Web upload

The fastest way to try Prova. Open the upload page, drag a file in, get a piece-cid back.

TIP

Free tier: 100 MB per file, 200 MB per IP per 24 hours. We sponsor the storage cost. For larger files, sign up for a free token (1 GiB/day) or bring a wallet.

Try it

1. Go to prova.network/upload
2. Drag a file into the drop zone (or click browse).
3. Watch the pipeline run:
   • Compute piece-cid — your browser hashes the file. The cid is content-addressed; identical files always produce identical cids.
   • Stage bytes for the prover — the worker streams your bytes to a Prova prover.
   • Propose deal on Base — a storage deal is created on-chain.
   • Prover accepts and verifies — the prover fetches, recomputes the cid, posts the first proof.
   • Active — the deal is live. The prover will continue posting a proof every 30 seconds.
4. You get back:
   • a piece-cid like bafy…q4kr
   • a deal-id like d-0x9c4f
   • a retrieval URL like https://prova.network/p/bafy…q4kr

The retrieval URL is permanent for the term of the deal (default 30 days on the free tier). You can share it, embed it, point your ENS contenthash at it.

What happens behind the scenes

flowchart LR
  Browser -- "drop file" --> Browser
  Browser -- "POST /api/upload" --> Worker
  Worker -- "PUT bytes" --> Prover
  Worker -- "proposeDeal()" --> Base
  Base -- "DealProposed event" --> Prover
  Prover -- "verify cid + accept" --> Base
  Base -- "deal-id + retrieval URL" --> Browser

Your file lives on the prover's disk, addressed by its piece-cid. The prover signs daily proofs. If a proof is missed, the prover is slashed and the file is re-pinned to a healthy prover automatically.

When to step up

• Files > 100 MB — sign up for a free token (1 GiB/day quota) or use the CLI.
• Long-term storage (> 30 days) — bring a Base wallet. Pay in USDC, choose a custom term.
• Programmatic uploads — use the API or the CLI instead of the browser.

Limits and caveats

Limit	Sponsored (no wallet)	Free token (email)	Wallet (paid)
File size	100 MB	5 GiB	unlimited (gas-bounded)
Daily quota	200 MB / IP	1 GiB / day	quota = your USDC balance
Retention	30 days	30 days	up to 5 years
Slash protection	yes	yes	yes

The web upload is rate-limited per IP. If you hit the cap, the page tells you. Sign up with an email to lift it.