> SafeTools - EIP-712 message signing for Gnosis Safe
Prove Safe ownership with EIP-1271 verification
> Blobkit - TypeScript SDK for Ethereum blob transactions
[GitHub] 10-100x cheaper than calldata
> $BETH - immutable ERC-20 representing provably burned ETH
[GitHub] [announcement]
> Founded Ethereum Community Foundation - July 2025
We're taking ETH to $10,000. Not a meme.
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█ ███║ ██╔══██╗██║ ██╔╝ ██╔════╝██╔═══██╗██║ ██╔════╝ █
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█ ███║ ██╔══██║██╔═██╗ ██║ ██║ ██║██║ ██╔══╝ █
█ ███████╗██║ ██║██║ ██╗ ╚██████╗╚██████╔╝███████╗███████╗ █
█ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝ ╚═════╝ ╚═════╝ ╚══════╝╚══════╝ █
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█ ETHEREUM CORE DEV │ PROTOCOL ENGINEER │ USMC VETERAN █
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[CONNECTED]
2400 BAUD
00:00:00
$ cat /home/zak/bio.txt
SYSTEM: Loading user profile...
I'm Zak Cole.
I develop infrastructure for Ethereum and build venture-scale companies.
## JUST SHIPPED ##
## CURRENTLY BUILDING ##
> Ethereum Community Foundation - Founder. ETH to $10K
> Number Group - CEO & Managing Partner. Venture studio
> 0xbow - Co-founder. Privacy preserving DeFi infrastructure
> Privacy Pools - Co-founder. Compliant privacy
> Number Group - CEO & Managing Partner. Venture studio
> 0xbow - Co-founder. Privacy preserving DeFi infrastructure
> Privacy Pools - Co-founder. Compliant privacy
## SUCCESSFUL EXITS ##
> Slingshot - Co-founded & CTO. DEX aggregator. ACQUIRED ✓
> Code4rena - Co-founded. $100M+ in bugs found. ACQUIRED ✓
> Whiteblock - Founded. Proved EOS wasn't a blockchain. ACQUIRED ✓
> Code4rena - Co-founded. $100M+ in bugs found. ACQUIRED ✓
> Whiteblock - Founded. Proved EOS wasn't a blockchain. ACQUIRED ✓
## ALSO BUILT ##
> Corn - Co-founded. BTCFi
> Canto - Former core contributor
> EIP-6968 - Authored. Contract Secured Revenue
> EEA Testing Working Group - Founded and led it
> Canto - Former core contributor
> EIP-6968 - Authored. Contract Secured Revenue
> EEA Testing Working Group - Founded and led it
## BACKGROUND ##
> U.S. Marine Corps - Built networks in Iraq (2007-2008)
> Google - Learned how to scale things that matter
> Ethereum Research - Published stuff people actually read
> Google - Learned how to scale things that matter
> Ethereum Research - Published stuff people actually read
## INVESTMENTS ##
> Angel investor in too many projects to list
> Previously advised Cryptex, DeFi Pulse, Syscoin, and more
> Now I just build through Number Group
> Previously advised Cryptex, DeFi Pulse, Syscoin, and more
> Now I just build through Number Group
If you don't know me, scroll down and click some links.
If you do know me, you probably owe me a beer.
$ cat /etc/connections.conf
| ╔═══════════════════════════════════════╗ | |
|---|---|
| NETWORK CONNECTIONS AVAILABLE | |
| ╚═══════════════════════════════════════╝ | |
| Twitter: | @0xzak |
| Email: | zcole@linux.com |
| ENS: | zak.eth |
| GitHub: | @zscole |
| Medium: | @zscole |
$ ls -la /var/log/media/
$ cat /usr/share/press-kit/
## PRESS / SPEAKING ##
Bio (Short):
Zak Cole is an Ethereum protocol engineer and serial entrepreneur. He is founder of the Ethereum Community Foundation and CEO of Number Group, a Web3 venture studio. His previous companies include Slingshot Finance, Code4rena, and Whiteblock, all successfully acquired. A Marine Corps veteran and former Google engineer, he authored EIP-6968 and created $BETH, an immutable token representing provably burned ETH.
Bio (Long):
Zak Cole is a protocol engineer and entrepreneur focused on building critical Ethereum infrastructure. As founder of the Ethereum Community Foundation and CEO of Number Group, he leads development of next-generation blockchain technologies. His track record includes founding Slingshot Finance (DEX aggregator), co-founding Code4rena (which has secured over $100M in bug bounties), and founding Whiteblock, whose research famously proved EOS wasn't a blockchain. All three ventures were successfully acquired.
Currently, Cole is developing Blobkit, a TypeScript SDK that allows users to leverage Ethereum blob space for arbitrary data storage, and $BETH, an immutable ERC-20 token representing provably burned ETH. He also co-founded 0xbow, focusing on privacy-preserving DeFi infrastructure, and Privacy Pools, which enables compliant privacy solutions.
A U.S. Marine Corps veteran who served in Iraq (2007-2008) and former Google engineer, Cole brings both technical depth and operational experience to Web3. He authored EIP-6968 (Contract Secured Revenue), a standard for sustainable protocol funding, and has contributed to major projects including Corn and Canto.
Speaking Topics:
> Ethereum protocol development & EIPs
> Smart contract security & competitive auditing
> Building venture-scale Web3 companies
> DeFi infrastructure & DEX aggregation
> Contract Secured Revenue (EIP-6968)
> Successful exits in Web3
Contact for speaking engagements >
Bio (Short):
Zak Cole is an Ethereum protocol engineer and serial entrepreneur. He is founder of the Ethereum Community Foundation and CEO of Number Group, a Web3 venture studio. His previous companies include Slingshot Finance, Code4rena, and Whiteblock, all successfully acquired. A Marine Corps veteran and former Google engineer, he authored EIP-6968 and created $BETH, an immutable token representing provably burned ETH.
Bio (Long):
Zak Cole is a protocol engineer and entrepreneur focused on building critical Ethereum infrastructure. As founder of the Ethereum Community Foundation and CEO of Number Group, he leads development of next-generation blockchain technologies. His track record includes founding Slingshot Finance (DEX aggregator), co-founding Code4rena (which has secured over $100M in bug bounties), and founding Whiteblock, whose research famously proved EOS wasn't a blockchain. All three ventures were successfully acquired.
Currently, Cole is developing Blobkit, a TypeScript SDK that allows users to leverage Ethereum blob space for arbitrary data storage, and $BETH, an immutable ERC-20 token representing provably burned ETH. He also co-founded 0xbow, focusing on privacy-preserving DeFi infrastructure, and Privacy Pools, which enables compliant privacy solutions.
A U.S. Marine Corps veteran who served in Iraq (2007-2008) and former Google engineer, Cole brings both technical depth and operational experience to Web3. He authored EIP-6968 (Contract Secured Revenue), a standard for sustainable protocol funding, and has contributed to major projects including Corn and Canto.
Speaking Topics:
> Ethereum protocol development & EIPs
> Smart contract security & competitive auditing
> Building venture-scale Web3 companies
> DeFi infrastructure & DEX aggregation
> Contract Secured Revenue (EIP-6968)
> Successful exits in Web3
Contact for speaking engagements >
$