92,857 BTC (1,092,603,630 USD) transferred from unknown wallet to unknown wallet

Re:92,857 BTC (1,092,603,630 USD) transferred from unknown w... by olliej on Thursday August 06, 2020 @08:36PM (#24076846)

I assume the question is “can you do all the transaction signing offline” before actually posting it.

E.g.

1. Pull current BTC hash/tree/whatever-is-needed-in-a-transaction copy onto usb stick

2. Transfer that data to machine with account key via a usb stick or some other connection that has no external communication

3. Use that information to generate the transaction

4. Copy the transaction to the connected machine - a photo of the transaction text on screen even :)

5. Push the transaction out

6. Destroy the intermediate storage devices

Would that work?

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Re:92,857 BTC (1,092,603,630 USD) transferred from unknown w... by baobabKoodaa on Friday August 07, 2020 @11:42AM (#24083080)

No, that's not what the question was. The parent poster specifically said "you don’t know if they kept a copy of the key. But is there some mechanism whereby it could be guaranteed that you have the only copy?" In your example the account key on the usb stick is not guaranteed to be the only copy, and thus, there is risk of the sender double spending that money.

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Re:92,857 BTC (1,092,603,630 USD) transferred from unknown w... by coreblocks on Friday August 07, 2020 @11:05AM (#24082617)

That’s basically what a hardware wallet like ledger or trezor is.

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Re:92,857 BTC (1,092,603,630 USD) transferred from unknown w... by lozf on Friday August 07, 2020 @03:51PM (#24085822)

Unless the seed was used elsewhere / in another similar device.

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