Jack Callahan

Healthcare AI @PalantirTech |@369Capital | Advisor for blockchain startups | @PROOF_xyz

[Jack Callahan @JackIsGame1]

@ElizabethHolmes @grant_brewster What

[Jack Callahan @JackIsGame1]

Great work being done at GoodLabs.

[Grant Brewster @grant_brewster]

We’re on a mission to make blood plentiful in all the lands. And we’re hiring.

Introducing Goodlabs: the only way to get free comprehensive bloodwork with a blood donation.

Goodlabs was started to solve two major pain points:
1. People want access to preventive health, but many cannot afford it (particularly younger people and the underinsured)
2. Young Americans have stopped donating blood (the average donor age increased from 44 to 51 over the last decade)

Our story began in an NYC doctor's office, where a random blood test led to a surprising diagnosis: I have genetic hemochromatosis, a condition I've unknowingly had my whole life.

This means my body can't properly process iron, which had been silently accumulating in my organs. The solution? I now donate blood once a week (do not try this at home) to remove excess iron from my system. At the same time, I had to run around the city checking in with specialists about my iron levels, getting poked and prodded multiple times every week.

I couldn’t understand why, if there was already a needle in my arm during my donation, they couldn’t just run the blood tests. Here I was, desperately needing regular blood work to monitor my condition, while blood centers were desperately needing more donors. Two problems with the same transaction: putting needles in arms. So I quit my job, convinced my smartest friend (Adam Eldefrawy) to do the same, and now we’re trying to make Goodlabs a reality across the country.

Since then, we’ve partnered with non-profit blood center, Vitalant, and have been quietly operating in San Francisco for the past month. We’re already seeing the viral effects we were hoping for: more than half of our donors come via referrals from friends/family/coworkers. As we expected, people LOVE when they’re able to do good AND take care of themselves in the process. Our donors are almost exclusively in the age demographic that has been notoriously hard to crack: first time donors in the 20-40 year range. Since starting, we've had an outpouring of support from our thousands of early users, donors, and partners (5 separate donors have even invited us into their homes for dinner). We're trying to saves lives, and that wouldn't be possible without them.

I’m also excited to announce that we are the first ever corporate startup partner to the AABB. I flew to the AABB conference directly after my last day at Rippling, crashed on my cousin’s dorm room couch, and showed up not knowing a single person in the industry. Just one year later, we now have our own booth! Please come by and say hello if you’ll be there this weekend.

We’re hiring across several roles in engineering, ops, and marketing.

Please give us a shout if you want to save some lives.

[Jack Callahan @JackIsGame1]

This tweet links my @ethos_network profile during the private testnet.

Ethos is working to make crypto a safe space through onchain credibility → https://t.co/g7vqv3ZNuq

Here’s my Ethos profile:
https://t.co/PJh0jyhr2Z #ethos

[Jack Callahan @JackIsGame1]

@inBetweenersNFT CefCrkSHBB2jZRH8JbspGgBEYSYZs5L5qUsTh7ATdRg1

[Jack Callahan @JackIsGame1]

@inBetweenersNFT @phantom CefCrkSHBB2jZRH8JbspGgBEYSYZs5L5qUsTh7ATdRg1

[CHAINFLIP @Chainflip]

Our ecosystem is growing - welcome to our latest partners @ElDoradoMRKT!

This partnership is poised to equip El Dorado with advanced transaction routing capabilities for native assets, establishing it as a formidable player in the cross-chain DEX space.
https://t.co/WU4etRdiNN

[Jack Callahan @JackIsGame1]

@HarryStebbings @rabois @vkhosla @khoslaventures How timely!

[Jack Callahan @JackIsGame1]

@dollarr I remember when we were just spammers in the proof chat…

[Jack Callahan @JackIsGame1]

https://t.co/shAx3Srhhl Seeking market research for a pre-seed startup. KonCierge is digitizing and decentralizing traditional concierge services. Please fill out form and provide any input you see fit!

[Jack Callahan @JackIsGame1]

Thanks all who provided insights for this!

[369 Capital @369Capital]

Decentralizing Venture Capital: How the Global Venture Model is Redefining Fundamental Investing Strategies Post-Pandemic in Blockchain and Tech Broadly by @JackIsGame1

https://t.co/DvmJ6Z9Jj5

[369 Capital @369Capital]

Decentralizing Venture Capital: How the Global Venture Model is Redefining Fundamental Investing Strategies Post-Pandemic in Blockchain and Tech Broadly by @JackIsGame1

https://t.co/DvmJ6Z9Jj5

[Jack Callahan @JackIsGame1]

@alenka_xf @InnMindcom Great question / is there a geographical focus?

[Jack Callahan @JackIsGame1]

Best crypto wallets for businesses:

[Tholos @TholosApp]

⭐️Major Update⭐️

Including ➡️
🔵 Optimized @WalletConnect integration
🔵 Security enhancement across entire platform
🔵 Revamped Authentication Server
🔵 Improved loading speeds
🔵 Automatic filtration of spam transactions

➡️ and much more...

[369 Capital @369Capital]

Nurturing Altruism: The Landscape of NFTs in Philanthropy by @JackIsGame1

https://t.co/KzTNnnJw75

[Jack Callahan @JackIsGame1]

Just went through the minting process for @proof_xyz Mythics. Pretty fun, I will say! See my Mythic: https://t.co/uvSTKmWjOJ

[Jack Callahan @JackIsGame1]

Why isn’t “Team” the most important slide in a pre-seed deck?

[Jack Callahan @JackIsGame1]

Fine! I’ll start grinding Friend Tech. https://t.co/xfA8W2i7d1

[Jack Callahan @JackIsGame1]

@DrewBarman @artblocks_io @proof_xyz @moonbirds @kevinrose @JustinMezzell @nullinger @Zeneca @yukokosaka @philip_yoong Lots of friendly faces in that photo. JEALOUS!

[Jack Callahan @JackIsGame1]

@TGBEmily Writing an article on nfts in charity for a blockchain VC. Would love to chat! Happy to mention The Giving Block!