Contract 0x5545153ccfca01fbd7dd11c0b23ba694d9509a6f 13

Contract Overview

Huobi: Wrapped Huobi Token
5,898,693.810816806332993724 HT

HT Value:
$41,689,805.39 (@ $7.07/HT)

Txn Hash Method
Value [Txn Fee]
0xe16825041418f3e561ad813216b1541075be47c90b068bd4974cee0a88c40f9aWithdraw154689812022-05-23 10:17:4611 mins ago0xb7cb93422fe8030325efae7b419af55d72e1f982 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x205789dcc75237f92c4636a381059a9be15dfb7a7b6e1b8eec287198df59817eWithdraw154676912022-05-23 9:13:161 hr 15 mins ago0x4d0ae976c2662933de209ab8e63afe2b4e6f5d5e IN  Huobi: Wrapped Huobi Token0 HT0.00007620752.5
0x966ae6fcb8b4200f4c07cbfa2ed99e8d35a659510a1566d2f2fd0b2ab097955aWithdraw154668152022-05-23 8:29:281 hr 59 mins ago0x2f13431a42341c1317335d9e1aaf806afcdc0f09 IN  Huobi: Wrapped Huobi Token0 HT0.00007626752.5
0x382c44f5b05177c768abfb67d84eccdb28b42deb245dc5156fd256419847bc8fWithdraw154667652022-05-23 8:26:582 hrs 2 mins ago0x66661f7d469253ada09e742c3fd5df8a42b4a101 IN  Huobi: Wrapped Huobi Token0 HT0.00007626752.5
0x631efcd57ff131d7d86c5f5ad53fb8bdf31da72f8df94c9f9aedf5eecda2fb1fWithdraw154664302022-05-23 8:10:132 hrs 18 mins ago0xc373d5f531b5116af196d3a9d56562d4d8be4b15 IN  Huobi: Wrapped Huobi Token0 HT0.00007626752.5
0x39155ee3f1d8d01331bce961ad7838329e0bcee8ad26091ea02fbbb3f68bb81cDeposit154661232022-05-23 7:54:522 hrs 34 mins ago0xad4b9081ad26dc6342c4a9ff260a7e481fe60fcb IN  Huobi: Wrapped Huobi Token12 HT0.0001011195 2.25
0xabb46104f1c214b54e9680d7f6140ee273a9821a91f83e8a1819641270523c09Approve154658892022-05-23 7:43:102 hrs 45 mins ago0x9a9de6f877bc84acfdf806cf181a75bc6fd6f403 IN  Huobi: Wrapped Huobi Token0 HT0.00011602752.5
0x665b59899d33152eac904b285f8ea7da8363ea4939cf58f99f5ac3c3eab4fa3dDeposit154658512022-05-23 7:41:162 hrs 47 mins ago0xad4b9081ad26dc6342c4a9ff260a7e481fe60fcb IN  Huobi: Wrapped Huobi Token13 HT0.0001011195 2.25
0x674ab55216e50a8a9fb35910c9007a27cdde4b82274c39bd849c9cb55dcb6ce2Withdraw154656192022-05-23 7:29:402 hrs 59 mins ago0x4b1c07537696264b7dc7db469e51cb97e96479b5 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x48f14c181c08ef2bd454494e49e097a5f931b4d527543e86248f9f29c79cbbe0Withdraw154655982022-05-23 7:28:373 hrs ago0x11a795e2249860563ed100c4e74423281b7dba31 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x7a24bd72a24f400ae2a095f9819e30b3d336b38bbe1a95f32f85044f4f1e6974Withdraw154655802022-05-23 7:27:433 hrs 1 min ago0x807480b2bc63ef6cd89c79f33e117540228b8254 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0xae9e2f90e110beef6f42f2a3e06e2abfceeb90464ffaf093ed714a2788ab7475Withdraw154655592022-05-23 7:26:403 hrs 2 mins ago0xe330940be7ec8bb9e49b5c9570ec7ec8d83da268 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x6788a8891b5fa6ce569f1b0dbf70bc590d84096cfa795db7830bd2fadae35612Withdraw154655342022-05-23 7:25:253 hrs 3 mins ago0x0a325628381fbc15f905d395e16588c2cde632c2 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x11164abab06ce2f1979538cea2da2e05105d57d2463ebb01746447477b5f7649Withdraw154654922022-05-23 7:23:193 hrs 5 mins ago0xfe2afa138d89725c460b48149868844f258987f8 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x4c4a06a5d3fc6cfa4ca52da829634be2821cf086300434a97027d22db0ec3beeWithdraw154654642022-05-23 7:21:553 hrs 7 mins ago0x9f10cf88bb4ef1ce899afe2a88e0c9d0f8f19462 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0xc285b46ea11227f24700404119d7a2fad8b1fa8b4ccca4e862afcd139f1fd4b7Withdraw154654402022-05-23 7:20:433 hrs 8 mins ago0xcfc575d3044a470a0ae8515c2c43f49b9a1321ee IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x536c7620703f14513dfa04e1287b954d1bd80d693d43b1ac4735e995c891209aWithdraw154654212022-05-23 7:19:463 hrs 9 mins ago0x35482260bea362a0cf7385535ef0743fb64dfdba IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x4b98a86d704686a589331fca256ee0af2217540b7f0dbd4dac57d237c1a3f14fWithdraw154653982022-05-23 7:18:373 hrs 10 mins ago0x03469a3467e0c0481a7b2993f93d045ac98a3a54 IN  Huobi: Wrapped Huobi Token0 HT0.00007623752.5
0x0f2409da4215031ccb1e5837f8ad1a331ea66127760ad71dae884f605160fd8fApprove154652332022-05-23 7:10:223 hrs 18 mins ago0xfe3a042c6c7c8aabe6cc6c42ea87caf6be0bd547 IN  Huobi: Wrapped Huobi Token0 HT0.00011602752.5
0x540438c2574162acaba6a1761bd7bcf776f4ff35d79abc063fd91d909e351f85Approve154651262022-05-23 7:05:013 hrs 24 mins ago0x979b0be026dd14d06d475d2b3d6ef615320d7a71 IN  Huobi: Wrapped Huobi Token0 HT0.00011602752.5
0xdfa7523df494a3d407ab6f3ddb3f77cf93477582abd0e586322f90e9e755d1f1Approve154645962022-05-23 6:38:313 hrs 50 mins ago0x03559f0a3a1f07261db35b5291c40e58657148e1 IN  Huobi: Wrapped Huobi Token0 HT0.00006531752.5
0xffe46a71782f01a7b04c517fef5e65f1445c57c985fc673cc482aed9eecb2827Deposit154639682022-05-23 6:07:074 hrs 22 mins ago0xad3baedef8e73c57174a6806e0bfd1b597876d29 IN  Huobi: Wrapped Huobi Token180 HT0.00006264452.25
0xe87caaf3d39a61b88770ff238d5b2465647a8ae29fdfbcbb8618009483c0478eWithdraw154625452022-05-23 4:55:585 hrs 33 mins ago0xe9f09de91ab0df698e80e5c3aca6f42afa48ce02 IN  Huobi: Wrapped Huobi Token0 HT0.000099069753.25
0xbf232ade02e4366079213378d9502abe17f46a89cb19aabd2d21cc5a1db2d1faDeposit154600552022-05-23 2:51:287 hrs 37 mins ago0x859a72a7f4cadbf7f9fe6397dec7222c0a7b1e6f IN  Huobi: Wrapped Huobi Token300 HT0.0001011195 2.25
0xef2cabfe9010a163f79543cf0857a66a44e0239d7bda09f1b713ca66284b7703Withdraw154596932022-05-23 2:33:227 hrs 55 mins ago0xef65f6cc8acd21cf16812dcbbfcbcbb3566b1b9e IN  Huobi: Wrapped Huobi Token0 HT0.00006864075 2.25
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HT (Huobi Token) is a blockchain-powered loyalty point system. It is the only token that Huobi officially launched. HT supports Huobi Global business and all products, such as VIP discount, HT exclusive events, trading against popular coins and "let your voice be heard".

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x77f719576bfbf9720f0f77f6075f5cf3c1257a2deb7b746d09d2b4a57694a9e8154691922022-05-23 10:28:1949 secs ago Huobi: Wrapped Huobi Token Mdex: Router0.352397313088714024 HT
0x59e9309c1756cd20913defc8ab529c08f415fb2802fd86439e5e52c40fb3719c154691912022-05-23 10:28:1652 secs ago Mdex: Router Huobi: Wrapped Huobi Token0.27858231933 HT
0x6da8fe956dc53f4f61018c2c5d0052a59cad3132a6c188f5b5b6741e9a983832154691892022-05-23 10:28:1058 secs ago Mdex: Router Huobi: Wrapped Huobi Token40 HT
0x673f1242fe5868ab5e3843c04667ce23b1dfea51368110175cb9002a0bd9789f154691892022-05-23 10:28:1058 secs ago Huobi: Wrapped Huobi Token Mdex: Router2.818985728409567048 HT
0x153e021d749a57839e11908fcd20ee653e6763b7e90ad1458fa2b6b3e37333fe154691832022-05-23 10:27:521 min ago Huobi: Wrapped Huobi Token Mdex: Router6.612471137703689166 HT
0xa8f0df4a55aa9b22cc584f28dc30571a7b9bf35be7e129323bf09610fc0d9e9c154691832022-05-23 10:27:521 min ago Mdex: Router Huobi: Wrapped Huobi Token0.6 HT
0x41217ed03dc67414d6f7dac46f16fdf4cd62eb11459b9321de753d7d690a04bf154691782022-05-23 10:27:371 min ago Mdex: Router Huobi: Wrapped Huobi Token15 HT
0xcd05c64e48de228086521e915f313e755b276613c23cab34093bcb3b331f27b0154691712022-05-23 10:27:161 min ago Mdex: Router Huobi: Wrapped Huobi Token0.068793 HT
0x3ddec77b7ab663fdbd3e5ae5d504e240a6fc5bdd80a91ab3091e7763f316c76f154691692022-05-23 10:27:101 min ago Huobi: Wrapped Huobi Token Mdex: Router3.355966815878404143 HT
0x87f0f02df4b754701f7799a955a66ac001a5e9461aef3fad54a0bb3872bc8411154691692022-05-23 10:27:101 min ago Mdex: Router Huobi: Wrapped Huobi Token0.5 HT
0xd0281f60e2e5e1287a896cb355df3a0163baa3f3a704abe671afda2e2fafde9e154691682022-05-23 10:27:072 mins ago Mdex: Router Huobi: Wrapped Huobi Token1 HT
0x3107444d8721e6a0c5a9dea12160e984dffe93c9571a98711c80579824430634154691662022-05-23 10:27:012 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.1 HT
0x8629c4a792c69ff5db7466e173dc231ebfaa7025203f6ef4610c4d8cf90febe1154691652022-05-23 10:26:582 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.02 HT
0x049ddf9dd6474bdaaaa0bf18a9448cd4b323a44cb7f0017c12384dfce56066c9154691632022-05-23 10:26:522 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.18 HT
0x318ce992c727fe859574c9b6fba4cbc1e3d993fd62a5984e76f7759ebe187524154691622022-05-23 10:26:492 mins ago Huobi: Wrapped Huobi Token Mdex: Router0.010148167724281522 HT
0x318ce992c727fe859574c9b6fba4cbc1e3d993fd62a5984e76f7759ebe187524154691622022-05-23 10:26:492 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.05 HT
0x95d1aa11094a9a41fc93f742b74536564b8ee977723c856bb8fd125a12bb7ea1154691592022-05-23 10:26:402 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.000006815440777303 HT
0xb29ecfb69718c4f6c9a02dde8d30da48d3bfb6bbee34268181f45e756e85ca0e154691492022-05-23 10:26:102 mins ago Mdex: Router Huobi: Wrapped Huobi Token1.0886891720990518 HT
0x1b3756653d5b9f175c135a944c44b8c6e77a444f5629a6eb66c9896ca2a889e7154691472022-05-23 10:26:043 mins ago Huobi: Wrapped Huobi Token Mdex: Router0.19472511578600331 HT
0xe67f4cb9dc4b8997f83b14dd8f327b1c03bc9531ffdf1a36bbd13864c009d5db154691422022-05-23 10:25:493 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.33 HT
0xde79db849dbecd48ae7e1b08827b9a51c4a01583f9fc913f9313ae3203cc743e154691362022-05-23 10:25:313 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.099999999999999994 HT
0x944b07860d89843386f6b66277521def9cb088a5985e4fe3dd8bd3898941b170154691332022-05-23 10:25:223 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.14665528982 HT
0xc471f2efd96f8d1aa0a12d32111dd9dd9ff8af60d4fafdf02e5781ee08db9855154691292022-05-23 10:25:103 mins ago Mdex: Router Huobi: Wrapped Huobi Token2.848829030862019 HT
0x18d633ee9e66d7da56531385da58166d9adef0dd637c04e0853aca2bc849ace7154691272022-05-23 10:25:044 mins ago Mdex: Router Huobi: Wrapped Huobi Token0.076504492840308386 HT
0x4e5da2448ba44bb9a12dee7c08a79f6fcf3ab6dc6a39410eecee8db10c11198a154691212022-05-23 10:24:464 mins ago Huobi: Wrapped Huobi Token Mdex: Router28.361086365629295617 HT
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Contract Source Code Verified (Exact Match)

Contract Name:

Compiler Version

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, None license
 *Submitted for verification at on 2021-02-03

// 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 >=0.4.22 <0.6;

contract WHT {
    string public name     = "Wrapped HT";
    string public symbol   = "WHT";
    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() external payable {
    function deposit() public payable {
        balanceOf[msg.sender] += msg.value;
        emit Deposit(msg.sender, msg.value);
    function withdraw(uint wad) public {
        require(balanceOf[msg.sender] >= wad);
        balanceOf[msg.sender] -= wad;
        emit Withdrawal(msg.sender, wad);

    function totalSupply() public view returns (uint) {
        return address(this).balance;

    function approve(address guy, uint wad) public returns (bool) {
        allowance[msg.sender][guy] = wad;
        emit 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;

        emit 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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    c) You must license the entire work, as a whole, under this
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    additional terms, to the whole of the work, and all its parts,
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    d) If the work has interactive user interfaces, each must display
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  A compilation of a covered work with other separate and independent
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and which are not combined with it such as to form a larger program,
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
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    b) Convey the object code in, or embodied in, a physical product
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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
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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
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  A "User Product" is either (1) a "consumer product", which means any
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  If you convey an object code work under this section in, or with, or
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  The requirement to provide Installation Information does not include a
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  Corresponding Source conveyed, and Installation Information provided,
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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
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  Notwithstanding any other provision of this License, for material you
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that material) supplement the terms of this License with terms:

    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or

    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
    Notices displayed by works containing it; 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
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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
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  Additional terms, permissive or non-permissive, may be stated in the
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the above requirements apply either way.

  8. Termination.

  You may not propagate or modify a covered work except as expressly
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this License (including any patent licenses granted under the third
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  However, if you cease all violation of this License, then your
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holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.

  Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
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your receipt of the notice.

  Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License.  If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.

  9. Acceptance Not Required for Having Copies.

  You are not required to accept this License in order to receive or
run a copy of the Program.  Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance.  However,
nothing other than this License grants you permission to propagate or
modify any covered work.  These actions infringe copyright if you do
not accept this License.  Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.

  10. Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License.  You are not responsible
for enforcing compliance by third parties with this License.

  An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations.  If propagation of a covered
work results from an entity transaction, each party to that
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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
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the predecessor has it or can get it with reasonable efforts.

  You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License.  For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.

  11. Patents.

  A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based.  The
work thus licensed is called the contributor's "contributor version".

  A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
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this License.

  Each contributor grants you a non-exclusive, worldwide, royalty-free
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  In the following three paragraphs, a "patent license" is any express
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(such as an express permission to practice a patent or covenant not to
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  If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
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then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
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actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.

  If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
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receiving the covered work authorizing them to use, propagate, modify
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you grant is automatically extended to all recipients of the covered
work and works based on it.

  A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License.  You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.

  12. No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all.  For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.

  13. Use with the GNU Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.

  14. Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation.  If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.

  If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.

  Later license versions may give you additional or different
permissions.  However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.

  15. Disclaimer of Warranty.


  16. Limitation of Liability.


  17. Interpretation of Sections 15 and 16.

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <>.

Also add information on how to contact you by electronic and paper mail.

  If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".

  You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see

  The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read


Contract Security Audit

Contract ABI



Deployed ByteCode Sourcemap


Swarm Source

Block Transaction Gas Used Reward
Age Block Fee Address Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward