Cross-Chain Storage
Connector

Walrus storage for Ethereum/L2 and Solana apps, orchestrated by Surflux.

Cross-chain durable storage is still a dead end.

Walrus is a breakthrough in decentralized data availability, but it is deeply siloed within the Sui ecosystem.

Default Behavior

Developers default to S3 and IPFS, not because they want to, but because Walrus has no EVM or Solana entry point. The path of least resistance always wins.

Integration Friction

Ethereum or Solana devs who want Walrus must run full Sui infrastructure, learn Move, and bridge tokens, a non-starter for most teams.

Broken Guarantees

Centralized fallbacks break tamper-resistance. NFT metadata on S3 is mutable. AI training data on IPFS may vanish. Apps inherit platform risk.

The Cost of Inaction

Millions of EVM & Solana devs never discover Walrus, not because they chose not to, but because nobody built the door.
WAL token demand stays low: storage stays underutilised while the rest of web3 builds on inferior infrastructure.
Walrus becomes Sui-only infrastructure instead of the decentralised storage layer for all of web3.

The Missing Bridge

Surflux is the missing bridge between Walrus and the broader Web3 ecosystem.

One relay layer that connects every major blockchain to Walrus without developers leaving their native environment.

What We're Actually Building

Full-stack infrastructure ready to scale Walrus beyond Sui.

1 Relayer Service

Surflux Backend

  • EVM event watcher
  • Walrus upload pipeline
  • Sui settlement handler
  • Retry + idempotency
  • Audit log (requestId ↔ suiTx)
2 On-Chain Adapters

Smart Contracts

  • WalrusLink.sol (EVM)
  • Solana Anchor program
  • requestStore() API
  • fulfillStore() callback
  • walrusRefOf() resolver
3 SDK + Docs

Developer Layer

  • surflux.walrus.upload()
  • Gateway URL resolver
  • ERC721 + Walrus template
  • Quickstart guides
  • Sample apps (EVM + Solana)

The Relayer Model

ETHEREUM / L2 WalrusLink.sol requestStore / fulfillStore SOLANA WalrusLink Program PDA state / log events SURFLUX RELAYER ⬡ Event Watcher ⬡ Upload Pipeline ⬡ Sui Signer / Key ⬡ Indexer / Logs WALRUS + SUI Walrus Storage Nodes Sui Settlement Layer WAL object ID + metadata DATA ACCESS gateway.surflux.dev/walrus/ walrus://<objectId> resolver StoreRequested event PDA log events upload blob walrusObjectId walrusRef

Developer Experience

It feels just like using familiar Web2 bucket storage, but settles on Walrus.

import { surflux } from '@surflux/sdk';
import { WalrusLink } from './contracts';

// 1. Upload massive media file via Surflux relayer
const { contentHash } = await surflux.walrus.upload(largeMediaFile);

// 2. Request EVM on-chain anchor from origin contract
await walrusLink.requestStore(contentHash, metadata);

// 3. Resolve globally via Surflux Gateway
const gatewayUrl = `https://gateway.surflux.dev/walrus/${walrusObjectId}`;

Where Walrus gets deployed

NFT Media & Metadata

Store NFT assets and metadata with Walrus guarantees. No more broken tokenURIs from dead IPFS pins or mutable S3 buckets.

AI Datasets & Outputs

Training data, model weights, inference outputs, stored with cryptographic provenance. Audit trails for on-chain AI workflows.

App Content

dApp content, game assets, dynamic media, decentralised, content-addressed, available globally via Walrus gateway CDN.

Public Receipts

Legal docs, DAO proposals, audit reports, immutably stored with Sui transaction digest as a settlement proof anchor.

Value to the Walrus Ecosystem

We are Walrus's go-to-market engine for non-Sui ecosystems.

Developer Reach

Every team we onboard = new permanent Walrus user

Token Utility

Every upload drives real, sustainable WAL demand

Permanent Channel

Distribution that compounds, not a one-off integration

Ecosystem Credibility

Cross-chain usage validates Walrus as universal infra

Trust Model: Honest & Auditable

Yes, this introduces trust in Surflux as operator. We make that explicit and reduce risk systematically.

Integrity

Contract stores contentDigest. Anyone can retrieve data from Walrus and verify it matches independently, without trusting Surflux.

Non-repudiation

Surflux signs every fulfilment with its relayer key. The contract verifies the signature on-chain. Surflux cannot silently change data.

Replay Protection

requestId + chainId + nonce baked into every signed message.

Auditability

Every request stores suiTxDigest, a public link to Sui settlement.

Why Now? Why Surflux?

The window to establish Walrus as the storage layer for all of Web3 is closing. We are the team to execute it.

The Window
  • Competing storage protocols (Arweave, Filecoin) are already multi-chain. Walrus risks being left behind.
  • EVM and Solana developer activity is at an all-time high. The window to capture mindshare is now.
  • Securing cross-chain compatibility today ensures Walrus becomes the default before competitors lock down those ecosystems.
Our Track Record
  • 25+ shipped products across Web2 and Web3
  • Infrastructure managing $100M+ in assets and 5M+ transactions
  • Sui-native: existing indexers, relayer infra, and community presence
  • Building developer infrastructure APIs is our core competency

The Ask

$17,000
+ Operational Walrus Credits

For $17K, the Walrus ecosystem receives a permanent distribution channel to Ethereum + Solana, generating sustainable WAL demand and validating Walrus as universal storage infrastructure.

Success Metrics
10+ EVM teams
5+ Solana programs
1TB+ Walrus storage
Phase 1 $7,000
Upload SDK + EVM Link Flow
3-4 weeks. Working Relayer + EVM adapters.
Phase 2 $6,000
Solana Integration & Scaling
6-9 weeks. PDA-based Solana flow + idempotency.
Phase 3 $4,000
Docs, Templates & Growth
Quickstart guide, 2 sample apps, 3 tutorials, launch blog.

Let's build the storage layer
for every chain.

WEBSITE
surflux.dev
DOCS
surflux.dev/docs
CONTACT
contact@surflux.dev

Walrus is ready. Ethereum is ready. Solana is ready.
Surflux is the bridge. Let's ship.

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