Welcome to Kubo
Safe video content for children
Child profiles
Create and manage child profiles
Video viewing
Curated video content experience
Kubo.watch
Give your children safe access to digital video content through a by you defined trust domain for your child.
Kubo uses filters that adapts to your family's values and community connections. This is done with revolutionary technology which uses TEPP and Web of Trust filters.
What is Kubo?
Kubo is a child-safe video consumption platform built to demonstrate the Trust Extended Permissions Protocol (TEPP) protocol in a real-world application.
Our goal is to demonstrate how TEPP can be used as a parent to create and grow a trust domain with your child.
The platform serves as both a practical tool for families and a reference implementation for developers looking to build on the TEPP protocol.
There will be a separate application for children where they can enjoy the video content just like with YouTube Kids but better.
Build on human trust
Build your child's content world from the inside out - starting with your inner-circle, expand to friends of friends and extend it with communities.
The problem
YouTube Kids is broken.
Designed for addiction
By design, the app is already nudging your children to get addicted
Algorithmic feeds
Algorithms deciding what your child sees, not you
Entertainment, no education
There is no space for education, all content is optimized for entertainment.
Unknown creators
Content from creators you've never heard of or vetted
AI slop flood
YouTube is getting flooded with AI generated content.
Filter failures
Age-inappropriate content slipping through automated filters
One-size-fits-all
Generic filtering that ignores your family's unique values and preferences
No parental agency
Little control over content quality and appropriateness for your specific child
Privacy risks
Multiple rapports show that your children's privacy is not very well respected.
Terms of Service - didn't read
Exodus privacy report
Our solution
Use real relationships to curate content.
Three-level trust system
Use a three-level trust tier to create comprehensive trust domains for your children.
View-onlyInteractExtend
Explicit approval system
You explicitly approve family members and other trustworthy people who can contribute to your child's content experience.
Community of shared values
Share content recommendations with other parents you know and trust who share similar family values and content standards.
Complete transparency
You see exactly who approved what content. No hidden algorithms or mysterious recommendations—full visibility into every content decision.
As a parent
Take control of your child's digital video experience with powerful parental tools
Add video content
Curate video content for your child with flexible sharing options:
- Just for your child
- Share with trusted parent groups
- Make publicly available
Create child profiles
Set up individual profiles for each of your children with age-appropriate settings and personalized trust domains.
Manage trust domains
Define and control trust domains for each child. Add family members, friends, and trusted content creators to build a safe network.
Preview content feeds
Review and preview exactly what your child will see before they access any content. No surprises, complete transparency.
Two apps, one safe experience
Kubo provides separate, purpose-built applications for parents and children
Parent app
Full control and management capabilities for setting up and maintaining your child's safe content environment
Child app
Simple, safe, and fun interface designed for children to enjoy curated content without distractions
Three levels of trust
In Kubo, we've defined three distinct trust levels that can be applied to any trust domain, giving parents granular control over content access and interaction.
View-only
The most restrictive level where children can only view content without any interaction capabilities.
Watch curated videos
No comments or likes
No sharing capabilities
Cannot add new content
Interact
Moderate access allowing children to engage with content through safe interaction features.
All view-only features
Like and react to content
Safe, moderated comments
Cannot extend trust domain
Extend
Full access level allowing children to contribute to and expand the trust domain.
All Interact features
Suggest new content
Recommend trusted sources
Grow trust network
Trust domain per child
As a parent, you can set and grow a trust domain per child over time. What can be part of this trust domain?
Profiles from people
Family members, friends, and trusted content creators who can contribute to your child's content experience
Relays as locations
Trusted Nostr relays and content sources that provide safe, verified content for your network
Content as Nostr events
Individual pieces of content stored as Nostr events, each with its own trust level and approval status
For each item in the trust domain, you can set an individual trust level.
Kubo works with
We are using modern, open and permissionless technologies
Nostr
Decentralized social networking protocol enabling censorship-resistant communication and content sharing.
Relay-based architecture
Cryptographic identity
Event-based messaging
TEPP
Trust Extended Permissions Protocol - the core technology enabling trust-based content filtering and domain management.
Trust level management
Permission delegation
Domain-based security
Drupal
Enterprise-grade content management system providing robust backend capabilities for content organization and user management.
Content management
User authentication
API infrastructure
Kubo is supported by
Web of Trust Foundation
Supporting the development of trust-based technologies and decentralized systems for a better digital future.
Sebastix
Technical development and consulting expertise in building secure, decentralized web-applications using Drupal, PHP and Javascript.
Blog
Our publications
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Roadmap
Our development journey toward building the ultimate trust-based content platform
Phase 1: core platform powered by Drupal
finishedView a filtered feed with video content
Create child profiles with nostr keypairs
Add video content as a parent
Manage video content properties: language, category, rating (for parental guidelines)
Set video content access policies
Configure roles and permissions
View a feed with video content + filters
Phase 2: Profiles, remote connect & Nostr
in progressManage child profiles as a parent
Connect with an existing Nostr profile using a remote signer (NIP-46)
Integrate NIP-71 video events
Setup wss://relay.kubo.watch with policies
Phase 3: Web of Trust - NIP-85 Trusted Assertions
#wotathon deadline: March 2026This phase is planned to coincide with the Web of Trust hackathon organized by Nosfabrica, where we'll collaborate with the community to build robust trust filtering mechanisms.
For new (a new generated keypair without a following list) parents we can use Trusted Assertions (event kind 30382) to bootstrap / pre-configure a domain for a child in a easy and fast way. Depending on the score, we can preset one of the three trust levels (view-only, interact or extend) per a profile. In the future, when a system such the Trust Extended Permissions Protocol (TEPP) exists, WoT-scores can be used a context for parents to aid in defining the digitial environment for their child, and serve a basis for automated permission approvals.
Provide a parent with a curated list (by the Web of Trust foundation) of profiles to be added to the trust domain of a child
Fetch trusted assertion data (NIP-85) per profile from a Trusted Service Provider (TSP)
The parent can adjust the trust level per profile
Save all trust levels per profile in a trusted domain entity for the child
Implement Brainstorm and Relatr as TSPs
Implement other TSPs which will available by the time / during the #wotathon
Add select Trusted Service Provider feature for the parent for fetching the scores for the list of profiles
Apply the same flow for video content (event kinds 21, 22, 34234, 34235 from NIP-71) with known trusted assertions
Option to (de)active an autopilot feature of applying trust levels of profiles to your child's trust domain
Phase 4: Child Experience
Develop a dedicated child application
A completely separate, child-friendly interface designed for safe content consumption with age-appropriate UI/UX and enhanced safety features.
Kanban board
These are the items we are working on
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Support us with your feedback
Join the Kubo community and help us build the future of child-safe content consumption
Demo
Currently, the demo at https://demo.kubo.watch requires a legacy login with an account to test things.
Please reach out to us if you're interested in getting access to Kubo and want to be part of our early testing community.
Community beta program
Eventually we will open up a community beta program where everyone can join, test and provide feedback.