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0answers
2 views

Can you combine 2 of 3 brain wallet addresses to form a multi-address?

Is there a way to use 2 of 3 brain wallet addresses to create a multi-signature address? How can this be done? I was hoping to do this with warp wallet if that is possible or not. I'm assuming it ...
3
votes
1answer
35 views

Can I program OP_CHECKLOCKTIMEVERIFY to trigger based on external verifiable events?

Can OP_CHECKLOCKTIMEVERIFY and multi-sig be used to trigger a transaction based on external verifiable events? Some potential uses I have in mind: Death College graduation of a child or grandchild ...
5
votes
1answer
42 views

Proof of Identity Sidechain Proposals

I have seen various Proof of Identity Proposal that all required some degree of trust (to verify the person in physical possession of a Passport is also the owner of it for example). Have their been ...
3
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1answer
45 views

First multisig using Armory

I hope that no such question already has appeared here. I've searched for a solution but cannot find one. My problem is as follows: I want to use multisig with Armory on Linux. I've created new ...
6
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3answers
541 views

What is the safest physical to store a private key only to be accessed after death?

Assume that my friend would like to encrypt his Bitcoin private key(s) and safely store them in a secret location. This located would only be identified to heirs after death in his will. Should he put ...
1
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1answer
70 views

How to use the BIP-32 keys

I am trying to built an application that uses the BIP-32. But I am not sure on how to use it. I have a passphrase with which I generate the Derived Private Key and Derived Public Key. If I share my ...
5
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2answers
38 views

Multi-sig N of M where 1 of the keys can see the balance but not spend (read-only key)?

If I had a non-HD multi-sig wallet, checking the balance of it would be trivial (I would just look at the blockchain to see the address' balance, without the need to hold a key). However, with HD ...
3
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0answers
47 views

How can I recover last word of BIP-32/39 mnemonic copay second signature multisig wallet

I've got a multisig 2of2 wallet in copay. I've one wallet correct but have lost second wallet and only have 11 of the 12 words of the seed.I'm pretty sure I miss the last one. I've got some of the ...
1
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1answer
34 views

How does the GreenAddress refill (relock) work when its nLockTime expires?

Ok, I understand that GreenAddress wallet uses a nLockTime transaction to put the funds in a 2of2 wallet, to give the user the peace of mind that, in the case their server disappears, they can still ...
2
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2answers
101 views

Multisig and Bitlicense???? Can a business even be a custodian?

Lets say a company like BitGo controls one key in a P2SH multisignature address, are they a custodian and subject to the bitlicense? For enforcement, is it even possible to tell if someone is being a ...
0
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0answers
91 views

Bitcoin multisig tutorial

I have five private keys (of type java.math.BigInteger) called a, b, c, d, e. Please provide some code template for the following. Create an address that has "3-out-of-5" spendability for the above ...
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0answers
80 views

How to create a partial signed multisig transaction with pybitcointools (Electrum)

Looking to create a partial signed transaction with pybitcointools that is recognized and accepted by Electrum GUI client. I have tried to do so for a 2 out of 2 multisig transactions, but so far ...
2
votes
1answer
110 views

What multi-sig wallets are there for Android/Jolla?

TL;DR: What wallet apps are there for android (or sailfishOS) that has "true" support for multisig? Requirements/rationale Thinking a bit, if I'm to possess serious amounts of bitcoins, I want a ...
1
vote
1answer
50 views

Is it possible to split a key for transaction signing without using multisig?

I am developing a wallet API, but I don't want custodial control of the user's funds. For reasons I won't explain here, I don't want to use multisig. But I want the advantages of a 2 of 2 multisig. ...
0
votes
1answer
32 views

Multi-Sig bitcoin in testnet

I am trying out bitcoin multi-sig in test net and when I make a payment i get the payment details address as 3CRrDxJwwkrJqmgSWikQMmZWCDo5SmL3tc but when i go into my test net wallet and try to send ...
0
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0answers
35 views

Is there a comprehensive list of altcoins protocols natively supporting Multisigs?

For cybersecurity risk reasons, I desire to stay away from trading such coins on all exhanges not supporting multisig. Albeit, it is another matter for exchanges to support Multisig for such altcoins, ...
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3answers
157 views

Do Multi-Signature Wallets Require Two Separate Bitcoin Wallets?

Put more simply, is it possible to set up a multi-signature wallet that takes both signatures from itself?
3
votes
1answer
136 views

Multi Sig Sub Keys

When talking about HD (BIP-32?) wallets, I hear talk of Multi Sig and Key Derivation / Chains. Is it possible to mix these two concepts? e.g. I want to store the majority of my coins with a 2 of 3 ...
0
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1answer
103 views

Can anyone shed any light on this error? Bitcore Multisig - bad-txns-in-belowout

Code: var utxo = new bitcore.Transaction.UnspentOutput({ "txid" : "e0c6b736e86e8dccd63bbc27f35142b413bd991a410ef50f14cd56fa1a783a1e", "vout" : 0, "address" : "...
1
vote
1answer
197 views

Multisig addresses with keys from different wallets

I am learning how to handle multisig. First I created a 2-3 multisig address with all keys from my test wallet (bitcoind on server) and sent money to the new multisig address from another wallet. The ...
3
votes
0answers
143 views

Working example of raw transaction utilising Boolean (OP_IF, OP_ENDIF) scripting REQUIRED

I recently posted this Testnet TX (TxID 2d0daa01da8294a54178f8111eb2a02010c425fd15957d8baee8717edcfbe105) which successfully spends an output (TxID ...
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0answers
53 views

Where is the code for verification of multi signature?

I want to apply the multisig system to my own project. It's not hard to get the code for the client (or signing?), but where is the code for the verification process?
1
vote
1answer
326 views

Difference between createmultisig and addmultisigaddress?

What is the functional difference between createmultisig and addmultisigaddress in bitcoincore (v 0.10)? To be clear, I understand how both function. ie. multisigCmd n ["address1 public key as hex", ...
3
votes
1answer
278 views

Is multisig address belong to the same wallet created by?

I created 2-of-3 multisig address using bitcoinqt by three public keys from my wallet . when I tried to validate this address after creation it shows : "isvalid" : true "ismine" : false should it ...
13
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3answers
1k views

What are the implications of Schnorr signatures?

Adam Back (adam3us) explained in March, 2014, but it is all math. There's another short post with advantages, though. This answer on crypto.SE claims that Bitcoin considered using Ed25519 which is ...
2
votes
1answer
190 views

Hybrid Bitcoin web wallet for performing multi-sig transaction on an e-commerce site

Two participants in a transaction, a buyer and a seller, need to interact financially. For security, they themselves keep their private keys and sign transactions on client using JS. I want to create ...
1
vote
1answer
84 views

createmultisig single point of failure

I'm implementing multisig addresses which is a great solution to a problem, but as far as I can see there's no way to create the multisig address without knowing all the private keys at the start. Isn'...
1
vote
1answer
126 views

Multisig created from Multisig address

Can a multisig address creation process use other multisig addresses as signers to result in a new multisig address Would this also result in a greater number of signers to be necessary to approve a ...
0
votes
1answer
50 views

BIP38 on multisig? Does it work?

I was making a multisig account with 3 of my Bitcoin addresses. The multisig account needs 2 of 3 private key to spend the Bitcoins in there. Then, I came up with an idea that nobody on the internet (...
1
vote
1answer
64 views

Two out of Four transaction with excluding some key pairs

Is it in theory possible to set up a 2 out of 4 multi-sig transaction, but only allow a subset of all possible combinations? More concrete: I want to have the keys A, B, C, D. Alice controls A Bob ...
3
votes
1answer
281 views

RPC addmultisigaddress call

I tried the following RPC call via the debug window: addmultisigaddress 2 '["0304a7aadeb1ae96482a10fa634825d86d80dbad8d43cd9177664eaf6f0ff7d890", "...
1
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0answers
134 views

Predict multi signature transaction size

I was looking for answer everywhere. Basically is there any way of calculate multi-sig transaction size when the transaction is creating, before the signing procedure? I was trying to find any pattern ...
2
votes
1answer
92 views

What is the maximum number of multisigaddresses you can create? [duplicate]

I have created a few multisig addresses, and just tried to create a 2 of 3 address, but it returned with the 'AddCScript() failed' error. What is the maximum number of m-sig addresses and where is ...
1
vote
1answer
67 views

Can unrelated people know the private key of a multisig address?

After a multisig address is created, can one of the private keys of that address be known by an unrelated person and the security of that address still remain uncompromised? My understanding being ...
4
votes
1answer
158 views

What percentage of Bitcoins stored in a multi sign address?

I am looking for a statistic of the usage of multi-sig addresses over time. More concrete: what is the percentage of Bitcoins stored in a multi-sig address over time.
1
vote
1answer
88 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 ...
0
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2answers
455 views

Is a bitcoin wallet address the same as your public key?

The service CoSign shows that to create a multisig wallet you need to provide a Senders Address and Senders Public Key. I thought that they were the same thing. What am I missing here?
8
votes
1answer
290 views

Mediated transfer of funds between three parties

Alice wants Bob to transfer 10btc to Carol, and is willing to pay Bob 11btc for the transfer. They both entrust Trent to mediate the transaction, and Alice is willing to pay Trent 1btc as commission. ...
6
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2answers
3k views

How will multisig addresses work?

How will multisig addresses work? Will they consist of multiple traditional addresses, or will they have some different structure? Will one be able to specify whether they will require 2 out of 2, 2 ...