Questions tagged [multi-signature]

Multi-signature addresses require m-of-n signatures to authorize spending funds sent to them.

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1answer
54 views

How likely is it that all the addresses involved in a SINGLE multisig transaction input/output belong to the same wallet/owner?

I read from a paper that: "Since many transactions have multiple sending addresses, we can make the reasonable assumption that all these addresses have the same owner." (Quantitative Analysis of the ...
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How can I work out why a transaction isn't being included in any blocks? [duplicate]

I've crafted a testnet p2sh address using python-bitcoinlib. The script contents is 2-of-2 multisig: 2, key1, key2, 2, OP_CHECKMULTISIG Redeem script: ...
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1answer
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Are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?

Full question: Except for the case of multisignature, are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?
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What BIP32 derivation path does Electrum use for Multisig?

Same question as What BIP32 derivation path does Electrum use? but for multisig. thanks.
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2answers
219 views

What does this output item in the result of the call with blocktrail api mean?

This is the result of a call with blocktrail api. It is about a transaction with the hash 6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc {"raw":"...
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2answers
931 views

Understanding GreenAddress nLocktime/recovery transactions

What I understand is that Greenaddress locks a recovery transaction to be spend 90 days in the future. Whats the advantage in doing this? Why not creating a recovery transaction without nLocktime?
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1answer
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Will SegWit allow for m of n multisig with very large n and m?

By reading this answer, I understand that in m-of-n multisig addresses, m and n are limited by the maximum size allowed by the P2SH redeemScript (i.e. 520 bytes). However, in this section of BIP141, ...
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3answers
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2of2 multisig - redeem script required

Normally somebody who signs a multisig transaction also needs the redeem script or all the public keys used for the creation of the redeem script, alongside their own private key. No I was thinking, ...
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1answer
837 views

How can I spend multisig pubkey scripts? (p2ms, not p2sh)

I'm learning about Bitcoin transaction. I tested Pay to Multisig (Multisig pubkey scripts, p2ms) by using bitcore-lib. It worked. The bellow tx is mine. That is 2-of-3 multi-sig and I have all of the ...
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1answer
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How users collectively sign a transaction in a multisig scenario?

Say there're 3 people (A,B,C) involving into a 2 of 3 multisig scenario. If A & B agree to sign a transaction, what steps they should take? My guess is: A creates a transaction with the multisig ...
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2answers
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Multisig where one of the keys specifically is required?

Is it possible to make a multisig wallet that requires one of the keys specifically and any of the other ones in order to sign a transaction? For example, let's say I have a 2-of-3 multisig that has ...
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1answer
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Transfer Blockchain.info to Electrum

I am moving to Electrum from Blockchain, but I can't find any guides or tutorials on the internet that explain the process of tranferring a Blockchain wallet to Electrum. I have a multi-signature ...
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471 views

Multi-signature public key validation

In a pay 2 script hash transaction, does the redeem script get checked for valid public keys before a transaction can be signed? I have noticed that if I have a redeem script with one invalid pubkey ...
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1answer
500 views

How to get sending address of MultiSig transaction?

Example hash of transaction: 70c15eb4cc3890960dbe1ae0cf13eedaeaef04d8e4820398fb4e991b23528f03 BlockExplorer shows only 1st address of two. One address is sending address and second is signing address? ...
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1answer
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Partially sign a transaction with coinb.in

I'm trying to generate a 2-of-2 multisig address: pubkey1 and privkey1 on coinb.in pubkey2 and privkey2 a bitcoin core client I use createmultisig 2 '''["<pubkey1>", "<pubkey2>']''' on ...
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1answer
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Would it be possible for miners to discriminate Lightning Network transactions?

What do transactions creating LN payment channels and resolving them look like? Are Lightning Network transactions distinguishable from other multisignature transactions? Would it be possible for ...
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1answer
50 views

Can i compose a multisig address where one of the signatories is a multisig address?

Can i compose a multisig address where one of the signatories is a multisig address? In order to create a multisig address we need the pubkey of the signatories. bitcoin­cli addmultisigaddress 2 '["...
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1answer
931 views

MultiSig Learning On TestNet

I'm trying to figure out multisigs and have just created a 2 of 3 multisig as follows: createmultisig 2 '["public_key_1","public_key_2","public_key_3"]' This returns 2 values Value 1: Address ...
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1answer
300 views

What would be a safe way to store large amounts of Bitcoin long term to ensure safety from loss?

What would be a safe way to store large amounts of Bitcoin long term to ensure safety from loss? Is it safe to use Bitaddress.org to generate private keys and use them to generate multi-sig address, ...
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2answers
358 views

I am afraid of private key collision… What is the solution?

I know that there are a massive number of keys, but lets say that someone generate a private key that belongs to me. I know that is nearly impossible. But I want to make that more and more impossible. ...
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2answers
399 views

Can a multi-sig address also be a vanity address?

If so, do the three separate parties have to agree on the character sequence?
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1answer
52 views

Can I rely on multisignature addresses being future proof?

I am afraid to store my bitcoin in a multisig address. In the future, if the Bitcoin protocol is updated, could there be any problems with multisig addresses? Are they safe to store bitcoin in for ...
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1answer
661 views

Why did Bitfinex choose to have access to all of its customers' private keys?

These wallets were “multi-signature,” which meant they came with more than one private key to access them. Bitfinex held two keys, while the multi-sig security provider, a company called BitGo, held a ...
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0answers
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How does schnorr signature construct multisig functionality?

How does the multiparty schnorr signature work and enable multisig functionality in Bitcoin? What are its limitations? Can we construct any m of n signature? Is there anyway to hide the signers among ...
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1answer
188 views

Is it possible to create private multi-signature transactions?

Since ZCash is based on the bitcoin core it is also enabled to create multi-signature transactions by default. ZCash now adds the possibility to create also private transactions. But how to create ...
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1answer
312 views

Multisig Addresses for Trading

Currently, trading on centralized exchanges requires one to keep their funds on the exchange, with the private key controlled by the exchange's server. Wouldn't it be possible to give people multisig ...
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2answers
707 views

Is it possible to combine multi-sig and locktime?

Is it possible to create a 1 of 2 multi-sig address in which only one of the keys is time-locked and the other can sign any time?
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1answer
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Confused about this particular Multisig transaction with a (maybe) invalid scripts, but spent output

I am confused about this particular transaction: { "txid": "c49b3c445c89d832289de0fd3b0281efdcce418333dacd028061e8de9f0a6f10", "hash": "...
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2answers
2k views

P2SH address decoding

What is the process of decoding the P2SH address? We have this information so far. Let's run through an example tx bea1e7ae7ecdc502215717f30d62a12085bb2866d8db730dfb626b60c337534c The hex script (...
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1answer
290 views

How is the P2SH address obtained in decodescript

Im trying to understand how to obtain the p2SH address when decoding an output script. r.push_back(Pair("p2sh", CBitcoinAddress(CScriptID(script)).ToString())); source As far as I understand ...
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2answers
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'01' at the end of signatures

I am confused about the end marker at the end of signatures (in my case, individual sigs for a Tx that spends a P2SH) in pybitcointools: pybitcointools: ...
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1answer
366 views

wallet notification not working for multisig address

I am new in bitcoin. I started research about bitcoin(Couple of days ago) for my project.I setup bitcoin node on my linux server and it is fully synchronized. here is my bitcoin.conf prune=600 ...
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1answer
318 views

Bitcoin multi-sign and the amount of storage it required

I read the paper "Threshold-optimal DSA/ECDSA signatures and an application to Bitcoin wallet security". The authors said that in the optimal threshold signature that they propose, players require ...
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1answer
131 views

partial signature (of P2SH) in Bitcore. howto?

Using pybitcointools, it is easy get partial signatures of a p2sh using the multisign function. Then, these can be communicated around to the several controllers of the p2sh address. Using bitcore, I ...
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1answer
403 views

I'm trying to create a new kind of escrow with bitcoin, not sure if it's possible

First off, I understand that the standard way to do escrow with bitcoin is a P2SH with a 2 of 3 multisig redeem script. I'd like to try and do escrow in the following way: names of 3 parties involved:...
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1answer
306 views

with what number do multisig addresses (non-P2SH) start?

I have never seen a n-m address implemented as multisig (not P2SH). What number does it start with (i.e., regular addresses start with 1, p2sh start with 3 ...) ? In other words, where do they fit ...
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1answer
128 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 ...
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3answers
476 views

Could cryptocurrency “insurance” slow Bitcoin adoption?

Does the concept of cryptocurrency "insurance" undermine the purpose of "being your own bank"? Recently I have seen more Bitcoin related companies offer some sort of insurance for Bitcoins stored in ...
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3answers
321 views

Is there a multi Sig Explorer or Stats provider?

Is there a resource where I can get the past and current number of multi sig transactions, all types?
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1answer
429 views

How are Lightning network, duplex channels, and micropayment channels related?

I'm new to Bitcoin and just became familiar with Micropayment channels. But how exactly do they relate to: Lightning network Duplex Micropayment Channels ? I am reading about these but can't find a ...
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4answers
252 views

In a multi-sig transaction, if one party refuses to sign, what happens to coins?

In a multi-sig transaction, if one party refuses to sign, what happens to coins? Are the coins forever lost, or is the transaction voided as if it never was attempted?
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1answer
381 views

Sharing the Master Keys in BIP32

What is the Best way to share the Master Public Key and Master Chain code generated using BIP32 in Bicoins with a user that I don't trust ? I just want the second user to monitor my wallet and not ...
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1answer
85 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 ...
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1answer
106 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 ...
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1answer
437 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 ...
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2answers
271 views

How multi-signature wallets comunicate with each other?

I wonder how multi-signature wallets communicate with each other? My favorite wallet is copay. How do they communicate with each other before payment is done? How is privacy handled between each ...
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3answers
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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 ...
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1answer
1k 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 ...
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2answers
1k views

Setting up a multi-signature Bitcoin address with Mycelium

I currently have a shared account with my dad with just a cloned copy of the private key and I would like to setup a multi-signature account with him. I'm trying to do this with Mycelium, but I can't ...
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2answers
271 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 ...

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