==BIP70 Extensions==

Add your extension below using tags starting at 1000 and submit a pull-req.

{|
| Field Number || Extension Name || Field Name || Payment Details Version || Description
|-
| 1000 || [[https://github.com/bitcoin/bips/blob/master/bip-0075.mediawiki|BIP0075]] || subtract_fee || 1 || If "true," indicates the sender can subtract the transaction fee from the requested amount. Otherwise, the transaction fee must be included separately from the requested amount.
|-
| 1001 || [[https://github.com/bitcoin/bips/blob/master/bip-0075.mediawiki|BIP0075]] || replace_by_fee || 2 || If "true," indicates the sender can enable the Replace By Fee flag for this transaction and the receiver will still consider it accepted with zero confirmations. Otherwise, RBF transactions will not be accepted by the receiver until they are confirmed.
|}