BIPs 17, 18, 19, 20, 22, and 23: Add missing Copyright section

Author: luke-jr

bip-0017.mediawiki

@@ -11,6 +11,10 @@
 
 This BIP describes a new opcode (OP_CHECKHASHVERIFY) for the Bitcoin scripting system, and a new 'standard' transaction type that uses it to enables the receiver of bitcoins to specify the transaction type needed to re-spend them.
 
+==Copyright==
+
+This BIP is licensed under the BSD 2-clause license.
+
 ==Motivation==
 
 The purpose of pay-to-script-hash is to move the responsibility for supplying the conditions to redeem a transaction from the sender of the funds to the redeemer.

bip-0018.mediawiki

@@ -11,6 +11,10 @@
 
 This BIP modifies the basic format of transaction inputs and outputs, replacing the current scriptSig and scriptPubKey (scripts executed to validate a transaction) with new contents: dataSig, scriptCheck, and hashScriptCheck.
 
+==Copyright==
+
+This BIP is licensed under the BSD 2-clause license.
+
 ==Motivation==
 
 The purpose of pay-to-script-hash is to move the responsibility for supplying the conditions to redeem a transaction from the sender of the funds to the redeemer.

bip-0019.mediawiki

@@ -11,6 +11,10 @@
 
 This BIP proposes M-of-N-signatures required transactions as a new 'standard' transaction type using the existing scripting system without significant modifications.
 
+==Copyright==
+
+This BIP is licensed under the BSD 2-clause license.
+
 ==Motivation==
 
 Enable secured wallets, escrow transactions, and other use cases where redeeming funds requires more than a single signature.

bip-0020.mediawiki

@@ -12,6 +12,9 @@ BIP 0020 is based off an earlier document by Nils Schneider. '''And has been rep
 ==Abstract==
 This BIP proposes a URI scheme for making Bitcoin payments.
 
+==Copyright==
+This BIP is licensed under the BSD 2-clause license.
+
 ==Motivation==
 The purpose of this URI scheme is to enable users to easily make payments by simply clicking links on webpages or scanning QR Codes.
 

bip-0022.mediawiki

@@ -12,6 +12,10 @@
 This BIP describes a new JSON-RPC method for "smart" Bitcoin miners and proxies.
 Instead of sending a simple block header for hashing, the entire block structure is sent, and left to the miner to (optionally) customize and assemble.
 
+==Copyright==
+
+This BIP is licensed under the BSD 2-clause license.
+
 ==Specification==
 
 ===Block Template Request===

bip-0023.mediawiki

@@ -11,6 +11,10 @@
 
 This BIP describes extensions to the getblocktemplate JSON-RPC call to enhance pooled mining.
 
+==Copyright==
+
+This BIP is licensed under the BSD 2-clause license.
+
 ==Specification==
 
 Note that all sections of this specification are optional extensions on top of [[bip-0022.mediawiki|BIP 22]].