Document:

<PAGE>

                                    EXHIBIT A

THIS PROMISSORY NOTE AND THE SECURITIES INTO WHICH IT MAY BE CONVERTED HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
ACT"), OR APPLICABLE STATE SECURITIES LAWS. THIS PROMISSORY NOTE AND, IF
APPLICABLE, THE SECURITIES INTO WHICH IT IS CONVERTED, HAVE BEEN ACQUIRED FOR
INVESTMENT AND NOT WITH A VIEW TO THEIR DISTRIBUTION OR RESALE, AND MAY NOT BE
SOLD, PLEDGED OR OTHERWISE TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT FOR SUCH SECURITIES UNDER THE SECURITIES ACT AND APPLICABLE STATE
SECURITIES LAWS OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH
REGISTRATION IS NOT REQUIRED.

                           CONVERTIBLE PROMISSORY NOTE

$_______                                                        _______ __, 2002
                                                              New York, New York

         For value received ZENASCENT, INC., a Delaware corporation ("PAYOR" or
the "COMPANY") promises to pay to [PURCHASER], or its assigns ("HOLDER") the
principal sum of $[AMOUNT] with interest on the outstanding principal amount at
the rate of 10% per annum, compounded annually based on a 365-day year. Interest
shall commence with the date hereof and shall continue on the outstanding
principal until paid in full. Principal and accrued interest shall be due as
provided herein on or before the earlier to occur of (i) June 30, 2003 or (ii)
an Event of Default (as defined below) (each, the "MATURITY DATE").

         1. All payments of interest and principal shall be in lawful money of
the United States of America. All payments shall be applied first to accrued
interest and thereafter to principal.

         2. If there shall be any Event of Default hereunder, Payor shall pay
all reasonable attorneys' fees and court costs incurred by Holder in enforcing
and collecting this Note, and this Note shall accelerate and all principal and
unpaid accrued interest shall become due and payable. The occurrence of any one
or more of the following shall constitute an Event of Default:

              (a)  Payor fails to pay (i) timely the principal amount due under
                   this Note on the date the same becomes due and payable or
                   (ii) any accrued interest or other amounts due under this
                   Note within three (3) business days following the date the
                   same becomes due and payable;

              (b)  Payor files any petition or action for relief under any
                   bankruptcy, reorganization, insolvency or moratorium law or
                   any other law for the relief of, or relating to, debtors, now
                   or hereafter in effect, or makes any assignment for the
                   benefit of creditors or takes any corporate action in
                   furtherance of any of the foregoing; or

              (c)  An involuntary petition is filed against Payor (unless such
                   petition is dismissed or discharged within sixty (60) days)
                   under any bankruptcy statute now or hereafter in effect, or a
                   custodian, receiver, trustee, assignee

                                       1
<PAGE>

                   for the benefit of creditors (or other similar official) is
                   appointed to take possession, custody or control of any
                   property of Payor; or

              (d)  The Payor shall after any required notice thereunder and
                   after the expiration of applicable grace periods (i) default
                   in the repayment of any principal of or the payment of any
                   interest on any indebtedness, or (ii) breach or violate any
                   term or provision of any promissory note, loan agreement,
                   mortgage, indenture or other evidence of such indebtedness,
                   if the effect of such breach is to permit the acceleration of
                   such indebtedness.

         3. Payor hereby waives demand, notice, presentment, protest and notice
of dishonor.

         4. Payor shall organize a private placement of its equity securities
pursuant to which Payor will seek to raise a minimum of $700,000 and a maximum
of $2.5 million (the "PRIVATE PLACEMENT"). Upon the receipt by Payor of gross
proceeds of at least $500,000 in the Private Placement, all principal and
interest due on this Note shall be converted, at the option of Holder, into
either: (i) such equity securities as are sold in the Private Placement on a
dollar for dollar basis as if such principal had been used to purchase such
securities in the Private Placement or (ii) common stock, par value $.01, of
Payor (the "COMMON STOCK") at a conversion price of $1.00 per share; subject, in
each case, to appropriate adjustments for any stock-split or reverse stock-split
undertaken by Payor between the date hereof and the date of such conversion. If
the Private Placement has not been consummated on or before the Maturity Date,
at the Maturity Date all principal and interest due on this Note shall
automatically convert into Common Stock at a conversion price of $1.00 per share
(subject to appropriate adjustments for any stock-split or reverse stock-split
undertaken by the Company between the date hereof and the date of such
conversion).

         5. The Holder may elect to convert all principal and interest due on
this Note into Common Stock at a conversion price of $1.00 per share (subject to
appropriate adjustments for any stock-split or reverse stock-split undertaken by
the Company between the date hereof and the date of such conversion) at any time
following the date hereof.

         6. Promptly following the merger of a wholly-owned subsidiary of the
Company with and into Cedric Kushner Boxing, Inc., a Delaware corporation, the
Company shall use its best efforts to prepare, file and mail to its stockholders
a Proxy Statement and hold a meeting of the Company's stockholders related to
the actions described in the Proxy Statement (the "MEETING DATE"). The Company
shall use its reasonable best efforts to prepare and file with the Securities
and Exchange Commission within 45 days after the Meeting Date and have declared
effective under the Securities Act within 150 days following the Meeting Date a
registration statement on Form SB-2 or S-1 or such other form as is appropriate
in order to register the securities into which this Note may be converted.

         7. The terms of this Note shall be construed in accordance with the
laws of the State of New York, as applied to contracts entered into by New York
residents within the State of New York, which contracts are to be performed
entirely within the State of New York.

         8. Any term of this Note may be amended or waived with the written
consent of Payor and Holder.

                                       2
<PAGE>

         IN WITNESS WHEREOF, the Payor has caused this Promissory Note to be
executed by its duly authorized officer as of the date first set forth above.

                                       ZENASCENT, INC.

                                       By:
                                          ------------------------------------
                                          Steven Angel, Secretary

                                       3<PAGE>

                                    EXHIBIT B

THIS WARRANT AND THE UNDERLYING SHARES OF COMMON STOCK HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
APPLICABLE STATE SECURITIES LAWS. THIS WARRANT AND, IF EXERCISED, THE UNDERLYING
SHARES OF COMMON STOCK, HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO
THEIR DISTRIBUTION OR RESALE, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE
TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT FOR SUCH SECURITIES
UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS OR AN OPINION OF
COUNSEL SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

                                 ZENASCENT, INC.
                        WARRANT TO PURCHASE COMMON STOCK

NO. W-__                                                      ____________, 2002
                           VOID AFTER _________, 2007

THIS CERTIFIES THAT, for value received, [PURCHASER], with its principal office
at [ADDRESS OF PURCHASER], or its assigns (the "HOLDER"), is entitled to
subscribe for and purchase at the Exercise Price (defined below) from ZENASCENT,
INC., a Delaware corporation, with its principal office at 10 West 33rd Street,
Suite 705, New York, New York 10001 (the "CORPORATION") up to ___________
Thousand (__,000) shares of common stock, par value $.01 per share, of the
Corporation (the "COMMON STOCK").

1. DEFINITIONS. AS USED HEREIN, THE FOLLOWING TERMS SHALL HAVE THE FOLLOWING
RESPECTIVE MEANINGS:

    (A) "Exercise Period" shall mean the period commencing with the date hereof
    and ending five years from the date hereof, unless sooner terminated as
    provided below.

    (B) "Exercise Price" shall mean $.50 per share, subject to adjustment
    pursuant to Section 5 below.

    (C) "Exercise Shares" shall mean the shares of Common Stock issuable upon
    exercise of this Warrant.

2. EXERCISE OF WARRANT. THE RIGHTS REPRESENTED BY THIS WARRANT MAY BE EXERCISED
IN WHOLE OR IN PART AT ANY TIME DURING THE EXERCISE PERIOD, BY DELIVERY OF THE
FOLLOWING TO THE CORPORATION AT ITS ADDRESS SET FORTH ABOVE (OR AT SUCH OTHER
ADDRESS AS IT MAY DESIGNATE BY NOTICE IN WRITING TO THE HOLDER):

    (A) An executed Notice of Exercise in the form attached hereto;

    (B) Payment of the Exercise Price either in cash or by check; and

    (C) This Warrant.

<PAGE>

    Upon the exercise of the rights represented by this Warrant, a certificate
or certificates for the Exercise Shares so purchased, registered in the name of
the Holder or persons affiliated with the Holder, if the Holder so designates,
shall be issued and delivered to the Holder within a reasonable time after the
rights represented by this Warrant shall have been so exercised.

    The person in whose name any certificate or certificates for Exercise Shares
are to be issued upon exercise of this Warrant shall be deemed to have become
the holder of record of such shares on the date on which this Warrant was
surrendered and payment of the Exercise Price was made, irrespective of the date
of delivery of such certificate or certificates, except that, if the date of
such surrender and payment is a date when the stock transfer books of the
Corporation are closed, such person shall be deemed to have become the holder of
such shares at the close of business on the next succeeding date on which the
stock transfer books are open.

3. COVENANTS OF THE CORPORATION.

         3.1 Covenants as to Exercise Shares. The Corporation covenants and
agrees that all Exercise Shares that may be issued upon the exercise of the
rights represented by this Warrant will, upon issuance, be validly issued and
outstanding, fully paid and nonassessable, and free from all taxes, liens and
charges with respect to the issuance thereof. The Corporation further covenants
and agrees that the Corporation will at all times during the Exercise Period,
have authorized and reserved, free from preemptive rights, a sufficient number
of shares of its Common Stock to provide for the exercise of the rights
represented by this Warrant. If at any time during the Exercise Period the
number of authorized but unissued shares of Common Stock shall not be sufficient
to permit exercise of this Warrant, the Corporation will take such corporate
action as may, in the opinion of its counsel, be necessary to increase its
authorized but unissued shares of Common Stock to such number of shares as shall
be sufficient for such purposes.

         3.2 No Impairment. Except and to the extent as waived or consented to
by the Holder, the Corporation will not, by amendment of its Articles of
Incorporation or through any reorganization, transfer of assets, consolidation,
merger, dissolution, issue or sale of securities or any other voluntary action,
avoid or seek to avoid the observance or performance of any of the terms to be
observed or performed hereunder by the Corporation, but will at all times in
good faith assist in the carrying out of all the provisions of this Warrant and
in the taking of all such action as may be necessary or appropriate in order to
protect the exercise rights of the Holder against impairment.

         3.3 Notices of Record Date. In the event of any taking by the
Corporation of a record of the holders of any class of securities for the
purpose of determining the holders thereof who are entitled to receive any
dividend (other than a cash dividend which is the same as cash dividends paid in
previous quarters) or other distribution, the Corporation shall mail to the
Holder, at least ten (10) days prior to the date specified herein, a notice
specifying the date on which any such record is to be taken for the purpose of
such dividend or distribution.

4. REPRESENTATIONS OF HOLDER.

         4.1 Acquisition of Warrant for Personal Account. The Holder represents
and warrants that it is acquiring the Warrant solely for its account for
investment and not with a view to or for sale or distribution of said Warrant or
any part thereof. The Holder also represents that the entire legal and
beneficial interests of the Warrant and Exercise Shares the Holder is acquiring
is being acquired for, and will be held for, its account only.

                                       2
<PAGE>

         4.2 Securities Are Not Registered.

         (a) The Holder understands that the Warrant and the Exercise Shares
have not been registered under the Securities Act of 1933, as amended (the
"ACT") on the basis that no distribution or public offering of the stock of the
Corporation is to be effected. The Holder realizes that the basis for the
exemption may not be present if, notwithstanding its representations, the Holder
has a present intention of acquiring the securities for a fixed or determinable
period in the future, selling (in connection with a distribution or otherwise),
granting any participation in, or otherwise distributing the securities. The
Holder has no such present intention.

         (b) The Holder recognizes that the Warrant and the Exercise Shares must
be held indefinitely unless they are subsequently registered under the Act or an
exemption from such registration is available. The Holder recognizes that the
Corporation has no obligation to register the Warrant or the Exercise Shares of
the Corporation, or to comply with any exemption from such registration.

         (c) The Holder is aware that neither the Warrant nor the Exercise
Shares may be sold pursuant to Rule 144 adopted under the Act unless certain
conditions are met, including, among other things, the existence of a public
market for the shares, the availability of certain current public information
about the Corporation, the resale following the required holding period under
Rule 144 and the number of shares being sold during any three month period not
exceeding specified limitations. Holder is aware that the conditions for resale
set forth in Rule 144 have not been satisfied and that the Corporation presently
has no plans to satisfy these conditions in the foreseeable future.

         4.3 Disposition of Warrant and Exercise Shares. The Holder understands
and agrees that all certificates evidencing the shares to be issued to the
Holder may bear the following legend:

    THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
    AS AMENDED (THE "ACT"). THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR
    HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE
    SECURITIES UNDER THE ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE
    CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

5. ADJUSTMENT OF EXERCISE PRICE. In the event of changes in the outstanding
Common Stock of the Corporation by reason of stock dividends, split-ups,
recapitalizations, reclassifications, combinations or exchanges of shares,
separations, reorganizations, liquidations, or the like prior to the exercise of
this Warrant (or portion thereof), the number and class of shares available
under the Warrant (or portion thereof) in the aggregate and the Exercise Price
shall be correspondingly adjusted to give the Holder of the Warrant (or portion
thereof), on exercise for the same aggregate Exercise Price, the total number,
class, and kind of shares as the Holder would have owned had the Warrant (or
portion thereof) been exercised prior to the event and had the Holder continued
to hold such shares until after the event requiring adjustment. The form of this
Warrant need not be changed because of any adjustment in the number of Exercise
Shares subject to this Warrant.

                                       3
<PAGE>

6. FRACTIONAL SHARES. No fractional shares shall be issued upon the exercise of
this Warrant as a consequence of any adjustment pursuant hereto. All Exercise
Shares (including fractions) issuable upon exercise of this Warrant may be
aggregated for purposes of determining whether the exercise would result in the
issuance of any fractional share. If, after aggregation, the exercise would
result in the issuance of a fractional share, the Corporation shall, in lieu of
issuance of any fractional share, pay the Holder otherwise entitled to such
fraction a sum in cash equal to the product resulting from multiplying the then
current fair market value of an Exercise Share by such fraction.

7. NO STOCKHOLDER RIGHTS. This Warrant in and of itself shall not entitle the
Holder to any voting rights or other rights as a stockholder of the Corporation.

8. TRANSFER OF WARRANT. Subject to applicable laws, the restriction on transfer
set forth on the first page of this Warrant, this Warrant and all rights
hereunder are transferable, by the Holder in person or by duly authorized
attorney, upon delivery of this Warrant and the form of assignment attached
hereto to any transferee designated by Holder. The transferee shall sign an
investment letter in form and substance satisfactory to the Corporation.

9. LOST, STOLEN, MUTILATED OR DESTROYED WARRANT. If this Warrant is lost,
stolen, mutilated or destroyed, the Corporation may, on such terms as to
indemnity or otherwise as it may reasonably impose (which shall, in the case of
a mutilated Warrant, include the surrender thereof), issue a new Warrant of like
denomination and tenor as the Warrant so lost, stolen, mutilated or destroyed.
Any such new Warrant shall constitute an original contractual obligation of the
Corporation, whether or not the allegedly lost, stolen, mutilated or destroyed
Warrant shall be at any time enforceable by anyone.

10. NOTICES, ETC. All notices and other communications required or permitted
hereunder shall be in writing and shall be sent by telex, telegram, express mail
or other form of rapid communications, if possible, and if not then such notice
or communication shall be mailed by first-class mail, postage prepaid, addressed
in each case to the party entitled thereto at the following addresses: (a) if to
the Corporation, to Zenascent, Inc., Attention: Secretary, 10 West 33rd Street,
Suite 705, New York, NY 10001 and (b) if to the Holder, [ADDRESS OF HOLDER], or
at such other address as one party may furnish to the other in writing. Notice
shall be deemed effective on the date dispatched if by personal delivery,
telecopy, telex or telegram, two days after mailing if by express mail, or three
days after mailing if by first-class mail.

11. REGISTRATION RIGHTS. Promptly following the merger of a wholly-owned
subsidiary of the Corporation with and into Cedric Kushner Boxing, Inc., a
Delaware corporation, the Corporation shall use its best efforts to prepare,
file and mail to its stockholders a Proxy Statement and hold a meeting of the
Corporation's stockholders related to the actions described in the Proxy
Statement (the "Meeting Date"). The Corporation shall use its reasonable best
efforts to prepare and file with the Securities and Exchange Commission within
45 days after the Meeting Date and have declared effective under the Securities
Act within 150 days following the Meeting Date a registration statement on Form
SB-2 or S-1 or such other form as is appropriate in order to register the
Exercise Shares.

12. ACCEPTANCE. Receipt of this Warrant by the Holder shall constitute
acceptance of and agreement to all of the terms and conditions contained herein.

13. GOVERNING LAW. This Warrant and all rights, obligations and liabilities
hereunder shall be governed by the laws of the State of New York.

                                       4
<PAGE>

         IN WITNESS WHEREOF, the Corporation has caused this Warrant to be
executed by its duly authorized officer as of _____________, 2002.

                                       ZENASCENT, INC.

                                       By:
                                          --------------------------------------
                                          Name:  Steven Angel
                                          Title: Secretary

ATTEST:

--------------------------------------

                                       5
<PAGE>

                               NOTICE OF EXERCISE
TO: ZENASCENT, INC.

(1) The undersigned hereby elects to purchase ______________ shares of the
Common Stock of ZENASCENT, INC. (the "COMPANY") pursuant to the terms of the
attached Warrant, and tenders herewith payment of the exercise price in full,
together with all applicable transfer taxes, if any.

(2) Please issue a certificate or certificates representing said shares of
Common Stock in the name of the undersigned or in such other name as is
specified below:

                            ------------------------
                                     (Name)

                            ------------------------

                            ------------------------
                                    (Address)

(3) The undersigned represents that (i) the aforesaid shares of Common Stock are
being acquired for the account of the undersigned for investment and not with a
view to, or for resale in connection with, the distribution thereof and that the
undersigned has no present intention of distributing or reselling such shares;
(ii) the undersigned is aware of the Company's business affairs and financial
condition and has acquired sufficient information about the Company to reach an
informed and knowledgeable decision regarding its investment in the Company;
(iii) the undersigned is experienced in making investments of this type and has
such knowledge and background in financial and business matters that the
undersigned is capable of evaluating the merits and risks of this investment and
protecting the undersigned's own interests; (iv) the undersigned understands
that the shares of Common Stock issuable upon exercise of this Warrant have not
been registered under the Securities Act of 1933, as amended (the "SECURITIES
ACT"), by reason of a specific exemption from the registration provisions of the
Securities Act, which exemption depends upon, among other things, the bona fide
nature of the investment intent as expressed herein, and, because such
securities have not been registered under the Securities Act, they must be held
indefinitely unless subsequently registered under the Securities Act or an
exemption from such registration is available; (v) the undersigned is aware that
the aforesaid shares of Common Stock may not be sold pursuant to Rule 144
adopted under the Securities Act unless certain conditions are met and until the
undersigned has held the shares for the number of years prescribed by Rule 144,
that among the conditions for use of the Rule is the availability of current
information to the public about the Company and the Company has not made such
information available and has no present plans to do so; and (vi) the
undersigned agrees not to make any disposition of all or any part of the
aforesaid shares of Common Stock unless and until there is then in effect a
registration statement under the Securities Act covering such proposed
disposition and such disposition is made in accordance with said registration
statement, or the undersigned has provided the Company with an opinion of
counsel satisfactory to the Company, stating that such registration is not
required.

---------------------------------           ----------------------------
(Print Name)                                (Signature)

Date:
     ----------------------------

                                        6
<PAGE>

                                 ASSIGNMENT FORM

               (To assign the foregoing Warrant, execute this form
               and supply required information.  Do not use this
               form to purchase shares.)

         FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced
thereby are hereby assigned to

Name:
     ---------------------------------------------------------------------------
                                 (Please Print)

Address:
        ------------------------------------------------------------------------
                                 (Please Print)

Dated:
       -----------------
Holder's Signature:
                    -------------------------------------
Holder's Address:
                    -------------------------------------

                    -------------------------------------

NOTE: The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatever. Officers of corporations and those acting in a fiduciary or
other representative capacity should file proper evidence of authority to assign
the foregoing Warrant.

                                        7

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00038-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00038-of-00352.parquet"}]]