Computation
Network

Storage

Blockchain

Blockchain cover everything !

Computation
Network

Storage

Blockchain

Application wants more ex: 1GB
But size matters for blockchain speed

1KB NFT would have a storage fee 0.0076 SUI.

1GB storage fee more than 7600 USD

Computation
Network

Storage

A layer for a problem

Computation
Network

Storage

Blob

unstructured data object
max 13.3 GB

Computation
Network

Storage

Smart Contract

Ownership
Blob Object ID

Life time
Metadata ...

Blob hashes

Computation
Network

Storage

Complete the infrastructure of Web3

NOTE! Walrus use RaptorQ, XOR based

What are Reed-Solomon Codes? How computers recover lost data

Primary Sliver

Secondary Sliver

RaptorQ Erasure Encoded Blob
Shards: Primary Sliver + Secondary Sliver

1000 Shards now

Nodes have 1 or more shards

Time & Space

public fun split_by_epoch( ... ): Storage
public fun split_by_size(...): Storage
public fun fuse_periods(...)

public fun fuse_amount(...)

Flexible to change Time & Space

Delete is possible!

public fun certify_blob(...)
public fun delete_blob(...): Storage
public fun extend_blob_with_resource(..)
public fun extend_blob(...)

Modified Time

public fun new(blob, ctx)
public fun new_funded(blob, funds, ctx)
public fun fund(self, added_funds)
public fun extend(...)

Modified Time

public fun add_metadata(&mut self, metadata)
public fun add_or_replace_metadata(...)
public fun take_metadata(...)

public fun insert_or_update_metadata_pair(...)
public fun remove_metadata_pair(...)

public fun remove_metadata_pair_if_exists(...)

Only Modified for Blob not SharedBlob

VecMap<String, String>

Aggregator

Storage nodes

Rest API

walrus store <FILES> --epochs <EPOCHS>
walrus read <some blob ID>
walrus delete --blob-id <BLOB_ID>

Command Line

walrus publisher

Daemons

PUT /v1/blobs?epochs=1
PUT /v1/blobs?deletable=true

walrus aggregator

GET /v1/blobs/<some blob ID>

walrus daemon = publisher + aggregator

https://github.com/MystenLabs/seal/blob/main/examples/frontend/vite.config.ts

Limitation for files less than 10mb

• https://publisher.walrus-testnet.walrus.space
• https://wal-publisher-testnet.staketab.org
• https://walrus-testnet-publisher.redundex.com
• https://walrus-testnet-publisher.nodes.guru
• https://publisher.walrus.banansen.dev
• https://walrus-testnet-publisher.everstake.one

site-builder publish <root> --epochs <epoch>

Site Builder

https://github.com/MystenLabs/walrus-sites/tree/main/site-builder

Execution completed
Resource operations performed:
  - created resource /Oi-Regular.ttf with blob ID ...
Created new site: test site
New site object ID: 0x407a...b73a
Browse the resulting site at: https://1lup...4piy.walrus.site

testnet is sunsetting,

but you can run your local one for testing

base36 of blob ID

Seal is ready

Access control with Walrus

Content Publisher

• AES Key for content (client side generated)
• Encrypt the content and upload to walrus
• Define t-out-of-n threshold encryption on AES key
• AES key is encrypted by seal's public key
• Encrypted AES key is stored on walrus
• Deploy your access control contract
  • ex: allowlist.move, subscription.move
• Define `entry fun seal_approve*(id: vector<u8>, ...)`

panic to reject

Content Reader

Valid pdb of seal_approve,

no need Sui

/v1/fetch_key

Create session no need Sui

Approve PTB

entry fun seal_approve*(id: vector<u8>, ...)

Key Server

https://github.com/MystenLabs/seal/move/seal/sources/key_server.move#L19-L25

Computation
Network

Storage

George is Chief Scientist of Mystenlabs

TEE

• AWS Nitro Enclaves
• AWS CA is on chain
• Intel SGX will be the next target

Site Builder

Running `target/debug/site-builder -c /tmp/sites-config.yaml publish --epochs 1 /tmp/demo` 2025-03-30T01:42:23.232384Z INFO site_builder: initializing site builder 2025-03-30T01:42:23.232979Z INFO site_builder: loading sites configuration config_path="/tmp/sites-config.yaml" 2025-03-30T01:42:23.240775Z INFO site_builder: loading the configuration context="testnet" 2025-03-30T01:42:23.240795Z INFO site_builder: configuration loaded config=Config { portal: "wal.app", package: 0xf99aee9f21493e1590e7e5a9aea6f343a1f381031a04a732724871fc294be799, general: GeneralArgs { rpc_url: None, wallet: None, walrus_binary: Some("walrus"), walrus_config: None, gas_budget: Some(500000000) } } Parsing the directory /tmp/demo and locally computing blob IDs ... [Ok] 2025-03-30T01:42:26.195254Z INFO site_builder::util: Using wallet configuration from /home/yanganto/.sui/sui_config/client.yaml Storing resource on Walrus: /index.html ... [Ok] Applying the Walrus Site object updates on Sui ... [Ok] Execution completed Resource operations performed: - created resource /index.html with blob ID uDcYVlmmh5lQI3mCmECMVmGfaaxdGeZ-MQbfvnEw5vc The site routes were left unchanged Created new site: test site New site object ID: 0x4dad4d4e7bffa43f8be1734e5dad478b6032b02111b00ec05349848de1fc5a00 To browse the site, you have the following options: 1. Run a local portal, and browse the site through it: e.g. http://1xp2ozag3eud8172xrfqr7258hg86jzgiq55ywb7536f9owdts.localhost:3000 (more info: https://docs.wal.app/walrus-sites/portal.html#running-the-portal-locally) 2. Use a third-party portal (e.g. wal.app), which will require a SuiNS name. First, buy a SuiNS name at suins.io (e.g. example-domain), then point it to the site object ID. Finally, browse it with: https://example-domain.wal.app

Personal Message