With multi-signature transactions you can add up to 3 different bitcoin addresses as recipients. In order to be able to spend the funds approval is required from a chosen number of those recipients.

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Multi-signature transactions: Address based? What is the limit?

As I understand them, multisig transactions are actually transactions from multisig addresses (addresses requiring n sigs). Is this correct? (in other words, "multi-sig transactions" == ...
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8 views

Pluggable Signers for Married Wallet

I would like to start a Wallet Protection Service, but simply add myself as a signatory to wallets using the Married Wallets standard. https://groups.google.com/forum/#!topic/bitcoinj/Uxl-z40OLuQ I ...
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2answers
30 views

Escrow outputs show incorrect destination addresses in Blockchain.info

I'm interested in the following multisig transaction 3a0c283c8574205c2cc95cea0e603bfff9087af2ab0360ebd2e98740a3193a18 If I query bitcoind for information about it using the following command ...
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1answer
22 views

How can my NXT client/server send to multiple addresses paying one 1 transaction fee?

I know bitcoind lets you have multiple outputs (sending to multiple address) via the command line. Does NXT support this feature? I want to create a faucet application where I can send to multiple ...
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2answers
73 views

Multisig doesn't work unless all keys were generated from the current wallet?

I tried to create a multisig in both the Bitcoin network and the Bitcoin testnet. It seems to work only when all public keys are from the current wallet. That means when I call listunspent after I ...
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35 views

multisig escrow

in multisig 2-3 escrow, what is best approch from below ? 1- sign rawtransaction from customer and send it to escrow to sign 2-3 to release fund. but how ensure that rawtransaction is the same i ...
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1answer
106 views

What cryptographic operations are performed on the 3 public keys to produce a multisig (2 of 3) address?

I'm just getting a handle on multisig, so sorry about that. I don't really get how, (what operations are performed) on the inputs (3 public keys, right?) to generate a multisig address. Or is it some ...
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1answer
42 views

Multisig with same keys

is it possible to make a multisig tx with the same keys ? For example, i got: Key A, Key B, Key C Now A should be able to spend the coins and also B with the help of C. (B and C alone should not be ...
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1answer
39 views

Limited, but not fixed multisignature transactions, is that possible?

Is it possible to have a multisignature transaction where N signatures are required and their inputs are limited in value, but not fixed? The use case would be for a pooled acquisition, where the ...
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1answer
55 views

What % of the network will mine multi-sig transactions where n > 3?

I'm trying to determine how likely it is for multi-sigs with n > 3 are to be mined. Whether this is a sub-set of miners (say 10%) or if you need to relay them to some specific nodes.
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28 views

Finding input TX for P2SH addresses

I am beginning to work with multi-sig transactions, I understand how they work and how to sign raw transactions but how do you go about A) listing the input transactions for this address using ...
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81 views

Howto partially sign a multisig rawtransaction with BitcoinJ?

I am trying to partially sign a 2of2 transaction which I created in bitcoind. Unfortunately I am not seeing a valid raw output after signing. The expected raw output is: ...
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signing colored assets to identify worthwhile assets

With colored coin and similar solutions, anyone can create an asset. Using counterparty as an example, this gets out of control very quickly with no way to determine "good" assets easily ...
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1answer
130 views

What is the right way to create a MultiSig?

After following https://github.com/wobine/blackboard101/blob/master/wbn_multisigs_pt2_spend-funds.py for creating a MultiSig, I end up with a Multisig address. On Validate Address it shows as valid ...
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1answer
176 views

How can I use multi signature addresses with Bitcoin Core?

Using the instructions on the debug window, I created a multi signature address as below: addmultisigaddress 2 "[\"Adres1\",\"Adres2\"]" MultiSigAddres My understanding is that one needs the ...
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48 views

Multisig transactions vs secret sharing

Some background here, I am implementing a wallet that enhances security by using smart cards. The card stores a pin protected key but unfortunately cannot do ECDSA signing. There is also a server ...
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58 views

Can a 2 of 3 multisig transaction signature be revoked before it gets confirmed by the miners?

The reason I'm asking is because I want to know if 2-of-3 can be used by two parties as a way for one party to pre-commit to purchasing something before they actually do. For example, suppose Alice is ...
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1answer
128 views

multisig without tying up funds

Is it possible to enable a 2 of 3 transaction without the escrow component defined as "nobody can run off with the funds but the funds have to exist" In a scenario where A wants to pay C and requires ...
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1answer
104 views

How prevalent are multisigs?

There seemed to be great demand for multi-siganture transactions to be provided, but they don't seem to be so popular now that they are available. What percentage of transactions are multisig since ...
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88 views

Decentralised escrow / distributed private key generation

Issue Hi As many others i am curious in addressing distributed escrow problem (not just for bitcoin). As it stands now there are no decentralised escrows. All escrow services are based on trust in ...
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5answers
318 views

What are the limits of m and n in m-of-n multisig addresses?

This method describes how to create a 2-of-3 multisig. I heard that there is an inherent limit with the number of multisig parts, limiting them to 3. Does the standard method described above of ...
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1answer
142 views

Can multiple people create one multisignature address, while keeping their private keys private?

Is it possible for person A, person B, and person C to create a multiple signature address without one person needing to initially know all three addresses to create that public address in the first ...
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250 views

Are multi-sig M-of-N transactions with N > 3 supported?

BIP 11 makes M-of-N multi-sig transactions standard --- for N <= 3. What is the current support among miners for the multi-sig transactions with N > 3? (say 3-of-6). Also, BIP 11 states: The ...
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40 views

Aborted escrow transaction

I know that multisig (n of i) transactions provide a decentralised escrow mechanism. Let's say we have a 2 of 3 address. What happens if funds are sent to the multi-sig address and say the seller is ...
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79 views

How do I create a multisig transaction based on hashes of secrets?

I'm looking for a way to create multisig transactions where each signing entity must reveal a secret in order to sign the transaction. Most importantly, once a transaction has been signed, there ...
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22 views

How is Transaction malleability affected by SIGHASH flags?

SIGHASH flags allow for the flexible alteration of a transaction. Given that there are legitimate usages of SIGHASH, and changing a Tx (and presumably the TxID as well), what is the correct way of ...
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35 views

Can I use RPC decoderawtransaction to get the JSON of BIP010 data?

I'm looking at the example BIP010 data output and am trying to implement this signing in C#. My goal is to find a way to use RPC commands to construct and validate TX data that would otherwise be in ...
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2answers
92 views

Is it possible to do a digital charge on delivery (COD)?

I'm exploring having a bitcoin (or any blockchain) backed a distributed secure messaging system. This is a peer to peer network that would pay for transport. In essence, it's the wild west, your key ...
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1answer
136 views

Resources for multisignature transactions?

I am interested in using multisignature transactions to secure my company's coins and I'm wondering what tools are available right now for use with multisignature transactions? I'm especially ...
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1answer
181 views

Help understand multi-signature transactions

I'm not a technical guy by any means, and I'm having alot of difficulty understanding Multi-signature Transactions. Would an expert have time to try to "dumb down" the basics for me using some sort ...
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2answers
322 views

How can I avoid transaction malleability consequences?

Please note that this question is NOT a duplicate of other questions regarding transaction-malleability. My question is regarding a following scenario, that could happen on an exchange that uses ...
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1answer
118 views

signrawtransaction - Which private key from BitAddress.org?

I am trying to do multisignature addresses and when it comes time to spend the funds, I am getting stuck. If I create a 2 of 3 multisignature address using 3 public keys that I generate locally, then ...
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2answers
683 views

SignRawTransaction - What is scriptPubKey and redeemScript? [SOLVED]

Let me talk about how I got to the situation I'm in right now. I am using PHP and the JSON library to control bitcoind. And doing so..... I created a multisignature address requiring 2 of 3 ...
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160 views

What JSON RPC commands are suitable for a multi-tenant wallet service?

I'm looking at the JSON-RPC commands available in the QT client so I can create a multi-tenant wallet service on top of it. In other words, people would sign up for my site and have the ability to ...
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1answer
129 views

multisig tx 1 out of 2

Here is an example of multisig tx https://blockchain.info/tx/09dd94f2c85262173da87a745a459007bb1eed6eeb6bfa238a0cd91a16cf7790?show_adv=true the 3rd one output is 1 of 2 keys. So the question is ...
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1answer
173 views

Escrow multisig output tx

Can someone please explain the third (Escrow) output transaction listed here: https://blockchain.info/tx/09dd94f2c85262173da87a745a459007bb1eed6eeb6bfa238a0cd91a16cf7790?show_adv=true What the ...
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2answers
114 views

Transaction id from a multisig address

Suppose Alice sent some coins to a multisig address. Even if that address is assigned to my wallet I will not see the transaction as it doesn't really belong to me. That's fine, Bitcoin-Qt has no way ...
2
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1answer
261 views

Do multi-signature transactions make a 'bitcoin kickstarter' possible? And what state are the bitcoins in, in the meantime?

This isn't a question about kickstarter really, just a way for me to phrase my question about the crypto in terms that I can understand. My understanding, based on this article.. Stop Saying Bitcoin ...
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1answer
105 views

Is it possible to get the network to accept a partially signed multisig transaction?

I tried to send a half signed multisig transaction to the testnet but it got rejected. I think this is by design but has anyone some hard facts on this? EDIT: I think ...
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0answers
48 views

BIP0016 pay-to-scripthash transaction detection

BIP0016 acknowledges it works by "recognizing one 'special' form of scriptPubKey", so P2SH transactions are actually special cases. What are the exact rules to detect these special cases?
3
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1answer
97 views

BIP0016 pay-to-scripthash transaction validation

BIP0016 says "Validation fails if there are any operations other than "push data" operations in the scriptSig". What does it mean "push data operations"? OP_CHECKMULTISIG seems to be allowed but does ...
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1answer
125 views

Having trouble setting up the escrow function - returns transaction ID but doesn't get to blockchain?

Looking at both this example: https://earlytemple.com:8181/index.jsp and this example: https://gist.github.com/gavinandresen/3966071 I think I plowed through everything to the point where I was doing ...
3
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2answers
355 views

What happens to bitcoins in a multi-sig transaction if nobody signes?

If I transfer my coins using a multi-sig transaction, they will leave my account, but where are they until the other parties sign and they go to the recipient? If nobody signs, do they come back to ...
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1answer
143 views

Decoded transaction hex without enough signatures?

Can someone show me the output of decoderawtransaction when the transaction requires multiple signatures, but it hasn't been signed by enough people, and the transaction was created using ...
3
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1answer
234 views

Is a multisignature transaction propagated through the Network before it accumulates enough signatures?

An N-of-M multisignature Transaction requires to be signed by N addresses to be a valid transaction. I would like to know whether the Bitcoin Protocol would transmit a Transaction with less than N ...
2
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1answer
215 views

Double-signature paper wallets?

I believe it's possible to send money to an address that requires two signatures to spend. But I am trying to figure out how this can be done with paper wallets. My understanding of multi-signature ...
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0answers
173 views

How exactly does BIP11 work, and how can it be used, particularly with/without P2SH?

I'm trying to write a BIP11-compliant C# client that creates a 2 of 2 or 2 of 3 transaction. I'm also trying to understand if a 3 of 3 transaction is supported as well. This example says they are ...
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2answers
2k views

How do I use Multisig transactions to handle escrow needs?

I want to do a private escrow between me and someone else for a Bitcoin miner, and it will take weeks or months for that miner to arrive. I think multisig is an easy trust-free way to accommodate ...
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1answer
658 views

How should I safely buy/sell a preorder for Bitcoin mining equipment?

Suppose I need to buy/sell a preorder for Bitcoin mining equipment. What is the safest approach (for both the buyer and seller) to conduct this transaction? Does it matter if this transaction is ...
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4answers
853 views

What are the different prefixes of Bitcoin addresses?

Until today, I thought all addresses must start with 1. Well, behold 3M8XGFBKwkf7miBzpkU3x2DoWwAVrD1mhk, which is a multi-sig escrow address created to hold the bounty for the development of ...