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Cybersecurity

Notebook Labs

Notebook solves the Web3 identity problem by using Zero-Knowledge to provide both anonymous proof-of-humanity and credential aggregation. Notebook initially verifies users’ identifying information to ensure that each person has just a single Notebook. Neither Notebook, nor any other company knows the link between a user’s personal information and their Notebook. Once a user’s Notebook account is created they can begin proving their humanity and aggregating their credentials across wallets. Noteb

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #2436

Notebook solves the Web3 identity problem by using Zero-Knowledge to provide both anonymous proof-of-humanity and credential aggregation. Notebook initially verifies users’ identifying information to ensure that each person has just a single Notebook. Neither Notebook, nor any other company knows the link between a user’s personal information and their Notebook. Once a user’s Notebook account is created they can begin proving their humanity and aggregating their credentials across wallets. Noteb

source
generated read
High Signal interpretation

Notebook Labs is classified as Cybersecurity from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
NotebookZero-Knowledge
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Notebook Labs

Cybersecurity · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Reclaim Protocol

match 46

Reclaim Protocol provides best in class conversion rates (45%+) on education, employment and retail loyalty verification. Global coverage, secure and privacy preserving. - Global coverage : Unlike most other vendors we are global by default. No matter where in the world the user is, we can verify. - It is 100% private : Neither you, nor us, see any private information about the user. So you carry no liabilities. No risk of your database getting hacked. - Best in class conversion : We have the hi

shared product terms: information, neither, nor, any; shared product theme: security and compliance; shared affiliation: Y Combinator

StratumAI

match 41

The mining industry drills narrow holes in the ground called drillholes to identify how much gold is in a ground at any spot. These holes are expensive so the industry uses statistical interpolation to predict what's in between these holes. Stratum replaces these traditional methods by utilizing deep learning to better predict both where to best drill and how much gold is in between these holes. This technology is not limited to gold and has been demonstrated to work on other metals, including b

shared product terms: both, identify, any, other; shared affiliation: Y Combinator

Station

match 41

Station is the central interface for your team’s knowledge. Thanks to our browser extension teams easily visualize and switch across all apps, documents, notes, messages, and more. Connect any app to Station, customize your interface and watch how Station creates links between files and highlights the information you need when you need it. It’s a one click install.

shared product terms: knowledge, information, any, link; shared affiliation: Y Combinator

Argument Computer Corporation

match 37

Argument combines zero-knowledge cryptography, formal verification and distributed consensus technologies to build systems for unbreakable, scalable, private, decentralized software.

shared extracted concept terms: zero, knowledge; shared product terms: zero, knowledge; shared affiliation: Y Combinator

Well Principled

match 35

We aren’t building AI to replace "knowledge work” that requires neither, but to bolster the working human intellect which has never failed to discover new paths to prosperity. For all their success, mainstream approaches to AI have fundamental limitations preventing them from solving critical classes of problems. We are building a new AI architecture from first principles to break from these limitations. The status quo has ossified around the supervised, brute-force pretraining paradigm. These s

shared extracted concept terms: knowledge; shared product terms: problem, knowledge, neither; shared affiliation: Y Combinator

Breadslice

match 16

Nanopayments for proof of humanity

shared product terms: proof, humanity