diff --git a/lib/imc_channel.hpp b/lib/imc_channel.hpp
index 83cb7cc..01637ef 100644
--- a/lib/imc_channel.hpp
+++ b/lib/imc_channel.hpp
@@ -119,7 +119,8 @@ namespace imc
     // collect meta-data of channels according to env,
     //  just everything valueable in here
     std::string uuid_;
-    std::string name_, comment_, origin_, text_;
+    std::string name_, comment_;
+    std::string origin_, origin_comment_, text_;
     std::string yname_, yunit_;
     std::string xname_, xunit_;
     double xstepwidth_;
@@ -214,6 +215,14 @@ namespace imc
         comment_ = blocks->at(chnenv_.CNuuid_).get_parameter(prms[8]);
         // group_index_ = std::stoi(blocks->at(chnenv_.CNuuid_).get_parameter(prms[2]));
       }
+
+      // extract associated NO data
+      if ( blocks->count(chnenv_.NOuuid_) == 1 )
+      {
+        prms = blocks->at(chnenv_.NOuuid_).get_parameters();
+        origin_ = blocks->at(chnenv_.NOuuid_).get_parameter(prms[4]);
+        origin_comment_ = blocks->at(chnenv_.NOuuid_).get_parameter(prms[6]);
+      }
     }
 
     // get info string
diff --git a/src/main.cpp b/src/main.cpp
index 9f30ac2..80b0bfb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -170,12 +170,12 @@ int main(int argc, char* argv[])
       return 1;
     }
 
-    // list blocks
-    for ( imc::block blk: imcraw.blocks() )
-    {
-      // std::cout<<blk.get_key().get_info()<<"\n";
-      std::cout<<blk.get_info()<<"\n";
-    }
+    // // list blocks
+    // for ( imc::block blk: imcraw.blocks() )
+    // {
+    //   std::cout<<blk.get_key().get_info()<<"\n";
+    //   std::cout<<blk.get_info()<<"\n";
+    // }
     std::cout<<"number of blocks: "<<imcraw.blocks().size()<<"\n";
     std::cout<<"computational complexity: "<<imcraw.computational_complexity()
                                            <<"/"<<imcraw.buffer_size()<<"\n\n";