Today, 3send becomes public - an open-source, wallet-to-wallet file transfer tool built entirely on top of the Ratio1 protocol and deployed on Base.

What started as a nights-and-weekends side project by Petrica Butusina and Alessandro De Franceschi has become a landmark demonstration of what the Ratio1 ecosystem unlocks: sovereign communication, on-chain accountability, and a self-reinforcing economic loop that strengthens R1 with every use.

This is more than an app launch.
It’s a proof of what Ratio1 is capable of, and a preview of the product wave now being built on top of it.

Why 3send Matters for the Ratio1 Vision

3send takes the raw ingredients of Ratio1 - encrypted control storage, content-addressed payloads, and a burn-driven economic model - and turns them into something anyone can use:
“Pick a wallet. Pick a file. Click Send.”

The mission behind Ratio1 has always been to create neutral, sovereign rails where users own their data and developers own their destiny. 3send makes that real in a space where it’s sorely needed: privacy-preserving, high-speed file transfer.

It shows that:

1. Ratio1 isn’t just infrastructure - it’s product-grade infrastructure.

3send uses Ratio1 primitives directly, without modification. That means any builder can follow the same path: take the SDK, combine CStore + R1FS, and ship a complete decentralized application without permission or gatekeepers.

2. Real-user apps can be simple, friendly, and sovereign at the same time.

No seed phrase is required to start. Wallets, passkeys, hardware enclaves, mnemonics - 3send adapts to any user’s security level while ensuring the protocol’s guarantees remain intact.

3. Each interaction reinforces the R1 economy.

Every single file transfer performs an on-chain R1 burn.
This is the first live demonstration of a user-facing product that natively implements the Ratio1 economic engine.

3send is the flywheel in motion.

What 3send Actually Does Under the Hood

Even though 3send feels simple, it stands on a deep, elegant technical foundation powered by Ratio1 components.

1. CStore – The Encrypted Control Plane

3send writes all metadata - CIDs, timestamps, encrypted notes - to CStore, which behaves like a decentralized key-value log.
Because entries are append-only and authenticated, recipients can reconstruct their inbox from any Ratio1 node with a single namespaced lookup.

Under the hood:

• Each inbox entry is stored under a hashed namespace
  
  

• The payment transaction hash becomes the storage key
  
  

• Encrypted metadata + proofs live entirely off of centralized systems

This makes inbox reconstruction deterministic, censorship-resistant, and transparent.

2. R1FS – Content-Addressed Payload Storage

Encrypted ciphertext is uploaded to R1FS, Ratio1’s file store.
Only someone with the correct X25519-derived secret can fetch and decrypt the blob.

No address = no resolution.
No key = no decryption.
No request logs = no data exhaust.

This is client-side security with decentralized persistence.

Encryption: What Secure-by-Default Actually Looks Like

3send’s encryption model is built for cryptographic rigor without compromising usability.

Session Handshake

• Sender fetches the recipient’s public key
  
  

• Generates an ephemeral X25519 key pair
  
  

• Derives a shared secret → SHA-256 → AES-GCM key

This ensures each file uses a fresh symmetric key.

Payload Sealing

• AES-GCM encryption
  
  

• Random 12-byte IVs from crypto.getRandomValues

  

• Envelope contains ephemeral key + IVs + metadata

A recipient reconstructs the shared secret with their private key - whether from vault storage, passkeys, or a deterministic seed.

Expiry & Purge

After 7 days:

• R1FS payloads are deleted
  
  

• CStore entries are pruned

This keeps the network lean while guaranteeing privacy through ephemerality.

Key Management: Three Modes, Three Audiences

3send demonstrates how Ratio1 can support diverse security profiles, from newcomers to privacy maximalists.

Light Mode (Vault)

Best for new users.
The private key is encrypted and stored in CStore, retrievable after a wallet-based challenge. Convenient, secure, no seed phrase.

Passkey Mode

Private key lives inside your device’s secure element using WebAuthn PRF.
Biometric/PIN-protected, phishing-resistant, hardware-backed.

Recovery Phrase Mode

24-word deterministic seed → hashed → X25519 scalar.
Nothing leaves the device.
Lose the phrase, lose the inbox - pure sovereignty.

Switching modes rotates keys, forcing users to download existing files before upgrading security tiers.

Fueling the R1 Economy: Burns as Native Utility

Every file sent through 3send interacts with the 3send Manager contract on Base.

Users can pay with:

• ETH

• USDC

• R1

Behind the scenes:

1. Funds auto-swap into the exact R1 required
   
   

2. R1 is burned permanently
   
   

3. A PaymentProcessed event is emitted
   
   

4. 3send verifies the burn before writing to CStore or R1FS

The result?

• Real economic activity increases R1 scarcity
  
  

• Edge nodes earn protocol rewards
  
  

• Transfers are publicly auditable

This is the Ratio1 economy operating exactly as intended:
protocol-level services → user interactions → R1 burns → protocol strengthening.

3send is proof that the model works in the wild.

Why 3send Is the Blueprint for the Next Wave of Ratio1 Products

3send didn’t require custom backends, custodial infrastructure, or proprietary servers.
It used only what Ratio1 exposes today.

That is the takeaway.

If Petrica Butusina and Alessandro De Franceschi can build a production-grade, cryptographically sound, user-friendly app in their spare time, imagine what full-time teams, startups, and DAOs can build with the same tools.

Already in development across the ecosystem:

• Privacy-preserving messaging tools
  
  

• Collaborative workspaces with encrypted sync
  
  

• Decentralized vaults and password managers
  
  

• Encrypted social protocols
  
  

• Supply chain & legal data delivery systems
  
  

• Zero-knowledge-enabled audit trails

3send is the first - but not the last - example of a Ratio1-native product that feels as polished as a Web2 app while retaining full user sovereignty.

The message to builders is clear:

If you can imagine it, you can ship it on Ratio1. And every new product strengthens the entire economy.

A Milestone for Ratio1 - and the Beginning of Something Bigger

Today’s launch of 3send is a turning point.

It proves that Ratio1 is not just a protocol; it’s a platform where meaningful, privacy-focused, revenue-generating products can be built and shipped by independent creators.

The ecosystem is young.
The primitives are powerful.
And 3send is the first public signal that we’re entering the product era of Ratio1.

More tools are coming.
More teams are building.
And with each new deployment, the R1 economy grows stronger, scarcer, and more useful.

Sovereign apps are here.

And today, 3send leads the way.