FAQ

FAQ

🇬🇧 English · 🇷🇺 Русский

How much does it cost?

Registering a profile: ~$0.01. Minting a passport: ~$0.01–0.03. Verifying: always free. These are Polygon network fees — the ODP protocol itself charges nothing, ever.

Do I need to understand crypto?

Only the basics: install a wallet, keep its recovery phrase safe, top it up with a couple dollars of POL. Use a dedicated wallet for ODP, separate from any savings.

What if I lose my wallet?

Your profile ID and all minted passports stay valid forever — nothing on the chain is lost. But you can't mint new passports under that profile or update existing ones. There is no recovery; that's the price of no-one-in-the-middle. Back up your recovery phrase on paper.

What if I lose the .odpass file?

The on-chain record (fingerprints, timestamp, issuer) survives, but the full description, photos, and files it fingerprinted are gone unless you have a copy. Treat .odpass like the artwork's certificate: multiple copies, safe places.

Can a passport be faked?

The record can't be forged — but anyone can register something and print a QR code. That's why verification has a human step: check that the issuer's profile ID is published on their official website. A passport from an unverifiable issuer proves only that someone paid a cent to register a record.

Can I edit a passport after minting?

Core content — never, including the on-chain card (title, author, short description): a typo there means revoking and issuing a fresh passport. What changes over time — owner, status, coarse location, condition, damage, restoration — is recorded as append-only events since v0.6: new entries are added, nothing is ever rewritten, and the full history stays visible. The hosting link can be updated, and institutions can add proof records over time.

Is my data private?

Everything you put on-chain is public forever — including update history. Keep precise locations, personal data, and prices out of on-chain fields (rules). The .odpass bundle can stay fully private: mint with an empty link and share the file only with people you choose.

Why blockchain at all?

Because the alternative is a company database. Companies close, get acquired, change terms. A public chain record outlives them — verification will work in 50 years, from any country, with no permission from anyone. And nobody (including the project author) can quietly edit history.

Which blockchain, and can it change?

Polygon PoS (cheap, established). The protocol is versioned; each 0.x line is a separate registry. A stable v1 with defined migration rules is the target (~January 2027).

Can I build my own app / site on ODP?

Yes — MIT license, open spec, the canonical passport.json shape, reference web UI and contracts in the repo. Read the spec and join Discussions.