Contract 0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c


Contract Overview

Binance: WBNB Token
7,296,917.823729882830567019 BNB

BNB Value:
$2,201,553,076.60 (@ $301.71/BNB)

Txn Hash
Value [Txn Fee]
0x49053f6accdaf01f177cfcc24e536a547084763aafa420f839590e97a0f81a95(pending)2021-07-25 9:18:181 sec ago0xab52ea67b9300c512ef76d5e10a357bd0d793ba6 IN 0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c0 BNB(Pending)
0x57ca270f0e897e06bad369392ed775c2e03f5da989f95785ddf742c737970f0894617022021-07-25 9:18:0316 secs ago0xa91cc0ccf3dc658b6a7b2089da962299c2da6ea7 IN  Binance: WBNB Token0.4 BNB0.00021869
0x25ee937fe1da3db9591fd90cdc611db73cd6e084bb408e43c228dad5c38e739494616992021-07-25 9:17:5425 secs ago0x750943118ecf82bd3053da798bbc7067b84b71be IN  Binance: WBNB Token0 BNB0.00022132
0x897341721a16dadc6a344edbed657a27c196b153f6f40b7e8677854d14e5a3df94616902021-07-25 9:17:2752 secs ago0x3eea0f8cb03c581b01a00d1b44240e81c12854e8 IN  Binance: WBNB Token0 BNB0.00011158
0xf8f5d998cf81d4c4205894fd9d6d28807df49af05c39e493d478ab51a989b07994616732021-07-25 9:16:361 min ago0x57868d856e083930107c19d65d18117a8bf36e8c IN  Binance: WBNB Token0 BNB0.00011164
0x2e7899f3227f3f17a629dcdeaab4e1cfb45b664a1ee13237aec5372f43b0845294616682021-07-25 9:16:211 min ago0xc5e60981d64bbfc5b59d8c68e5245467eb6212cd IN  Binance: WBNB Token0 BNB0.00018409
0x550ce82c842416264956e648b0cb0105da17dbfff170e5f1dfe02488cd22e69494616412021-07-25 9:15:003 mins ago0x5c05b4b2274d1ef9c64f1dac1eaf2851bfeea464 IN  Binance: WBNB Token0 BNB0.0001978384
0x31b87fe746d4e986f82b8f91c8a6c9e04e0134208cb2b0293834b0c594ce588794616312021-07-25 9:14:303 mins ago0x23b97f24b7daeb892257dd745396c2b2865ce8e4 IN  Binance: WBNB Token0 BNB0.0001117
0xde382fbb3f6b7a1ed3587069a3397aa1d584e4e725f904d175c9ead48390325a94616202021-07-25 9:13:574 mins ago0x103b609e9795025888044b903724b4a04d28ab20 IN  Binance: WBNB Token0 BNB0.00011158
0xf44531330089ee505d45e98bbec5970d504f8ad5f011e1ef169b1996f2c4ae0694616172021-07-25 9:13:484 mins ago0x09ab1e70af3bc1c52c50ad3973dab4c3b055f98b IN  Binance: WBNB Token0.01 BNB0.00014369
0xf5d198767f13e90684060dbcb3e098a7bf9953d00df6839db58db82ef527b54094616152021-07-25 9:13:424 mins ago0x2b127dab7233ecd0a47aa7485edb417bc779b56d IN  Binance: WBNB Token0 BNB0.00011158
0xd0e413505ef213533572fd8247dcacc7fd0e51384f1f70aba77d33dc907bd35a94616152021-07-25 9:13:424 mins ago0x282d0c2fabfe4a099ea6993331d2c00195289ecb IN  Binance: WBNB Token0 BNB0.000220692
0x795790540e45ab73c4fd9b0ff1bcc1e008582b61ed63c362d1a26e1bd418d28194616142021-07-25 9:13:394 mins ago0x890ad1cb8d253306311c0e3bce95a7d00cb53d27 IN  Binance: WBNB Token0 BNB0.00022132
0x4ea3ad13aebfc503d3f1f7facfa0f13270ced9624da17331de1537902266536694616072021-07-25 9:13:185 mins ago0x3d27d6e9916cbba3a3e49d5a39328a37d3251705 IN  Binance: WBNB Token0 BNB0.00022132
0x98b8af1a82aaa7ea362f1f9ad55edd22ed5fd94544584b5dad0b4ab4bbdf6b4794616012021-07-25 9:13:005 mins ago0x9eb5abc3d19475ceca502ffa2915c45a0027e2fc IN  Binance: WBNB Token0 BNB0.00011158
0x106bd511da7165524aa7972535f981a172796b3b93f6d406aa2a9c6ccc7633d694615932021-07-25 9:12:365 mins ago0x1d2297ffd58316bf628cc280ebda245edfd32ec0 IN  Binance: WBNB Token0 BNB0.000137904
0xbe8a7766548ed86d42b5afc7b20133c9b9f1cec066568f2cf0794671e43fa18994615902021-07-25 9:12:275 mins ago0x6bbcc8b410696f6717a6b24dd370866abc40b27f IN  Binance: WBNB Token0 BNB0.00011164
0x63455652822058a31d28dc813b46f4dd3346cfba273af09011c776475680b81094615792021-07-25 9:11:546 mins ago0x09ab1e70af3bc1c52c50ad3973dab4c3b055f98b IN  Binance: WBNB Token0.001 BNB0.00014369
0xb1ae3b5df7167aab5d9db03e9d1e2c2a6e2bcec787d8c7282045b0fc5a1b7b6f94615792021-07-25 9:11:546 mins ago0xa0435b371d8a5a5e22d1113604748c273c9c05f0 IN  Binance: WBNB Token0 BNB0.00010897
0x709fd9154cbec43f9c2e23c527b472c4d6ad30ebf3508d418f827092d4d21ed794615732021-07-25 9:11:366 mins ago0x1d2297ffd58316bf628cc280ebda245edfd32ec0 IN  Binance: WBNB Token0 BNB0.000147144
0x08db4a944a9225bbae284d4903ef9d0055c3c5eb7bab89b3f42f906df5482dae94615712021-07-25 9:11:306 mins ago0x09ab1e70af3bc1c52c50ad3973dab4c3b055f98b IN  Binance: WBNB Token0.231 BNB0.00021869
0x3983f93a25c50db2b84a3d3c084e201c83d8eff4a3800b3a82614430f59800e394615642021-07-25 9:11:097 mins ago0xbe61359a90eea3be6b8169ac2a098b0945e1d556 IN  Binance: WBNB Token0.2 BNB0.00021869
0x46ce4c7aee99f28595cb39ea646ba72475bf948c3d175d5baa25b2749f00d8a194615632021-07-25 9:11:067 mins ago0x1d2297ffd58316bf628cc280ebda245edfd32ec0 IN  Binance: WBNB Token0 BNB0.000262344
0x7a7b42019e6ecc091c2982202dbbdeeb0040d4385b9dc7c3bd3003b6edc4bf9594615562021-07-25 9:10:457 mins ago0xc7f7a195b48caaf1874257b4f0d1dc1a7efd1c2b IN  Binance: WBNB Token0 BNB0.00011164
0xb1ac6308d22f53f641459781f3cb82141f02bcc7dcb48dc4530b42e66eba957794615562021-07-25 9:10:457 mins ago0xcfbd9100982b951c378d1eeaffd917354c12e161 IN  Binance: WBNB Token0 BNB0.000116150256
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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
0xf04ee22ca739e709bbe882d1ae256d92d81204db471a9dd92b7320333ca7553494616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.005 BNB
0x7f3b7278524998bbbed38e6ae78375aec6d9a055c931eca16794726475a332ed94616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.153384520277904449 BNB
0x7f3b7278524998bbbed38e6ae78375aec6d9a055c931eca16794726475a332ed94616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v20.153384520277904449 BNB
0x7f3b7278524998bbbed38e6ae78375aec6d9a055c931eca16794726475a332ed94616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.497134145 BNB
0x555548450d9f12a1fabb620388b6185b88bd308622809dd1bf52c58e40e3b23c94616962021-07-25 9:17:4534 secs ago Binance: WBNB Token 0x617a7d4dc1944ba5969f83a0db4143d63202e03f0.198491682490769569 BNB
0xb891b899b840bb3e1c688ff694ddeb8185d2fe0a4f7d64cfe70e778145fe107294616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.8 BNB
0xba39832bfe12a379c9595d719e2ac4141154b960a4ecc63932a092b05b18d80794616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token1.5 BNB
0xc3a24f2ed2f0155862c8801e1caedbad4e2ef699f628d34101fadd497cb7157494616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.023730275902246341 BNB
0xc3a24f2ed2f0155862c8801e1caedbad4e2ef699f628d34101fadd497cb7157494616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v20.023730275902246341 BNB
0x0d304c2938224fe8ebc0f1282edad1842fe73f911ce3e9ae142cf9a7cc419ac494616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v21.172385648603778631 BNB
0x15ac8d3db1f652a0d0c661e85127706882106f415ba35dd588a464407b38fed994616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.1 BNB
0x21d369d2bdf83307fcebbe2d89e29c2483d7906244cfbbde000283402b9942f694616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.01 BNB
0x6648adf5c392c69c71dfb1756b0f21e8ae1c780cfd622d02ca9dc9b13fa61ace94616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v20.070874483616351522 BNB
0x9279d3cc2a5b0a12f07cf6f845fec69c2b0953c77c9af0e9e9e9297f6c49e8bc94616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.1234279 BNB
0xd6a66fe4b17625f6530c52befd2040745fea48f1c488a0d4f075a1ed6b30fb6694616962021-07-25 9:17:4534 secs ago 0x3a6d8ca21d1cf76f653a67577fa0d27453350dd8 Binance: WBNB Token0.59191492687595905 BNB
0xc21130edec4607e12137a0e90bad5234f08a76a9d8ac52931bcfe3ac8f110e0a94616962021-07-25 9:17:4534 secs ago Paraswap Binance: WBNB Token0.70321 BNB
0xac4b83d438264fb438c90d0b77e78e5468da62f29de5eac5cac3072c138bb7b994616962021-07-25 9:17:4534 secs ago 0x9824bf3f19aa79c84d78e556bca67ec330b3ba75 Binance: WBNB Token1.1 BNB
0x1c8712bb3d9bd2d2c24dfbf55cf5f4bdc45bc658712708d70218f95a0c12203294616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.3 BNB
0xcbb54db027e8ecd793ba32cd1906bffa6b83d898ca3c28920c00af170c30673394616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v20.117966236253520955 BNB
0xb8b8564fe57ebda97d10680fff150c2f99f2b7de50e450080243c4b800190a6994616962021-07-25 9:17:4534 secs ago Binance: WBNB Token 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b70.17275429939534877 BNB
0x9408c6fb8beffd628759ba9d1d246104af343a51248d6c0bad58b65f7eabdeb094616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.324424819108444744 BNB
0xb5183f975178b26a3630bd4c7b2dd6628588a5aca83cafd2f688c03d4f15af4f94616962021-07-25 9:17:4534 secs ago Binance: WBNB Token PancakeSwap: Router v20.276205680460149876 BNB
0x21a89847892cbf44632950fbac955afb6e4b2b98159296c406f2dffb89e6dae394616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.15 BNB
0x2e85fffcbc8efbf07b22ec6b80c9927caa34db1c7a8f8ce1117de3447567026794616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.089089894275834895 BNB
0xae60dd7d475949fe4a52f8f7440adaa85c4d37b436f933862998f74630688afd94616962021-07-25 9:17:4534 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.051 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
 of this license document, but changing it is not allowed.


  The GNU General Public License is a free, copyleft license for
software and other kinds of works.

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GNU General Public License for most of our software; it applies also to
any other work released this way by its authors.  You can apply it to
your programs, too.

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    d) If the work has interactive user interfaces, each must display
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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,
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"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
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  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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    b) Convey the object code in, or embodied in, a physical product
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    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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  A separable portion of the object code, whose source code is excluded
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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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  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
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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
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for which you have or can give appropriate copyright permission.

  Notwithstanding any other provision of this License, for material you
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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
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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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  If you add terms to a covered work in accord with this section, you
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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
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  However, if you cease all violation of this License, then your
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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
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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
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this License.

  Each contributor grants you a non-exclusive, worldwide, royalty-free
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  In the following three paragraphs, a "patent license" is any express
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(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
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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
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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
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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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