Alex Puig

Alex Puig is a Web3 entrepreneur and blockchain developer whose work focuses on the intersection of decentralized data, digital identity, privacy and interoperability. He is the founder and CEO of Context Protocol, a project focused on organizing and verifying real-world information so it can be used across decentralized applications and AI-driven interfaces. His broader entrepreneurial work includes co-founding Caelum Labs, a blockchain consultancy and development firm, and The Data Venture, a Web3 data venture studio. This profile covers his verified work across Spain’s blockchain ecosystem, decentralized identity and verifiable data infrastructure.

Founder Snapshot

1. About Alex Puig

Alex Puig is a software R&D engineer and technology entrepreneur based in the Barcelona area. His career spans early blockchain ecosystem-building in Spain, decentralized identity and data infrastructure, and Web3 venture creation. He has been active in the Spanish and European blockchain community through initiatives such as Fintech Barcelona, the Digital Currency Summit and Alastria, and has co-founded or led several ventures including Caelum Labs, The Data Venture and Context Protocol. His current primary focus is Context Protocol, a project that has evolved into a Layer-1 blockchain positioned as a trust and identity layer for AI agents. This profile concentrates on his crypto and Web3 career and keeps personal biography limited.

2. Early Blockchain Ecosystem Work

Puig’s early blockchain activity was rooted in Spain’s emerging crypto and fintech community. He was associated with Fintech BCN (Fintech Barcelona), a Barcelona-based fintech community, and with the Digital Currency Summit, a series of conferences examining the economic and institutional impact of digital currencies and cryptoassets. Public biographies describe him as a founder or director of these initiatives, which helped connect banks, technologists and public-sector participants around blockchain and digital-currency topics.

This profile distinguishes between organizations he founded, helped organise, or participated in. Not every initiative he was associated with was founded by him; where his role is described as director or organiser, that is the role recorded here.

3. Alastria Blockchain Ecosystem

Puig’s LinkedIn profile states that he founded the Alastria Blockchain Ecosystem, described as Spain’s first national semi-public blockchain platform. Alastria is a multi-stakeholder national consortium that brought together Spanish banks, telecoms, technology firms and public-sector bodies around shared blockchain infrastructure and standards. His contribution is recorded here as involvement in the founding and early technical leadership of the ecosystem, not as sole creation of the network, which was a collective national initiative.

This profile does not imply that Puig created the entire Alastria network single-handedly; it records his stated founding role and his broader work coordinating participation from institutions within the ecosystem.

4. Caelum Labs

Caelum Labs is a blockchain consultancy and development firm co-founded by Puig, in which he served as CTO and led the technical team. Public biographies describe the firm as focused on blockchain, Ethereum, Rust, decentralised applications and self-sovereign identity. Puig’s Caelum Labs work included identity and data infrastructure and enterprise blockchain development.

CryptoSlate lists him as CTO & Co-Founder of Caelum Labs from 2017 onward. His current primary focus is Context Protocol; this profile treats Caelum Labs as a venture he co-founded and led technically, and does not assert it is his primary active role as of August 2026 without independent confirmation of its current operational status.

5. The Data Venture

The Data Venture is a Web3 data venture studio co-founded by Puig. His LinkedIn profile lists him as Co-Founder from January 2021 to the present. CryptoSlate reports that the studio was launched with an initial €300,000 budget and expanded into multiple data-focused blockchain ventures; this profile treats the budget figure as a reported claim rather than an independently audited fact, and does not publish investment size or portfolio numbers beyond what reliable sources support.

The venture studio model involves creating or incubating multiple startups around a shared theme — in this case, Web3 and data. The Data Venture’s current operational status and portfolio are not independently confirmed in detail here.

6. Context Protocol

Context Protocol is Puig’s current primary venture. He is its founder and CEO. The project’s official website (ctx.xyz) describes it as “The Trust Layer for AI Agents” and “the identity layer for AI agents,” positioned as infrastructure to “connect, verify, and govern AI agents on sovereign EU infrastructure.” Independent reporting has described Context Protocol as a Layer-1 blockchain protocol designed as a trust layer for AI agent interactions.

In conceptual terms, Context Protocol attempts to make real-world data identifiable, structured, attributable, verifiable and machine-readable, so that decentralised applications and AI systems can understand not only where information is located but also what it represents and where it came from. Earlier descriptions of the project framed it as a decentralised semantic name and data service; the project has since evolved toward a Layer-1 blockchain for AI agent trust and identity. This profile presents project ambitions as goals rather than as fully deployed capabilities unless independently confirmed.

7. DNS3

DNS3 is a concept associated with Context Protocol. It is described as an on-chain naming approach in which identifiers can carry semantic and verification information rather than merely resolving a location. In simple terms, DNS3 proposes that a name on-chain can encode what an entity is, who it belongs to, and how its data can be verified — not just where to find it.

DNS3 is distinct from the traditional Domain Name System (DNS). This profile does not claim that DNS3 has replaced or superseded traditional DNS. Where deployment is not independently confirmed, the project’s goals are described using wording such as “proposes,” “aims to,” “is designed to” or “explores.”

8. Semantic Data and Verified Knowledge

Several concepts are relevant to Puig’s work: semantic data (information with machine-readable meaning), structured metadata, knowledge graphs (networks of entities and their relationships), provenance (where data came from), data integrity, ownership, permissions, versioning and entity relationships. Together, these ideas aim to make information not just stored but understandable and trustworthy for both humans and machines.

Context Protocol attempts to combine these ideas with blockchain-based verification — using on-chain records to anchor claims about data origin, ownership and integrity. This section describes industry concepts; it distinguishes them from technologies specifically invented by Alex Puig or Context Protocol, and does not imply that Puig invented the semantic web, knowledge graphs or blockchain-based verification as categories.

9. Data Sovereignty

Data sovereignty refers to the principle that individuals and organisations should control their own information — including ownership, portability, permissions and the ability to verify how data is used. It stands in contrast to models where data is held and controlled by centralised platforms. Cryptographic verification and self-sovereign identity are tools often associated with data sovereignty.

These themes appear across Puig’s work, particularly in Context Protocol’s framing of verifiable, user-attributable data. This profile does not imply that all data stored through blockchain is automatically private or user-controlled; blockchain provides verification and attribution, but privacy and access control depend on how systems are designed and configured, and there are tradeoffs between transparency, privacy and performance.

10. Decentralized Identity

Puig’s work has involved decentralized identity, including self-sovereign identity, portable credentials and verifiable identity. Public biographies describe his Caelum Labs work as touching self-sovereign identity, and Context Protocol’s current positioning centres on identity for AI agents.

This profile does not attribute the development of general concepts such as self-sovereign identity (SSI), decentralized identifiers (DIDs) or verifiable credentials solely to Puig. Those are industry-wide concepts and standards developed by many contributors; Puig’s contribution is through specific projects and products that apply these ideas.

11. Zero-Knowledge & Privacy

CryptoSlate associates Puig’s work with privacy-preserving verification and zero-knowledge proofs. The publicly available biographical material reviewed for this profile describes his work in terms of blockchain-based verification, identity and data provenance rather than detailing specific zero-knowledge proof implementations that he personally developed.

Where his relationship to zero-knowledge technology is mainly conceptual or commentary-level, this profile describes it that way. It does not label Puig a zero-knowledge proof inventor or cryptographer, because strong public evidence of specific cryptographic contributions was not found in the sources reviewed.

12. AI and Verifiable Data

A central theme in Puig’s recent work is the idea that AI systems need stronger guarantees around the provenance and integrity of the data they consume. Context Protocol’s current positioning as a “trust layer for AI agents” reflects this thesis: that as AI agents increasingly transact and interact with external data sources, they need verifiable, attributable, machine-readable context to operate safely.

Concepts Puig has discussed publicly include AI data provenance, verified sources, structured real-world information, machine-readable context, AI agent identity, data permissions and tamper resistance. This profile attributes viewpoints appropriately (“Puig argues…”, “Context Protocol proposes…”) and does not treat future AI architecture as established fact.

13. Real-World Data Use Cases

Context Protocol’s materials describe potential use cases in which real-world information — such as business details, locations, opening hours, menus, public registries, credentials and documents — could be maintained as verifiable, on-chain-anchored data and later surfaced through AI assistants, conversational interfaces or knowledge graphs.

This profile distinguishes between live products, pilots, demonstrations and conceptual use cases. Unless independent evidence confirms that a specific use case is deployed and operational, it is described as a proposed or demonstrated application rather than a live system.

14. Rand Network

Puig has served as a Technical Advisor at Rand Network since January 2021, according to his LinkedIn profile. IQ.wiki also records this advisory role. The advisory relationship is listed here as an ongoing role based on his self-reported LinkedIn history; this profile does not place it in the hero section, which is reserved for his primary current venture (Context Protocol).

What Is Alex Puig Working on Now?

Information checked: August 2026

• Current (primary): Founder & CEO, Context Protocol — a Layer-1 blockchain positioned as a trust and identity layer for AI agents (ctx.xyz).
• Current: Co-Founder, The Data Venture — Web3 data venture studio (since January 2021, per LinkedIn).
• Current (advisory): Technical Advisor, Rand Network (since January 2021, per LinkedIn).
• Previous / ongoing (status unclear): CTO & Co-Founder, Caelum Labs — blockchain consultancy and development firm; his primary focus is now Context Protocol.
• Previous: Founding/leadership role in Alastria and early Spanish blockchain ecosystem initiatives (Fintech BCN, Digital Currency Summit).

This is an informational status check, not a verification badge.

Why Alex Puig Matters in Crypto

Alex Puig’s relevance in crypto comes from the intersection of Web3 data, blockchain infrastructure, decentralized identity, semantic information, privacy and AI. His work represents an attempt to extend blockchain’s verification properties beyond financial assets toward real-world information and machine-readable context — and, more recently, toward the trust and identity layer that AI agents may need as they interact with external systems.

This profile does not describe him as the inventor of decentralized identity, zero-knowledge proofs, blockchain, Web3 or the semantic web. His contribution is through specific ventures and ecosystem-building work that apply these broader concepts.