diff --git a/_includes/devdoc/bitcoin-core/rest/requests/get_block-notxdetails.md b/_includes/devdoc/bitcoin-core/rest/requests/get_block-notxdetails.md
index 2c2d1a20..70c67b0b 100644
--- a/_includes/devdoc/bitcoin-core/rest/requests/get_block-notxdetails.md
+++ b/_includes/devdoc/bitcoin-core/rest/requests/get_block-notxdetails.md
@@ -85,7 +85,7 @@ GET /block/notxdetails/<hash>.<format>
 - n: "→<br>`versionHex`"
   t: "number (int)"
   p: "Required<br>(exactly 1)"
-  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal"
+  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal.  See [BIP9 assignments][]"
 
 - n: "→<br>`merkleroot`"
   t: "string (hex)"
diff --git a/_includes/devdoc/bitcoin-core/rest/requests/get_block.md b/_includes/devdoc/bitcoin-core/rest/requests/get_block.md
index 0d05ad69..e6856431 100644
--- a/_includes/devdoc/bitcoin-core/rest/requests/get_block.md
+++ b/_includes/devdoc/bitcoin-core/rest/requests/get_block.md
@@ -88,7 +88,7 @@ GET /block/<hash>.<format>
 - n: "→<br>`versionHex`"
   t: "number (int)"
   p: "Required<br>(exactly 1)"
-  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal"
+  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal.  See [BIP9 assignments]"
 
 - n: "→<br>`merkleroot`"
   t: "string (hex)"
diff --git a/_includes/devdoc/bitcoin-core/rest/requests/get_getutxos.md b/_includes/devdoc/bitcoin-core/rest/requests/get_getutxos.md
index 29f688bf..8d5b894c 100644
--- a/_includes/devdoc/bitcoin-core/rest/requests/get_getutxos.md
+++ b/_includes/devdoc/bitcoin-core/rest/requests/get_getutxos.md
@@ -35,7 +35,7 @@ GET /getutxos/<checkmempool>/<txid>-<n>/<txid>-<n>/.../<txid>-<n>.<bin|hex|json>
 - n: "Outpoint"
   t: "vector"
   p: "Required<br>(1 or more)"
-  d: "The list of outpoints to be queried. Each outpoint is the TXID of the transaction, encoded as hex in RPC byte order with an addditional `-n`"
+  d: "The list of outpoints to be queried. Each outpoint is the TXID of the transaction, encoded as hex in RPC byte order with an additional `-n` parameter for the output index (vout) number, with the index starting from 0"
 
 {% enditemplate %}
 
@@ -55,7 +55,7 @@ GET /getutxos/<checkmempool>/<txid>-<n>/<txid>-<n>/.../<txid>-<n>.<bin|hex|json>
 - n: "`result`"
   t: "object"
   p: "Required<br>(exactly 1)"
-  d: "The requetsted UTXO set"
+  d: "The requested UTXO set"
 
 - n: "→→<br>`chainHeight`"
   t: "number (int)"
@@ -70,7 +70,7 @@ GET /getutxos/<checkmempool>/<txid>-<n>/<txid>-<n>/.../<txid>-<n>.<bin|hex|json>
 - n: "→<br>`bitmap`"
   t: "number (int)"
   p: "Required<br>(exactly 1)"
-  d: ""
+  d: "Whether each requested output was found in the UTXO set or not.  A `1` is returned for those that were found and a `0` is returned for those that were not found.  Results are returned in the same order as outpoints were requested in the input parameters"
 
 - n: "→<br>`utxos`"
   t: "array"
@@ -186,4 +186,4 @@ Result (whitespaced added):
 
 * [GetTxOutSetInfo][rpc gettxoutsetinfo] RPC: {{summary_getTxOutSetInfo}}
 
-{% endautocrossref %}
\ No newline at end of file
+{% endautocrossref %}
diff --git a/_includes/devdoc/bitcoin-core/rest/requests/get_headers.md b/_includes/devdoc/bitcoin-core/rest/requests/get_headers.md
index 87fef48c..d90d0474 100644
--- a/_includes/devdoc/bitcoin-core/rest/requests/get_headers.md
+++ b/_includes/devdoc/bitcoin-core/rest/requests/get_headers.md
@@ -7,7 +7,7 @@ http://opensource.org/licenses/MIT.
 ##### GET Headers
 {% include helpers/subhead-links.md %}
 
-{% assign summary_restGetHeaders="returns a specified amout of block headers in upward direction." %}
+{% assign summary_restGetHeaders="returns a specified amount of block headers in upward direction." %}
 
 {% autocrossref %}
 
@@ -85,7 +85,7 @@ GET /headers/<count>/<hash>.<format>
 - n: "→→<br>`versionHex`"
   t: "string (hex)"
   p: "Required<br>(exactly 1)"
-  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal"
+  d: "*Added in Bitcoin Core 0.13.0*<br><br>This block's version number formatted in hexadecimal.  See [BIP9 assignments][]"
 
 - n: "→→<br>`merkleroot`"
   t: "string (hex)"
diff --git a/_includes/references.md b/_includes/references.md
index f343ada0..b3eb82f1 100644
--- a/_includes/references.md
+++ b/_includes/references.md
@@ -291,6 +291,7 @@ http://opensource.org/licenses/MIT.
 {% comment %}<!-- Official reference documents (BIPs should not use zero padding:
      BIP32 not BIP0032); alphabetical order -->{% endcomment %}
 [BIP9]: https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki
+[BIP9 assignments]: https://github.com/bitcoin/bips/blob/master/bip-0009/assignments.mediawiki
 [BIP14]: https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki
 [BIP16]: https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki
 [BIP21]: https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki