Electronic Copyright Management
                        System Testbed

                         Judith Grass
                        Corporation for
                National Research Initiatives


  o  Deposit of copyrighted materials

     -  Currently hard copy at Library of Congress

     -  Move to electronic repository

  o  Registration and automated filing of copyright claims

     -  Currently a manual process at the L.O.C.

  o  Rights, permissions and recordation

  o  Process validation

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System Components and Information Flow

 (See uri.grass.figure.gif)

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Digital Objects

  o  May incorporate works subject to copyright

  o  May be performances of works subject to copyright

  o  May be works unto themselves

  o  May contain confidential or proprietary material

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Examples of Works Incorporated in Digital Objects

  o  Literary Works

  o  Movies

  o  Pictures and Graphics

  o  VLSI Designs

  o  Software

  o  Simulations

  o  Knowledge Structures

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Fingerprinting a Digital Object

           _________
          |         |
          |         |                 _
          |         |   =========>   |_|  
          |         |
          |         |              Tiny Fingerprint
          |_________|

      Large Digital Object

Fingerprints are maintained in an IR Server (known as the Registration
and Recordation Server) along with Properties Records of all Copyright
Registration claims; they may be used to authenticate digital objects
at any time in the future.

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Digital Objects and Handles

  o  A Sequence of bits & a handle

  o  A Handle is

     -  An object identifier

     -  Unique

     -  Essentially permanent

     -  Location independent

     -  Scalable

     -  Support retrieval

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Handle Syntax

  o  hdl://auth_name/time_stamp:num/descriptor

  o  Authority Name

     -  Hierarchical:  techmemo.lib.megacorp

  o  Time stamp

     -  yyyymmdd.hhmmss:  19940718.203255

     -  serial number

     -  unique in combo with authority name

  o  Descriptor

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Handle Examples

  o  hdl://cs.berkeley.edu/19991202.145532/cstr_5782

  o  hdl://dls.cnri.us/20100530232323:5/

  o  hdl://lib_of_cong.us/19930401.020000/isbn0-201-62224-6

  o  hdl://tech_memo.lib.megacorp/2000.1131.235959/tm-775-22