Contract 0x0d500b1d8e8ef31e21c99d1db9a6444d3adf1270 16


Contract Overview

Polygon: WMATIC Token
204,445,631.438544999099996434 MATIC

MATIC Value:
$152,823,109.50 (@ $0.75/MATIC)

Txn Hash Method
Value [Txn Fee]
0x0db833f64162fb4662b5de130a4cb0d8bddbdf49abd5ec5263acbdfed1a12ffcDeposit335869802022-09-26 10:47:1418 secs ago0x830b9eaf0c2f6bd82b63e68c7a6eba97ea7326b9 IN  Polygon: WMATIC Token45 MATIC0.00142985 50
0xde83713527b808ca26dcfa70aaa4a2605738dd6667b83abd42c4392939869949Approve335869462022-09-26 10:46:061 min ago0x1282dc041f057c5b03f65d7d8baddc29c032211e IN  Polygon: WMATIC Token0 MATIC0.00139195639730.001000019
0x0a4226235d112fd272c1e4a36d3b9247c024939be59c4a78880c2af8e904ab4fApprove335869362022-09-26 10:45:421 min ago0xe1ad4a3f64df1c98fea91af310445bd0aea6dec0 IN  Polygon: WMATIC Token0 MATIC0.00141882026 30.58
0x62b2d7d462a30fa0b4952d77e598e5ed7a0a7ae528f2e9c489d28f355b79716fApprove335868892022-09-26 10:44:083 mins ago0xa9183ecf80748a5731592d0f41106d6486559331 IN  Polygon: WMATIC Token0 MATIC0.0007233930.00000002
0x728a0911f0fe70594e6d8d8e197a660e5331ede8b2d67ac4369e6f8bee62e9f0Withdraw335867392022-09-26 10:38:568 mins ago0x5dfea31bb93e8bdd3cb243e35c1e4b68576e922e IN  Polygon: WMATIC Token0 MATIC0.00761575 250
0xac1d5a87fc6a043e539539e6e3e788846933f37aeea41c8c3b0b97d461939f75Withdraw335866262022-09-26 10:35:0612 mins ago0xbbc1670a609dddd00f27659e7937c4df314f7653 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x26c5e3351aa8164bc5cbb5806f4c4217bfc3ad71f2b3d586a80633e5c1677000Withdraw335866222022-09-26 10:34:5412 mins ago0xbf71a712c4f8362d1d1e8a0861eebdc2c68fb521 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x3ba0e5e3173ce1207d9324237e60795a5ab6b3efb485f2369de3f29e3a1b56c1Approve335866042022-09-26 10:34:1813 mins ago0x2bc319ca1f0cb08b410be7eb94bf7c123375cd54 IN  Polygon: WMATIC Token0 MATIC0.00083439053 31.49
0x262e3e947330a001a925f5cb204a6bf145e33b73696f5edae346e26a649cd015Withdraw335866002022-09-26 10:34:1013 mins ago0xe43f296b487c6d2edcdcdf41818376488987e739 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0xd1b2e37dc7f708c59ad372da36cdafbc96773f94373106e2b7c5a52892540922Withdraw335865932022-09-26 10:33:5613 mins ago0x197c85f32efd1679c6350438441cfae810020283 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0xd8b88449985768fff27c6efbb70e9cb906d123079030c88d15f2d3d12570e5b8Withdraw335865862022-09-26 10:33:4213 mins ago0x6cc9a7ac285ff17fdbc7d01230f7404bbaa1c214 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x02d2b90b074bbe9609a1ded569d1e70371223276dfa10325ae9c6df4693bab88Approve335865832022-09-26 10:33:3613 mins ago0x2bc319ca1f0cb08b410be7eb94bf7c123375cd54 IN  Polygon: WMATIC Token0 MATIC0.00166982803 35.99
0x2690c9d7d860ae96e9d12e19d5506d8006e11fee235f8b6604af1d773c546f2bWithdraw335865792022-09-26 10:33:2814 mins ago0x804dfc5716b6b02a3f98070e4f97adf6dc293282 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x8d8d42bc5f403b95691d11e6b663755a76380b517e1c4b22e0b961848f3d33bcWithdraw335865712022-09-26 10:33:1214 mins ago0x91815e66e871a42b930345db7cb8262bad3f7a12 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x96dd624025acc40053145fbf8af2f51d3ce8c20a77f5b8de93361711a6540f83Withdraw335865672022-09-26 10:33:0414 mins ago0xebd2a976ae03578be05ec7015f750bcf91eefdac IN  Polygon: WMATIC Token0 MATIC0.00091602241 30.070000017
0xd4cd61484a231eabcdecb21cd89dbeb1f1dbef15875ecb837ea8a715d4630e59Withdraw335865642022-09-26 10:32:5814 mins ago0xaa7dfb2720fac086124307a8092edffdc13c28f9 IN  Polygon: WMATIC Token0 MATIC0.001219 40
0x04b21941a075600d84d44439079d216a410ff9fae511355f85668d953f0f0feaWithdraw335865582022-09-26 10:32:4214 mins ago0x6e0b6502d17b8341fb754417bfddfb88cf3ce6aa IN  Polygon: WMATIC Token0 MATIC0.0009258305 30.380000015
0xbcd98a5f41a1d9668e4b022ceb0b5884a11710feb7edba955e04089f978fc9a4Withdraw335865032022-09-26 10:30:5216 mins ago0x2da7045e5d17fe529236d0c07c77cbb91ba429d9 IN  Polygon: WMATIC Token0 MATIC0.000979887055 32.153800003
0x937875f907fcaa3dbdcf7926ff421676202736484362ff0602a02356ec319458Withdraw335864832022-09-26 10:30:0817 mins ago0x46b2812e96757f5b6d64f994f240e26192137207 IN  Polygon: WMATIC Token0 MATIC0.000925830499 30.379999998
0x7130be1cebac90612b5f8738deae1b661dd59e10a46175a25c5f7c3aa9c4babdWithdraw335864572022-09-26 10:29:1618 mins ago0x97c0269cedb229987d2c5089ab2121cf41819d68 IN  Polygon: WMATIC Token0 MATIC0.000968538165 31.781400004
0x14856f209e1bcf5477f50ea00b2f879e41791921993a28b4a8beafdecfba078eWithdraw335864332022-09-26 10:28:2819 mins ago0xe8bb78b860f718e40aad84d8ea89b78f4da0c295 IN  Polygon: WMATIC Token0 MATIC0.00126979166641.666666666
0x0274c9c5de8778661e319d7738699447b86f8e023d929b2769d7e06a2bde7c10Withdraw335864312022-09-26 10:28:2019 mins ago0x968808136755ebe04ba820eedce212b2a211225a IN  Polygon: WMATIC Token0 MATIC0.001035334 34
0x93452866d0adfe8798f801b0424091f933eae43cbf1a89fcc31f1a7326162767Withdraw335864202022-09-26 10:27:5819 mins ago0x0c4f230b4805746f83211bbd82ed269075fe938a IN  Polygon: WMATIC Token0 MATIC0.001219 40
0xf03e262f97c2ddab8ac74476758c8bc265e141a1e9e122192278ddb035c6d5afApprove335863722022-09-26 10:26:2221 mins ago0x968808136755ebe04ba820eedce212b2a211225a IN  Polygon: WMATIC Token0 MATIC0.001714469 37
0x2535a8fd82b5e783828d16f5f0b8d0bdc3aaa6c606ef1f1d597afd1930697901Deposit335863102022-09-26 10:24:1423 mins ago0x830b9eaf0c2f6bd82b63e68c7a6eba97ea7326b9 IN  Polygon: WMATIC Token124 MATIC0.0008922264 31.2
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Polygon combines the best of Ethereum and sovereign blockchains into a full-fledged multi-chain system.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x3f1363b381416d2911abbbc4ce8b813c0a879956f13e36eca6faffa8200d9a68335869822022-09-26 10:47:1814 secs ago Polygon: WMATIC Token QuickSwap: Router12.359473169967701638 MATIC
0xfaff4b5430904de6b4b235584b5f9b50f8c10bfc1d6d23184d137392f4b93d8f335869812022-09-26 10:47:1616 secs ago 0xaf0936b1dc49b5c7444ca838a5f32080fc043add Polygon: WMATIC Token55 MATIC
0xe9c58f9f08e58fa390110af025f49f2d6979c550f27f9d46459115daca1a896f335869802022-09-26 10:47:1418 secs ago Polygon: WMATIC Token 0x10f4a785f458bc144e37065759248899549466390.134912955019067237 MATIC
0xc4dd77f82081c5b6da8bf659b4cfe11e0d2bf89cec4a3b4e8741965ce7b1a50d335869802022-09-26 10:47:1418 secs ago Polygon: WMATIC Token 0x1111111254fb6c44bac0bed2854e76f90643097d13.253212217672148945 MATIC
0x1e6456c78d1b2d442c90c033bbad99e64cc862864f15c85ec542d1b8f791f156335869802022-09-26 10:47:1418 secs ago QuickSwap: Router Polygon: WMATIC Token0.062639182185644506 MATIC
0xfc97734d9a17c6513c3716fbcc5ce14d92c60c7ff36aee4a32c7856eec2c9794335869772022-09-26 10:47:0824 secs ago Polygon: WMATIC Token 0x13927a60c7bf4d3d00e3c1593e0ec713e35d21060.076053894163582833 MATIC
0xa49b8b80e533df65db45299e7dc6efb99ae656aca57ae554bb5b57f7ebcdb9e4335869762022-09-26 10:47:0626 secs ago Polygon: WMATIC Token QuickSwap: Router2.221385540117874296 MATIC
0xdef398ea245643aac776380f61907d2925fa669d4262e553c442294b72d7e638335869752022-09-26 10:47:0428 secs ago Polygon: WMATIC Token tofuNFT: Marketplace0.05 MATIC
0xdef398ea245643aac776380f61907d2925fa669d4262e553c442294b72d7e638335869752022-09-26 10:47:0428 secs ago Polygon: WMATIC Token tofuNFT: Marketplace1.95 MATIC
0xdef398ea245643aac776380f61907d2925fa669d4262e553c442294b72d7e638335869752022-09-26 10:47:0428 secs ago tofuNFT: Marketplace Polygon: WMATIC Token2 MATIC
0x625acc3138a87e20083c325c7ba830c8dbecb6c5d90a9e8f4d3f51985d82edab335869752022-09-26 10:47:0428 secs ago Polygon: WMATIC Token 0x13927a60c7bf4d3d00e3c1593e0ec713e35d210663.265646888780550504 MATIC
0xa81d91265a8d3a4db4a17895468b938928926f07b0cf9327e5be1d1cebab0006335869752022-09-26 10:47:0428 secs ago Polygon: WMATIC Token 0xaf0936b1dc49b5c7444ca838a5f32080fc043add54.989000415050097286 MATIC
0xb13bb0df914578e751a7aefb70c1530a370ab48a5fe44f1e9d104b11af27dcd7335869752022-09-26 10:47:0428 secs ago Polygon: WMATIC Token QuickSwap: Router0.464068318046642169 MATIC
0x866a4a359a67ab6fc1f38edd290e558be4341984f829cea9e70eba698101cbb1335869742022-09-26 10:47:0230 secs ago Uniswap V3: Router 2 Polygon: WMATIC Token0.1 MATIC
0x39a4028e47d8d6d564601f55c87d942b24072fd7e6608e1807ef2a41fd904799335869732022-09-26 10:47:0032 secs ago Polygon: WMATIC Token QuickSwap: Router3.808385501527815638 MATIC
0x605aa3972c05638add6808e1d181a22bcd58d6d70c8cbce34f9c7461141c1623335869732022-09-26 10:47:0032 secs ago Polygon: WMATIC Token QuickSwap: Router0.52917511233547421 MATIC
0xbee1198545fc58df08011f027f5fef904625b0381df03456841f05d0dfaf9cbc335869702022-09-26 10:46:5438 secs ago Uniswap V3: Router 2 Polygon: WMATIC Token750 MATIC
0x385ed316c45d77a872f6e45c8d2115197a1d53bd33c499b7255d43785a8cea2d335869702022-09-26 10:46:5438 secs ago Polygon: WMATIC Token QuickSwap: Router0.383925856981402444 MATIC
0xee2991aa6863aa4b6692d3425f98b882ec1a73de7dcc2c6c860ae831b786c477335869702022-09-26 10:46:5438 secs ago Polygon: WMATIC Token QuickSwap: Router13.800264985267951162 MATIC
0x5abe2062f5225f252086208e32b8b8a6cfaa0dcb0c8b1831d95b73a707cbe057335869692022-09-26 10:46:5240 secs ago Polygon: WMATIC Token tofuNFT: Marketplace0.00525 MATIC
0x5abe2062f5225f252086208e32b8b8a6cfaa0dcb0c8b1831d95b73a707cbe057335869692022-09-26 10:46:5240 secs ago Polygon: WMATIC Token tofuNFT: Marketplace0.00525 MATIC
0x5abe2062f5225f252086208e32b8b8a6cfaa0dcb0c8b1831d95b73a707cbe057335869692022-09-26 10:46:5240 secs ago Polygon: WMATIC Token tofuNFT: Marketplace0.1995 MATIC
0x5abe2062f5225f252086208e32b8b8a6cfaa0dcb0c8b1831d95b73a707cbe057335869692022-09-26 10:46:5240 secs ago tofuNFT: Marketplace Polygon: WMATIC Token0.21 MATIC
0xdd6720cb527812df1e8632e958ef98a0b24ef2129ddd151a0331459d7964d548335869692022-09-26 10:46:5240 secs ago 0xe52d0337904d4d0519ef7487e707268e1db6495f Polygon: WMATIC Token1 MATIC
0x0c9c96a4be7c015b4c94f68e513d82a9d8305391d0efce341e3b755ba3367eb3335869692022-09-26 10:46:5240 secs ago 0xfd896db057f260adce7fd1fd48c6623e023406cd Polygon: WMATIC Token2 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:

Compiler Version

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license
 *Submitted for verification at on 2021-06-09

// DeFi multi-chain yield farms deployer & DEXs aggregator.

// 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 <>.

pragma solidity ^0.4.18;

contract WMATIC {
    string public name     = "Wrapped Matic";
    string public symbol   = "WMATIC";
    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.

  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
these rights or asking you to surrender the rights.  Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received.  You must make sure that they, too, receive
or can get the source code.  And you must show them these terms so they
know their rights.

  Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
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  For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software.  For both users' and
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  Some devices are designed to deny users access to install or run
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patents cannot be used to render the program non-free.

  The precise terms and conditions for copying, distribution and
modification follow.

                       TERMS AND CONDITIONS

  0. Definitions.

  "This License" refers to version 3 of the GNU General Public License.

  "Copyright" also means copyright-like laws that apply to other kinds of
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  A "covered work" means either the unmodified Program or a work based
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  An interactive user interface displays "Appropriate Legal Notices"
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extent that warranties are provided), that licensees may convey the
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the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.

  1. Source Code.

  The "source code" for a work means the preferred form of the work
for making modifications to it.  "Object code" means any non-source
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  The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding

  The Corresponding Source for a work in source code form is that
same work.

  2. Basic Permissions.

  All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
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permission to run the unmodified Program.  The output from running a
covered work is covered by this License only if the output, given its
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rights of fair use or other equivalent, as provided by copyright law.

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  4. Conveying Verbatim Copies.

  You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
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keep intact all notices stating that this License and any
non-permissive terms added in accord with section 7 apply to the code;
keep intact all notices of the absence of any warranty; and give all
recipients a copy of this License along with the Program.

  You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.

  5. Conveying Modified Source Versions.

  You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4, provided that you also meet all of these conditions:

    a) The work must carry prominent notices stating that you modified
    it, and giving a relevant date.

    b) The work must carry prominent notices stating that it is
    released under this License and any conditions added under section
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    "keep intact all notices".

    c) You must license the entire work, as a whole, under this
    License to anyone who comes into possession of a copy.  This
    License will therefore apply, along with any applicable section 7
    additional terms, to the whole of the work, and all its parts,
    regardless of how they are packaged.  This License gives no
    permission to license the work in any other way, but it does not
    invalidate such permission if you have separately received it.

    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
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
    alternative is allowed only occasionally and noncommercially, and
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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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  "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
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information.  But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
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  The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
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the User Product in which it has been modified or installed.  Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.

  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
    requiring that modified versions of such material be marked in
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    d) Limiting the use for publicity purposes of names of licensors or
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    e) Declining to grant rights under trademark law for use of some
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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
restriction, you may remove that term.  If a license document contains
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
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.

  Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
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
modify it is void, and will automatically terminate your rights under
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 Security Audit

Contract ABI



Deployed ByteCode Sourcemap


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