create a fabric supporting thin peers

qs meng <qsmeng@...>

   I want to make some modification to the fabric  such that the peer only save blockheaders, not the transactions, not the meta data.  A peer with the code is called a thin peer which needs less storage.  But I still want a thin peer can check the correctness of transactions. 
   Now I want you some help.  
  1. is the idea feasible?
  2. what codes should be modified?  what I find is  " common/ledger/blkstorage/fsblkstorage/blockfile_mgr.go".  is there any other codes?
  Thank you.
  best regards,


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