Storage that can prove itself.
Server-side encryption on Walrus. Ownership receipts on Sui. Uploads and reads that feel fast.
Not storage — the provable chain of custody storage enables. Verifiable by anyone. No account, no API, no trust in us.
On-chain provenance
A ManifestNFT per object: fingerprint, owner, version lineage. Resolves on Sui — independent of us.
SSE-C
Encryption with your keys
SSE-S3, SSE-KMS, SSE-C — up to hold-your-own-key. Delete by destroying the key, with a certificate on Sui.
S3-compatible gateway
SigV4 — AWS CLI, boto3, any S3 client. Edit freely, then freeze to Walrus to extend the lineage.
Leak attribution
Per-licensee watermarking traces even a short snippet back to who leaked it. Records live on-chain.
Hash the bytes. Resolve the receipt on any Sui fullnode. No Permafrost account required.
Open this receipt on Sui →The receipt carries the fingerprint, ownership, and full version lineage. With the original bytes, anyone can recompute and prove provenance — without us.
Enterprises whose data carries rights — custody they can prove, not just storage they rent.
Built on Walrus — the premium publish-and-read layer for enterprise workloads.
What actually goes on-chain?
Only the receipt: content fingerprint, owner, timestamps, version lineage. Never the content and never the keys — the bytes live encrypted on Walrus.
Do we need wallets or tokens?
No. You integrate through the S3 API you already use; the chain does its work underneath. The receipt still lands in an address your organization controls.
Who can read our data?
No one without an authenticated, license-checked request — and every read is logged. Keys can sit with us, in your KMS, or only with you. Destroy the key and the stored bytes have no reader left — and a certificate on Sui records that you did.
Are we locked in?
No. Your data comes back out through the same S3 API, and the receipt on Sui is yours either way — it doesn’t expire when a contract does.
Is this production-ready?
Permafrost runs on Walrus × Sui testnet today; mainnet is next. Early partners are shaping the licensing and audit surface now — a good time to talk.
Talk to us.
Walrus × Sui · testnet.