Tag Archives: Source Code

BokkyPooBah’s Gas-Efficient Solidity DateTime Library v1.00 Released

Posted on May 26, 2018 by bok

GitHub BokkyPooBah’s Solidity Gas-Efficient DateTime Library. Medium article BokkyPooBah’s Gas-Efficient Solidity DateTime Library.

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A Quick Look At Parity’s Token Registry Smart Contract

Posted on August 1, 2017 by bok

Created Mar 14 2017, last updated Mar 31 2018. Address: 0x5F0281910Af44bFb5fC7e86A404d0304B0e042F1

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A Quick Look At Parity’s Signature Registry Contract

Posted on August 1, 2017 by bok

Created Mar 14 2017, last updated Aug 1 2017. Address: 0x44691B39d1a75dC4E0A0346CBB15E310e6ED1E86

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20 ETH (And More) Bug Bounty On The ConsenSys Multisig

Posted on July 30, 2017 by bok

Update Sep 22 2017 – Remove WhitelistedMultisig from this bug bounty as it is not being used There was a vulnerability that allowed hackers to steal USD 30 million from the Parity multisig wallets last week. I work with clients … Continue reading →

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Development, Testing And Security Audit Of The CustomerDepositFactory Smart Contract

Posted on April 16, 2017 by bok

See Customer Deposit Factory and Security Audit Of The CustomerDepositFactory Smart Contract.

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BetterAuction Smart Contract – Testing, Security Audit, And Assisting With The Development

Posted on April 16, 2017 by bok

See BetterAuction and Security Audit Of The BetterAuction Smart Contract.

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The Sikoba Presale Smart Contract Security Audit

Posted on March 23, 2017 by bok

(Created Mar 08 2017. Updated with test results Mar 14 2017. Updated with multisig wallet contribution test results Mar 23 2017.) I was asked to review the Sikoba presale smart contracts before the upcoming Sikoba presale crowdfunding event. This page … Continue reading →

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The Incent Coffee Token Smart Contract Security Audit

Posted on February 28, 2017 by bok

The Incent Coffee smart contract is currently being used to test out the Waves <-> Ethereum block swapper at https://blockswap.incentloyalty.com/. A version of the contract has been deployed to 0x2c875e5ea4706b1978a41b59edf2d3af31d60e70. This contract was written by Bok Consulting Pty Ltd in … Continue reading →

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A Quick Look At Melonport’s ICO Contract

Posted on February 16, 2017 by bok

Melonport ICO is over after 13 minutes and 17 seconds as the funding goal of 227,000 ETH was reached. Note that MLN tokens are ERC20-compliant but cannot be transferred before endTime = 1489575600 or Mar 15 2017 @ 11:00am (UTC), … Continue reading →

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Decentralized Capital’s Tokenised Fiat Currency. A Quick Look At The Smart Contracts

Posted on February 4, 2017 by bok

Here is Decentralized Capital’s website, their FAQ, and their Token Contracts page. Unfortunately you need to be verified to use this decentralised exchange. Here is their IDEX decentralised exchange screen: Here is their USD.DC verified smart contract deployed at 0x01a7018e6d1fde8a68d12f59b6532fb523b6259d: … Continue reading →

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Decentralized Capital’s IDEX Is Live on the Mainnet! And A Quick Look At The Smart Contract Code

Posted on February 4, 2017 by bok

IDEX Is Live on the Mainnet!. Following is the verified source code from 0x63091244180ae240c87d1f528f5f269134cb07b3: pragma solidity ^0.4.6; contract Token { bytes32 public standard; bytes32 public name; bytes32 public symbol; uint256 public totalSupply; uint8 public decimals; bool public allowTransactions; mapping (address … Continue reading →

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Ethereum at a Crossroad as Corporate Interest Grows

Posted on January 29, 2017 by bok

Ethereum at a Crossroad as Corporate Interest Grows

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Hyperledger Project reflects on blockchain politics

Posted on January 28, 2017 by bok

Hyperledger Project reflects on blockchain politics

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The Vault Contract: Open Sourced by Giveth

Posted on January 14, 2017 by bok

pragma solidity ^0.4.6; /* Copyright 2016, Jordi Baylina 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 … Continue reading →

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Ether.Camp’s Hacker Gold HKG Source Code, Concerns About The USD 50 million Cap, A Significant Bug And A New Bug Fixed Contract!

Posted on January 11, 2017 by bok

Originally posted Oct 18 2016; updated 14:05 Oct 22 2016 UTC with live contract details; updated Jan 7 2017 with significant bug; updated Jan 12 2017 with newly deployed contract with the bug fix. This is not investment advise as … Continue reading →

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The Million Dollar Homepage

Posted on January 10, 2017 by bok

The following was written by the author of the million dollar homepage (not me). I added the contract source code below. This is not a recommendation to spend your precious ethers on the page of pixels, just a look at … Continue reading →

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Gnosis Prediction Market Platform Crowdfunding Contract Security Audited Source Code

Posted on December 16, 2016 by bok

Originally posted Dec 13 2016, updated Dec 16 2016 with bug bounty details. This is not advise as to whether the Gnosis prediction market platform is a good investment or not. This is just a quick look at the source … Continue reading →

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A Quick Look At EtherDelta’s Smart Contract

Posted on December 14, 2016 by bok

Here is EtherDelta’s screen running in the Ethereum Wallet application, executed to operate as Mist by using the command line parameter –mode mist, and then navigating to the URL https://etherdelta.github.io/#GNTW-ETH. EtherDelta is produced by https://etherboost.github.io/. Following is the source code … Continue reading →

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The Original Augur REP TokenTraderFactory Contract (Work In Progress. Note that there is a bug in this contract)

Posted on December 14, 2016 by bok

NOTE Dec 14 2016: I’ve found a bug in the original REP TokenTraderFactory that could potentially lead to a loss in $$$. I’m working with the original author to fix this. Do not use this contract anymore. A new contract … Continue reading →

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R3 Releases Code for Distributed Ledger Tech Corda

Posted on November 30, 2016 by bok

R3 Releases Code for Distributed Ledger Tech Corda

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The Golem Network Token Wrapped (GNTW) Contract

Posted on November 22, 2016 by bok

The Golem Network Token (GNT) is not a fully ERC20-compliant token. The ERC20 standard requires the following methods and events to be implemented for full compliance: contract ERCTokenInterface { // Methods function totalSupply() constant returns (uint256 totalSupply); function balanceOf(address _owner) … Continue reading →

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Trustless Golem Network Token (GNT) Selling Contract

Posted on November 13, 2016 by bok

Some individuals missed out on purchasing the Golem Network Token (GNT) in the Golem Crowdfunding Funded To 820,000 ETH Cap, as the sale was over within ~ half an hour. The tokens were sold a 1 ether (ETH) = 1,000 … Continue reading →

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Golem Crowdfunding Funded To 820,000 ETH Cap

Posted on November 12, 2016 by bok

Original post Oct 24 2016. Updated Nov 12 2016 with deployed contract and source code, and crowdfunding statistics. This is not advise as to whether Golem is a good investment or not. This is just a quick look at what … Continue reading →

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Ethereum Slot Machine Source Code

Posted on November 4, 2016 by bok

I don’t like to promote gambling, but here is the source code for your perusal. From Ethereum based slot machine. Website http://www.etherslots.win/.

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Gnosis Prediction Market Platform And Crowdfunding Contract Source Code

Posted on November 4, 2016 by bok

This is not advise as to whether the Gnosis prediction market platform is a good investment or not. This is just a quick look at the source code behind what Gnosis is offering. Reference Gnosis contracts published – bug bounty … Continue reading →

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Decentralised Gambling Game vDice Announces Crowdsale

Posted on October 31, 2016 by bok

Originally post Oct 16 2016. Updated Oct 31 with audit report. This is not investment advise as to whether vDice is a good investment or not. This is just a quick look at the smart contract behind vDice. Sponsored story … Continue reading →

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Arcade City’s Upcoming Crowdfunding

Posted on October 29, 2016 by bok

Originally posted Oct 24 2016. Updated Nov 1 2016. This is not advise as to whether Arcade City is a good investment or not. This is just a quick look at what Arcade City is offering and how they are … Continue reading →

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EtherDelta – Concern Over Whether USD 12K in Ethers Can Be Withdrawn After The Gas Reprice Hard Fork

Posted on October 16, 2016 by bok

The Ethereum blockchain will be hard-forked this coming Tuesday on block 2463000 with the main changes being the gas repricing of opcodes (EIP 150 version 1c). A concerned redditor asked There is over $12,000 USD in this contract! Please can … Continue reading →

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Decentralized Capital Open Sources Their Asset Contract Code

Posted on October 5, 2016 by bok

From Decentralized Capital Open Sources Their Asset Contract Code: We’ve open sourced our contract code for community review, third party scrutiny is much appreciated! We’ve got a few other projects under development and will be open sourcing those too once … Continue reading →

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SingularDTV Crowdsale Completed Within Fifteen Minutes

Posted on October 3, 2016 by bok

SingularDTV Crowdsale Completed Within Fifteen Minutes and SingularDTV Raises $7.5M to Incentivize Creative Output. Website – https://singulardtv.com/. Reddit – https://www.reddit.com/r/SingularDTV.

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