Questions tagged [bech32-address]

A checksummed base32 format, "Bech32", and a standard for native segregated witness output addresses using it.

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14
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2answers
6k views

How do bech32 addresses compare to P2SH addresses in transaction size?

Bech32 (starts with bc1) and P2SH (starts with 3) can both be used for segwit transactions. I know bech32 is supposed to create smaller transactions, but I'd like to know how much smaller (than P2SH). ...
12
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1answer
563 views

Will a Schnorr soft-fork introduce a new address format (i.e. not bech32)

When we (hopefully) soft-fork to Schnorr signatures will the address be indistinguishable from bech32 addresses?
10
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1answer
2k views

Bitcoin automatically diverted to bech32 address

I sent bitcoin to an address starting 3Cn using Electrum but the blockchain viewers seem to show that it has gone to an address beginning bc1 as shown in the link below. Transaction Viewer How can ...
9
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2answers
5k views

Bech32 conversion to legacy P2PKH?

Electrum now generates Bech32 addresses for SegWit wallets. Example: bc1qnntcclssmtuvfw2te7q49lzvw67cfvpzxger4j Pubkey: 023f1b3421c6ae0c1758834d40806c2418194b507be261fa343a0636653f3ec75b If I ...
8
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2answers
2k 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 ...
8
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1answer
2k views

How to create a Bech32 address from a public key?

What are the steps to create a Bech32 address from an ECDSA public key? Bitcoin wiki has a nice step-by-step guide to create an address from a public key but what about Bech32 addresses? I've read ...
7
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2answers
323 views

How does the bech32 length-extension mutation weakness work?

A bech32 address ending with p can be modified be inserting or removing q characters immediately before the final p character to make a new valid bech32 address. Why does this work? Are there any ...
7
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2answers
526 views

Most efficient way to store Segwit Address in a database

This is not a duplicate of What is the most efficient way to store bitcoin addresses in a database? but it's the same question except I need a segwit answer. Let's say I wanted to store every ...
7
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2answers
2k views

How do transaction costs compare between Bech32 addresses and legacy Bitcoin addresses?

Now that Electrum 3 supports Bech32 addresses for segwit, when sending coins to a legacy address are fees higher or cheaper?
6
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1answer
538 views

Can I mix P2PKH and P2WPKH inputs in the same transaction?

I'm trying to increase my knowledge of bech32 and SegWit and to that end am working my way through this explanation. Here's a hypothetical situation I'm trying to understand. Let's say Jamal has ...
6
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1answer
2k views

Which block explorers recognize bech32 addresses?

At this time, blockchain.info doesn't. Neither does blockchair or blockcypher.
6
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2answers
6k views

Benefits of Bech32 addresses?

In Bitcoin core, when generating a new address for receiving a payment, you get this dialogue: There is a tick-box for "Generate Bech32 address". I understand that this is a relatively new feature ...
5
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1answer
544 views

What are the standard formats of transaction outputs?

A transaction output can have the type Pay to public key hash, P2PKH, where the ScriptPubKey field has the format: 76 a9 14 <20-byte hash of pubkey> 88 ac Pay to script hash, P2SH, used for e.g. ...
5
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1answer
504 views

Are Bech32 addresses safe for mainnet usage?

According to github bitcoin/bips, BIP-173 is still a draft. And i saw today that Electrum wallet start using it. Is this means that the specs for BIP-173 won't change in the future ? or the final ...
4
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1answer
657 views

How is Public Key extracted from (message, digital signature, address)

I'm under the impression that a public key is revealed when you sign a message. Given these 3 inputs. P2PKH Address, Digital Signature, Message. Is the public key exposed? If so, how do you extract ...
4
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1answer
757 views

In simple terms, what are the major differences between P2WPKH and P2WSH bech32 addresses?

I've read over the bip173, bip141, and bip143 specifications and they're a bit too technical to get at the simple answers I'm looking for.
3
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3answers
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Why bech32 address always starts with bc1q?

I understand that it starts bc1. But 'q' is not what I understand. Can someone explain to me?
3
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2answers
333 views

Would it be possible to dictate a bech32 address as a list of English words?

One of the reason for bech32 address is: "it'easier to dictate it over the phone". Is there an algorithm to convert a bech32 address into a list of English words that would make it even easier? ...
3
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3answers
4k views

Cashaddr (bech32) to legacy address format convertor for Bitcoin Cash

Several days ago our bitcoin cash core wallet started to generate addresses using the new format: bitcoincash:q...... . That's nice and differs from the bitcoin blockchain generated addresses, but ...
3
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1answer
1k views

How do I Derive Bech32 Address from P2WPKH Output Script?

I am building a small script to decode the raw coinbase transaction data into a human-readable viewer without external scripts to better my understanding around the subject. I've noticed that there ...
3
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1answer
156 views

bech32 addresses beginning with “bcrt…” on regtest

I'm playing around with regtest and wanted to generate a bech32 address. My Bitcoin Core version is 0.18.0. I ran getnewaddress "" bech32 and got an address that began with bcrt, like this one : ...
3
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2answers
1k views

Is there a paper wallet generator for the new bech32 bc1xxx segwit address?

Is there a paper wallet generator like bitaddress.org for the new bech32 bc1xxx segwit addresses?
3
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1answer
47 views

Checksum P2WSH failed

My goal is replicate the same P2WSH of https://en.bitcoin.it/wiki/BIP_0173 tb1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q0sl5k7 I'm able to generate the "first" part before checksum. ...
3
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1answer
67 views

Why can't bech32 addresses be mixed case?

I know that they cannot be mixed case due to their BIP but what was the intention behind this idea and would it be problematical to convert a mixed case bech32 address to a lower/upper case bech32 ...
3
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2answers
238 views

How is Bech32 based on BCH codes?

The Bech32 BIP declares that Bech32 is "based on BCH codes". But if you look at the wikipedia page on BCH codes, you see a lot of mathematical equations, but none of those equations seems to be ...
2
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3answers
519 views

Why does the decode function of the segwit bech32 encoder/decoder take a hrp (human readable part) as input?

Looking at the code referenced in bip-0173, specifically for example here: https://github.com/sipa/bech32/blob/master/ref/javascript/segwit_addr.js function decode (hrp, addr) { var dec = ...
2
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4answers
706 views

Are all three Bitcoin address types interoperable (legacy, segwit, native segwit)?

is it possible to send transactions back and forth between all 3 address types (legacy, segwit, native segwit-bech32)? Or is one of them not able to send to another?
2
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1answer
317 views

Are “1” , “3” and “Bech” Addresses (BTC) forward and backward compatible?

Wondering if lets say someone has funds in Bech32 and they send to a "1" or "3" address due to less characters to remember ect.
2
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2answers
606 views

Constructing a P2WSH address from the BIP173 spec

The BIP173 specification defines how to create Bech32 Segwit native addresses. In the examples section a public key is given: 0279BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798. ...
2
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1answer
606 views

How to generate a P2WSH address

getnewaddress "" bech32 generates a P2WPKH address (e.g. tb1qw508d6qejxtdg4y5r3zarvary0c5xw7kxpjzsx). How can I generate a P2WSH address (e.g. ...
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1answer
911 views

understanding bech32 Addresses / BIP173 question

I try to understand the code from the BIP173. I read the BIP, the links to RFC3548 or z-base-32, the base32 proposal by Mark Friedenbach, and some posts here. Q1: how to interprete script handling? ...
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1answer
2k views

Litecoin address starting with ltc

my litecoin wallet (shared 2 of 2) on electrum-ltc generated an address to receive LTC. I transfered some LTC to that address and tried to check in block explorer. Unfortunately got such message: ...
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1answer
41 views

For the 3 bitcoin address types, which can send to each other? Can a valid tx be created that spends to an unspendable address?

I'm just getting started with using bech32 addresses instead of legacy addresses, and I'm not familiar with how the legacy vs segwit compatible vs bech32 addresses play with each other. Can I get an ...
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2answers
209 views

Bitcoin API with bech32 support

Since a while, I have been using the insight-api to view bitcoin transactions. However, recently I have found out that bech32 addresses are not supported. Now I try to fix this issue and I am open ...
1
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1answer
137 views

Is Bech32 transaction on blockchain.info size accurate?

I have made a transaction and paid like 120 sat/B, on blockchain it says that I've paid 78.995 sat/B and noticed that transaction size is 191 (bytes) Transaction size supposed to be: 102 (input) + ...
1
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1answer
250 views

Witness program hash mismatch while signing bech32 transaction

I'm trying to sign a transaction using signrawtransactionwithkey on bitcoin-core 0.17 but I'm getting the following error: {"ERROR":"[{"txid":"...
1
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1answer
513 views

Bech32-P2WSH BIP32 derivation path

I know that the deriving path for Bech32 is 84, but what about P2WSH addresses path is it the same? I've been reading https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki but nothing on ...
1
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1answer
332 views

Does Bech32 address format not decrease Bitcoin's possible addresses?

Sorry for my poor English, but as many of us, I have wondered how many Bitcoin addresses are possible. When looking around, I stumbled upon this thread on BitcoinTalk: There are exactly 2^160 ...
1
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1answer
736 views

bech32 addresses for segwit support in mycellium and coinomi?

Does mycellium and coinomi for android support bech32 addresses for segwit? If they don't would it throw an error if you tried to send it there?
1
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1answer
106 views

Why do most exchanges still have not implemented segwit bc1 addresses to save block space?

Segwit bech32 bc1 addresses has been out for a good 2 years. Why do most exchanges still refuse to implement such a feature for its users? Exchanges create a bulk of the bitcoin transactions and also ...
1
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1answer
344 views

Can you send a transaction from non-native segwit to native(bech32) segwit address?

Let's say I have a wallet with a non-native segwit address (prefixed with 3- like multisig). Can I send my utxos from this address to a native segwit (bech32) address?
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1answer
258 views

Pros / Cons of using the new bc1xxx segwit address vs the 3xxx segwit address?

What are the pros/cons of using the new bc1xxx segwit address vs the 3xxx segwit address?
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1answer
337 views

Which wallets can send to native segregated witness output addresses today?

Which wallets today are able to send to P2WPKH addresses starting with bc1qf…?
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0answers
61 views

Bitcoin address to Hash160 for brainflayer

I took a script to translate the bitcoin address to hash160: http://lenschulwitz.com/b58/base58perl.txt replaced the lines for working with the list from the file: #Sample test taken from https://en....
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0answers
24 views

How does supporting additional 'Address Chains' impact resource usage for an SPV wallet?

On Reddit I encountered a user claiming that implementing Segwit support for an SPV wallet would require supporting an 'additional address chain', but I'm not sure what exactly that entails. I would ...
0
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3answers
1k views

Convert bech32 Bitcoin address to legacy

I know that similar tools exist for BCH (e.g. https://cashaddr.bitcoincash.org/). Is there a way to convert a native segwit bech32 Bitcoin address to a legacy format?
0
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1answer
90 views

sendtoaddress command doesn't work with bech32 bitcoin core 0.17

I have bitcoin-core 0.17 working on regtest mode and when I try to send to a bech32 testnet address I get invalid address I have set addresstype=bech32 on my bitcoin.conf
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2answers
287 views

Using BitcoinJS - How do you verify a message using a segwit bech32 (bc1…) / P2SH (3…) addresses?

I created a signature from a message using my private key. But how do I verify this signed message using my segwit addresses of 3... or bc1...? How do I verify this using the BitcoinJS library?
0
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1answer
555 views

Is a P2WPKH address synonymous with a Bech32 address?

BIP142 when encoding a segwit P2WPKH address is using a base58 address format (address p2xtZoXeX5X8BP8JfFhQK2nD3emtjch7UeFm in the example). I understand that BIP142 predates BIP173 but are P2WPKH ...
0
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1answer
66 views

Why does Bisq claim that my “native segwit” receive addresses are “invalid”?

Every time I'm transferring over the funds from Bisq to Bitcoin Core, I get the error: Invalid address. (Or something along those lines.) Only after generating another receive address in Bitcoin ...