Document:

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EXHIBIT 10.1

Letter of Intent between Liska Biometry, Inc. and Digital Card Systems, Inc.

Mr. Charles Benz
Chairman
Digital Card Systems, Inc.
6 Strawberry Hill Road
Action, MA 01720

                                LETTER OF INTENT

Dear Charles:

      This letter summarizes the principal terms of a proposed merger (the
"Merger") between Liska Biometry, Inc., a Florida corporation ("Liska"), and
Digital Card Systems, Inc., a Delaware corporation, and its subsidiaries and
affiliates (collectively "DCS"), together referred to as the parties
("Parties").

Merger. DCS and Liska hereby acknowledge their intention to consolidate, combine
and otherwise merge their respective companies as quickly as reasonably
possible, leaving Liska as the surviving entity. The parties also agree to merge
in a stock exchange or such other method which provides the most tax efficient
application for their respective shareholders. Accordingly, the parties have
agreed to merge upon achievement of the following conditions precedent:

      (a)   The Boards of Directors of each such company shall approve each and
            all transactions as required by law and by their respective articles
            of incorporation, bylaws, and other corporate documentation.

                  (b) DCS shall arrange to acquire one or more synergistic
            operating businesses ("Acquisition(s)") with revenues which, when
            combined with DCS revenues, shall aggregate to at least US$ 8
            million in operating revenues.

                  (c) Liska shall, with DCS's cooperation, obtain audited
            financial statements of DCS in detail and for periods reasonably
            satisfactory to Liska.

                  (d) Liska shall obtain a "fairness" opinion as to the
            transaction in form and substance reasonably satisfactory to Liska.

                  (e) Liska, in cooperation with DCS, shall obtain at least $5
            million in financing to be used for Acquisition(s) and working
            capital. The Parties shall use their best efforts to structure
            equity-based financing.

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                  (f) The parties will enter into a Definitive Agreement of
            Merger ("Agreement") not later than December 31, 2005, or upon such
            date as the parties my otherwise mutually agree.

                  (g) The parties will have secured approval of the merger by
            their respective shareholders.

                  (h) The merger shall have been declared effective by the
            Securities And Exchange Commission and such other regulatory
            agencies as may be required by law.

                  (i) Such other conditions as are customary for such
            transactions.

         2. Stock Transfer. Upon the effective date of the merger, DCS
shareholders shall receive 25 million shares of Liska common stock. As of
September 30, 2005, existing Liska shareholders held 26,291,263 shares, less
760,000 that the board of directors has voted to cancel, of common stock. It is
the intention of the Parties that existing Liska shareholders and DCS
shareholders shall be equally diluted by any Acquisition(s) and/or the financing
set forth in paragraph 1(d) above, and/or any other equity issuances occurring
in the ordinary course of Liska operating its business, or raising capital,
prior to the merger.

         3. Titles & Positions; Board of Directors Following the effective date
of the merger:

                  (a) Charles Benz shall become the Co-Chairman and Chief
Executive Officer and Chris LeClerc shall become the President of Liska, each
with all rights and responsibilities and salary appurtenant to such position,
including the holding of a seat on the Board of Directors of Liska. Each of the
titles and positions shall be further spelled out in definitive acquisition
documents.

                  (b) Each of Liska and DCS shall be entitled to nominate two
persons to the Board of Directors, and the Board as then constituted shall then
nominate a fifth person to complete a five person Board of Directors.

                  (c) Liska shall be entitled to nominate its person to become
CFO, and DCS shall be entitled to nominate its person to become CTO of Liska.

         4. Listing on National Exchange or Market. It is the intention of the
parties that the Board of Directors of the merged entity shall, as promptly as
possible following the effective date of Merger, have the Company listed on a
national market or exchange, as the Board shall determine.

         5. Confidentiality; Access to Information. Each of companies identified
herein, and each of their directors, officers and employees shall hold
confidential the terms and conditions of this letter and the Agreement. From and
after the date of the execution of this letter, to and including the time at
which negotiations are terminated, each of the parties, acknowledging the prior
execution of a mutual Non-Disclosure Agreement, will be given reasonable access
to all

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books, records, facilities, contractual agreements and commitments, and all
other documents that would have a bearing on the financing and operations of
Liska and DCS, in order for each of the parties to conduct an appropriate due
diligence investigation.

         6. Standstill; Consideration; Use For a period extending until June 30,
2006, or such earlier date if the parties terminate negotiations, DCS, shall
not, directly or indirectly, initiate, entertain, encourage or discuss with any
third party any transaction, in single or multiple steps, which would undermine,
confuse, interfere with or otherwise work against the transaction described in
this letter of intent. As consideration for this Standstill and as an evidence
of its good faith commitment to complete the transactions contemplated in this
letter of intent, Liska agrees to deliver to DCS, within five (5) business days
following execution of this Letter of Intent, by bank check or other acceptable
transfer means, a good faith money deposit of one hundred thousand dollars
($100,000) ("Good Faith Deposit"). DSC shall return the Good Faith Deposit to
Liska if: (a) Liska shall, with Cause, decline to proceed with the transactions
described in this Letter of Intent; or, (b) DCS shall, without Cause, decline to
proceed with the transactions contemplated by this Letter of Intent. For the
purpose of proper due diligence cause shall be defined as a blatant
misrepresentation of material facts. DCS agrees to use the capital toward
professional fees and working capital in conjunction with the proposed merger.

         7. Non-Binding and Binding Provisions; Controlling Law: With the
exception of paragraphs 5 and 6 above, the terms of this letter of intent are
NON-BINDING and for discussion purposes only. With the exception of paragraphs 5
and 6, NO legally binding obligations on the parties will be created, implied or
inferred until the Agreement is executed regarding the subject matter of this
letter, and containing all other essential terms of an agreed upon transaction
and delivered by all parties. Any dispute arising between the parties in
connection with paragraphs 5 and/or 6 of this letter of intent shall be resolved
pursuant to, construed under the laws of, and resolved in the courts of the
State of New Hampshire, without regard to jurisdictional issues.

         If the terms of this proposed Merger are satisfactory, please indicate
by signing the Letter of Intent and faxing a copy to Liska no later than
November 25, 2005, as time is of the essence in closing the transactions
contemplated herein.

LISKA BIOMETRY, INC.

By:___________________________________
     Chris LeClerc
     Chief Executive Officer

Acknowledged and agreed to:
DIGITAL CARD SYSTEMS, INC.

By:___________________________________
       Charles Benz
       ChairmanUnassociated Document

    
      EXHIBIT
        4.8

      

       

      8%
        B NOTE

      
        	 	 
	
                ${______}.00

              	
                ________,
                  200_

              

      

      

      Subject
        to the terms and conditions of this 8% B Note (“Note”), for good and valuable
        consideration received, Market Central, Inc. d/b/a Scientigo, Inc., a Delaware
        corporation (the “Company”), promises to pay to the order of {_____________}
        (“Holder”) the principal amount of ${__________}.00 (the “Principal Amount”),
        plus simple interest, accrued on unpaid principal from the date of this Note
        until paid at the rate of 8.0% per annum (360-day year basis).

       

      The
        following is a statement of the rights of the Holder of this Note and the
        terms
        and conditions to which this Note is subject, and to which the Holder, hereof,
        by the acceptance of this Note, agrees:

       

      Payment
        Obligation.
        The
        principal and accrued but unpaid interest under this Note will be paid to
        the
        Holder on May 31, 2007 (the “Maturity Date”), unless previously paid or
        converted into securities of the Company in accordance with the “Optional
        Conversion” section hereof. All payments of principal and/or interest under this
        Note will be made at the address set forth below or by mail to the address
        of
        record of the Holder. All cash payments hereunder shall be made in lawful
        money
        of the United States of America, to the Holder, at such place and to such
        account as the Holder shall designate in a written notice to the Company.
        Accrued
        but unpaid interest shall be due and payable quarterly, commencing on the
        earlier of the first February 28, May 31, August 31 or November 30 following
        the
        date hereof.

       

      Prepayment.
        The
        principal amount of this Note may be prepaid by the Company at any time without
        penalty upon thirty (30) days prior written notice to the Holder; provided
        that
        if such written notice is provided at anytime that the Principal Amount may
        not
        be converted into Conversion Shares as set forth in the “Optional Conversion”
        section hereof, such prepayment shall be permissible only with the prior
        written
        consent of the holder hereof.

       

      Optional
        Conversion.
Beginning
        ______________, 2007 [12 months from the Exchange Offer Expiration Date as
        defined in the Company’s prospectus dated December __, 2005, pursuant to which
        this Note was issued] or such later date that the Company has filed a
        registration statement that has been declared effective by the SEC for the
        purpose of issuing registered shares of Common Stock upon conversion of the
        Principal Amount of this Note, and ending on the Maturity Date, the
        Principal Amount outstanding under this Note may be converted at the option
        of
        the Holder into shares of Common Stock of the Company at a conversion rate
        of
        one share per $.96 of the Principal Amount (the “Conversion Shares”). Such
        optional conversion may be for the whole or any part of the Principal Amount
        of
        this Note. The Holder may exercise his conversion rights hereunder by delivering
        a conversion notice to the Company substantially in the form of Exhibit A
        hereto.

       

      The
        Company agrees to use its best efforts to (i) file such registration statement
        with the SEC and obtain such effectiveness not later than _______________,
        2007
        [12 months from the Exchange Offer Expiration Date as defined in the Company’s
        prospectus dated December __, 2005, pursuant to which this Note was issued],
        and
        (ii) maintain the effectiveness of such registration for so long as this
        Note is
        outstanding.

      

        Reorganization,
          Reclassification, Consolidation, Merger or Sale, etc.  

         

        (i) If
          the
          Company at any time subdivides (by any stock split, stock dividend,
          recapitalization or otherwise) its class of outstanding shares of the Common
          Stock into a greater number of shares, the conversion rate in effect immediately
          prior to such subdivision will be proportionately reduced, and if the Company
          at
          any time combines (by reverse stock split or otherwise) one or more classes
          of
          its outstanding shares of its Common Stock, the conversion rate in effect
          immediately prior to such combination will be proportionately increased
          concurrently with the effectiveness of such event.

         

        (ii) Any
          capital reorganization, reclassification, consolidation, merger or sale
          of all
          or substantially all of the Company’s assets to another person which is effected
          in such a way that holders of Common Stock are entitled to receive (either
          directly or upon subsequent liquidation) stock, securities or assets with
          respect to or in exchange for Common Stock is referred to herein as an
“Organic
          Change.” Prior to the consummation of any Organic Change, the Company will make
          appropriate provisions to insure that the Holder will thereafter have the
          right
          upon subsequent conversion of the Principal Amount to acquire and receive
          such
          shares of stock, securities or assets as such Holder would have received
          in
          connection with such Organic Change if such Holder had converted the Principal
          Amount hereof immediately prior to such Organic Change. The Company will
          not
          effect any such consolidation, merger or sale, unless prior to the consummation
          thereof, the successor Company (if other than the Company) resulting from
          consolidation or merger or the Company purchasing such assets assumes by
          written
          instrument the obligation to deliver to the Holder such shares of stock,
          securities or assets as, in accordance with the foregoing provisions, such
          holder may be entitled to acquire.

         

        Stock
          to be Reserved.
          The
          Company will at all times reserve and keep available out of its authorized
          Common Stock or its treasury shares, solely for the purpose of issue upon
          the
          conversion of the Principal Amount of the Note as herein provided, such
          number
          of shares of Common Stock as shall then be issuable upon the conversion
          of then
          outstanding Principal Amount of this Note. The Company covenants that all
          shares
          of Common Stock which shall be so issued shall be duly and validly issued
          and
          fully paid and nonassessable and free from all liens and charges with respect
          to
          the issue thereof. 

         

      

      
      

      Assignment.
        The
        rights and obligations of the Company and the Holder will be binding upon
        and
        inure to the benefit of the successors, assigns, heirs, administrators and
        transferees of the parties.

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

       

      Waiver
        and Amendment.
        Any
        provision of this Note may be amended, waived or modified upon the written
        consent of the Company and the Holder.

       

      Notices.
        Any
        notice, request or other communication required or permitted hereunder will
        be
        in writing and shall be deemed to have been duly given if personally delivered
        or if telegraphed or mailed by registered or certified mail, postage prepaid,
        at
        the respective addresses of the parties as set forth below. Any party hereto
        may
        by notice so given change its address for future notice hereunder. Notice
        will
        conclusively be deemed to have been given when personally delivered or when
        deposited in the mail or telegraphed in the manner set forth above and will
        be
        deemed to have been received when delivered. Prior to the maturity of this
        Note,
        if the Company (i) fixes a record date for purposes of determining
        the
        Holders of any class or series of securities who are entitled to receive
        any
        dividend or other distribution, or (ii) fixes a closing date for the
        issuance of any equity securities of the Company, the Company will mail to
        the
        Holder, at least fifteen (15) days prior to such date a notice specifying
        such
        record date or closing date and the matter pursuant to which such record
        date or
        closing date has been set. Prior to the payment of any Principal Amount,
        the
        Company shall provide the Holder with thirty (30) days prior written notice,
        stating that the Holder may convert the Principal Amount of the Note into
        Conversion Shares prior to payment.

       

      Rights
        as a Stockholder.
        This
        Note, as such, shall not entitle the Holder to any rights as a stockholder
        of
        the Company, except as otherwise specified herein.

       

      Governing
        Law.
        This
        Agreement shall be governed by and construed in accordance with the laws
        of the
        State of Delaware, excluding that body of law relating to conflict of
        laws.

       

      Severability.
        If one
        or more provisions of this Note are held to be unenforceable under applicable
        law, such provision shall be excluded from this Note and the balance of the
        Note
        shall be interpreted as if such provision were so excluded and shall be
        enforceable in accordance with its terms. 

       

      Time
        of the Essence.
        Time is
        of the essence of this Note.

       

      Costs
        of Enforcement; Presentment.
        The
        Company agrees to pay on demand all of the losses, costs, and expenses
        (including, without limitation, all reasonable attorneys’ fees and
        disbursements) which the Holder incurs in connection with enforcement of
        this
        Note, or the protection or preservation of the Holder’s rights under this Note,
        whether by judicial proceeding or otherwise. Such costs and expenses include,
        without limitation, those incurred in connection with any workout or
        refinancing, or any bankruptcy, insolvency, liquidation or similar proceedings.
        The Company hereby waives diligence, demand, presentment, protest or notice
        of
        any kind. The Company agrees to make all payments under this Note without
        setoff
        or deduction and regardless of any counterclaim or defense.

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

       

      Headings;
        References.
        All
        headings used herein are used for convenience only and will not be used to
        construe or interpret this Note. Except where otherwise indicated, all
        references herein to Sections refer to Sections hereof.

       

      Previous
        Agreements Superceded.
        This
        Note shall supercede all previous agreements made on or prior to the date
        hereof
        between the Holder and the Company with respect to the subject matter
        hereof.

      

      IN
        WITNESS WHEREOF, the parties have caused this Note to be issued as of
        _____________, 200_.

      

      
        	 	
                THE
                  COMPANY:

                 

                Market
                  Central, Inc. d/b/a Scientigo, Inc.

                 

                By:__________________________________________

                Name:________________________________________

                Title:_________________________________________

                 

                Address:

                Suite
                  205

                6701
                  Carmel Road

                Charlotte,
                  NC 28226

              
	 	 
	 	
                HOLDER:

                 

                
                  By:__________________________________________

                

                 

                 

                Address:

                _________________________

                _________________________

                _________________________
                  

              

      

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      EXHIBIT
        A

      

      Scientigo,
        Inc.

      6701
        Carmel Road

      Suite
        205

      Charlotte,
        NC 28266

      Atten:
        Chief Financial Officer

      

      CONVERSION
        NOTICE

      

      SCIENTIGO
        8% B NOTES

       

      The
        undersigned is the owner of $______________ Principal Amount of Scientigo
        8% B
        Notes (the “Note”), which original Note is enclosed with this Conversion Notice.
        In accordance with the terms of such Note, the undersigned hereby elects
        to
        convert $_____________ Principal Amount of the Note into shares of the Common
        Stock of Scientigo, Inc. Any remaining Principal Amount of the Note and the
        shares of Common Stock should be delivered to:

       

      
        	 	
                __________________________________________

                __________________________________________

                __________________________________________

                 

              
	 	 
	 	
                Name:__________________________________________

                Title:___________________________________________

                Date:___________________________________________

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