Hello folks,

I was curious to know if there were wallets or any simple way to sign a message by multiple parties who have rights to a multisig address? I have seen multisig transactions, but not multisig messages.

Conversely, would there be a tool to decrypt this message to uncover who signed the multisigned message? I am imagining I would only be able to initially decrypt in as much to uncover the multi-sig address. Any way to derive the underlying public addresses for those participating within the multisig?

Any advice or resources would be much appreciated.

Cheers,

-Jeremy N.

Hey folks,

Is there a way to associate all public addresses from knowing one of the public addresses related a single "Master Key" or seed within Deterministic Wallet (BTC)?

Any insight would be much appreciated.

Cheers,

-JayBleez

Thanks HCP. Really appreciate the detailed explanations.

I am pretty comfortable with the process now. I have had one issue using my Electrum wallet (SegWit address). I can sign the message, verify on another (and my own) electrum wallet, but not on a third-party verifier.

Do these 3rd party tools have trouble reading Bech32 addresses?

My main fear would be having our client sign a message, provide us with the hash, etc, and be unable to verify due to some technical problems.

Any insight be much appreciated!

-JayBleez

I appreciate the response.

To our defense, it is a financial statement audit (vs. security or whatever other audits are out there). Once we can gain comfort they own what they say they own on the blockchain, we're pretty much good from a technical blockchain perspective.

I think our best bet is getting the hex hash with the complete:True statement on the Core wallet. Let me know if I am understanding that wrong.

Cheers,

-Jeremy N.

PS: No idea why they change addresses, I'll be sure to ask.

Hey folks, I hope all is well.

I am currently involved in an audit of a pretty decent size institution that holds a good amount of Bitcoin.

We are running into a problem where we are having difficulty proving ownership of the private keys for the addresses that hold the funds. Understandably, the client does not want to send a small satoshi amount from the address that holds millions of dollars in Bitcoin, it's simply not worth exposing the private keys.

However, the client does move their Bitcoin from address to address every certain length of time.

Our thought would be to verify ownership of the wallet address prior to receiving the funds from the other address during the transition phase. What would be the best way to do this? Is there a way to create the wallet offline, sign the message locally (never hit the internet), and confirm ownership of the address without ever comprising security?

Any thoughts or insights would be very much appreciated.

Thanks,

-JayBleez