Questions tagged [multi-signature]

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

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189 views

How do I know that my Ledger HW Wallet is using receive addresses for my wallet and not another remote wallet?

I'm a paranoid newb, I bought a hardware wallet (Ledger nanos) and have transferred funds to it. I noticed that it generates P2SH addresses, so how could I know if the script hashed is spendable by my ...
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201 views

What is the difference between P2SH redeem script on Bitcoin and on Litecoin?

I am building a service that is based on multisig wallets. My current progress is so that I've implemented the multisigs for Bitcoin network and it works fine. Now I am on Litecoin and I am facing ...
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30 views

Does Multi_Signature transactions enable trust-less payments? (Edited)

This paper: (Link to paper) introduces a blockchain based platform entitled PriWatt claiming (in Section 2.5 MultiSignatures, page 3): "PriWatt provides the means to form agreements or contracts ...
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128 views

Errors when building/sending multisig transactions

Going by the example here: https://bitcoinj.github.io/working-with-contracts I believe I've done everything correctly. Yet my program fails either to propagate correctly or because of a tx error and ...
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Determining the byte size of multisig transaction beforehand knowing the details of the transaction [duplicate]

If I know the m of n values of the multisig, the # of inputs (all of which are from the multisig and require m signatures) and outputs and the redeem script, how can I determine the size of the ...
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535 views
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81 views

Mutlisig tansactions with trezor with multiple inputs and outputs not able to broadcast

I am trying to do a multisig here is my final hex ...
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1answer
66 views

Multi-sig signature computation

I don't understand, how multi-sig signatures are generated. I've seen that inputs redeeming a multi-sig output, can be signed and signed over repeatedly, with different private keys using bitcoind's ...
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1answer
122 views

What is the algorithm behind multisignature address and redeem script?

I know you can create a multisignature address with the command: bitcoind createmultisig 2 ["pubkey1", "pubkey2", "pubkey3"] As described here: https://gist.github.com/gavinandresen/3966071 This ...
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1answer
298 views

Why is 20 the maximum public keys in a multisig transaction?

In script.h the following limit is set: MAX_PUBKEYS_PER_MULTISIG = 20 I'm wondering: Why is the limit set to 20? How would one would construct a script that allows n more than the current OP_16? E....
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1answer
148 views

MULTISIG Verified transaction don't get mined on testnet

I'm trying to check the following simple MULTISIG P2SH script on bitcoin testnet (using python-bitcoinlib): Redeem = CScript([2, J1_public_key, J2_public_key, J3_public_key, 3, OP_CHECKMULTISIG]) ...
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1answer
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Bitcoin 0.17 No public key shown (validateaddress)

I want to generate multisignature address with person, which I didn't know. Someone send me a public key. Then I do: bitcoin-cli getnewaddress "" legacy Ok, I got ...
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195 views

Multisig: How to identify who (public key/address) has signed the transaction?

I have seen that someone had asked a similar question: Possible to check who signed the transaction in a multi-sig transaction case? But I'm currently unable to parse/read the redeem script. When I ...
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1answer
260 views

Getting transaction id from raw transaction of a multisig address

I am able to get the tx id (or transaction hash) of almost any transaction but the one where the script starts with an "OP_O" (which is, I think, the null dummy introduced here https://github.com/...
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1answer
59 views

can there be a normal wallet that is equivalent to a multisig wallet?

for a normal wallet : if you own the private key you own the money can we say that the multisig wallet is just a normal wallet which the private key was derived from others wallets ?
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What would UTXO consolidation look like in the public ledger with Schnorr signatures?

I am excited about the privacy and optimisations involved with moving from ECDSA to Schnorr signatures. One of the privacy improvements, as I understand it, is that you can aggregate signatures so ...
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1answer
52 views

How do bonds in Secure Multi‐Party Lotteries work as described in Bitcoin and Cryptocurrency Technologies book

I have understood the details of it but I have a question related to claiming the bond. We have two parties Alice and Bob and suppose the bond that Alice signs is now if Alice reveals her value X ...
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2answers
242 views

How is subscript computed for OP_CHECKMULTISIG?

I'm trying to learn the Bitcoin protocol by implementing it, and I've got OP_CHECKSIG working (following instructions in https://en.bitcoin.it/wiki/OP_CHECKSIG), but I can't get an transaction input ...
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1answer
202 views

MultiSig address transaction high fee with no change

I was testing MultiSig transaction on testnet with raw transactions. I sent a transaction of 0.0012 from MultiSig 2-2 to a bitcoin address: https://live.blockcypher.com/btc-testnet/tx/...
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194 views

Bitcoin MultiSig balance not showing under listaccounts

I added 2-2 MultiSig address into wallet via bitcoin cli (Testnet) addmultisigaddress <'["key","key"]'> [account] 1 key of current wallet and other public key from different node wallet. ...
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1answer
32 views

On a shared wallet, if one of the recipients deleted their wallets off their phone, is there a way to rejoin? [closed]

We only had one 12 word backup for the main holder on their phone. The second person, on their phone didn’t get one(me). That I know of, I guess. But I deleted the wallet by accident. Now, is there a ...
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1answer
412 views

Electrum multisig 2of2 on separate machines and both offline(cold storage)

I am lost sending coins from these Electrum 2of2 multisig wallets. Call them mutisig1 and multisig2. Both wallets have the 2of2 heading, presumably that means they are correctly setup, they were ...
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1answer
299 views

How to add a signature to a transaction which I can broadcast

I am using ledger and multi sig to sign a transaction I got signature hash where both party signed the transaction. How can I attached this signature to the transaction so that I can broadcast it to ...
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1answer
35 views

Can the signers of a 2 of 3 multisig tx be identified later

For accountability reasons: If public keys of each signer is known, can the 2 out of 3 parties be identified later, or just that it was some combination of the 3 parties? If the 2 parties can not ...
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3answers
78 views

Could bitcoin/blockchain be used to create a secure non-3rd party escrow?

I'm wondering if there could be a block chain approach to selling goods and putting money in an escrow-like state until the goods are received. I'm envisioning the following scenario. 1) Buyer puts ...
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1answer
55 views

Copay Multi-Sig Wallet 2 of 3, possible issues

Copay wallet was created by one of the co signers. Is it possible for this co signer to change the 2 of 3 rule without approval from other co signers? Or add another new co signer without existing co ...
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1answer
51 views

Multisig Wallet Question

I think I understand multisig wallets: X out of Y signatures are required for a transaction to be made. My question is: is there such a thing as a multisig wallet where any ONE of the allowed ...
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1answer
295 views

How do I add a multi-sig address to account to watch balance in Bitcoin CLI

I have already created a multi-sig address with funds, and I have already made transactions (2 of 4 Signatures needed). No problem. But I want to add it to one of my accounts, or a new account, so I ...
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1answer
56 views

Creating a multisigaddress using public key from 2 different wallets or using public key from 1 wallet only? Which one is correct?

Given 2 scenarios, I used the command [addmultisigaddress] to create a multisigaddress using public keys from walletA only. When I run this command [listaddressgroupings], I'm able to see that this ...
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1answer
55 views

How can i emulate two or more recipient address?

https://webbtc.com/scripts/multisig Above site lists lots of multisig recipient addresses having 2 or more addresses like below bitcoin mainnet transaction. getrawtransaction ...
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2answers
84 views

How to build a bitcoin delegation server?

Actually, I know there are already have blockchain.info and its own api. But I want to build my own server which can provide basic API like: Generate a wallet by use password and username. User can ...
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1answer
254 views

bitcoinrpc.authproxy.JSONRPCException: -26: 16: bad-txns-in-belowout

I am getting this exception, when I am using sendrawtransaction. And all I want to do is translate this docs to Python code, and I have searched for a while but both Can anyone shed any light on this ...
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1answer
186 views

ScriptSig raw hex to sign raw tx

i have a p2sh address that is created using an uncompressed public key (from my ledger nano) and a compressed public key (bitcoincore wallet). It requires both signatures to send the funds. When i use ...
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1answer
345 views

Electrum iOS alternative that can create multisig wallet with other Electrum wallets?

I want to create a multisig Electrum wallet with two signers: my desktop and my mobile. Since Electrum is not on iOS and I really want to keep using it on my desktop, is there an alternative available ...
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1answer
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What are the advantages of Schnorr vs ECDSA?

I understand that Schnorr signatures provide an improvement on ECDSA in that they are a fixed 64 bytes instead of the longer ECDSA sig format, however, I don't see how this is an advantage over ECDSA ...
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3answers
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Ledger Nono S (ledgerjs) signP2SHTransaction is Producing Invalid Signature

I was receiving Errors while using signatures produced by signP2SHTransaction function of @ledgerhq/hw-app-btc. So I created a script using bitcore-lib to cross check it against the signature produced ...
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1answer
309 views

Paper wallet generator that can split a private key into multiple parts like a multi-sig transaction?

Are there any paper wallets that lets you split a private key into multiple parts like how a multi-sig transaction works? Sure I can just print out a paper wallet and cut it up into 4 pieces and give ...
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What's the difference between all kinds of bitcoin addresses (Single, multisig, etc…) also compared to all bitcoin forks?

Bitcoin addresses start with 1. Multisig/Script addresses start with 3. Other forks of bitcoin have single letters that are different at the beginning. Is this letter simply and only prepended to the ...
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How to implement Lightning Network in to a cryptocurrency exchange

A highly potent use-case for the lightning network are the millions of transactions that occur on a daily basis. There's still a good chance of data breach and hacks due to centralization. The ...
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1answer
121 views

bitcoin multisig address

I am struggling to find a simple explanation for how to create a multisig address. For single sig, it's clear: double hash function applied to the single pubic key in base code 59. I just can't find ...
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2answers
81 views

Statistics on Multisig Bitcoin Accounts by type of multisig

I am looking for statistics on Bitcoin addresses in use by number of multisig addresses. Specifically, I would like to know how many accounts exist that use 1 of 1, 1 of 2, 2 of 2, etc. Is there a ...
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1answer
207 views

How to implement Multisig transaction without using OP_CHECKMULTISIG

I've learned that OP_CHECKMULTISIG is a Bitcoin builtin opcode to validate Multisig transactions. Can I write Bitcoin script to validate the Multisig transactions without invoking OP_CHECKMULTISIG? If ...
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1answer
155 views

Why is my P2SH sigScript field prepended with 0x00?

I created a P2SH transaction and signed it using coinb.in. The sigScript field for this transaction is: da 00 47 3044 0220 ...
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0answers
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Recovering deposit from Coinbase Multisig Account

I was one of the ones who never received the email about Coinbase discontinuing service of their Multisig Accounts. I tried to use the tool to retrieve my funds and it is stuck on verifying amounts, ...
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1answer
191 views

Possible to check who signed the transaction in a multi-sig transaction case?

Say you have a multi-sig tx that originated from a 2-of-3 P2SH address. Is it possible to say who signed the transaction? i.e. you can get access to the redeem script once the tx is broadcasted, and ...
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1answer
179 views

Extract lightning network funding transactions with python bitcoin blockchain parser lib

My ultimate goal is to parse funding transactions (as well as channel closes in a later step) from the blockchain. In order to do so I wanted to start with a funding transaction and disect it. ...
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1answer
73 views

In a bitcoin multi-sig wallet, can i determine which of the m of n keys were used to send bitcoin?

I'm particularly interested in this for large n multi-sig wallets. For example, if m-of-n is 4-of-6, and 6 different people (e.g. 6 non-profit co-directors) hold each of the n keys. If one day all of ...
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1answer
400 views

How do I fix my check-multisig if-else output script?

I'm trying to create a custom script with if/else and a multisig operation in one branch. Currently, my script looks thus: OP_IF <pub1> OP_CHECKSIG OP_ELSE OP_2 <pub2> ...
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1answer
197 views

Electrum 2of2 multisig both cosigners share the same priv key

I set up this wallet on the same machine online. Thinking that was it, it was only until i sent funds to this wallet and tried to spend them that i could only partially sign the transaction. I opened ...
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1answer
224 views

Lightning networks revocable commitments: unilaterally closing could cause funds lost forever?

If I understands correctly, A and B will exchange their revocation key once they are ready to move to the next state. What happens if B received the revocation key and decided to close the channel ...

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