Cybersecurity · Blockchain · Web3
I build on-chain products where documents, votes, memories and assets don't depend on anyone's word. And I defend them.
Chapter I · In progress
These ten are the projects I'm immersed in today. Before them came many others that are now part of the chain's past. They all share one premise: the proof is written where no one can erase it.
Active · 2026
Earlier blocks: many other projects, now in the history · genesis 0xea0d76…8cad
Your document, sealed on the blockchain.
Register the SHA-256 fingerprint of any file on Polygon or Ethereum without the file ever leaving your device. You get a PDF certificate with a verifiable QR code: timestamped proof of existence and integrity.
Production-grade Web3, security first.
Blockchain development studio with 13 services: NFT contracts, custom tokens, DAOs and real-world asset tokenization. Live demo, multichain deployment and an audit before mainnet.
One person, one vote. No tricks.
Secure, transparent online voting. Passwordless access with MetaMask or email, a single vote per poll and results that update instantly.
Messages that open in the future.
End-to-end encrypted messages or files for someone to open on a set date. Only the cryptographic fingerprint goes on Polygon: a tamper-proof timestamp and complete privacy.
Love for a club, forever.
White-label SaaS joining physical columbaria in the stadium with a digital legacy: memorials, matches attended, QR/NFC-authenticated memorabilia and private messages. All certified on-chain.
What you live at the Camp Nou, recorded forever.
A place at the Spotify Camp Nou where members and fans record their stadium experiences on the blockchain: matches, visits and memories beside the pitch, timestamped and tamper-proof.
Sustainable diamonds, tokenized investment.
Spain's first tokenized debt issuance under the new Securities Market Law: a €5M security token backed by diamonds, supervised by the CNMV and traceable security by security on-chain.
The Bitcoin network, alive before your eyes.
A 3D neural network of Bitcoin nodes where transactions leap from node to node like lightning. Rotate it, change its density and fire your own discharges with a click.
Your crypto wallet, in your inbox.
A crypto wallet with nothing but your email address: no apps, no extensions and no seed phrases. Sign in with your email and start receiving, holding and sending crypto.
Tokens, NFTs and airdrops without writing code.
Create ERC-20 tokens, free NFTs, airdrops and bulk transfers, and certify files on Ethereum and Polygon. Contracts verified on Etherscan, free testing on Sepolia and no cookies.
Chapter II · The shield
Half of my work is looking at the chain from the other side: following the money, finding the bug before the attacker does and designing systems that don't keep what they shouldn't.
Tracing funds across wallets, exchanges and mixers. Address attribution and flow maps ready for a report.
Reconstructing incidents, scams and thefts with verifiable on-chain evidence. Our own scam database.
Manual and automated review before mainnet: reentrancy, access control, oracles, economic logic.
End-to-end encryption and architectures where sensitive data never touches a server. Only the fingerprint goes on-chain.
Illustrative simulation · fictitious data
Chapter III · Your block
Type some text or drop a file. Your browser computes its SHA-256 fingerprint and mines a real proof-of-work block. Nothing leaves your device.
Chapter IV · The lab
Forks I study, audit and adapt: from Bitcoin's core to AI-driven pentesting. A selection here; the rest lives on GitHub.
Genesis of what's next
Web3 projects, audits or an on-chain investigation. I answer personally.
Don't expect a contact form like everyone else's. I'm different, and you're looking for the difference. I'm sure you'll find your way to me.
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