Two people crossing a wide striped crosswalk in low sun, in black and white.

small team. big city.
better internet.

NextBlock is a vertical video Social Experience with one simple rule: you always control access to your attention.

NextBlock is a vertical video Social Experience with one simple rule: you always control access to your attention.

Creators own their content, audience, and can get paid from the first view. It's a place to buy and sell attention on fair terms, set by the people who own it.

who we are

who we are

Mandana Yousefi and Ian Reis, the founders of NextBlock, standing together against a navy background.

Mandana Yousefi

Mandana Yousefi

Founder, Co-CEO, COO

Founder, Co-CEO, COO

Ian Reis

Ian Reis

Founder, Co-CEO, CTO

Founder, Co-CEO, CTO

NextBlock is a US-based new media company reimagining social media for a free and open internet.


Our founders, software and strategy experts, made Flirting with Bitcoin as an ad-free podcast for their friends and family.


When they tried to promote it, they realized today's social media is built on exploitation.


That sparked an idea: using Nostr and Bitcoin to build a decentralized attention marketplace where people own and price their attention.

the attention marketplace

the attention marketplace

Right now, social media platforms sell your attention to advertisers. You get the ads. They get the money.


An attention marketplace flips this. You sell your own attention. Promoters pay you directly. You set the price.


It's more ethical because it's honest. You consent. You set the terms. You get paid.

the body of work

the body of work

The company that sincerely believes social media can be saved

block

Today's social media gives you a restricted space to tell your story. A tiny bio. A single link.


Your Block is more than just your profile page in NextBlock. It's your address on the internet. Free, and completely customizable. Link out to all the other places you exist online. Your business card, your link in bio, your tip jar, all in one. No platform takes a cut.

Five people painting together on a long roll of paper spread across a studio floor.

billboard

Today, your attention is harvested by platforms. Advertisers pay them billions for it. You give it for free. The platform keeps it all.




Billboard is more than just a way to get discovered. It's NextBlock's attention marketplace. Promoters set their max bid, citizens set their price, and the Billboard matches them where the two meet. Payments flow in Bitcoin, every 10 minutes.


Coming soon.

A woman wrapped in a blanket by a window with her eyes closed, snow and pines outside, a mug on the sill.

podcast

In 2022, our founders started a podcast to teach friends and family about Bitcoin.


Trying to promote it online sparked the idea for NextBlock.

Flirting with Bitcoin: an illustrated couple on a couch with podcast mics, a laptop and mugs.

book

Reimagined social media takes form in a love story. The tech is real, the love story is (mostly) made up.

Two hands holding a hardcover copy of The Attention Protocol on rumpled blue bedsheets.

code

We think our idea is too good not to share. So the ATTN Protocol is open-source. Anyone can use it to build their own attention marketplace. NextBlock is the first. We hope it's not the only one.

Friends outside on a summer day with a laptop, an open book and headphones between them.

roadmap

roadmap

NextBlock is building a digital city-state with one simple rule: citizens own their attention.
This roadmap shows the journey of vision to reality.
From foundation to NextBlock City.

The Blueprint

01

The Manifesto

The Manifesto

The city's Declaration of Independence establishes NextBlock's vision of attention sovereignty and declares independence from attention harvesting.

The Foundation

02

The ATTN Protocol

The ATTN Protocol

The city's Constitution defines how access to your attention is protected when a citizen participates in the attention marketplace.

This is the open-source protocol specification that defines how attention marketplace data is structured, exchanged, and processed across the Nostr network, enabling any developer to build competing attention marketplaces while maintaining interoperability.

03

The Observatory

The Observatory

The city's calendar that uses Bitcoin's blocks to synchronize all city operations.

This is the first implementation of Telescope, the open-source protocol specification that transforms Bitcoin's blockchain into virtual celestial cycles, enabling any developer to build truly bitcoin-native applications.

The Citizenship

04

The Block

The Block

The first surface of NextBlock City. A free, customizable address on the internet where every citizen establishes their identity, links to their work, and receives payments directly in Bitcoin.

The Economy

05

Billboard Pre-Market: Market Makers

Billboard Pre-Market: Market Makers

The initial marketplace where citizens can enter bids for attention thus creating the buyers’ side of the marketplace. Citizens can earn through referrals to secure a more robust economy.

06

Billboard Pre-Market: Fixed-Rate Billboard

Billboard Pre-Market: Fixed-Rate Billboard

The expanded marketplace where buyers can invite new citizens to promotions thus creating the seller’s side of the marketplace. Attention sellers can view and claim payments at fixed rates.

07

Billboard Market Open: Adjustable-Rate Billboard

Billboard Market Open: Adjustable-Rate Billboard

The dynamic marketplace where attention sellers set their own prices and attention buyers bid, with automatic matching by the Observatory every Bitcoin block.

08

Attention Marketplace

Attention Marketplace

A public platform tracking attention as a commodity that provides historical data, market insights, and transparency for all marketplace participants.

City Life

09

The Corner

The Corner

A social media experience where citizens can visit their blocks (Nostr profiles) while promotions.

10

The Neighborhood

The Neighborhood

A community feature where citizens can curate content and earn from curation while attention buyers get access to larger audiences.

11

Skyline

Skyline

A browser extension and passive earning tool that keeps citizens connected to NextBlock City, to be notified of opportunities to earn.

The manifesto

The manifesto

We are users of the world's greatest addiction machine: Social Media.

My fellow addicts,


Algorithms wield great power over our attention. They accelerate the influence of propaganda, wreaking havoc on our perceptions of reality. While they bluntly call 

us users, we should call them what they are:


Corporations Harvesting Attention On Social Media - The C.H.A.O.S. Cartel.

The C.H.A.O.S. Cartel

This Cartel makes $500 Billion exploiting us and perpetuating chaos around our digital and actual world.


We've been for sale under the lie of 'free'. We are the product. They've been selling us.


With a monopoly on our attention, the Cartel is able to exploit two other groups: Advertisers & Creators.


In a free market, people and businesses should have equal access to attention. But advertisers are limited by the Cartel's high fees, disenfranchising smaller businesses from competition.


Creators are the unpaid, or underpaid, labor force of social media. Their reach and ability to generate revenue from their content is solely at the discretion of the Cartel.


This marketplace controls and exploits the commodity of Attention only for the benefit of the Cartel.


But, with new technology, comes new opportunities.


Powered by Bitcoin and Nostr, NextBlock is the first and only social media company where people set the price of their attention to view advertisements through an opt-in, decentralized Attention Marketplace.


On NextBlock, the C.H.A.O.S. Cartel can't harvest your attention against your will.

You are not a user to be sold. You are a citizen with rights.



Only an opt-in, decentralized Attention Marketplace can free us from exploitation. To prevent abuse, this Marketplace must be made available as a public good, have mutually beneficial incentives for buyers and sellers, and it must fund itself.


We don't need a government to make and maintain this public good. Nor do we need a government to regulate this because it is a consensual marketplace.


NextBlock will build it, test it, and make it available to the public.


With transparent marketplace mechanics, buyers (the advertisers) and the sellers (citizens) are matched to complete a transaction at an agreed upon price. The marketplace also directs the buyer to pay for each facilitating technology contributing to the ad experience. Everyone remains incentivized to devote resources to improve each part of the Attention Marketplace.


The incentive structure for this public good 

dismantles and prevents future exploitation and monopolies. NextBlock will be the first, but not last, to allow people to control the monetization of their attention.


On NextBlock, we don't own your identity, you do. Leveraging the Nostr Protocol, each citizen controls their own digital identity, social network, and where their data is stored. NextBlock, a Nostr app, is simply a browser for your social media.


On NextBlock, we don't decide who gets paid, you do. Leveraging the Bitcoin Protocol, citizens who earn money selling their attention can pay creators directly when they enjoy their content.


And on NextBlock, we don't decide when the ads are shown, Bitcoin does. Ads will only interrupt your scrolling when a new Bitcoin block is mined, every 10 minutes or so. Get it? Next-Block!

So in short, the master plan is:

Step 1: Create an application that activates the Attention Marketplace, enabling people to pool, price, and sell their attention to advertisers.


Step 2: Use that money to build and improve the social media experience to incentivize more people to opt-in, creating a larger pool of attention to attract more advertisers.


Step 3: Then use that money to build custom hardware, enabling digital sovereignty so people can ultimately own both their social media identity and activity.


Concurrently, support projects to further Bitcoin and Nostr adoption while increasing social media literacy.


Let's discover how much our attention is worth together!


— Ian & Mandana

roadmap

NextBlock is building a digital city-state with one simple rule: citizens own their attention.

This roadmap shows the journey of vision to reality.

From foundation to NextBlock City.

The Blueprint

01

The Manifesto

The city's Declaration of Independence establishes NextBlock's vision of attention sovereignty and declares independence from attention harvesting.

The Foundation

02

The ATTN Protocol

The city's Constitution defines how access to your attention is protected when a citizen participates in the attention marketplace.

This is the open-source protocol specification that defines how attention marketplace data is structured, exchanged, and processed across the Nostr network, enabling any developer to build competing attention marketplaces while maintaining interoperability.

03

The Observatory

The city's calendar that uses Bitcoin's blocks to synchronize all city operations.

This is the first implementation of Telescope, the open-source protocol specification that transforms Bitcoin's blockchain into virtual celestial cycles, enabling any developer to build truly bitcoin-native applications.

The Citizenship

04

The Block

The first surface of NextBlock City. A free, customizable address on the internet where every citizen establishes their identity, links to their work, and receives payments directly in Bitcoin.

The Economy

05

Billboard Pre-Market:
Market Makers

The initial marketplace where citizens can enter bids for attention thus creating the buyers’ side of the marketplace. Citizens can earn through referrals to secure a more robust economy.

06

Billboard Pre-Market:
Fixed-Rate Billboard





07

Billboard Market Open:
Adjustable-Rate Billboard

The dynamic marketplace where attention sellers set their own prices and attention buyers bid, with automatic matching by the Observatory every Bitcoin block.

08

Attention Marketplace

A public platform tracking attention as a commodity that provides historical data, market insights, and transparency for all marketplace participants.

City Life

09

The Corner

A social media experience where citizens can visit their blocks (Nostr profiles) while promotions.

10

The Neighborhood

A community feature where citizens can curate content and earn from curation while attention buyers get access to larger audiences.

11

Skyline

A browser extension and passive earning tool that keeps citizens connected to NextBlock City, to be notified of opportunities to earn.

get involved

get involved

We need your help to grow the city.