How to Wrap BTC NFTs Using Emblem Vaults

by | Apr 1, 2021 | Knowledge | 0 comments


  • choose a network — ethereum mainnet or polygon
  • fund metamask w/ native tokens (ETH/Matic for TX fees) 
  • fund metamask w/ COVAL tokens (for vault purchase)


Step 1: Go to, connect metamask and click the create tab (top left).

Step 2: To be able to list on Opensea, select public and then click next.

Step 3: Enter pertinent asset info in vault name and vault description (reference other emblem vault listings on opensea for format), click next.

Step 4: Upload the asset image / gif (inder 5MB) and then click ‘create vault.’

Step 5: Click on btc/xcp to obtain the deposit address and deposit xcp asset(s) from your freewallet. 

Step 6: Click on ‘mint me’ and confirm the metamask transaction.

Step 7: Refresh metadata in Opensea, if needed once the vault mint txn confirms in metamask, the vaulted asset will appear in your Opensea account.  Once your BTC/XCP transaction confirms, the assets will populate in the ‘current contents’ balance (refresh the page if needed).

Finally, you can now list your bitcoin counterparty asset for sale on opensea – congratulations!

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