Continued to experiment with the following designs.....







       MONERO/BITCOIN COIN





      MONERO/BITCOIN/LITECOIN/DOGECOIN



         Yep...I have 8 Private key water proof papers behind that holo...had to dig deep into that coin!
  Also threw in there a metamask seed for a wallet with an NFT just for kicks!



      

        BIP38 COIN



          This uses Mike Caldwells tech with BIP38 encryption...so you have the private and public key on the outside...behine the hologram is the QR code for the private key and also a 32 alphanumeric password to decrypt the encrypted private key. According to https://www.security.org/how-secure-is-my-password/ it will take billions of years to crack it. I also placed the same BIP38 paperwallet on an online digital stamp back in 2017 loaded with 0.02BTC and it has yet to be cracked! http://www.crypto-stamps.com/private3.html




        5 YEAR ANNIVERSARY COIN FIRST CRYPTO STAMP MAILED

        


        This commemorative coin has two holos...in the back is the private key for loaded BTC and also the seed for a metamask wallet for the NFT for this coin.

        The front has a cypher stamp hologram wallet seed for an NFT for the first crypto stamp mailed and also the first digital crypto stamp.
                     https://opensea.io/assets/matic/0x2953399124f0cbb46d2cbacd8a89cf0599974963/47547307638365115358100910084148609067724816525689145601576702520541581410305




       MULTI HOLO/MULTI SHARE SHAMIRS SECRET 2/3 ONE COIN



    
      I adjusted the front size and made larger font...hologram now filles the front nicely.




        3 SEPERATE 2/3 MULTI SHARE SHAMIRS SECRET COINS





           This time I made 3 shamirs secret coins with each one having its own individual share behind the hologram. So 3 coins and take 2 shares to unlock the private key in order to sweep the bitcoin.


VIDEO OF DUAL HOLODRAM COIN IN COMPARISON TO A QUARTER