet. ● Muun wallet supports taproot: Muun wallet enabled taproot address support after activation occurred, including the ability for users to default to taproot receive addresses. ● Eviction outputs: for the one output to Dan in this example, the data would provide its index position and Dan’s signature for youtu.be it. The heuristic used is a "many-to-one" transaction: a transaction with at least 3 inputs and exactly 1 output. TXHASH. The new opcode would make serialized fields from a spending transaction availascript a tapscript. FOLD opcode as a way to allow loop-like behaviorscripttcoin Script. ● How can the genesis block contain arbitrary datascript if the script is invalid? ● Using Chia Lisp: Anthony Towns posted about adding to Bitcoin a variation on Chia Lisp, which is a dialect of Lisp designed for the Chia altcoin. ● BTCPay Server 1.4.2 is the latest release in the new 1.4.x series, which includes improvements in login authentication and a number of user interface improvements. Pieter Wuille notes that those bitcoins are not retrievable since the user wouscriptd to find a script that hashes to the public key in the P2TR address, a computationally infeasible operation.