John Carvalho
CEO at Synonym, creators of Pubky, Bitkit, and Blocktank.
236 Following
742 Followers
John Carvalho
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1w ago
https://bitcoinerjobs.com/job/1410370-senior-front-end-web-developer-synonym
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walker
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1mo ago
I’ve learned that the vast majority of Bitcoiners just want moonboi Bitcoin NGU hopium mixed with macro death-of-the-dollar doom porn. How do I know this? Because I see which episodes get the most traction. Bitcoiners may say they want “different guests and opinions” on Bitcoin podcasts, but their actions tell a very different story… The numbers are clear. That’s why even though Saylor has done 69,420 podcasts and everyone has listened to countless hours of him, the majority of people will still watch any new Saylor conversation over some lesser-known person. This isn’t a dig on Saylor, it’s just reality.
That said, if you are one of the minority of Bitcoiners who enjoys having your preconceived notions challenged, and have the ability to approach
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All in Bitcoin with CK
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6d ago
For @John Carvalho, it’s a game. A representation of the economic ladder.
“The more Bitcoin you have, the more you’re winning… but win too much, and the game breaks.”
You can earn it. You can mine it. You can’t fake it.
Catch this clip from my conversation with John on the ALL IN BITCOIN podcast.
Links to the full episode here: https://linktr.ee/allinbitcoin
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John Carvalho
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1w ago
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John Carvalho
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1w ago
Here's an AI-generated breakdown of the key differences under the hood between Pubky and Nostr, focusing on architecture, protocols, and design principles:
🔑 1. Identity Model
Pubky:
- Uses PKARR (Public Key Addressable Resource Records) to map pubkeys to resources (e.g., profile, index, feed, etc.) via the Mainline DHT.
- Treats a public key like a domain name, with multiple associated records (like DNS).
- Emphasizes self-custodial identity with keychain-style apps (like Pubky Ring) to manage access.
Nostr:
- Identity is simply a public key.
- No native support for structured resource discovery—clients infer structure (e.g., via nip-05, which is optional and centralized).
- No native key management or delegation system.
🧠 2. Data Architecture
Pubky:
- Data is hosted via homeservers, which can
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John Carvalho
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1w ago
https://bitcoinerjobs.com/job/1410370-senior-front-end-web-developer-synonym
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John Carvalho
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1w ago

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John Carvalho
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1w ago
https://bitcoinerjobs.com/job/1410370-senior-front-end-web-developer-synonym/
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John Carvalho
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1w ago
Signal, relevance and authenticity are of high importance, and I think that will show in our design choices.
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John Carvalho
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1w ago

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Vlad, Bitcoin Takeover Podcast
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4w ago
ACCORDING TO GROK AI:
1. S16 E10 WITH Eric Voskuil & @John Carvalho
2. S15 E71 WITH Amir Taaki
3. S15 E16 WITH Paul Sztorc
4. S13 E3 WITH Casey Rodarmor
5. S16 E12 WITH @Martti Malmi
6. S15 E66 WITH @Jameson Lopp
7. S10 E9 WITH GUACAMOLE ZUCCHINI
8. S15 E50 WITH Murch
9. S15 E57 WITH Orkun
10. S15 E53 WITH Charlie Shrem
HONORABLE MENTIONS:
S14 E1 WITH BURAK KECELI
S15 E21 WITH @fiatjaf
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John Carvalho
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2w ago
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John Carvalho
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2w ago
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John Carvalho
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2w ago
This, week the Synonym team is meeting up in Lisbon, so I decided to try and combine that with a re-union of the LBM... for a MEGA MEETUP!
New location: Delirium Cafe
April 8, 6:30PM
RSVP here:

https://www.meetup.com/lisbon-bitcoin-maximalists/events/307123239/
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John Carvalho
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2w ago

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John Carvalho
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2w ago
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John Carvalho
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3w ago
Be the signal, or be forgotten.
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John Carvalho
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3w ago
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John Carvalho
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3w ago
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Vlad, Bitcoin Takeover Podcast
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3w ago
In 2-3 months, you will too!
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John Carvalho
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4w ago
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John Carvalho
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1mo ago
https://bitcoinerjobs.com/job/1668497-rust-senior-engineer-synonym/
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All in Bitcoin with CK
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1mo ago
Hope you’re having a great Sunday!
Some of you already know me. I’m CK. I quit my fiat job, moved to El Salvador, and launched the ALL IN BITCOIN podcast on January 29th. Now I’m all-in on it. Maybe a bit delusional, but I truly believe what I’m doing here matters. It’s a podcast about Bitcoin, Freedom Tech, Sound Money, and Austrian Economics.
In this episode “BITCOIN, BUSINESS, AND BEEF,” I sit down with @John Carvalho , one of Bitcoin’s boldest thinkers. Expect a high-energy conversation packed with personal responsibility, some beef, and a bold vision for the future of Bitcoin and financial freedom.
For those who haven’t had the time to listen yet watch it now! 🔥
You can catch a less-than-1-minute teaser at the beginning to get a feel for the episode before diving in.
Hope
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John Carvalho
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1mo ago
Eric is one of the few Bitcoin devs I have deep respect for. If you truly want to understand Bitcoin, dig in here.
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Alby
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2mo ago
This is a special meeting - one featured project and QUIZ with rewards!
Prove your knowledge of Lightning, Nostr to win sats and Alby Cloud subscriptions ⚡ ⚡⚡⚡⚡
Everyone can participate in Alby CC - you can just listen, or do an intro and brag what side project you are working on
🗓️ Thursday, 3pm UTC
🔗 cal.com/getalby/communitycall
☎️ communitycall.getalby.com

Tomorrow you will have a chance to meet @John Carvalho & #Synonym team, who's attempting to rebuild the internet with #Pubky
Is Nostr not enough? 😉
Visit this project at ⬇️ ⬇️ ⬇️ ⬇️
https://pubky.app/
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John Carvalho
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2mo ago
Now, he knows more about the trends, people, and projects in P2P research than anyone.
He is a force to be reckoned with, and if you are strong enough to collaborate with such force, beautiful things can happen.
Pubky is the result of years of arguments and research to discover the very best solutions for digital freedom. Few people could have grinded through it all like we did at Synonym, with Ar.
I cherish the time we had working together, and all that we learned and designed together.
I doubt this is the end of our story, but for now, it must be.
npub1jvxva
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2mo ago
I am thankful for John for taking a chance on me and empowering me for the past few years. without such chance I don't think I would have had the time, resources, or confidence to design what is now the foundation of Pubky.
I loved working with that team, and I am confident that they will be able to materialise what was and still is our shared vision for the Web.
This post is meant to clarify, for anyone who cares that;
1. If you are following me merely for being a Synonym employee, you should consider that I no longer speak on their behalf nor have access to anything you don't.
2. If you were interested in Pkarr or Pubky, then rest assured that I will remain a resource for
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John Carvalho
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2mo ago

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Daniel
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2mo ago
npub1qny3t
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Sep 28, 2024
LETS SEE IF I CAN PULL IT OFF.
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John Carvalho
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2mo ago
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▄︻デʟɨɮʀɛȶɛֆƈɦ-ֆʏֆȶɛʍֆ══━一,
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2mo ago
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John Carvalho
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2mo ago
https://github.com/BitcoinAndLightningLayerSpecs/balls/blob/main/BIP%2021Q.md
npub1qny3t
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2mo ago
Replying to @npub107jk7
USING BITCOIN RATHER THAN SATS MAKES SENSE TO ME.
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John Carvalho
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2mo ago
In fact, any economy that embeds tipping ends up regretting it and using it as a way to exploit naive workers to pay them less.
In social media, tipping(zapping) provides a very low-value, noisy signal, and is not very useful to people or algorithms for curation.
So, calm down about zapping and try solving real problems.
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John Carvalho
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Dec 28, 2024
(The headline is clickbait, this is not a finance interview, we just did some speculating about what the big sacrifice could be this cycle!)
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John Carvalho
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Dec 20, 2024
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John Carvalho
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Dec 10, 2024
Start with this article/research by Severin on DHT censorship-resistance and numbers.
https://medium.com/pubky/mainline-dht-censorship-explained-b62763db39cb/
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John Carvalho
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Dec 10, 2024
He goes into lots of detail about the pragmatic thinking behind Pubky's design, and of course, Nostr comparisons.
I'm also very proud to see more of the team branching out and doing interviews.
The Synonym team is going to be turning heads in 2025!
https://fountain.fm/episode/HXQpcOdQU9Tnxa9BQO2v
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John Carvalho
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Nov 30, 2024
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John Carvalho
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Nov 13, 2024
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John Carvalho
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Nov 12, 2024
The 1st Pubky Community Call
- Architecture Overview & Updates
- Q1 Roadmap
- Feedback / Q&A
Contact me or @Justpav for an invite.
Let's build the next web.

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John Carvalho
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Nov 10, 2024
Decentralized, key-based web & identity solutions have always been part of Synonym's "atomic economy" ecosystem vision.
(...Side note: some aspects of the upcoming Pubky App, related to Semantic Social Graphs, social tagging, being your own algorithm, etc, come from designs I have had for more than 12(?) years...)
At first, we attempted to map this vision & requirements onto the Hypercore(Holepunch/Pear) system. Synonym had just become part of the Tether & Bitfinex family, and the hyper features and demos were amazing. That project was called Slashtags, and while we demonstrated more interesting
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John Carvalho
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Nov 10, 2024
🚀 1. Launching a relatively feature-rich version of our our flagship "Pubky App": Private beta first, then public beta Q1 2025.
🔑 2. Prototyping & launching a new authenticator app for managing keys, sessions, and DHT records.
🌱 3. Launching initiatives to cultivate an ecosystem of exceptional builders using & contributing to Pubky Core.
This is just the beginning. Our 2025 roadmap is (overly) packed with exciting plans.
Get ready to take back the web with Pubky in 2025.
https://medium.com/pubky/pubky-the-next-web-3287b35408f1
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John Carvalho
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Nov 6, 2024
With Pubky, your public key is your self-sovereign domain name.
We're building more great tools, but which tools would you like to have soon?

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John Carvalho
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Nov 5, 2024
https://medium.com/pubky/pubky-the-next-web-3287b35408f1/
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John Carvalho
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Nov 5, 2024
Nostr is not Bitcoin, it isn't an investment that will mature and make you rich (unless you get funded by Jack?).
Nostr is derivative networking protocol tech that builds on the ideas of many people before it (including my own, believe it or not). It is tech that already has been improved upon in various ways, both inside and outside the Nostr community.
Pubky is a strict improvement to Nostr and if that makes you uncomfortable, the cure is to learn more, not to attack it like it is some sort of virus or scam.
I have dedicated the past 12 years of my life to Bitcoin and freedom technology, and the Synonym team has similar stories. Do you really want to just ignore us and discredit us
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John Carvalho
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Nov 4, 2024

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John Carvalho
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Nov 1, 2024
https://medium.com/@synonym_to/pubky-ai-bot-62ebf7348c2a
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John Carvalho
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Oct 31, 2024
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John Carvalho
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Oct 31, 2024
Anyone think posts would be better without money totals on them?
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John Carvalho
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Sep 25, 2024
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John Carvalho
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Jun 22, 2024
The loading animations on Google Maps and Figma are Pride colors now.
Why was war in my ride app?
Why is sex in my design app?
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