Verify
Check the authenticity of Swap Card and Tokentag: chip signature, manufacturer attestation, counter and open approvals.
A standalone emergency app, stored permanently on Arweave. It verifies Swap Cards and Tokentags, shows balances and sends funds – even when tokentagged.com is unreachable. Without Tokentagged servers, without login, without tracking.
The name “tokentagged” in the Arweave Name System (ArNS) points to the current version.
The same name via other Arweave gateways, in case one is unreachable.
An Arweave transaction never changes. This address always opens exactly version 1.0.8.
Tip: save the address as a bookmark or on your phone’s home screen – then you can find it even when tokentagged.com is unreachable.
Everything you need with your card in an emergency – directly in your phone’s browser.
Check the authenticity of Swap Card and Tokentag: chip signature, manufacturer attestation, counter and open approvals.
Show the card’s ETH, ERC-20 tokens and NFTs – straight from the blockchain.
Send ETH and tokens from the card to another address. The card signs, the app forwards the transaction to the network.
Detect and activate a Swap Card that has not been activated yet – without the tokentagged.com web app.
Look at the balances and tokens of any address without tapping the card.
Show the card’s address as a QR code to receive funds.
The backup app is deliberately simple so that it works independently of us.
The whole app is one HTML file that runs in the browser. You can also download it and open it locally.
The app never talks to Tokentagged servers. There is no account, no analytics script and no cookie.
Balances and transactions come directly from public Ethereum RPCs, token and approval data from Blockscout, images from Arweave and IPFS gateways. The list of sources is shown in the app’s settings.
As in the web app, the private key is generated in the chip and never leaves it. The app only lets the card sign challenges and transactions.
The app relies on third-party services (Arweave gateways, Ethereum RPCs, Blockscout). Their availability is not in our hands; the app therefore tries several sources one after another.
Only the addresses, checksums and the release wallet listed here are valid. Copies elsewhere may have been altered.
The app shows its version under “About”. Current version: 1.0.8.
On start, the app computes the checksum of its own file and shows it under “About”. It must match the value here. Download and check yourself: sha256sum (Linux/macOS) or certutil -hashfile (Windows).
Every version is uploaded from this Arweave address. The sender is part of the transaction.
Shows sender, tags (app name, version, checksum) and time of publication.
1.0.8ec30bacd4f219e60945e45a7cfdd716ed152208d5b534fa2ec32f373ca734009k89k9DwBQ6-gaKhhQ9wEZ5-ELIvvFts7zunaCYqUclYOpen in explorercYcbaWq45DREHuoUdSvUFtsaf18wVPDHvxKAbwh7tNUarweave.net/cYcbaWq45DREHuoUdSvUFtsaf18wVPDHvxKAbwh7tNUOpen in explorer_DcbzvKPTRDrX-nYc92jemVmzdJHW3TX41zvBYwfGQ4Open in explorerBeware of forged copies: a file that does not come from one of these addresses or has a different checksum is not a Tokentagged backup app – even if it looks like one.
Every published version remains permanently reachable under its transaction.
| Version | Date | Arweave transaction | SHA-256 |
|---|---|---|---|
| 1.0.8 | 10/11/2026 | k89k9DwBQ6-gaKhhQ9wEZ5-ELIvvFts7zunaCYqUclY | ec30bacd4f219e60945e45a7cfdd716ed152208d5b534fa2ec32f373ca734009 |