Contract 0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c


Contract Overview

Binance: WBNB Token
7,726,679.876699807889091776 BNB

BNB Value:
$5,196,114,950.28 (@ $672.49/BNB)

Txn Hash
Value [Txn Fee]
0xccf0c5034157f49c3846095bfd661b0bc4a6abefe9385c12c21dbcebb43d424b73408442021-05-12 7:05:2614 secs ago0x2711057f0090934947ae77c2203e2061211ccaf1 IN  Binance: WBNB Token0 BNB0.000309848
0xec9c4b11948d8eba46325277676ba8101499b1e0d813e3f6ec2ec540a45011da73408442021-05-12 7:05:2614 secs ago0x02727efbd745292897f4a21b8777982e3e45672c IN  Binance: WBNB Token0 BNB0.0044264
0xc125c4e4b5781d5ed95a7f64b76e5f03939a8af4a9c607edb7d8af84db0e267873408432021-05-12 7:05:2119 secs ago0x204a58d5938d5738b7ec47d6a92f1af2b29f984b IN  Binance: WBNB Token0.3 BNB0.000306166
0x09dc4892067fca4d32fa42cea94cec345dcc28544081f8971144fed552d059e873408412021-05-12 7:05:0832 secs ago0x0d94002cfd6b034a081b560e9786851a1cd967cc IN  Binance: WBNB Token0 BNB0.000309848
0xa4ad6fae12cfba897b50510e321a13377f9e4f200a3fc3a282f40fc9ee82d9fb73408402021-05-12 7:05:0535 secs ago0xe14fde3bbba7cb6d10f1e819c982d4b8a2aa0d38 IN  Binance: WBNB Token0 BNB0.000156212
0x221032aebfee85f61a1186635a50f15b299012494938092b3b65c55b0bad5ceb73408402021-05-12 7:05:0535 secs ago0xb215f13bce9fb21e3249fe42592f30706346336f IN  Binance: WBNB Token0 BNB0.000157017
0x2889a9b62b748a97ca211c359fc801310b56e37d07ab5f912d48fa659371602b73408402021-05-12 7:05:0535 secs ago0xb215f13bce9fb21e3249fe42592f30706346336f IN  Binance: WBNB Token0 BNB0.000261128
0x6d35a0da4d32435469f574fa8522142e6d3e072119e36f4126274bd43e59361073408392021-05-12 7:05:0238 secs ago0x2996f4029a974bc2c3ed73ceec0031a007c1cb30 IN  Binance: WBNB Token0 BNB0.000261128
0x2227a5833df7741c9b138b5c0909b38529c75b617fea1fb6e4869df851a4877573408372021-05-12 7:04:5446 secs ago0xb932cc684f661ae83ab532b3eee1a14582c152a1 IN  Binance: WBNB Token0 BNB0.000178624
0xddd427e8fafeead97802febcdc1e7310560cb25c905011ff06bf3fa10e601d3073408332021-05-12 7:04:391 min ago0xb5a86b765dbc4af08cc44a7cafef1cc1ca75fb0e IN  Binance: WBNB Token0 BNB0.000157017
0x44b8dbdc9ab95c47bbba92d27dbfdb8392eb897969c03ff54ecc385bef4cbe5873408312021-05-12 7:04:331 min ago0x3154ff1087411c6c60c0d4745d5968a25567078e IN  Binance: WBNB Token0 BNB0.00022455
0x2f0f8415290c762dd246b80faf0778f0494616053fe05bba526ab855184e0db373408312021-05-12 7:04:331 min ago0x3154ff1087411c6c60c0d4745d5968a25567078e IN  Binance: WBNB Token0 BNB0.000156296
0x38c073e5991a1d52f4c5c6abbda484332f60d22dffa75362e224133ef72a824d73408312021-05-12 7:04:331 min ago0x0539423969f592e1bf1e670efa67a212f72164e0 IN  Binance: WBNB Token0.197594147 BNB0.000306166
0xc49df64fba592b2837064747c5017523c7a81209478f269a84106091370760b073408312021-05-12 7:04:331 min ago0xfbde5f5303772ed4864cc192116712f2122ce8fd IN  Binance: WBNB Token0 BNB0.000156128
0xe9523ba66f5b934b9e596b8069c106dae537ce3d27c32894b829b6a355dea09173408302021-05-12 7:04:271 min ago0x9f6b760b9d8b7332e0125b0f6ab9826f6e128c11 IN  Binance: WBNB Token0 BNB0.000309848
0x358f297e1db960bc8a7e6ee6e231e2d93538f0c9e404511aee2b0c40f86cff4373408302021-05-12 7:04:271 min ago0x501eac39ff545ce3bfb2fbab2824302684cba617 IN  Binance: WBNB Token0 BNB0.000309848
0xbd79f47e124d534bd94853df095286db79db4e90a3c56245658f23d8d539adb573408292021-05-12 7:04:241 min ago0xe62653ffa86cf958e8f3a86111138c2e65a9774c IN  Binance: WBNB Token0.05 BNB0.000201166
0x1fb59fbbedfffa19699511676896718d99dec0a2cdfc657ca6e568d699e7d26073408292021-05-12 7:04:241 min ago0xd78d9a62a5db99ef1dabd9201aa59eb01e448e65 IN  Binance: WBNB Token0 BNB0.000309764
0xdee8fedccf5eb31dfe4a7a63781e099d17f47b874edf05bafc9bb32bd438906873408282021-05-12 7:04:211 min ago0xadc3c1ac7b171b5a2f7e58c52203c1af37e76ab4 IN  Binance: WBNB Token1 BNB0.000201166
0x31333d22b46e95798cf1dd3a8c041e34e61f231da64d6698af9531173f1a51ad73408282021-05-12 7:04:211 min ago0xadc3c1ac7b171b5a2f7e58c52203c1af37e76ab4 IN  Binance: WBNB Token1 BNB0.000306166
0x7ec49b41669ecffec1f49ffbe0a3440559b59250bd81b50d16966e23dd469b8773408282021-05-12 7:04:211 min ago0xc91696c3845b32efed2153faa79d964dbe1068e3 IN  Binance: WBNB Token0 BNB0.000309848
0xeb5fbcb7b7278addab81a2642ddebd655c01ea68d8d8b54a282994611a56e86c73408282021-05-12 7:04:211 min ago0x1850f34c3d95200d291e0b63ebbae8d8d02a10d9 IN  Binance: WBNB Token1 BNB0.000306166
0xe918cb1bc306e2f5fd8ccf548b18a09667e4eff2f4857f74bb4c72e26d7d165e73408262021-05-12 7:04:141 min ago0x59aa6b4cbbefbd74c3c6fad4ca6deea2b941c74f IN  Binance: WBNB Token0 BNB0.00041093133
0x5f80a20e03208c5f5c221f94461e476e8f2bf798f0f644bdcc73951192e0d96273408252021-05-12 7:04:081 min ago0x809d8b753d8e75af7c93ca87a160992c34d2e782 IN  Binance: WBNB Token0.233007161479768 BNB0.000306166
0x5e55a4f22bb6c065e1b1e426f389b86dbc3405a805f10085adf24994ba4a507b73408232021-05-12 7:03:571 min ago0x8f8e50c919b704b392c153a8c336f168ba56e71d IN  Binance: WBNB Token0.3 BNB0.00028738
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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
0x25e3d342626779f8794ca4d898c248e80358cee0affbfa609eb899420821343873408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.5 BNB
0xc3cb975f2a25319559acafa80ddadc23e772c9577ae0a91272178da81ea1dfaf73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.447376390054624928 BNB
0x8c4c9b30175c72422638c4f0ee6824011764a8e9d50aa897dce28cc714988ff173408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.004237453 BNB
0xd2a4cb81e2aae44f62f48d261602a42fe2dfa53aa1d9e004c43752efcb7eade273408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.952780203536978015 BNB
0x4c66ddcd959861c9d0fcec77c83fb12918d13730802fab7468000051a2f7a40c73408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.054858763977653745 BNB
0x49ef3769f98b4177929431e609d85d4233ef61b73e11cd363f841cdc931be9dc73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.0298943 BNB
0x66a8fe914c1dc5bca4e1524f0810ae717265c6d95264f191b96e1be288ed2e9173408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.83496543 BNB
0xfd0d8c62201fcfc34319bb898d6bffe26ca31884f30a1ff9325f9a9e8597869e73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.2 BNB
0xee15fe783b0045de40e3d6cc98cf2675afff7fb28cae1f3deec37ac55f95159573408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.06 BNB
0x7e3d24ffe0dbcb45459db9abdfeeffe9ec72172a1ae4f5cbb317a450dc1450c773408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router0.059864462100957899 BNB
0x9867fe2094ec0bc7c53b2034a7120ac3cb55b9368dd87f1c01bed4101e13b59f73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.002 BNB
0xff1e1245a1d3cbe4f90cb6ad7711f8418ce05c0b1a4ce61c47368a2945dd7fea73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.00877072765267504 BNB
0x59b1eb833de7003315234daf6a1e2c6ad2061d2265967568fdafe832aa8addae73408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.539103653193165435 BNB
0x2633677be0c7e2a9099f18171b5bbe67caa14664879e005f8b65b5ffc19066ea73408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.053905774059993389 BNB
0x00064e9445ea973c59e21f8c93b41a8e684f6f3fcf9b1bb7db3c56df550420be73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.0253844756 BNB
0xe47e8f88f03eb32a80aa383611e7ff52bfb7a6a9256e73f10ebb4fb5e4aa130273408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router0.026185246160960036 BNB
0xb1008cd86f79c67eb4441c19d79aef6c260462d119a43873086be33ae504a84773408422021-05-12 7:05:1327 secs ago 0x3e8743b5453a348606111ab0a4dee7f70a87f305 Binance: WBNB Token3.458513783078067679 BNB
0x6ec4fc45d7b0d6e0a0870808ff4c4ae6cbaeb8a024299f6d6e4cb211b588100573408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.01 BNB
0xb2480f160aa0dac66a94a745a480f2e610cf0f2e0b57e7ef5ed06b791d5c7ee673408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router1.932622454635241507 BNB
0xc26d44ffc8477d5e334519206fb37f4e0139711a57fb51b085a21aee3065a53a73408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.476861829345380068 BNB
0x201d168dbc1c3e6b002845f83f97b04ced563c99d9c2e22e2936cee609d3ddcf73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router Binance: WBNB Token0.089008648 BNB
0x040359dab2bf1264308945d968ee875e216bb8172c348b84a217ceaea6d0eeab73408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.002999950979569801 BNB
0x29721e131339ecf1f3f7bc8a3a9a2f53500c0dd52a0c4a48e038ca4c6fe1b4b773408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router0.162837814674998696 BNB
0x5a63811cbd1828984e2b97f743f42378bea17f0dea3322df5b28b5d9cbcfe89773408422021-05-12 7:05:1327 secs ago Binance: WBNB Token PancakeSwap: Router v20.26480616428499549 BNB
0x6592fd46b12e65da7c8e8e56d6eddab087bcf724291acf68dde1103f975d63a773408422021-05-12 7:05:1327 secs ago PancakeSwap: Router v2 Binance: WBNB Token0.118999416407612035 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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  A compilation of a covered work with other separate and independent
works, which are not by their nature extensions of the covered work,
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
    (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
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    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
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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
    written offer to provide the Corresponding Source.  This
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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
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
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  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
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User Product is transferred to the recipient in perpetuity or for a
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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

    c) Prohibiting misrepresentation of the origin of that material, 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
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
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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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where to find the applicable terms.

  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
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



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