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370: Clarify that modifiable flags are bits

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Andrew Chow 2022-06-13 12:21:42 -04:00
parent 5861862f59
commit 02ab2bfd79
1 changed files with 2 additions and 2 deletions
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@ -103,7 +103,7 @@ The new global types for PSBT Version 2 are as follows:
| None | None
| No key data | No key data
| <tt><8-bit uint></tt> | <tt><8-bit uint></tt>
| An 8 bit unsigned integer as a bitfield for various transaction modification flags. Bit 0 is the Inputs Modifiable Flag and indicates whether inputs can be added or removed. Bit 1 is the Outputs Modifiable Flag and indicates whether outputs can be added or removed. Bit 2 is the Has SIGHASH_SINGLE flag and indicates whether the transaction has a SIGHASH_SINGLE signature who's input and output pairing must be preserved. Bit 2 essentially indicates that the Constructor must iterate the inputs to determine whether and how to add or remove an input. | An 8 bit unsigned integer as a bitfield for various transaction modification flags. Bit 0 is the Inputs Modifiable Flag, set to 1 to indicate whether inputs can be added or removed. Bit 1 is the Outputs Modifiable Flag, set to 1 to indicate whether outputs can be added or removed. Bit 2 is the Has SIGHASH_SINGLE flag, set to 1 to indicate whether the transaction has a SIGHASH_SINGLE signature who's input and output pairing must be preserved. Bit 2 essentially indicates that the Constructor must iterate the inputs to determine whether and how to add or remove an input.
| |
| 0 | 0
| 2 | 2
@ -265,7 +265,7 @@ If it changes the transaction's locktime when there are existing signatures, it
If the Has SIGHASH_SINGLE flag is True, then the Constructor must iterate through the inputs and find the inputs which have signatures that use SIGHASH_SINGLE. If the Has SIGHASH_SINGLE flag is True, then the Constructor must iterate through the inputs and find the inputs which have signatures that use SIGHASH_SINGLE.
The same number of inputs and outputs must be added before those inputs and their corresponding outputs. The same number of inputs and outputs must be added before those inputs and their corresponding outputs.
A Constructor may choose to declare that no further inputs and outputs can be added to the transaction by setting the booleans in PSBT_GLOBAL_TX_MODIFIABLE to False or by removing this field entirely. A Constructor may choose to declare that no further inputs and outputs can be added to the transaction by setting the appropriate bits in PSBT_GLOBAL_TX_MODIFIABLE to 0 or by removing the field entirely.
A single entity is likely to be both a Creator and Constructor. A single entity is likely to be both a Creator and Constructor.