Standard multi-signature transaction BitcoinCore

I created a transaction with a script for a Multi-Signature in the form of

M <A pubkey> [B pubkey] [C pubkey...] N OP_CHECKMULTISIG

It is documented (https://bitcoin.org/en/developer-guide#multisig) that this type of script would belong to the standard transaction types.

When i put that transaction into Bitcoin-CLI via decoderawtransaction, it says:

"vout": [
    {
      "value": 0.00250000,
      "n": 0,
      "scriptPubKey": {
        "asm": "2 <PublicAdress 1> <PublicAdress 2> <PublicAdress 3> 3 OP_CHECKMULTISIG",
        "hex": "XXX",
        "type": "nonstandard"
      }
    },

I then sent the transaction via sendrawtransaction and it is sent, accepted and mined successfully to the Blockchain but it seems to be invisible for my wallet.

Also when i send such a transaction to my BitcoinCore wallet, Bitcoin Core doesn´t notify me about it.

Is there simply no support in Bitcoin Core for that type of MultiSig transactions or am i doing anything wrong?

multi-signature

SeBo

Posted 2018-01-05T12:39:34.977

Reputation: 13

Answers

Bitcoin Core will be default only treat M-of-N multisignature outputs as "yours" (contributing to your balance) if you own private keys to all N public keys. This is to prevent showing something as a balance which could be spent from under you.

If you instead of using a raw multisig output use P2SH the same rule applies, but in that case you're able to use importaddress to mark the outputs as yours regardless of whether you have access to the keys.

Once the outputs are treated as yours, you can use signrawtransaction to fully or partially sign for them.

Pieter Wuille

Posted 2018-01-05T12:39:34.977

Reputation: 54 032

Ok, shouldn´t it work then with this form?

1 <PublicAdress 1> <PublicAdress 2> 2 OP_CHECKMULTISIG – SeBo – 2018-01-05T12:53:29.507

It should work if both pubkeys are yours (= you have the private keys for them). – Pieter Wuille – 2018-01-05T13:05:38.007

That brought me to a follow up question: sharing-ownership-of-coins-via-multi-signature-transactions

– SeBo – 2018-01-05T13:35:08.683

You first say you created a script as

M <A pubkey> [B pubkey] [C pubkey...] N OP_CHECKMULTISIG

But then you continue with decode... output

"asm": "2 <PublicAdress 1> <PublicAdress 2> <PublicAdress 3> 3 OP_CHECKMULTISIG"

Are you really using the public keys of the participants or their hex encoded addresses \ pubkey hashes? It should come up as a multisig type if you're using the actual pubkeys. Those are 33 or 65 bytes, and start with 02 or 03, or 04 respectively.

arubi

Posted 2018-01-05T12:39:34.977

Reputation: 1 460