FAQ
Below you’ll find answers to the most common questions. If you don’t find what you’re looking for, feel free to contact our AI support.
Categories
- Tokentags & RWAs
- 3D Models & Media
- Swap Card
- General & Support
Tokentags & RWAs
What do I need to use Tokentags?
You can read a Tokentag with any NFC‑enabled smartphone. A simple tap opens the linked asset on tokentagged.com. Minting (writing to the Tokentag) works on Android with Chrome (Web NFC) and on the iPhone with Safari or Chrome (security-key path – hold the tag to the phone once more when asked). There is no app to install. You also need your own Ethereum wallet with a little ETH for the network fee. See Minting on iPhone and Android.
Does my phone support NFC?
Most modern Android phones and iPhones support NFC. On iPhone, NFC is available from iPhone 7 and newer. On Android, you can check in Settings → Connections (or Network) → NFC.
My phone won’t scan the Tokentag. What can I do?
- Make sure NFC is enabled in your phone settings
- Hold the phone steady over the tag for 2–3 seconds
- Try different positions (iPhone: top edge; Android: often center)
- Remove metal or magnetic cases
- Ensure the tag is firmly attached and not covered by metal surfaces
How difficult is it to copy or counterfeit Tokentags?
Tokentags use high‑security chips similar to those in bank cards. The private key is generated on the Tokentag, stored only there and never leaves it – cloning a Tokentag would mean extracting this key from the chip, which is exactly what the chip is built to prevent. A copied certificate, a photo or a written‑down number cannot pass the check. The Tokentag is copy‑protected; it remains important that it is firmly attached to the object.
How is the connection between the Tokentag and the digital asset created?
Each Tokentag generates a private key and a corresponding public key that serves as the token ID. During minting, that token ID is linked to a contract address and written onto the Tokentag. This makes the connection unique and permanently verifiable.
Can I issue an art or authenticity certificate with a Tokentag?
Yes. Choose the template "Artwork – digital certificate" in the editor: the public part (artist/issuer, title, date, medium, dimensions, edition, signature, condition, provenance, photos) is stored permanently on Arweave and countersigned by the chip when minting; a private part stays in the Tokentagged database and can be deleted. See Art & Authenticity Certificate.
Can the NFT be stored on the Tokentag itself?
Transferring the certificate onto the Tokentag (so that object and certificate are handed over together) is planned but not yet available in the web app. Today the certificate is held in the owner’s wallet and transferred like any NFT.
What happens if Tokentagged no longer exists?
The certificate lives as a token on Ethereum, images and data on Arweave – both remain independent of Tokentagged. Checking a Tokentag needs no data from our servers. For emergencies there is the Backup App on Arweave.
How do I get Tokentags?
You can buy Tokentags in different formats in the official shop.
What are typical use cases for RWAs with Tokentags?
Common use cases include art & collectibles, luxury goods, certificates/documents, and alternative assets. Tokentags make authenticity, provenance, and ownership transparent and verifiable.
3D Models & Media
How long does 3D model processing take?
Processing time depends on the number of images and typically ranges from 10 minutes to 2 hours. You’ll receive an email once processing is complete.
How much does a 3D model cost?
Creating a 3D model costs €4. Payment is made before processing. If you’re not happy with the result, you can request a 50% refund before finalizing.
Mesh or Gaussian splat – which should I choose?
The classic textured mesh suits matte, textured, solid objects (and is 3D‑printable). The photorealistic Gaussian splat is better for shiny, transparent, very thin or textureless objects and for rooms. The AI pre‑check recommends a method; "Both" calculates both variants for the same price. See Own models & Gaussian splats.
Can I upload my own 3D model?
Yes, free of charge: a mesh as glb, gltf, obj, fbx, stl, ply or a zip with textures, or a Gaussian splat as ply, spz, splat or glb – up to 200 MB. Choose "New 3D model" → "Upload your own 3D model" in your project.
How many photos do I need for a good 3D model?
You need at least 20 photos and can upload up to 200. More photos generally yield better results. We recommend at least 50 photos—100+ for large or highly detailed objects.
What can I do if the result isn’t good?
Image quality is crucial. Check sharpness and overlap. If the result isn’t good, you can restart the calculation with better images for €2 or request a 50% refund.
What kinds of objects work well for 3D models?
Still objects with textured surfaces work best. Transparent, reflective, or uniform objects are challenging. For many difficult objects, the 360° view is a good alternative.
How do I redeem a 3D model voucher?
You can redeem a voucher right before processing—where payment happens. Enter your code or select an available voucher.
How do I create a 3D model?
Photograph your object from all sides (20–200 photos) and upload the images to Tokentagged. Create or select a project and click “Create 3D Model.” The guide is here:
Can I download my 3D models?
As the creator you can download your own models in the edited and unedited version (click the download icon in the media slider). Other users can download a model only if the creator allowed downloads; downloads of 3D models by other users are currently limited. Gaussian splats are exported as GLB (KHR_gaussian_splatting) and open e.g. in SuperSplat or the Babylon.js Sandbox.
How do I embed the media slider on my website?
Open the asset, click the three‑dot menu in the top right, and choose “Embed.” Copy the code into your website. You can also adjust size and other options in the embed menu.
Swap Card
What is a Swap Card?
The Swap Card is a physical hardware wallet that lets you securely store and hand over crypto and NFTs. It includes a certified secure element (EAL 6+) that protects the keys. Its handover security is patented (patent DE 10 2025 133 131).
How does the Swap Card work?
You load ETH or tokens onto the card. Tapping it with an NFC smartphone opens the web app, where you can see balances and sign transactions. The key never leaves the card.
Is the Swap Card secure?
Yes. The private key is generated on the card and stays there. Physical possession equals access—store the card safely, like cash.
Can anyone use the Swap Card?
Yes. It’s designed for both newcomers and experienced users. No app is required—an NFC‑enabled smartphone is enough.
How do I top up my Swap Card?
Tap the card with an NFC smartphone, open the web app, and transfer assets from your wallet onto the card.
Can I buy or sell crypto with the Swap Card?
Buying and selling cryptocurrency directly in the wallet view is coming soon. You can top up the card from any wallet or exchange by sending to its address.
What is the Backup App?
A standalone emergency app stored permanently on Arweave (https://tokentagged.ar.io/). It verifies Swap Cards and Tokentags, shows balances and sends funds – without Tokentagged servers, login or tracking. See Backup App.
What happens if I lose my Swap Card?
The value is tied to the card like cash. If it’s lost, whoever finds it can access the funds. Keep it safe.
Where can I buy a Swap Card?
You can get it in the official shop:
General & Support
What are Real‑World Assets (RWA)?
RWAs are physical assets like artworks, collectibles, or luxury goods that are represented digitally on a blockchain.
What’s the difference between RWA and NFT?
RWAs are the physical objects. NFTs are the digital ownership and authenticity certificates that represent those objects on‑chain.
Can artists benefit from this?
Yes. You can link physical works digitally and earn royalties on resales.
I didn’t find my answer. What now?
Use our AI support or contact us at https://tokentagged.com/contact.