21

I'm sorry to be the bearer of bad news: It looks like your funds are gone and the security of your computer is compromised. A quick google suggests that is one of the electrum phishing destination addresses. You can find more information on the attacks against electrum here: http://electrum-malware.surge.sh/


15

They will be distinguishable, but they will still be bech32 addresses. The introduction of Schnorr signatures requires a new type of output. Segwit was designed with such extensibility in mind, and it defines 17 version numbers. Currently, only version 0 is used. Segwit v0 outputs with a 20-byte hash are known as P2WPKH outputs, and v0 outputs with a 32-...


13

Background P2TR addresses will be encoded using Bech32, although likely an amended version. In anticipation of Taproot getting merged, some proponents tested the behavior of various wallets and services regarding segwit v1 outputs. BIP173 prescribes that known restrictions should be enforced for Bech32 addresses, but that "implementations MUST allow the ...


12

Is it safe to receive funds at this 1FJJd... address? Kind of. Your wallet knows the private key that corresponds to that address as it is the same private key for the bech32 address. However it does not necessarily know that it should be looking for coins sent to this address, so any transactions that send coins to that address may not appear in your ...


12

TL;DR: Native segwit refers to segwit outputs without P2SH-wrapper. Bech32 is the address format used to represent native segwit-v0 locking scripts. Wrapped segwit vs native segwit When segwit activated, it introduced the zeroth generation of segwit, segwit-v0. The corresponding locking scripts came in two flavors: The forward-compatible "wrapped ...


11

bech32 produces smaller transactions than P2SH segwit transactions. one extra byte per output to create P2SH outputs than to create bech32 utxos (P2SH uses OP_HASH160 and OP_EQUAL in addition to a 20 byte hash in its script, whereas bech32 just uses a fixed 00 byte in addition to a 20 byte hash), and 23 extra bytes per input to spend from P2SH utxos than ...


11

Is it acceptable to mix P2PKH and P2WPKH inputs in the same transaction as described above? Yes, absolutely. In the same way that you can mix multisig and P2SH and P2PK inputs in the same transaction. When would I encounter a situation where "all txins in a transaction are not associated with any witness data" When you're not spending any SegWit outputs....


10

Ok, I figured out how to do it. You need 3 pieces of information to construct the bech32 address. hrp: the human-readable part. This is bc for mainnet and tb for testnet witver: the witness version. This is 0 at the moment represented by the byte 0x00 but it can go up to 16 when they add more versions. witprog: the witness programm. In case you want a Pay-...


10

Bech32 is an address format that was only recently proposed. While its design had input from multiple wallet authors, it is way too early to say anything about adoption. It is important to realize that there is no hurry about this. Every usable address type is available through embedding in P2SH, which is compatible with every wallet created the past few ...


10

I'm going to provide a more algebraic explanation of the issue. Every valid (and invalid) Bech32 string can be seen as a polynomial in the variable x, where the coefficients are elements of GF(32). I'm going to ignore the GF(32) part in what follows, so it suffices to say that they're simply numbers from 0 to 31 inclusive, with weird addition and ...


9

Blockchair announced support for Bech32 addresses last month. This page about Bech32 adoption on bitcoin.it wiki page is tracking blockexplorers that support Bech32 addresses.


9

An algorithm called Public Key Recovery exists for ECDSA, which lets you construct the public keys for which a given pair of message and signature would be valid. To explain the algorithm, remember that ECDSA signatures are pairs (r,s) for which sR = mG + rP. In this equation m is the message hash (which must be a hash of a known message), P is the public ...


9

Segwit addresses like the one you posted are case insensitive. Assuming your wallet is up to the spec, it should be able to send the BTC just fine. If you have a transaction ID, look it up on an explorer to see if it has been confirmed. If you don't have a transaction ID, and you have the private keys for the wallet, you should simply be able to make another ...


8

Transfer from Legacy ⟶ SegWit: pay full fee (doesn't benefit from SegWit discount) Transfer from SegWit ⟶ Legacy or SegWit: discounted. Note: SegWit addresses can be Bech32 bc1... or they can be nested in a legacy P2SH 3... address which are backwards-compatible (although less efficient). Many exchanges, wallets support the legacy "nested" form ...


8

q is the Bech32 encoding of the number 0. For a segwit address, as defined in BIP 173, the number immediately following the separator is the witness version. In this case, bc1q, the q means it is a witness v0 address, which is the only type currently used but allows for easy future addition of new versions


8

The HRP is part of the bech32 encoded string, and in the bech32 decoding API, it is returned along with the payload by the decoder, after checking the checksum. We still want to compare it with the expected HRP in BIP173, which encodes the chain the software is operating on. Otherwise you could have a testnet node that accepts mainnet BIP173 addresses or ...


8

Is there a way to get to the hash160 address from bc1q34aq5drpuwy3wgl9lhup9892qp6svr8ldzyy7c Yes, you could use the reference implementations in various languages to encode and decode a bech32 address. For example, I have decoded the sample address you mentioned in the question, bc1q34aq5drpuwy3wgl9lhup9892qp6svr8ldzyy7c, using python below. The decode ...


7

The difference lies in the encoding and the underlying representation in the transaction data stored on the blockchain. The 3-segwit addresses are known as P2SH-P2WPKH or P2SH-P2WSH. This stands for Pay-to-witness-pubkey-hash wrapped in pay-to-script-hash and pay-to-witness-script-hash wrapped in pay-to-script-hash respectively. This was done to provide ...


7

There are no restrictions on sending from any type of outputs to any address type in the Bitcoin protocol, but some older wallets might not support sending to newer address types. Let's take a better look at what happens for a Bitcoin transaction coming to pass: The recipient picks an address they would like to receive funds to. This will be an address ...


6

how to interprete script handling? What you're missing is that BIP173 is not a way to encode public keys or scripts. It is a way to encode segwit transaction outputs. What those outputs are and mean is currently in BIP141 and BIP143 - but may change over time, without BIP173 changing. All segwit transaction outputs (current and future) have the following ...


6

There's no big difference for users between the two. The fee is lower while using native Segwit address (bech32), and the address format differs. Let's look at the motivations of bech32 address authors: Old addresses (base58) need a lot of space in QR codes, as it cannot use the alphanumeric mode. The mixed case in (old addresses) base58 makes it ...


6

Okay so I think I've figured it out for anyone else wondering what exactly you have to do to derive an address from this type. In the case of the already mentioned transaction, (coinbase of block 542748) we first start by looking at the full decoded output script. 0 PUSHDATA(20) 97cfc76442fe717f2a3f0cc9c175f7561b661997 The very first OP_0 in the decoded ...


6

First of all, what are you trying to do? Why do you need a P2WSH address? A P2WSH address (and P2SH addresses earlier) send coins to a script, which requires satisfying that script to decode. A script of the form <key> CHECKSIG is wasteful - you should be using P2WPKH instead. In general, you use P2WSH when you have more complex spending requirements ...


6

P2WPKH - This stands for "Pay To Witness Public Key Hash" and the scriptPubkey is OP_0 0x14 {20-byte-hash}, where OP_0 is the version, byte 0x14 is the size of the data, and the {20-byte-hash} is a HASH160(PubKey). P2WSH - This stands for "Pay To Witness Script Hash" and the scriptPubkey is OP_0 0x20 {32-byte-hash}, where OP_0 is the version, byte 0x20 is ...


6

All current addresses are cross compatible. At a technical level, the chain has no concept of an address, only of locking scripts, which are fragments of a bitcoin script program. You send coins by specifying the locking script, and spend them by providing the unlocking script (also called the script sig), which completes the program by providing the ...


6

The NATO phonetic alphabet is designed for this purpose and is very widely recognized by a number of people in communication critical industries. The words are clearly recognizable even to the unfamiliar and is intended to not be able to be mistaken. Due to bech32 encoding there’s no need for communication of capital letters as you would need for p2pkh ...


6

At a protocol level, they are all compatible. Transactions can spend any of them, and send to any of them. Wallet software may of course have restrictions, but these are usually not about combinations. E.g. some wallets may be unable to generate a p2sh-segwit address to receive on, or be unable to send to bech32. However, I have not heard about software ...


6

Yes. Each address type contains new features, but all are compatible with each other. SegWit is an improvement in the transaction protocol. A SegWit transaction splits (segregates) a transaction into two pieces: one containing the standard legacy data (to, from, amount,...), plus a scripted piece of that data (witness) that is 75% smaller on-chain. Since the ...


6

Bech32 addresses are defined in BIP 173. This slide is taken from Pieter Wuille's presentation on bech32 at SF Bitcoin Devs in March 2017. Different prefixes A list of address prefixes on the Bitcoin wiki is here. bc is representing Bitcoin (mainnet) Testnet bech32 addresses start tb Signet (both default Signet and custom Signets) bech32 addresses also ...


5

are P2WPKH and Bech32 synonyms now? No. Bech32 is also used for P2WSH addresses. Native segwit and Bech32 are synonyms. Is there such a thing as Base58 P2WPKH address? No.


Only top voted, non community-wiki answers of a minimum length are eligible