All Questions
Tagged with segregated-witness p2sh
29 questions
1
vote
1
answer
117
views
Is it possible to "label" Segwit spendable output ScriptPubKeys with arbitrary bytes?
If one created a Redeem Script for a transaction output following a P2SH-P2WPKH pattern but with bytes prepended, something like:
OP_PUSHBYTES_8 41206c6162656c2e OP_DROP OP_0 OP_PUSHBYTES_20 <20 ...
- 970
2
votes
1
answer
666
views
What is the purpose of P2WPKH-P2SH?
When I ask the google what is the purpose of P2WPKH nested in P2SH, it says the following:
This allows the user to send funds to a SegWit (Segregated Witness)
address using a non-SegWit transaction, ...
- 1,099
5
votes
1
answer
129
views
Why wasn't P2SH-wrapped P2WPK added to any BIP?
Pieter Wuille wrote this:
There is no such thing as P2WPK; the only valid witness v0 programs are P2WPKH (OP_0 + hash160 of pubkey) or P2WSH (OP_0 + sha256 of script).
But I don't understand the ...
- 872
1
vote
1
answer
395
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Can The Redeem Script Consist Of Only 1 Public Key In P2SH Transactions:
I have a few questions relating to Bitcoin Signatures And P2SH:
Why is P2SH used as opposed to other forms? Is it still prevalent today - has SegWit made it redundant or less useful, if not, what is ...
- 177
3
votes
1
answer
145
views
Why does SegWit implement new address formats?
I would consider myself quite up-to-par with the concept and in-depth functionalities of SegWit (segregated witness).
I just don't understand one key aspect of it; P2SH and bech32 addresses.
why on ...
6
votes
2
answers
806
views
Why are P2WSH addresses larger than P2SH addresses?
One would, perhaps naively, assume that both addresses are hashes of scripts and therefore ought to be the same size.
- 711
1
vote
1
answer
204
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Are P2PKH or P2SH transactions malleable?
BIP66 fixed one source of transaction malleability and segwit, to my understanding, fixed the rest of the sources. Yet, there are still many common types of non-segwit transactions in use, like P2PKH ...
- 773
2
votes
1
answer
212
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What is the link between address and use of the UTXO?
I state that I'm still a beginner. I need some clarification. I am using the Testnet. This is the information regarding the address I used to receive funds from a Faucet
bitcoin-cli validateaddress ...
- 125
0
votes
0
answers
287
views
Generate p2sh-segwit and address bech32
When I use bitcoin-cli getnewaddress "" "p2sh-segwit" which kind of script is inside And can I convert if in bech32?
- 1
1
vote
1
answer
1k
views
Segwit with Multisig
I was analyzing a Bitcoin transaction that works both with Segwit and non-Segwit for multisig Scripts.
Here is the transaction: https://www.blockchain.com/en/btc/tx/...
- 342
1
vote
2
answers
143
views
In practice, are redeemScripts commonly reused?
In regards to P2SH-P2WSH transactions, are Txout-script values identical between transactions? Is it reasonable to expect a business or vendor that accepts bitcoin to be using the same redeemScript ...
- 333
1
vote
1
answer
860
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Multisig scripts hashing (p2sh): difference between legacy and segwit
Some time ago I noticed that, given the same inputs, addmultisigaddress and createmultisig Bitcoin core's methods were generating different p2sh (addresses).
I asked around and a user from the ...
- 113
2
votes
2
answers
230
views
If I was developing a Bitcoin wallet, should I support both legacy and compatibility addresses?
To receive funds, I was thinking of giving a user the option of displaying two QR codes:
Legacy - p2phk e.g. 1AKDDsfTh8uY4X3ppy1m7jw1fVMBSMkzjP
Compatibility - p2sh(p2wpkh) e.g. ...
- 207
0
votes
1
answer
346
views
Access funds on legacy address related to segwit address from which I have private key
The situation
Hello. Our company running BTC pool. We've been mining BTC for a while and used segwit address 32Z3eXSPgxcHj2fnQy8d6dg66eVtZfxrBM as pool adress.
But when we finally found a first ...
- 101
8
votes
3
answers
11k
views
What is the Witness and what data does it contain?
I've learned about the Segregated Witness but couldn't find info on breaking it down.
I know usually when legacy addresses are used the public keys for example will be under Scriptig. With P2SH, I ...
- 351
4
votes
1
answer
4k
views
How to generate a native Segwit address and P2SH Segwit address from a standard WIF?
Can I have the steps to generate a native Segwit address from a standard WIF? And the steps to generate a P2SH Segwit address from the same WIF?
How do these two formats differ and why are there two?...
- 1,808
2
votes
2
answers
4k
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Bitcoin - Technical difference between P2PKH and P2SH address generation?
I was convinced that the only difference between the generation of addresses starting with '1' and '3' was simply changing the prefix added to the digest from 0x00 to 0x05 after the ripemd160 part.
...
- 25
9
votes
2
answers
3k
views
What the difference between old segwit (3) and new segwit address (bc)?
i'm not that kind of person who understands cryptography and math, can you tell me simply the main purpose of new segwit address? are transactions fee the same for new segwit (bc1)?
instead of "Old ...
- 103
1
vote
1
answer
374
views
segwit nested in p2sh
I understand that P2SH addresses are used to allow "segwit unaware" wallets to create outputs spendable by segwit wallets (please correct me if I got something wrong). For new clients I think I got it:...
- 69
0
votes
1
answer
388
views
Why is not Bech32 address selected as default in Bitcoin Core 0.16.0?
So, thankfully Bitcoin Core 0.16.0 came to us, general people.
But however, native segwit address Bech32 wasn't selected as default.
Is not it better to use a Bech32 address right away rather than ...
- 369
3
votes
1
answer
2k
views
How to quickly find the private key from Segwit P2SH address?
I have a very large list of Segwit addresses for bitcoin, starting with '3' and do not know the corresponding legacy '1' address for them.
How can I quickly find the corresponding legacy address to ...
- 31
0
votes
1
answer
710
views
P2SH-P2WPKH private key or revert to P2WPKH
Is there a way to get the private key out of an P2SH-P2WPKH address, using Bitcoin Core 0.15.1?
If not, is there a way to get the origin P2WPKH address to get the private key out of this address?
- 3
1
vote
1
answer
3k
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How to get legacy address and private key from Segwit P2SH address?
I have a Segwit P2SH address (starting with 3...) with the corresponding private key and need to obtain the legacy address (starting with 1...) and the private key. Is this possible?
- 13
2
votes
1
answer
736
views
How to properly backup a address with private key after 'addwitnessaddress' command
I've received my balance to my addresss that starts with 3 which is after 'addwitnessaddress' command.
I'd like to know that how do I properly backup my balance to keep safety.
Bitcoin Core has a ...
- 369
1
vote
2
answers
1k
views
Create Pay to Witness Script Hash in Pay to Script Hash Address
I'm trying to generate a multisignature, segwit compatible address as a P2WSH nested in BIP16 P2SH as described in BIP141. Basically, I want to construct a P2WSH-nested-in-P2SH address from n public ...
- 143
2
votes
2
answers
1k
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signrawtransaction of a P2SH-P2WPKH spend seems to be broken?
I'm trying to spend a SegWit output on testnet using the Bitcoin core's RPC commands.
Without importing the private key into my wallet (i.e. w/o addwitnessaddress).
I wonder if anyone had luck ...
- 21
10
votes
1
answer
9k
views
Difference between a SegWit address and a P2SH address
Let there be an address 3ABCDEFGHJKDJHDH....
How can I understand if it's a SegWit address or a MultiSig address?
- 10.2k
5
votes
2
answers
2k
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Birthday attack on P2SH
The Segwit Benefits document has this to say about P2SH security for base transactions:
Multisig payments currently use P2SH which is secured by the 160-bit HASH160 algorithm (RIPEMD of SHA256). ...
- 2,431
4
votes
1
answer
2k
views
Redeem script for segwit addresses
How does one derive the Redeem Script for the new Pay-to-Witness Pubkey Hash addresses? With existing P2SH it's revealed after providing N number of Public Keys through a createmultisig function in ...
- 5,676