Nostr Web Client

“onchain”

Bro it’s a private database operated jointly by a few large companies that has “blockchain” in the name of the consortium.

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Why don't they just have a database that you can verify against? I'm not sure what good a blockchain is.

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Hype marketing. They could just serialize it and track sales in a publicly available database. And that's probably all their 'blockchain' is anyway.

And even this could probably be bypassed

True

Even simpler, they could just sign the CoA with their private key.

I think any of it could be bypassed. You can copy a paper CoA.

Some embedded RFID thing that's signed would probably be harder.

NFC I mean. I'm in work mode 😂

Why not just put this piece of paper in the box and do nothing else?

Ask them.