Contract 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c


Contract Overview

Binance: WBNB Token
7,095,907.214786403429915945 BNB

BNB Value:
$2,355,853,045.47 (@ $332.00/BNB)

Txn Hash
Value [Txn Fee]
0x1900df411d67eef7d01f4704be719705d83f42d34fe1f94d350819b4ab9a997e84467432021-06-20 0:31:5510 secs ago0xa214ae2766d0a9758061d317efe8196573501d37 IN  Binance: WBNB Token0.47 BNB0.000229904
0xd15ef3fa3e51b7aba059af52817aeda15cedccdcfc5a2891bf2216a97bdb337184467362021-06-20 0:31:3431 secs ago0x71cb1790bff3ad5339982b91efc08ddca958de0c IN  Binance: WBNB Token0 BNB0.00022132
0x5d88399a20fb9280885b5133f210a05f89414f48a358589195e24154d745331b84467342021-06-20 0:31:2837 secs ago0xdf56a3077ff0ab5fcc593df10e8733cb2586f18a IN  Binance: WBNB Token0 BNB0.000157992
0x03cb7beb6c79dfd099162e50af0c85a561f72b2b921e06cd5cc11f228c84459484467312021-06-20 0:31:1946 secs ago0xe75b3c6f13ad4e0b03ef74d725bda191af24993e IN  Binance: WBNB Token0.002 BNB0.00021869
0xc2b5c6aa835ca8c0d82ab74684f3b08c59d2fd55fa18acc61372b4d68d36e13584467312021-06-20 0:31:1946 secs ago0x37f12d85eab61b879181185eeead0293825983de IN  Binance: WBNB Token0 BNB0.00011158
0x89a524e418c75f9a972081708ad541166ba961304f4995b2b0432028a94dacb884467302021-06-20 0:31:1649 secs ago0x7ef3214bb47b779e5ae5d5144e69664e1f786826 IN  Binance: WBNB Token0.11 BNB0.00014369
0x0693ee8975a9824a278e97951dc1709a3ba0b4793a40dc12fc1ac997c8bafbd784467222021-06-20 0:30:521 min ago0x3a9166223caf8445ef96036059a13b2607d2bd63 IN  Binance: WBNB Token0.1 BNB0.00021869
0x958fc07909e2c2b46d586bf8ee987ef84a2234739a2259f3c1009f1e9963648984467202021-06-20 0:30:461 min ago0x3439a93b9b543fd77fb63968798ce48df774ee47 IN  Binance: WBNB Token0 BNB0.00022132
0xa86295f8f4ac86fb7cd5b535619fd6b303a801421980f11989c5243cd9a1990984467182021-06-20 0:30:401 min ago0xefcdbee6a70ee37c15d0a8773640b9fe9002121b IN  Binance: WBNB Token0 BNB0.00011164
0x390399092a43a4ce2559ceee9e5f048622cd54edcb75ec47bd46b3643ee72d5c84467132021-06-20 0:30:251 min ago0x9a6ef239db26ddd5455aeff2bb81c38fd0887669 IN  Binance: WBNB Token0 BNB0.00011158
0x7dad6ce9d389301e351ab444cbe2b25876cbf0e3773ff62c97be6c509b8cbdc884467092021-06-20 0:30:131 min ago0xa45ccf8576444e7d7fe9d76a73e9ed747cbf5816 IN  Binance: WBNB Token0 BNB0.0002257464
0x2fb8b3a6bf7db6f7d3084c0c7af4c5941bc667b822686a57e7809a524c728ccc84466982021-06-20 0:29:402 mins ago0x371ecb6a91f4e136270431c0f3e6cb017a0a15c3 IN  Binance: WBNB Token0 BNB0.00011164
0xf54df4ca74e4b8d04b44194ef19b0c8e2af231e037a37663f1f48ebf4d28418884466972021-06-20 0:29:372 mins ago0x258a35308406f9b1e67692378630aaa09efd0a1f IN  Binance: WBNB Token0 BNB0.0000722
0xcf0049eef786cd1461e8745fbbbd03e228be3184e5d982ccaf305ca164270b0e84466972021-06-20 0:29:372 mins ago0x1af4a2db5d50b521389f36726385df0a159444ea IN  Binance: WBNB Token0.03937364 BNB0.00021869
0x742625c501d6a00d402e74289ba00d3019235c4090b4276f09bed5c44417d16184466932021-06-20 0:29:252 mins ago0xf6cee0b7d093d3e716461da80be035da8080d754 IN  Binance: WBNB Token0.1 BNB0.000244233
0xb68f0f89224a05b9f83a86a6ce230da5d7f8c7df602d8b9c05b583ba0c1a875584466912021-06-20 0:29:192 mins ago0xf9b1134a02f97240567802084f015b1ae32637f8 IN  Binance: WBNB Token0 BNB0.000133896
0x6bca2585d41beb6b8f0d46396fd5bf1ad60cf979181a1545cd823454fafc9a0984466832021-06-20 0:28:553 mins ago0xb82c32cebb669f9ca3254e5a816fd12f1b3ddc56 IN  Binance: WBNB Token0 BNB0.00022132
0xc2af3bdb9106c1e5a17050ba8bc30e007e38fb4f294f97b1b68814688bb9a45484466812021-06-20 0:28:493 mins ago0x3a9166223caf8445ef96036059a13b2607d2bd63 IN  Binance: WBNB Token0 BNB0.00022132
0x2e5594ed3943a7d38b591ab26bb573ee8cca323b60afd53bbc5d9b080bea67ad84466662021-06-20 0:28:044 mins ago0x1f464a707c776b867984ca4a980e76531f1789d8 IN  Binance: WBNB Token0 BNB0.00011164
0xa77d10f6ac9fd92902f395f16d3d4e7226667f290fe8fcd1119b0dfa8bde046a84466632021-06-20 0:27:554 mins ago0x1640c3469923302bff21d0d808e354252aa21fae IN  Binance: WBNB Token0 BNB0.000264
0xdd59ab067cef8e2f8054454fb0a86abddc9b2262970978b3ff6ac8a3f74e63c984466582021-06-20 0:27:404 mins ago0x000000a0c521dd28025b937b1f15141d61969959 IN  Binance: WBNB Token0 BNB0.000466545846
0x6a6f6e345e48036816757b1c7c2c5897f7130c97cf7b2d3d131ab843a62eb8aa84466562021-06-20 0:27:344 mins ago0x08376d1dc37c0d3d5f9da81e5db733bc73d882e2 IN  Binance: WBNB Token0 BNB0.00011164
0xdf44fb78fa20ed93466cf612504346c189c23cb6a621d70401e775d5073c6fbb84466542021-06-20 0:27:284 mins ago0xa3c9665ff219f401bfa5ee2e3707ab3ab576db73 IN  Binance: WBNB Token0 BNB0.00011152
0xf44e0c0bba25784abf49607591fd20604c4ae6cdd58e1d878d04b2a9ea3aef8984466412021-06-20 0:26:495 mins ago0x1640c3469923302bff21d0d808e354252aa21fae IN  Binance: WBNB Token0 BNB0.00026256
0x7b77467366f7df729a86c9bebe73f4d335fcf9195d0c6a71ad6ae7f7c08fff6384466322021-06-20 0:26:225 mins ago0xd71bb2a2968893aa908d45a8aeaa96b4ee039953 IN  Binance: WBNB Token0 BNB0.00022304
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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
0x33b31205aa5d10c124735e0d3723ebef3cae878dc0f52d3a22a83b87baabdc9f84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token1 BNB
0x25af8275ef15d7b0e684c3ef63468339b9fc14ae835bb82bf90bf093924d811884467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v20.170393088673636548 BNB
0xdb141ff201b91e471408c972c7721bae7b159b2b7d0644d8205934de2c5df62284467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.041711574860651324 BNB
0x41bb0e105b5fe0102c7218124cc58a9088b4f2ac2906cd5410276954ecaa36c784467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token1 BNB
0xad19171e4e66e50843cd3f6797701065015e2bfe094c236f9fedd90264afe84d84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.5 BNB
0x9e12e41fa44cac6fbe7423dee5e99ba94b81bb0ce7cdf1aae1eaac0b1df9c1f384467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.109 BNB
0x602d64e15bc784df002fe9ada2a765894d4273e9457d5148321a40fbec96e7df84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token1.036054618994809091 BNB
0x1aca21b540d6d17b2656632c2c2a53fe446443f411266a3e008d5fe2449d82a684467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.104384104994572969 BNB
0x4fb0adab28e380d1e9b859b0c455b4fb198bf8c45dfa174f86f69fd89ec6f65c84467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v20.010309132583029104 BNB
0xf6cc787e264bd0624a2e79bac26d5a48f01f5dee85e04cc2ce28409d068518c584467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v21.502857413741457659 BNB
0x9e6c3165c23b6cb6113c6381bbd6e0d42481e2389d7018f12a59df7e1a39d5cc84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.025885687638202193 BNB
0x3075596ea43a3f56bbfe66cab378c2c29ad4cae944dec9f471db0a7266124a5084467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.0001 BNB
0x721f00e1f5df7606b92faa171ff5b43308fe882ce9f43e142b06d7495493427984467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.1 BNB
0xdc01a308e888cea809cd011fdeb424c8c75664491344f1196f7c3b72ce2b7bb184467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.23 BNB
0xe05b44eb4deff121b037419c2af4369346b9778780eab429bbce8160b8bd523584467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token4.5 BNB
0xcc21ec3622398c6e05d02dfb36aead2c6d6a86fac93c7e5014ee40e3b80c44cc84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token1 BNB
0x2472ad7bcbcc992af0e0b08bf7cd747af96ddcf96299255d4c32f9a633f4565d84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.3 BNB
0xf0973adb8fa8955d8794a764366feedf88f58d7b113a5c333c2caba2b3ad283784467362021-06-20 0:31:3431 secs ago 0xdef1c0ded9bec7f1a1670819833240f027b25eff Binance: WBNB Token0.0495625 BNB
0x41bbbb837bf83362b6b3a25da4f4107f37d83dc930cd610a25148e563478300484467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v20.034272147480446122 BNB
0xee588a6f9476c4e3034e85c2fc2bdacc6c7d640ef562c64ca89a21ff13f3fba084467362021-06-20 0:31:3431 secs ago Binance: WBNB Token 0xa86b6018ffb7d29f9a3ab59ba27d9e424c1e28120.165014441631602344 BNB
0xee588a6f9476c4e3034e85c2fc2bdacc6c7d640ef562c64ca89a21ff13f3fba084467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v20.153904533186606129 BNB
0xa2a9b6f32dfe2fb8918a1dbb8eb5a2762131eb08090652afdd0d0c91f7f9f40b84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.223575 BNB
0x5e763f136b41aef54a5ec58c111b0d1ac3772be5b65c7815125753d79ac5a43e84467362021-06-20 0:31:3431 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.049999862733036827 BNB
0xb509fc7fff6ea08b9bddab1fb3a0cf6102ccd5e7116be242ff9882fd87ac153f84467362021-06-20 0:31:3431 secs ago Binance: WBNB Token 0xc1e16013a158d57a60d6aa5bb3108722b0ac6df51.411148205603223111 BNB
0x753c546bc7115b408dcc5bf5dc8f64f5cae06090547f712e72f8a3bf1fca3ac784467362021-06-20 0:31:3431 secs ago Binance: WBNB Token PancakeSwap: Router v21.606156407873561983 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

 Copyright (C) 2007 Free Software Foundation, Inc. <>
 Everyone is permitted to copy and distribute verbatim copies
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  A compilation of a covered work with other separate and independent
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and which are not combined with it such as to form a larger program,
in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit.  Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.

  6. Conveying Non-Source Forms.

  You may convey a covered work in object code form under the terms
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
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    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
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    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
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    d) Convey the object code by offering access from a designated
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    e) Convey the object code using peer-to-peer transmission, provided
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  A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
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  A "User Product" is either (1) a "consumer product", which means any
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  If you convey an object code work under this section in, or with, or
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if neither you nor any third party retains the ability to install
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  The requirement to provide Installation Information does not include a
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  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

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  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
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a further restriction but permits relicensing or conveying under this
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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
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  Additional terms, permissive or non-permissive, may be stated in the
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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
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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
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provisionally, unless and until the copyright holder explicitly and
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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
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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
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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
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  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
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  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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