Hi,

I'd like to setup an HD (hierarchically deterministic bip32) cold paper wallet for receiving funds only, and be able to monitor the total balance, and generate new receive addresses, from my mobile phone. From what I understand, after generating an HD wallet, all that is needed to be recorded/printed are the "private key" and "master public key". Is this correct?

I was planning on generating my wallet at bip32.org. Is this a production-ready reference implementation? When I generate a wallet there, it is not clear to me which of the resulting properties are the ones I need to save. I do not see a property named "master public key", for example.

Once I have my keys generated, I will print two documents, one with both the "private key" and "master public key" on it, and a second with just the "master public key". The document with the "private key" will be heavily guarded, while the document with the "master public key" will also be guarded, but less so, since it does not allow spending of Bitcoin, it *only* reveals the total balance of all generated addresses. Is this correct?

Now that the paper wallet is generated and secured, I would like to transfer some funds to it and monitor the balance using my mobile phone. I need to install an app that understands how HD wallets work, give it my "master public key", and request it to generate a new receive address. I send some coin to that address, and the app subsequently displays the new balance using the already provided "master public key". Is this right? Any android app recommendations for this setup?

Best,
Baz