BIP 171: Specify nonce support for "rate" mode

bip-0171.mediawiki

@@ -108,12 +108,14 @@ Parameters:
 * ''cp'' - Currency pair(s) for which rate is requested.
 * ''type'' - Type of exchange rate data being requested. May be "high", "low", "average", "typical", or any other arbitrary name. If omitted, the server may provide any rates it deems appropriate.
 * ''minrate'', ''maxrate'' - If specified, indicates this request is a longpoll. The server should not send a response until the rate(s) fall below or above (respectively) the provided value.
+* ''nonce'' - If specified, the server SHOULD return it in each result.
 
 Each currency-pair receives a separate result (a JSON Object) with all requested rate types:
 
 * ''cp'' - The currency-pair token.
 * ''time'' - The time (as a POSIX timestamp) the rate information is applicable to (should be approximately the request time).
 * ''rates'' - A JSON Object with each rate type provided as a key, and a Number as the value specifying the rate.
+* ''nonce'' - Only if the request specified a nonce, the server SHOULD include it here as a JSON String.
 
 Example: