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Contract Overview
Balance: 387,248.467825529630628136 Ether
Ether Value: $184,558,747.28 (@ $476.59/ETH)
Transactions: 132462 txns
Token Contract: Wrapped Ether (WETH)
Address Watch: Add To Watch List
Contract Creator: 0x4f26ffbe5f04ed43630fdc30a87638d53d0b0876at txn 0xb95343413e459a0f97461812111254163ae53467855c0d73e0f1e7c5b8442fa3
Token Balances:
 Latest 25 txns from a total Of 132462 transactions
(> more than 25 PendingTxns)

TxHash Age From To Value [TxFee]
0x78918427c0e238a9592d89ccb2d84c434ed0db8a6413da604abe7b598f4109f3(pending)0x6ec440154dd9c34e01d54779d55cd861de77db59  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0xcbc3d98e751f3e2013042c2502074fc3e87292f0dcaec38f7fd53300af09f40d(pending)0x331f1b10cb854270b419fb5502940dfe23060f5b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x0678697b6ae161eeb8d289d48409f2601d723053f3ca539497959e7c5ccda7a5(pending)0xb4eb92cff6dd11baa3bf0ccaa77330311fb30238  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.001 Ether(pending)
0xd4a3b548e1f462d08ee2fadbe779a5ae2bf8c845926380cdba840a3074de48ca(pending)0x82ee790bab425dd7161d6655358ffd7144305e5b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x6b65dd64c71813839e85e9804bc6fdc28cef210dd7df39a5c1d3642aca2fe708(pending)0xa1f457ad5c86f79f03ae713399800a8d976949c6  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.1 Ether(pending)
0x5c4c631d016ad7f1bf0c23b8a4ea3b1daa6147c008fbc87c9375ad7f01161c00(pending)0x528fa28edffe0452f10cc1a2450fbb02e6ce9a6b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0xe0c1fc159f8a7568a929a9a54a534d7bf425d82a052c8409871e04ca4f910e7f(pending)0x6ec440154dd9c34e01d54779d55cd861de77db59  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x79b138861c434d9f8ec52a9417162ae51a320ae79e47beb2f1eaff20e0a4fbb4(pending)0x10228e16100d731530cd18864a0d6e9cc087e7a6  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x47d711c784512eee7bb4ab91418ebf8b1250fbb865863eab944e4822565043d9(pending)0x1210fc0fcf0a3aebf3748de1327c7772f8ad63a7  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.025 Ether(pending)
0x6e1e9ae1c4f3077aa3dca5c0b43123c93557147c88b11d5d42c14806ecec3384(pending)0xa8ea34e63e576066e680dec69f56720a25dc332d  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x0493128429e9a601234882b6041428a3fc5c71fc0e301e1960f63265bac565e2(pending)0xa1f457ad5c86f79f03ae713399800a8d976949c6  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.1 Ether(pending)
0x4752b7fe76a8bf3c619c0162c2a2f273321cf6e83441d85ea99863f42929b440(pending)0x2e965f6d55cad05c320eb2f38ce6753037d1dbc1  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x3d753f69f732b7e2b132bd78378c84dc10d55140e1d4fb0cbd4cda08cd5f3065(pending)0xb7747c46be84aafcefdf9aed61f1225f88236224  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x70dea3ccc048975a9833a97fe45282e5feccf1f59ccbab02b64a0676fac5e704(pending)0xdbb59151b18dd72e9ac092706e93de5b5d7a9325  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x5fa7675786ef7725177a3fde64217ea5b8d812a042f1b475780d1e304940b465(pending)0x331f1b10cb854270b419fb5502940dfe23060f5b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.05 Ether(pending)
0xc86db7cbdfacca8a6c3e068d5d862b01486eb918d5ba151f3b9393973d410497(pending)0x819c9dd06e9a3a0095e61af7fa4da96b1b6246e9  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.03042 Ether(pending)
0x38fbd64713209ba8d7e83712ec7ed6cfbde39eaf00764308ada97ba30f3458b4(pending)0x528fa28edffe0452f10cc1a2450fbb02e6ce9a6b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.015 Ether(pending)
0x59df108a93ed53afd9c38e140912e3bdd3cb10694b401c896418ea47f0aed42b(pending)0x819c9dd06e9a3a0095e61af7fa4da96b1b6246e9  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x5e33ac3e9c8c32cbd608104d64758d6a00d1ac591fec66ed0ab4c5893acb5c93(pending)0x819c9dd06e9a3a0095e61af7fa4da96b1b6246e9  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.03 Ether(pending)
0xd812107b8e57a957c19df95d19beafa5af8230fd46549a5dab2370d9936af5c6(pending)0x6e9c261d10575c87fe8724c54ccd26e59f77101a  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x699ed4ab86898a98db260a2ffe90e1fb91f6d2c09d1bc91c1318a29ff2e64ff9(pending)0x6e9c261d10575c87fe8724c54ccd26e59f77101a  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0x16ee66b5ab48b5e9fe2fb081dc8f0ed372be5c62867087aa73583b4fda46612b(pending)0x82ee790bab425dd7161d6655358ffd7144305e5b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0xfa3b3f015112313ae62fac6b5c1b5db6c9f85e42720c0f8800c42ce5d1561a93(pending)0xac9ea0feb27e656e18fe33a05d08b34aa8c047c4  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.4 Ether(pending)
0x71b35c6a98f111845199577b4c3e75ff38e5419ca793b0d15a7884dc2032367a(pending)0x53eab632e67c968087bf11bda410a615f2642302  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
0xe3ef604164b2ded7e301d1d1ced868bf330c154612e0df76831971f41e831d20(pending)0x331f1b10cb854270b419fb5502940dfe23060f5b  IN  0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20 Ether(pending)
 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click here to View More View All
ParentTxHash Block Age From To Value
0x434cb167a5b7d409799b4044636cb8cd9967dc00b5c63c2fe1bac237b066d363598918110 mins ago0xc051e5495a5fe652d23553c0f7597c2a6512eea60xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.13729407 Ether
0x145a28d1ae2b04bf7f11824ee668f03468e69757588cb6ccbfd9e53fdd9e0a85598913524 mins ago0xcf67fdd3c580f148d20a26844b2169d52e2326db0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc210.1707 Ether
0x9a5eb838510d3f3a2c8ed5e61fc99c3afcbf154839b89baa69730cf9d52d0bb9598911729 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xa02059e93084a6c58daede913649d1bc2e0a11a610.299417819700696577 Ether
0xa0deb6141e45d1da8189e2c25e6b631ebaaf10e883b9997c954f1411905f77f7598909934 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x6b34fb9ea0bf935cfb468a4d45ef8541375d75cf0.16156 Ether
0x9d8eb51a8e7d7135fc8ab82fec86951c8281a2e994652001ff165986c7aba9d2598908737 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x28d5cceec91c6df4ed3c4c4c5c2e836d637146670.00591 Ether
0x3be712cc5d5b425b1ff414d6decd5c25bdc2581cf01a69d7eb89a5fad1f8193c598907640 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.035724871873696175 Ether
0x3be712cc5d5b425b1ff414d6decd5c25bdc2581cf01a69d7eb89a5fad1f8193c598907640 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.000360857291653497 Ether
0xfccc33f8fd933663923b9c900f7ebd889383b7f5d6bb165cc87a3fc230821e1c598906144 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.03624962859822243 Ether
0xfccc33f8fd933663923b9c900f7ebd889383b7f5d6bb165cc87a3fc230821e1c598906144 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.000366157864628509 Ether
0x049246af7c4f49c13e6dca71a6aa623ff2ca7d23135310efee402b933f5afa3c598906045 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x7c5475e3adfe4dab7253ae27727a60a2a36388340.257331039423567991 Ether
0x5ebb90c0cd61a3109b2a54d655719aa2ef2960300af8276a3b3aab533d5a2123598902554 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xd9b99266c42d427bb3a64f30a0242bbeb41f68300.59848 Ether
0x64466452b35f5de67e94a5366c3fc5cefeb78198f4a07b20f24678320d00ad8c598901658 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xd9b99266c42d427bb3a64f30a0242bbeb41f68301.1582 Ether
0x21dc834523939edc59fb195248130c7f2fa6fadd9d08663b3399ea9302b0a69b598901558 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x525132dcadfbb676b1d96497cda853656c722dd60.0784 Ether
0xb9527405c1491d5102de403862fbf57da22db13e894e1cde00c9976e7e7a06d759890071 hr ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.035765728489872242 Ether
0xb9527405c1491d5102de403862fbf57da22db13e894e1cde00c9976e7e7a06d759890071 hr ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.000361269984746184 Ether
0x5c77cd0eb4418e105a8679e661461e4c03e5b28d0ccceb15d37c75406ef79ac259889881 hr 3 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x6625654a83f89aaea2bdb85416f1f709ec9523c49.6012 Ether
0x140bb784812b66a6c843a87d1b15c644306639687b251f5f16516cb4df339c4259889761 hr 6 mins ago0xc051e5495a5fe652d23553c0f7597c2a6512eea60xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.13729407 Ether
0x6a69c27fb9e5d7c46e3c488fd1889847cc10e843f5d93bec7d6dcfad72881ec659889671 hr 8 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.12937959899298663 Ether
0x6a69c27fb9e5d7c46e3c488fd1889847cc10e843f5d93bec7d6dcfad72881ec659889671 hr 8 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.001306864636292794 Ether
0xe7c847ed908236ad96a97229602ab1a36982e328f9e6298fe330994f2dabd7db59889561 hr 11 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.036123495708977342 Ether
0xe7c847ed908236ad96a97229602ab1a36982e328f9e6298fe330994f2dabd7db59889561 hr 11 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc051e5495a5fe652d23553c0f7597c2a6512eea60.000364883795040175 Ether
0x790e968978dea46d97112173ce65b157b245e3fa89aaa469dcbe008c00fd6dc759889561 hr 11 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x525132dcadfbb676b1d96497cda853656c722dd60.3887 Ether
0x45a57889afac30a98e62de8b4be108ceb93fc16c080932af478a7db31ba57cd059889501 hr 12 mins ago0xc051e5495a5fe652d23553c0f7597c2a6512eea60xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.13729407 Ether
0x28aac328d8e074042856210bb4c8b574ece46ec51569107f07588279c4f6d0dd59889361 hr 15 mins ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20xc86f356dd8298a97922c71cafbd787e66958bdd60.00127 Ether
0xa1cfe60a3193983e09a39a0d6c8e97cbe8136378d166edf0c8b460779a93e5e859888691 hr 30 mins ago0xbe7088029ded190c0317d8b2bd1b19bdca2476790xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20.01848616 Ether
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Contract Source Code Verified (Exact match)
Contract Name: WETH9
Compiler Version: v0.4.19+commit.c4cbbb05
Optimization Enabled: No
Runs (Optimiser):  200

  Contract Source Code   Find Similiar Contracts

// Copyright (C) 2015, 2016, 2017 Dapphub

// 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 <http://www.gnu.org/licenses/>.

pragma solidity ^0.4.18;

contract WETH9 {
    string public name     = "Wrapped Ether";
    string public symbol   = "WETH";
    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. <http://fsf.org/>
 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.

  The licenses for most software and other practical works are designed
to take away your freedom to share and change the works.  By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users.  We, the Free Software Foundation, use the
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.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
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  To protect your rights, we need to prevent others from denying you
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  Developers that use the GNU GPL protect your rights with two steps:
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  For the developers' and authors' protection, the GPL clearly explains
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  Some devices are designed to deny users access to install or run
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  The precise terms and conditions for copying, distribution and
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  You may make, run and propagate covered works that you do not
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  No covered work shall be deemed part of an effective technological
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  4. Conveying Verbatim Copies.

  You may convey verbatim copies of the Program's source code as you
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keep intact all notices stating that this License and any
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keep intact all notices of the absence of any warranty; and give all
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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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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
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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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  "Installation Information" for a User Product means any methods,
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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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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
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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
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
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.

  If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
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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 <http://www.gnu.org/licenses/>.

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


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