Expert Q&A
Ask Walrus community experts
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64- Expert Q&AJun 23, 2025
How long can data be stored in Walrus and is extension possible?
I've been using Walrus to store my data, but I'm not sure how long it stays stored. I want to know if the data is stored permanently or if I need to renew it periodically? Also, if I want to ensure permanence, what are my options?
- Walrus
02 - Expert Q&AJun 14, 2025
How to use Walrus for storing and verifying data on Solana?
I'm trying to build a Solana smart contract, and I need to hash some data on-chain. I want to store this hashed data using Walrus and verify it later. My main concern is whether to store this data on-chain or off-chain using Walrus. Additionally, I'm curious if storing the data off-chain allows for editing, and I am looking for the most efficient and secure method to enable this validation through the smart contract.
- Walrus
- Typescript SDK
02 - Expert Q&ACaplec15Jun 13, 2025
Can I set env vars in a Walrus published site?
I'm trying to figure out if it's possible to set environment variables in a site published on Walrus. The idea is to adjust certain settings dynamically, but I'm unsure if Walrus supports such backend variables due to its static nature. Any insights?
- Walrus
02 - Expert Q&AJun 12, 2025
What happens to blobs after they hit the end epoch?
I was wondering what exactly happens to blobs on the Walrus network when they reach their end epoch. Do they just disappear? Or can I get back some of the storage costs if I've marked them as deletable? Also, how does the whole lifecycle of these blobs work, especially in terms of storage reclamation?
- Walrus
- blob
02 - Expert Q&Amssoni30Jun 11, 2025
What happens to data after the 'end epoch' in Wal framework?
I was learning about the Wal framework's 'writeBlob' function which requires setting a 'start epoch' and 'end epoch'. I'm curious, what happens to the stored data after the 'end epoch' is reached? Does it get deleted automatically, or does something else happen to ensure data continuity?
- Walrus
- blob
01 - Expert Q&A1 Luca26Jun 10, 2025
Does deploying a site with Walrus make it live instantly?
I’m trying to wrap my head around deploying a site using Walrus. When I hit the publish button and deploy the site, does it immediately go live, or do I have to wait for one epoch before it appears online?
- Walrus
02 - Expert Q&Ahohm11Jun 09, 2025
How can I become a Walrus storage node operator?
I've been keen on becoming a storage node operator for the Walrus decentralized storage network. However, I've read somewhere that the intake for storage node operators happened a while ago. Is there a way for new operators like myself to join, or is it limited to selected developers at this stage?
- Walrus
01 - Expert Q&ADuAn26Jun 04, 2025
How can I map my SuiNS to a Walrus Site?
I've recently bought a SuiNS domain and I'm trying to map it to my Walrus Site, but it doesn't seem to work. I've followed some guides but get stuck with xxx.xx.walrus.site not functioning. Any advice on how to properly set this up?
- Walrus
- Typescript SDK
03 - Expert Q&AMichelle 15Jun 01, 2025
How to resolve certify blob transaction failure in Walrus SDK?
I was trying to upload data using the @mysten/walrus TypeScript SDK and everything went smoothly until I hit a snag with the 'certify blob' transaction. My storage reservation and blob registration went through successfully, but the certification just wouldn't take effect. I've got a hunch that it might be due to an incorrect system package ID configuration in the SDK. Any tips or help on what could be causing this issue?
- Walrus
- Typescript SDK
03 - Expert Q&ADominikus 20Jun 01, 2025
How to store private documents on Walrus?
I'm looking to store my documents on Walrus but I need to make sure they aren't publicly visible or accessible. Is there a way to achieve this without compromising the privacy of my sensitive information?
- Walrus
- Typescript SDK
- blob
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