📅 Original date posted:2019-03-31 📝 Original message:one year seems too long. i think with the BIP-148 experience you have we could easily get there in 6 months at most. Luke Dashjr via bitcoin-dev <bitcoin-dev at lists.linuxfoundation.org> escreveu no dia segunda, 1/04/2019 à(s) 01:33: > > Certain parts of the community have been selling bitcoins for unreasonably > low prices. This has halted Bitcoin's valuation at $20k and even driven the > price down below $15k! However, clearly Bitcoin is worth much more than > that, and there is widespread support for higher prices. > > In light of this, I have written and implemented two BIPs: one to add a > signed price field to Bitcoin transactions, and the other to softfork a > minimum price of $50k USD/BTC a year from today. > > The BIPs are here, as well as included at the bottom of this email for > convenience: > github.com/luke-jr/bips/blob/softfork_50k/bip-usdprice.mediawiki > github.com/luke-jr/bips/blob/softfork_50k/bip-softfork-50k-price.mediawiki > > A reference implementation is here: > github.com/bitcoin/bitcoin/compare/v0.17.1...luke-jr:softfork_50k > > Please review ASAP so we can get these deployed in Bitcoin Core v0.18. > > Luke > > > <pre> > BIP: ? > Layer: Applications > Title: Signed USD Price Indicator > Author: Luke Dashjr <luke+bip at dashjr.org> > Comments-Summary: No comments yet. > Comments-URI: github.com/bitcoin/bips/wiki/Comments:BIP-???? > Status: Draft > Type: Standards Track > Created: 2019-04-01 > License: BSD-2-Clause > </pre> > > ==Abstract== > > This BIP proposes a method to explicitly specify and sign the USD/BTC price > for transactions. > > ==Copyright== > > This BIP is licensed under the BSD 2-clause license. > > ==Motivation== > > Certain parts of the community have been selling bitcoins for unreasonably low > prices. This has halted Bitcoin's valuation at $20k and even driven the price > down below $15k! However, clearly Bitcoin is worth much more than that, and > there is widespread support for higher prices. > > This problem can be fixed by setting a global minimum price for bitcoins. > Unfortunately, today, the consensus protocol is completely oblivious to the > price bitcoins are traded at. Therefore, we must first add a field to Bitcoin > transactions to indicate their price. > > ==Specification== > > ===New field and legal implication=== > > A new field is added to Bitcoin transactions. This field, if present, must > represent the honest and true USD/BTC rate used for the transaction. By > signing the transaction, the sender legally affirms this is the valuation of > bitcoins used for the transaction. > > For the avoidance of doubt: when the transaction is valued in a currency other > than USD, any reasonable exchange rate may be used to come up with the USD > valuation. > > ===Serialisation=== > > When serialising the transaction for any purpose, including signing, weight > calculation, and so on, the output count must be incremented by one. Prior to > the first real output, the following bytes must be inserted: > > * Constant: 00 00 00 00 00 00 00 00 > * A single byte, the size in bytes of the remainder of the inserted data > * Constant: 6a 04 55 53 44 24 > * A single byte, the size in bytes of the remainder of the inserted data > * The USD/BTC rate used for the transaction, in standard signed integer > serialisation, with all leading zeros removed (except as necessary to > preserve the sign bit). > > ==Backwards compatibility== > > ===Consensus=== > > The new price field is serialised as a dummy output, with a value of zero, and > a scriptPubKey that begins with OP_RETURN (6a). Existing nodes will ignore > this dummy output, and the leading OP_RETURN in the scriptPubKey ensures it > is never considered spendable. > > Therefore, current nodes will ignore the new field entirely, and accept > transactions using it. > > ===Wallets=== > > Existing wallets do not typically generate price indicators as specified. > Under this BIP, this absence of the field is perfectly acceptable. > > ==Reference implementation== > > github.com/bitcoin/bitcoin/compare/v0.17.1...luke-jr:usd_price_tx_field > > <pre> > BIP: ? > Layer: Consensus (soft fork) > Title: $50k USD/BTC Minimum Price > Author: Luke Dashjr <luke+bip at dashjr.org> > Comments-Summary: No comments yet. > Comments-URI: github.com/bitcoin/bips/wiki/Comments:BIP-???? > Status: Draft > Type: Standards Track > Created: 2019-04-01 > License: BSD-2-Clause > Requires: usdprice > </pre> > > ==Abstract== > > This BIP defines a minimum price of $50k USD/BTC for Bitcoin transactions. > > ==Copyright== > > This BIP is licensed under the BSD 2-clause license. > > ==Motivation== > > Certain parts of the community have been selling bitcoins for unreasonably low > prices. This has halted Bitcoin's valuation at $20k and even driven the price > down below $15k! However, clearly Bitcoin is worth much more than that, and > there is widespread support for higher prices. > > bip-usdprice defines a new field to indicate the price of transactions. Using > this, we can softfork to require a minimum transaction price. > > ==Specification== > > Beginning with block height 622370 (expected approximately 2020 April 1), a > block is reject as invalid unless all transactions it contains both declare a > USD/BTC price (as defined in bip-usdprice) and specify a price that is at a > minimum $50k USD/BTC. > > ==Backwards compatibility== > > As a soft fork, older nodes will continue to accept the blockchain without > modification. Non-upgraded nodes, however, will not validate the minimum > price requirement, and may accept invalid blocks if miners choose to make > them. Since transactions not declaring a price are at this time still > common-place, the softfork activation has been set a full year into the > future to ensure time to upgrade both nodes and wallet software. > > ==Reference implementation== > > github.com/luke-jr/bitcoin/compare/usd_price_tx_field...softfork_50k > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev at lists.linuxfoundation.org > lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev