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I have two private keys for a multi-sig vault. I have a tool that will sign transactions to move BTC out of this address.

Where can I find a tool that will use my two private keys to move BCC (Bitcoin Cash) out of this address? I want to move this BCC to an exchange for trading.

For the curious: this multi-sig vault was created via coinbase. And while their official position is that they don't give users access to their BCC, since I have control of two private keys I can move BTC out without their cooperation, so I should be able to do the same with BCC in that same address. Coinbase's own tool only works with BTC, so perhaps a fork of it that works with BCC would be ideal.

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After a long, painstaking process, I developed the manual steps required and thoroughly documented it here:

How to sell your Coinbase Multi-sig wallet coins on the Bitcoin Cash (BCC) network

  • Great work. I have knowledge how to build transactions for BCC network but I do not have any coins on msig-vault coinbase account to create user-friendly tool – amaclin Sep 12 '17 at 21:34
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You should

1) create a transaction which spends funds from your wallet and sign it with SIGHASH_FORKID bit https://github.com/bitcoincashorg/spec/blob/master/replay-protected-sighash.md

2) send this transaction to BCC network using BCC-client and wait this transaction to be confirmed

Unfortunately, I do not know about the existanse of automated tool for this task - you should do it yourself.

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