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. Revoke by key destruction: crypto-shred.
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: crypto-shred.
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.