diff --git a/bin/util/cr-cite-sdv.sh b/bin/util/cr-cite-sdv.sh
new file mode 100755
index 00000000..8d86eddd
--- /dev/null
+++ b/bin/util/cr-cite-sdv.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+#
+#3> <> prov:specializationOf <https://github.com/timrdf/csv2rdf4lod-automation/blob/master/bin/util/cr-cite-sdv.sh> .
+#3>    prov:wasDerivedFrom   <https://github.com/timrdf/csv2rdf4lod-automation/blob/master/bin/util/cr-sdv.sh> .
+#
+# Usage:
+#
+#   bash-3.2$ cr-pwd.sh
+#   source/epa-gov/fips-codes/version/2009-Apr-10
+#
+#   bash-3.2$ cr-cite-sdv.sh ../../../../census.gov/people/version/2021-09-18
+#
+#   bash-3.2$ ls -lt source/
+#   census.gov_people_2021-09-18.sdv ->  ../../../../census.gov/people/version/2021-09-18
+
+if [ "$1" == "--help" ]; then
+   echo "usage: `basename $0` [--slashes] [--fast] [--attribute-value]"
+#   echo "  --slashes         : output with slash delimiters instead of dashes (must preced --fast)"
+#   echo "  --fast            : use a faster technique to determine the 'sdv' value (e.g. .02 sec vs .7 sec)"
+#   echo "  --attribute-value : output cr-source-id= etc. format"
+   echo
+   echo "try also:"
+   echo "  cr-dataset-uri.sh --uri"
+   exit
+fi
+
+#echo "sdv $CSV2RDF4LOD_BASE_URI" >&2
+#if [ "$1" == "--attribute-value" ]; then
+#   echo cr-base-uri=${CSV2RDF4LOD_BASE_URI_OVERRIDE:-$CSV2RDF4LOD_BASE_URI} cr-source-id=`cr-source-id.sh` cr-dataset-id=`cr-dataset-id.sh` cr-version-id=`cr-version-id.sh`
+#   exit
+#elif [ "$1" == "--attribute-value--" ]; then
+#   echo --cr-base-uri=${CSV2RDF4LOD_BASE_URI_OVERRIDE:-$CSV2RDF4LOD_BASE_URI} --cr-source-id=`cr-source-id.sh` --cr-dataset-id=`cr-dataset-id.sh` --cr-version-id=`cr-version-id.sh`
+#   exit
+#fi
+
+#delim="-"
+#if [ "$1" == "--slashes" ]; then
+#   delim="/"
+#   shift
+#fi
+
+# Use cr-pwd.sh to determine sdv faster.
+# The slow way can take up to 3 seconds, while cr-pwd.sh takes 0.25 seconds.
+# is-pwd-a.sh takes another 0.25 seconds, so we'll skip the error checking since this is a core utility.
+
+CSV2RDF4LOD_HOME=${CSV2RDF4LOD_HOME:?"not set; source csv2rdf4lod/source-me.sh or see $see"}
+
+# cr:data-root cr:source cr:directory-of-datasets cr:dataset cr:directory-of-versions cr:conversion-cockpit
+#ACCEPTABLE_PWDs="cr:data-root cr:source cr:directory-of-datasets cr:dataset cr:directory-of-versions cr:conversion-cockpit"
+#if [ `${CSV2RDF4LOD_HOME}/bin/util/is-pwd-a.sh $ACCEPTABLE_PWDs` != "yes" ]; then
+#   echo `pwd` `cr-pwd.sh` `cr-pwd-type.sh` `${CSV2RDF4LOD_HOME}/bin/util/is-pwd-a.sh $ACCEPTABLE_PWDs`
+#   ${CSV2RDF4LOD_HOME}/bin/util/pwd-not-a.sh $ACCEPTABLE_PWDs
+#   exit 1
+#fi
+
+if [[ `is-pwd-a.sh cr:conversion-cockpit` == "yes" ]]; then
+   # e.g. pwd: /srv/twc-healthdata/data/source/hub-healthdata-gov/food-recalls/version/2012-May-08
+   # desired result: hub-healthdata-gov-food-recalls-2012-May-08
+
+   while [[ $# -gt 0 ]]; do
+      cockpit="$1" && shift
+      if [[ -d "$cockpit" ]]; then
+         ref=''
+         pushd "$cockpit" 2>&1 > /dev/null
+            if [[ `is-pwd-a.sh cr:conversion-cockpit` == "yes" ]]; then
+               ref=`cr-sdv.sh`.sdv
+            else
+               echo "ERROR: was $cockpit was not a cr:conversion-cockpit"
+            fi
+         popd 2>&1 > /dev/null
+
+         if [[ -n "$ref" ]]; then
+            mkdir -p source
+            ln -sf "$cockpit" "source/$ref"
+         else
+            echo "nopeno"
+         fi
+      else
+         echo "ERROR: $cockpit is not a computation cockpit"
+      fi
+   done
+
+else 
+
+   echo "must be in a cr:conversion-cockpit"
+fi
diff --git a/bin/util/is-pwd-a.sh b/bin/util/is-pwd-a.sh
index 51942eef..37672d54 100755
--- a/bin/util/is-pwd-a.sh
+++ b/bin/util/is-pwd-a.sh
@@ -42,20 +42,21 @@ is_a="no"
 while [[ $# -ge 1 && "$1" != "--id-of" ]]; do
    if   [[ $1 == "cr:directory-of-sources" || $1 == "cr:data-root"          ]]; then
        source=`basename \`pwd\``
-      if [[ "$source" == "source" ]]; then
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) ]]; then
          is_a="yes"
       fi
    elif [[ $1 == "cr:source"                                                ]]; then
        source=`basename \`cd ../          2>/dev/null && pwd\``
             s=`basename \`pwd\``
-      if [[ "$source" == "source" ]]; then
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) ]]; then
          is_a="yes"
       fi
    elif [[ $1 == "cr:directory-of-datasets"                                 ]]; then
        source=`basename \`cd ../../       2>/dev/null && pwd\``
             s=`basename \`cd ../          2>/dev/null && pwd\``
        dataset=`basename \`pwd\``                               # TODO: need to add that step in...
-      if [[ "$source" == "source" && "$dataset" == "dataset" ]]; then
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) && \
+              "$dataset" == "dataset" ]]; then
          is_a="yes"
       fi
    elif [[ $1 == "cr:dataset"                                               ]]; then
@@ -64,7 +65,7 @@ while [[ $# -ge 1 && "$1" != "--id-of" ]]; do
          # TODO: dataset/
             d=`basename \`pwd\``
                                                                 # TODO: need to add that step in...
-      if [[ "$source" == "source" ]]; then
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) ]]; then
          is_a="yes"
       fi
    elif [[ $1 == "cr:directory-of-versions"                                 ]]; then
@@ -74,7 +75,8 @@ while [[ $# -ge 1 && "$1" != "--id-of" ]]; do
             d=`basename \`cd ../          2>/dev/null && pwd\`` # TODO: need to add that step in...
       version=`basename \`pwd\``
             v=""
-      if [[ "$source" == "source" && "$version" == "version" ]]; then # TODO: need to add that step in...
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) && \
+              "$version" == "version" ]]; then # TODO: need to add that step in...
          is_a="yes"
       fi
    elif [[ $1 == "cr:version"              || $1 == "cr:conversion-cockpit" ]]; then
@@ -85,7 +87,8 @@ while [[ $# -ge 1 && "$1" != "--id-of" ]]; do
       version=`basename \`cd ../          2>/dev/null && pwd\``
             v=`basename \`pwd\``
 
-      if [[ "$source" == "source" && "$version" == "version" ]]; then
+      if [[ ( "$source" == "source" || "$source" == "agency" || "$source" == "sdv" ) && \
+               "$version" == "version" ]]; then
          is_a="yes"
       fi
    elif [[ "$1" == "cr:bone" || "$1" == "." ]]; then