Contract 0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c 8


Contract Overview

Binance: WBNB Token
7,699,954.237759315943221275 BNB

BNB Value:
$2,566,856,744.70 (@ $333.36/BNB)

Txn Hash
Value [Txn Fee]
0xc84049e7ce7290a890104d475df310d7b433100f1c96c8611cbbd21037906c5697573732021-08-05 2:29:3044 secs ago0x7aada85222075332f9480c38207e38371a593c35 IN  Binance: WBNB Token0 BNB0.00022132
0x84c7d4edbda8d80220ad5d0207bdb4a96141619b6f5ae909c983bdfb9aa036b297573702021-08-05 2:29:2153 secs ago0xc6a65572c573a8d12e1914bf5ffdebe359a4023c IN  Binance: WBNB Token0 BNB0.000150384
0x3122af8d75d0b3184d63dc3889f5d70aa9ef3703094d4b9a0895bab607b8c0fd97573652021-08-05 2:29:061 min ago0x398097ba2e11c8400383a9a6358c9714d3a57699 IN  Binance: WBNB Token0.83 BNB0.00021869
0x81112cb969bd00da8fc05f3c4be1182d4c2f3a9179df024a439e008d298117e197573542021-08-05 2:28:331 min ago0x11e9a4862100c9dbeef34bb3beadc650ba6ffef1 IN  Binance: WBNB Token0.01 BNB0.00014369
0x1ebb4154dc0e980487237975c10f71f7c12127ae44d7cb0dc46735f51aacd15e97573532021-08-05 2:28:271 min ago0xe5ca2b91d9c7a149a22fa156ab740dc862066221 IN  Binance: WBNB Token0 BNB0.00011164
0x9f183ba03f808ea33c9e02c65526fdee7c01b2c86b058ca0efa01f469b3c001497573352021-08-05 2:27:282 mins ago0x2576e05922b172991da44713f643250a1dd94a1e IN  Binance: WBNB Token0 BNB0.00011158
0xc74b7c17c7258d3366dd06c6f6e6f595c3c2b877bdc05f4abd56a559424ec36397573312021-08-05 2:27:152 mins ago0x44dcea9f1d679d6dc4c521afab6d1445efbe1ecc IN  Binance: WBNB Token0 BNB0.00011164
0xa63f46505f7089fc6b6cf0606d2be4e466d1730deda617ac1864f258e612d39997573242021-08-05 2:26:533 mins ago0x2245b0db38f58a5aae548b763585a4ab10e87cb1 IN  Binance: WBNB Token8 BNB0.00021869
0x349cd0989f7c64d2086998d04cca39661bcb7f7674fd70403d549ecf2b29834097573202021-08-05 2:26:413 mins ago0x5cfa559eab9441135e42407626d4fe79ae5a636a IN  Binance: WBNB Token0 BNB0.0002257464
0x3f11e7e6241f9f59eaa244280a5e72ceb119a67e7634b179734d065c0857d84597573182021-08-05 2:26:353 mins ago0xd1c2eff4ffd2dc018f230815b82a6eabbd21310e IN  Binance: WBNB Token0.05 BNB0.0002230638
0x79303bdd8e5bb2bd7de2d42f7ce7439ba6dcf75e91be75b39723600b0ecacb3197573062021-08-05 2:25:594 mins ago0xc80718299b781cd2d52a5a705e904f9a867f061d IN  Binance: WBNB Token0 BNB0.00022132
0x163c02dbad6aaa3376a00fc53b533172488ee54a84f86bc5219009365db757c997573032021-08-05 2:25:504 mins ago0xaaad09f6020e5bc809613688cb39d3afd3028e42 IN  Binance: WBNB Token0.3 BNB0.00021869
0x0258837fc760f1273aacb9a6a8cee01b14d34466ae2337221d2aa1b1a99e5bdb97573002021-08-05 2:25:414 mins ago0xf52e57090c454214e8fbb62734eae50b78ed9fb7 IN  Binance: WBNB Token0 BNB0.00011164
0xb7cbf2f347a853259b9f695fe1be951b388a5e5b9baa744fe5301db38bb65f4597572992021-08-05 2:25:384 mins ago0xac2969f19f1faef46fe10992e436410b17a4c3df IN  Binance: WBNB Token0 BNB0.00011164
0x904a8490cce24032f2dad1b0dc48be4762b25fcb6df570dca5b9c26c671ffa1697572942021-08-05 2:25:234 mins ago0xa1e4a6386d2a6ba0fe62facf37b6720ec4393237 IN  Binance: WBNB Token0 BNB0.00022132
0x8c7a96d804805dbdf900ce266e4c92df9d0f07b1362c748959ec30f30bbc660997572932021-08-05 2:25:204 mins ago0x03833c09eb1005077a732c1cab661079af3b540b IN  Binance: WBNB Token0 BNB0.00011164
0x4da1b98819a0454a5c0178635074a5e4b1a876f85229072750282dea2da2bba797572702021-08-05 2:24:116 mins ago0xb6a638b911566cdff7965360b8f7d55935eed572 IN  Binance: WBNB Token0 BNB0.00011164
0x366d0093bf0f1307bac48fdd336d8ea23cec2ea471ee875d9d89405b20de402997572682021-08-05 2:24:056 mins ago0x2d0140c78f8a8b07fd3f908ae7a480d77ee3e489 IN  Binance: WBNB Token0 BNB0.00022132
0xbf8d77ca07b3fba40fb1f62c1f0d29b136a6c5c4b5e46e3c39e8f2cf3107256597572612021-08-05 2:23:446 mins ago0x451ad05cb6927431f3ad3c488816c31142fab1ee IN  Binance: WBNB Token0 BNB0.00011158
0x34568d731af2e6be8559992b1d576d7a552d2cd03cdcddb9992d4cbcfafd440597572332021-08-05 2:22:207 mins ago0x1f11efde92f7155f7454a168e04591e991370f45 IN  Binance: WBNB Token0 BNB0.00022132
0x15e6b5275e2eaafa9dfb474aa73f8b543790caf9307a8e5db245c0d3fed4655b97572262021-08-05 2:21:598 mins ago0xa1e4a6386d2a6ba0fe62facf37b6720ec4393237 IN  Binance: WBNB Token0.09132358 BNB0.00021869
0x31e12c2b5adcca8217e143c3d31fd60bddb41e9b14c6b567a7121178e08c70ed97572242021-08-05 2:21:538 mins ago0x919d02b877c6b0558360ae979928f5bc1b7c1a18 IN  Binance: WBNB Token0.15 BNB0.00014369
0x17d239febade059de3e4af40812c4d885a603cd3dec483f96c1e6d06c4cad3f397572192021-08-05 2:21:388 mins ago0x1f11efde92f7155f7454a168e04591e991370f45 IN  Binance: WBNB Token0.197425527324875 BNB0.00021869
0x9b6f39bfe9b84922dc47e43c2b9a8013504100e631d76718799f1bc3096ad85497572122021-08-05 2:21:178 mins ago0xac000d84b3e56d629df893de19108b330e692e8e IN  Binance: WBNB Token0 BNB0.00025891
0x18cc3f41f5e62a0dd7d95cdc74543f65c3556cd11d33276b1949737be04017b597572092021-08-05 2:21:089 mins ago0xba42efccc7ed5f9f84d0ce3497beeef4dc90c716 IN  Binance: WBNB Token0 BNB0.00011164
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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
0xc8d8cc916f5a78fc3b3bde5f23a7c4f576f19688c47de895fe4ee08d9274638097573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token0.151756583726483728 BNB
0x552102b26fe81a2ee9c863125aa3b08d901e64256c4b9c4a28c32f137f441c1997573622021-08-05 2:28:571 min ago Binance: WBNB Token PancakeSwap: Router v20.050155865074834623 BNB
0x6f7230746407e1d37db18b7bb053a8f714d22b3012f20dbb551c1b5fac0905c797573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token2 BNB
0xb4a92629116987d9808d6b4832667ce6e02af5d6515c938b3e16f9c665eb5b4597573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token1.75 BNB
0x76a681399771aafac7d9a72712404a83aff5a1f658e1cbe4f0a13589415be76c97573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token0.00955533905435252 BNB
0x76a681399771aafac7d9a72712404a83aff5a1f658e1cbe4f0a13589415be76c97573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token0.004021909007101629 BNB
0x76a681399771aafac7d9a72712404a83aff5a1f658e1cbe4f0a13589415be76c97573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token0.025794971560406831 BNB
0x431bed6de86d367408115b3d771e1b7d190ffa79e430cadb9c8461921b6a4c9197573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token0.002999991406000358 BNB
0x89e1c48b48bca7ea046a88c61ca690c05a198ba8dcee90a144143766d5b3d93d97573622021-08-05 2:28:571 min ago Binance: WBNB Token 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b70.010250847699830748 BNB
0x48ab2b09884d78cae2ddab495dae99ecf1c36bc56a44f882a7dc295aa880211597573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token4.991123937048068054 BNB
0x48ab2b09884d78cae2ddab495dae99ecf1c36bc56a44f882a7dc295aa880211597573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token5 BNB
0x278b627a76e8a00525689cebda011476af1601a46295881c7d6f8ff9315f2a8f97573622021-08-05 2:28:571 min ago Binance: WBNB Token 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b70.020966756086463512 BNB
0x9124047b40f8189f618bd615598a638b93a9d5203a5261b2592edd3bc85ae39297573622021-08-05 2:28:571 min ago 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b7 Binance: WBNB Token0.594753647028837653 BNB
0x8aa62c12417a1a3c53bf8b81606c89fb08a8422487dd2e4ccde4c5c351bd278797573622021-08-05 2:28:571 min ago Binance: WBNB Token PancakeSwap: Router v20.002391095854055506 BNB
0xca232c083ba2c8e9fdda3f92c8167bdef3fba3283a179d7545a150e477810b4297573622021-08-05 2:28:571 min ago Binance: WBNB Token 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b70.013459996918006845 BNB
0xf2252d62f4d7d3cba37ec8b37169f539299d84995627cef80cde5c96c401a92397573622021-08-05 2:28:571 min ago PancakeSwap: Router v2 Binance: WBNB Token2.927688111437912633 BNB
0x0ad997bb630d7b1d9bd6585bd4a1269e4ef0b8ac28bee5f56c9045183025fcf997573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.002 BNB
0xdf0e210d869eccbf2c9f8abeab35ee55ec54e464a65e763ec9c57dbc5feee68797573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.000000808664553467 BNB
0xcb8f7a816bdda641eee2dab8fda43944e7e8a6c78790fe204d169a821f1eed5197573612021-08-05 2:28:541 min ago Binance: WBNB Token 0xcf0febd3f17cef5b47b0cd257acf6025c5bff3b70.012237545595524155 BNB
0xf7e63018245ce20fa382766f64451787baa7d57fe99908368ca074f0800781c197573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.026277216288082811 BNB
0x13be910cca53acbec8e3e159fed815458dee71c1949b6acdd1f3ec0ce5d57e7a97573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.500061414666072725 BNB
0x53413848a8568dddb48c315978e422fe563d171404049c888c5afdf4e37cc26e97573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token8 BNB
0x969f9264c4f5f935faaab150130db0d3a3bd02710c5d5112b2813c1cb9d0a01197573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.000370148882050982 BNB
0xbcde22fa6a3b7b1e3fb126bf2a1e55fcf1cad3603cfc6880bc292a0c688136ea97573612021-08-05 2:28:541 min ago PancakeSwap: Router v2 Binance: WBNB Token0.6 BNB
0x99a00f3f21fa18c47cc3848bfe4611944ff3cce438084c672f64d799890ba23397573612021-08-05 2:28:541 min ago Binance: WBNB Token 0x84240b9dcde497d9535b69920bd9c1b34adde81258.123416666446816337 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. <>
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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
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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    customarily used for software interchange.

    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
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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  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
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
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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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  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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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
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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
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
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(such as an express permission to practice a patent or covenant not to
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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
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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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