Contract 0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c

Txn Hash
Value [Txn Fee]
0x8c2fc4d94de816b183b25a526758efb351aa8df829fc47b03bdd7d2eb2e45a9526889802020-11-30 13:13:231 min ago0x6c5f195506354e42bbdf2473dd3b0f155a8ca2a3 IN  Binance: WBNB Token0 BNB0.00044632
0x6437b81a011bc7b5a2996778a78e5809e2cbcbc81bee0ed832da617a032033fb26888052020-11-30 13:04:3810 mins ago0x1a98670e2c23a8706bc177204c4e94b8afcc0c63 IN  Binance: WBNB Token0 BNB0.00044656
0xaca9e1cb5f167b3ebee0184a8dacf9a609d2aeafe181539916186196ef7e7d8f26885652020-11-30 12:52:3822 mins ago0xa31556a0d64f2d022f553b6419d2de19ceaf802d IN  Binance: WBNB Token0 BNB0.00074608
0x587929bc3398678a714183ec3f48f505b55378e75dc1086493ce9d911a1896c926885442020-11-30 12:51:3523 mins ago0xf7a776344234e8a0ea5cb4bb5352d056ad5232c3 IN  Binance: WBNB Token0.004 BNB0.001005974
0x43533b380fb5de4cf104a7ca11d0ed124a96cc3605e5e008bba3163146be35f426885412020-11-30 12:51:2623 mins ago0xbdc1e8a238572e8e282b791e993f571bf8640d83 IN  Binance: WBNB Token0 BNB0.00044656
0x9e3641b27da6a16d2b85a646bf923e00b18c884ec7d4e922940d23f021fe535f26881752020-11-30 12:33:0841 mins ago0xa31556a0d64f2d022f553b6419d2de19ceaf802d IN  Binance: WBNB Token0 BNB0.00074632
0x8c951f8ea49751dca8ab1eb647a48561c56a81fda85cfcd91bdbdb852ae41ebb26881682020-11-30 12:32:4742 mins ago0xa31556a0d64f2d022f553b6419d2de19ceaf802d IN  Binance: WBNB Token0 BNB0.00074608
0xa38e5949f555fd827b9d03c6643547fdd2e2c698297940938ef84ea865bca72b26880082020-11-30 12:24:4750 mins ago0x4740fa6b32c5b41ebbf631fe1af41e6fff6e2388 IN  Binance: WBNB Token0.2 BNB0.00057476
0xa281ec6b39e9ed0f81a7433b9e32f6bc826be97040b09e24509ae0153ce9f8fe26879882020-11-30 12:23:4751 mins ago0x4740fa6b32c5b41ebbf631fe1af41e6fff6e2388 IN  Binance: WBNB Token0.05 BNB0.00087476
0xd8b67828f94c084f160be17cee28d3436baf7a1b1583e94ea784bdaeb794702726878582020-11-30 12:17:1757 mins ago0x4740fa6b32c5b41ebbf631fe1af41e6fff6e2388 IN  Binance: WBNB Token0 BNB0.00044656
0xdc5cb74dc6e6ac353ad7edf01380a10f7654030eafcaa984d6c0ffff37f21b0a26878542020-11-30 12:17:0557 mins ago0x82e9ce0c18fdbd29cb6fb8ecd01d533bacf12658 IN  Binance: WBNB Token0 BNB0.00044632
0x8a05eacf97c2f732f615025365c073ee40cd6cdb5a89f75ec48a64bdef195c1d26874542020-11-30 11:57:051 hr 17 mins ago0xd6ccbf26b837a71da7bfc40dedfbc7945ff4a146 IN  Binance: WBNB Token0 BNB0.00074632
0x785af41d14ad942edf16537264460ce93fd6b7be3cc16bf52ef07676b013bb6226874462020-11-30 11:56:411 hr 18 mins ago0xd6ccbf26b837a71da7bfc40dedfbc7945ff4a146 IN  Binance: WBNB Token0 BNB0.00044886
0xb45ce76af92966e85f6c6a8017517e4c8d0f9e8d0e718b9dba15f793538799d426874292020-11-30 11:55:501 hr 19 mins ago0x0c01472f7dc99e72b2de55ee61d5abb6a3a12d90 IN  Binance: WBNB Token0 BNB0.00044632
0x4c0e6de5a4f2690aeef9b6dd4c565c6d864b450f2c8896968902e0238ca032f826873082020-11-30 11:49:471 hr 25 mins ago0x13481985968298821a77dce28ce9c67f408620dc IN  Binance: WBNB Token0 BNB0.000513544
0xc08570df91483c1ce73ba7c5572752fa5298e9e8967c0f8759721d336a7681ab26870892020-11-30 11:38:501 hr 36 mins ago0x8534a1cb741d8a3ae3e1269758f9378766aba99d IN  Binance: WBNB Token0 BNB0.000490688
0xca3ccb56b5ed41db0270c20c97ed64d896b93eb58725159eb180203e8b9c95d526869072020-11-30 11:29:441 hr 45 mins ago0xb98a93d592db3e1b33ae27cce3ca3ab3439deac0 IN  Binance: WBNB Token0 BNB0.000513268
0xb01aa93fd562f5012a7469759eca87aff2d78ee048aeba75be9c62140691372b26867762020-11-30 11:23:111 hr 51 mins ago0x98406e232c8441f6b1b7614e390cbbe961b1bbaf IN  Binance: WBNB Token0 BNB0.00044632
0x3c017f29c185ca939c21af893513c0aac7059b4627430730c504d191a710a86726866642020-11-30 11:17:351 hr 57 mins ago0x1018732b60b3fdc204fc08c52c88c394ae8754c9 IN  Binance: WBNB Token0 BNB0.000513268
0x1c2090738e30b7ea807a18366e845a58890cbcd7e064172021533996c1a5251526866072020-11-30 11:14:442 hrs ago0xc2188b7ebf202a7f6d8f4d7b6e8e73c5122a1a3e IN  Binance: WBNB Token0 BNB0.001134536
0xce14d3482a45249ed03e8d53343f26c388e69a39da39e8886d3b4d9d69ac4d2f26864372020-11-30 11:06:142 hrs 8 mins ago0xec56bb4bf3f84e50dc61a33f1a135c1182e15c22 IN  Binance: WBNB Token0 BNB0.00044632
0x648d5c7be4c3f6041b68ff97710a461670d442c0a5d11fdf0bfaada1e3fd3ec926861212020-11-30 10:50:262 hrs 24 mins ago0xb02c1c9a9479e9cb7d0ba50492b9e79a0990b709 IN  Binance: WBNB Token0 BNB0.00044608
0x7d88e82ca4c9d7f8aac50d5dc79913ffa8d28b9cb068557bf6c0b7428165a96626859082020-11-30 10:39:472 hrs 35 mins ago0x19dba87e6ade4590eb3ebb219207ab2ced923a37 IN  Binance: WBNB Token0 BNB0.000513544
0xce9220414701bcae56eb82e3aa0e52582222c2675844970bd20e4fdc613225d926858982020-11-30 10:39:172 hrs 35 mins ago0xa31556a0d64f2d022f553b6419d2de19ceaf802d IN  Binance: WBNB Token0 BNB0.00074656
0x3f7f00cf8659ce966cb18bac5fb5a294da209f0ec266e3b06f587dbc10ff026b26857562020-11-30 10:32:112 hrs 42 mins ago0xd92240e5458f98467f1c2b45e5414d126fc7af64 IN  Binance: WBNB Token0 BNB0.001018072
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As the native coin of Binance Chain, BNB has multiple use cases: fueling transactions on the Chain, paying for transaction fees on Binance Exchange, making in-store payments, and many more.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x8149710901088b7b701ffda2b9d4b54ea46c751cfc4964189c0489649dd21eb326890062020-11-30 13:14:4110 secs ago PancakeSwap: UNFI 3 Binance: WBNB Token0 BNB
0x8149710901088b7b701ffda2b9d4b54ea46c751cfc4964189c0489649dd21eb326890062020-11-30 13:14:4110 secs ago PancakeSwap: USDT Binance: WBNB Token0 BNB
0x8149710901088b7b701ffda2b9d4b54ea46c751cfc4964189c0489649dd21eb326890062020-11-30 13:14:4110 secs ago PancakeSwap: USDT Binance: WBNB Token0 BNB
0xd58dc058baa187ba09cd61cc1f7c5997742dc66ce52bfaa95e704bde18de939526890042020-11-30 13:14:3516 secs ago 0x555ea72d7347e82c614c16f005fa91caf06dcb5a Binance: WBNB Token0 BNB
0x3cfd089e52cb3131d6c8a41b45761dc355bc3c0a9c8c9f4f53f7b72453167ece26890042020-11-30 13:14:3516 secs ago PancakeSwap: UNFI 3 Binance: WBNB Token0 BNB
0x3cfd089e52cb3131d6c8a41b45761dc355bc3c0a9c8c9f4f53f7b72453167ece26890042020-11-30 13:14:3516 secs ago PancakeSwap: USDT Binance: WBNB Token0 BNB
0x3cfd089e52cb3131d6c8a41b45761dc355bc3c0a9c8c9f4f53f7b72453167ece26890042020-11-30 13:14:3516 secs ago PancakeSwap: USDT Binance: WBNB Token0 BNB
0x9a3c5b8cf1fbe094fbb30858868a2b0df10d3b9a2b20aa598edb7406aded8af926890032020-11-30 13:14:3219 secs ago PancakeSwap: XVS Binance: WBNB Token0 BNB
0x9a3c5b8cf1fbe094fbb30858868a2b0df10d3b9a2b20aa598edb7406aded8af926890032020-11-30 13:14:3219 secs ago PancakeSwap: DAI Binance: WBNB Token0 BNB
0x9a3c5b8cf1fbe094fbb30858868a2b0df10d3b9a2b20aa598edb7406aded8af926890032020-11-30 13:14:3219 secs ago PancakeSwap: DAI Binance: WBNB Token0 BNB
0x8c600bf95ede255c79dd5581e8a3a6e0446d03c4a0b3ab9a7c0682947c15222e26890032020-11-30 13:14:3219 secs ago PancakeSwap: SXP Binance: WBNB Token0 BNB
0x8c600bf95ede255c79dd5581e8a3a6e0446d03c4a0b3ab9a7c0682947c15222e26890032020-11-30 13:14:3219 secs ago PancakeSwap: XVS Binance: WBNB Token0 BNB
0x8c600bf95ede255c79dd5581e8a3a6e0446d03c4a0b3ab9a7c0682947c15222e26890032020-11-30 13:14:3219 secs ago PancakeSwap: XVS Binance: WBNB Token0 BNB
0xd77ee377947ca74aefd5ef0d6367ec78393e2dd544a8fc1d8c4042892ea030b626890022020-11-30 13:14:2922 secs ago Binance: WBNB Token 0x555ea72d7347e82c614c16f005fa91caf06dcb5a4.6 BNB
0xd77ee377947ca74aefd5ef0d6367ec78393e2dd544a8fc1d8c4042892ea030b626890022020-11-30 13:14:2922 secs ago 0x555ea72d7347e82c614c16f005fa91caf06dcb5a Binance: WBNB Token0 BNB
0xd77ee377947ca74aefd5ef0d6367ec78393e2dd544a8fc1d8c4042892ea030b626890022020-11-30 13:14:2922 secs ago 0x555ea72d7347e82c614c16f005fa91caf06dcb5a Binance: WBNB Token0 BNB
0xed611d18a5210ddc5e691ac6738c47f70dd52a14525a2ea4d65203ba49d8c04b26890002020-11-30 13:14:2328 secs ago PancakeSwap: BUSD Binance: WBNB Token0 BNB
0xed611d18a5210ddc5e691ac6738c47f70dd52a14525a2ea4d65203ba49d8c04b26890002020-11-30 13:14:2328 secs ago PancakeSwap: ETH Binance: WBNB Token0 BNB
0xed611d18a5210ddc5e691ac6738c47f70dd52a14525a2ea4d65203ba49d8c04b26890002020-11-30 13:14:2328 secs ago PancakeSwap: ETH Binance: WBNB Token0 BNB
0x13dd90916f344401ccbc0d1b4c836b47a1b7612d4c2f114be9e42d4de04815e026889982020-11-30 13:14:1734 secs ago PancakeSwap: Cake Binance: WBNB Token0 BNB
0x13dd90916f344401ccbc0d1b4c836b47a1b7612d4c2f114be9e42d4de04815e026889982020-11-30 13:14:1734 secs ago PancakeSwap: Router Binance: WBNB Token0 BNB
0x13dd90916f344401ccbc0d1b4c836b47a1b7612d4c2f114be9e42d4de04815e026889982020-11-30 13:14:1734 secs ago PancakeSwap: Router Binance: WBNB Token0.440104479379842516 BNB
0x15af520e79159611a0efe6ba7ab720f6f62b22318e50d4b793b592443b3dd34326889982020-11-30 13:14:1734 secs ago PancakeSwap: BTCB Binance: WBNB Token0 BNB
0x15af520e79159611a0efe6ba7ab720f6f62b22318e50d4b793b592443b3dd34326889982020-11-30 13:14:1734 secs ago PancakeSwap: XRP Binance: WBNB Token0 BNB
0x15af520e79159611a0efe6ba7ab720f6f62b22318e50d4b793b592443b3dd34326889982020-11-30 13:14:1734 secs ago PancakeSwap: XRP Binance: WBNB Token0 BNB
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Contract Source Code Verified (Exact Match)

Contract Name:

Compiler Version

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, GNU GPLv3 license
 *Submitted for verification at on 2020-09-03

 *Submitted for verification at on 2020-09-03

pragma solidity ^0.4.18;

contract WBNB {
    string public name     = "Wrapped BNB";
    string public symbol   = "WBNB";
    uint8  public decimals = 18;

    event  Approval(address indexed src, address indexed guy, uint wad);
    event  Transfer(address indexed src, address indexed dst, uint wad);
    event  Deposit(address indexed dst, uint wad);
    event  Withdrawal(address indexed src, uint wad);

    mapping (address => uint)                       public  balanceOf;
    mapping (address => mapping (address => uint))  public  allowance;

    function() public payable {
    function deposit() public payable {
        balanceOf[msg.sender] += msg.value;
        Deposit(msg.sender, msg.value);
    function withdraw(uint wad) public {
        require(balanceOf[msg.sender] >= wad);
        balanceOf[msg.sender] -= wad;
        Withdrawal(msg.sender, wad);

    function totalSupply() public view returns (uint) {
        return this.balance;

    function approve(address guy, uint wad) public returns (bool) {
        allowance[msg.sender][guy] = wad;
        Approval(msg.sender, guy, wad);
        return true;

    function transfer(address dst, uint wad) public returns (bool) {
        return transferFrom(msg.sender, dst, wad);

    function transferFrom(address src, address dst, uint wad)
    returns (bool)
        require(balanceOf[src] >= wad);

        if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
            require(allowance[src][msg.sender] >= wad);
            allowance[src][msg.sender] -= wad;

        balanceOf[src] -= wad;
        balanceOf[dst] += wad;

        Transfer(src, dst, wad);

        return true;

                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

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of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:

    a) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by the
    Corresponding Source fixed on a durable physical medium
    customarily used for software interchange.

    b) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by a
    written offer, valid for at least three years and valid for as
    long as you offer spare parts or customer support for that product
    model, to give anyone who possesses the object code either (1) a
    copy of the Corresponding Source for all the software in the
    product that is covered by this License, on a durable physical
    medium customarily used for software interchange, for a price no
    more than your reasonable cost of physically performing this
    conveying of source, or (2) access to copy the
    Corresponding Source from a network server at no charge.

    c) Convey individual copies of the object code with a copy of the
    written offer to provide the Corresponding Source.  This
    alternative is allowed only occasionally and noncommercially, and
    only if you received the object code with such an offer, in accord
    with subsection 6b.

    d) Convey the object code by offering access from a designated
    place (gratis or for a charge), and offer equivalent access to the
    Corresponding Source in the same way through the same place at no
    further charge.  You need not require recipients to copy the
    Corresponding Source along with the object code.  If the place to
    copy the object code is a network server, the Corresponding Source
    may be on a different server (operated by you or a third party)
    that supports equivalent copying facilities, provided you maintain
    clear directions next to the object code saying where to find the
    Corresponding Source.  Regardless of what server hosts the
    Corresponding Source, you remain obligated to ensure that it is
    available for as long as needed to satisfy these requirements.

    e) Convey the object code using peer-to-peer transmission, provided
    you inform other peers where the object code and Corresponding
    Source of the work are being offered to the general public at no
    charge under subsection 6d.

  A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.

  A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
into a dwelling.  In determining whether a product is a consumer product,
doubtful cases shall be resolved in favor of coverage.  For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product.  A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.

  "Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source.  The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.

  If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information.  But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).

  The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed.  Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.

  Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.

  7. Additional Terms.

  "Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law.  If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.

  When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it.  (Additional permissions may be written to require their own
removal in certain cases when you modify the work.)  You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.

  Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:

    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or

    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
    Notices displayed by works containing it; or

    c) Prohibiting misrepresentation of the origin of that material, or
    requiring that modified versions of such material be marked in
    reasonable ways as different from the original version; or

    d) Limiting the use for publicity purposes of names of licensors or
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    e) Declining to grant rights under trademark law for use of some
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    f) Requiring indemnification of licensors and authors of that
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    it) with contractual assumptions of liability to the recipient, for
    any liability that these contractual assumptions directly impose on
    those licensors and authors.

  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term.  If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.

  If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.

  Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.

  8. Termination.

  You may not propagate or modify a covered work except as expressly
provided under this License.  Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).

  However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.

  Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.

  Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License.  If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.

  9. Acceptance Not Required for Having Copies.

  You are not required to accept this License in order to receive or
run a copy of the Program.  Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance.  However,
nothing other than this License grants you permission to propagate or
modify any covered work.  These actions infringe copyright if you do
not accept this License.  Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.

  10. Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License.  You are not responsible
for enforcing compliance by third parties with this License.

  An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations.  If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.

  You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License.  For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.

  11. Patents.

  A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based.  The
work thus licensed is called the contributor's "contributor version".

  A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version.  For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.

  Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.

  In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement).  To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.

  If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients.  "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.

  If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.

  A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License.  You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.

  12. No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all.  For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.

  13. Use with the GNU Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.

  14. Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation.  If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.

  If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.

  Later license versions may give you additional or different
permissions.  However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.

  15. Disclaimer of Warranty.


  16. Limitation of Liability.


  17. Interpretation of Sections 15 and 16.

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <>.

Also add information on how to contact you by electronic and paper mail.

  If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".

  You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see

  The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read


Contract ABI



Deployed ByteCode Sourcemap


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