Questions tagged [bip]

Bitcoin Improvement Proposal - a design document providing information to the Bitcoin community, or describing a new feature for Bitcoin or its processes or environment.

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1answer
18 views

why bip 34 uses two step on MASF(Miner Activated Soft Fork)?

in bip 34, which change to bitcoin version 1 -> 2, uses two step for network's consensus. step 1. check if 750 of the last 1000 blocks are version 2 or greater. step 2. check if 950 of the ...
0
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1answer
36 views

Bitcoin privacy - current state of privacy BIPs - is mimblewimble broken?

Community, what is the current state of privacy related BIPs? Anything on the roadmap by core devs to be deployed on main chain within the next year? IF yes, could you link me to this BIP(s)? And ...
6
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1answer
415 views

Will Schnorr Multi-signatures completely replace ECDSA?

I stumbled upon the fact that schnorr signatures will most probably replace the current ECDSA system in a future BIP. Is it worth learning about ECDSA or this will become obsolete/useless/confusing ...
2
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1answer
48 views

bip-schnorr and HD Key Derivation

Is it safe to use HD Key Derivation with bip-schnorr? The bip mentions that you should not throw away the first byte of a generated key. It is important to not mix up the 32-byte bip-schnorr public ...
5
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1answer
451 views

Is Bitcoin PoW actually SHA256 + Merkle generation? Or have I misunderstood coinbase/append?

Miners can mutate nonce (32 bits) + time (mutates once a second). This allows for 232 (~4 billion) hashes per second. That's not enough anymore for our ASICs as they perform in the TH/s now rather ...
6
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1answer
135 views

How do BIP numbers get assigned?

Each BIP (Bitcoin Improvement Proposal) has a assigned number. For example BIP-2, BIP-42 and BIP-152. How does this number get assigned and by whom?
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1answer
47 views

are checksums included in mnemonic seed phrases?

say i have 24 words. Out of those 24 words, is the 24th one the checksum. say i have: a1 b2 c3 d4 e5 f6 g7 h8 i9 j10 k11 l12 m13 n14 o15 p16 q17 r18 s19 t20 u21 v22 w23 x24 is x24 the checksum? or ...
5
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1answer
975 views

Is there a reason to why Bitcoin Core does not implement BIP39?

Is there a specific reason to why BIP39 isn't added to Bitcoin Core? Seems very trivial to add and am confused to why it isn't there.
4
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1answer
107 views

What are the major technical differences between Bitcoin and Bitcoin Cash?

For a research project I'm trying to detect the major technical differences between Bitcoin and Bitcoin Cash. I know that BCH uses a larger block size and does not support SegWit. But what other ...
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1answer
171 views

Why seed from BIP39 mnemonic phrase is much longer than entropy?

BIP39 converts mnemonic "zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo wrong" to the fairly long seed "...
3
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1answer
70 views

What is the current Status of major proposed BTC upgrades like Taproot, MAST, Submarine Swaps?

I have read during the last year about some very interesting BIPs or initiatives. I am not asking for their explanations, just would be great if anyone would know about their simple status as of now, ...
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2answers
238 views

BIP44: What's the use of internal addresses?

I've read other questions (and their answers) on this but I still don't see the use for internal addresses. I get that you're supposed to send the change of a transaction there but I don't see how ...
3
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1answer
209 views

How does nSequence/Check Sequence Verify work?

How does relative timelock work? I mean, I know the theoretical description, but how to use nSequence concretely ? Can you do me a practical example with 2 sample transactions one of which locked with ...
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2answers
59 views

BIP 144 transaction format and soft-forks and old nodes

I was trying to manually parse a raw Bitcoin transaction in order to better understand how it works. This is how it starts: "0200000000010141035625cd030eca667c95d1729a" I think I've parsed the Tx ...
3
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1answer
141 views

Schnorr batch validation speed statistics

In this question Schnorr vs ECDSA I see in the Peter Wuille's answer the following comment about Schnorr signature batch validation: "Improving verification speed, by supporting batch validation of ...
12
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1answer
321 views

Schnorr's batch validation

In the recent BIP about Schnorr's standardization, Pieter Wuille presents an algorithm for batch validation. In my understanding the most heavy operation is the multiplication by a scalar: to make ...
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0answers
34 views

Mining block are not accepted if BIP related values changed to 0 or 1

I am creating own alt from LiteCoin source. So I have changed hashGenesisBlock , hashMerkleRoot , nonce , timestamp etc.Things are working fine if i don't make BIP34Height , BIP65Height , BIP66Height &...
1
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2answers
153 views

Is it possible to create batches of transactions in bitcoin blockchain?

Scenario: Suppose that I have to make three transactions simultaneously to Alice, Bob and Claudia. Now the condition is if any one transaction fails the other two must also not go through. Query: ...
3
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2answers
427 views

Why does the median-past time average the last 11 block timestamps and not the last 12?

As described in BIP-113. Wouldn't the last 12 blocks bring us closer to a one-hour offset (ie 120min, midpoint 60)?
3
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1answer
165 views

Why was BIP34 (Block v2, Height in Coinbase) not implemented via the coinbase tx's locktime or nSequence?

At some point in 2011/12 miners started using custom mining algorithms ignoring the best practise to mine to a different new public key (hash) for each subsequent block. This lead to a lack of ...
0
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1answer
257 views

Using seed to send bitcoin from a wallet's specific private key

I'm new to bitcoin and I've recently been reading on the concept of wallet. If I understand correctly, a wallet is a collection of one or more pairs address + private key (an address is where BTC can ...
0
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1answer
3k views

Private key to mnemonic words, is it safe?

Is it safe to do the following? Suppose I do not want the HD wallet, but I do want the convenience of using mnemonic words to remember the private key. I know I can convert the private key's hex ...
0
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2answers
266 views

BIP 44 master private key sign tx

I have this Bip44 path implemented m / purpose' / coin_type' / account' / change / address_index Is it possible to use the Master private key to sign all the tx ie. Bitcoin TX, Etherum TX or do I ...
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1answer
98 views

BIP Difference between final and active

What is the difference in the Bitcoins Improvements Proposals between the final status and the active status? According to the wiki An Proposed BIP may progress to Final only when specific ...
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3answers
71 views

What are the chances that Bitcoin changes its proof-concept one day?

Is it realistic/possible that the bitcoin core team make a new Bitcoin Improvement Proposal (BIP) on day in which they propose to change Proof of Work (POW) with something else (proof of stake for ...
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2answers
118 views

Why are some BIP numbers missing from BIPs list?

If I understood correctly https://github.com/bitcoin/bips contains a list of change proposals that have been accepted as BIPs by the BIP editor? Why are some of the numbers missing, for example 0155....
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0answers
27 views

How can i check which date BIP gets `final`

I want to sort BIP with respect to date they became final, but for some proposals on github there is no date specified, i think refereed as flag day. From where i can get final date of proposals?
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1answer
108 views

what this parameters do end what i need put on them in blockchain ver2

/** What block version to use for new blocks (pre versionbits) */ static const int32_t VERSIONBITS_LAST_OLD_BLOCK_VERSION = 4; /** What bits to set in version for versionbits blocks */ static const ...
2
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1answer
349 views

BIP91 is activated, why BIP141 is still dormant?

The moment is BIP91 activated non-SegWit signaling blocks will be orphaned. Since BIP91 is now activated won't that immediately boost BIP9 to 100%? Why is it not happening?
3
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2answers
1k views

Where can I find a complete list of Bitcoin forks (soft, hard, intentional and unintentional)

I was looking to study the history of Bitcoin forks including the 2013 incident that may or may not have been a Hard fork depending on your definition.
0
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1answer
315 views

How can miners alter timestamps to prevent or delay BIP09 feature activation?

In bitcoin mailing list , a proposal had the following concern. BIP 09 is vulnerable to miners fiddling with timestamps in a way that could prevent or delay activation - for example by only ...
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2answers
203 views

How are code changes (e.g. new features) to applications such as Bitcoin deployed and how is compatibility mainted?

How does Bitcoin deploy new features and manage different versions compatibility? For example if a new feature is added to Bitcoin, how is that then deployed and managed? That is, how is everyone on ...
3
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1answer
2k views

How to calculate the BIP34Hash?

I know this going to be a repeat question, however I am still puzzled with the implementation of the BIP34 especially where it come to its hash. Referring to the chainparams.cpp at github : https://...
4
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1answer
310 views

What is it that makes BIP149 safer to activate than BIP148?

There are currently two BIPs floating to enable a "user activated softfork" of Segregated Witness. BIP148 is meant to activate by flag day on August 1st 2017 whereas enforcing nodes stop accepting ...
2
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1answer
361 views

How to compute double sha256 shown in examples of bip 143?

How do I compute the double sha256 shown in example of bip 143? The example in Native P2WPKH hashPrevouts: dSHA256(...
3
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1answer
705 views

BIP 65 - how standard is it?

I read in this great thread that which BIP are standards is not always obvious. What about BIP 65? To which extent is it standard? Currently, all I know is that "Miners following the developers of ...
2
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1answer
650 views

BIP deterministic seeds, number of words and compatible wallets

I like to have a list of Bitcoin wallets that accepts various types of deterministic seeds. I have read that some seeds can not be imported in e.g. Electrum of other. So a list with following columns ...
2
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2answers
2k views

How does miner voting work?

I always here people talk about miners being able to "vote" on certain things using the block chain. So here are my questions: 1) who gets to ask the questions? 2) what type of questions are being ...
3
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1answer
879 views

Are BIP 100, 101 and 102 being voted on now by Bitcoin miners?

Are the BIP 100, BIP 101 and BIP 102 proposals being voted on now by miners? What is the procedure for a bitcoin miner to vote for a particular BIP and where can a tally of votes be viewed?
2
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1answer
913 views

What is the BIP-44 Coin Type for Dash?

BIP-44 compliant HD wallet trees use the m/purpose'/coin_type'/ account'/change/address_index convention to derive private keys and associated addresses. For coin_type, BIP-44 makes a reference to ...
3
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1answer
920 views

BIP 100: What votes are possible?

I understand that, with BIP 100 as suggested by Jeff Garzik, in the first step the maximum block size can be increased from (then, after the hard fork) 2 MByte to at most double of that, so 4 MByte - ...
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1answer
95 views

Is there a BIPs roadmap somewhere?

Which BIPs are already implemented by bitcoin-core and which are scheduled to be supported by the client in the scheduled releases? I found these questions to be relevant: Where can I find out ...
2
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1answer
169 views

Is BIP analogous to RFC?

It seems that a BIP (Bitcoin Improvement Proposal) is very similar to an RFC (Request for Comments). Can anybody confirm this, or describe major differences in the two approaches?
3
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1answer
196 views

Where can I find out which BIP (bitcoin improvement proposal) are going to be implemented or not?

Is there a site where I can see which BIP's are going to be implemented or not?
11
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1answer
801 views

What BIPs are supported by the standard client Bitcoin Core?

There is different BIP, each has a status. I read somewhere that BIPs are not considered part of the Bitcoin protocol until "active". Nevertheless, Bitcoin Core seems to support a number of BIPs that ...
10
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1answer
420 views

How is a BIP accepted?

Who decides to change the status from Draft to Accepted? BIP 0001 doesn't seem to clearly state this. Is this a vote by the developers? Whose vote exactly do we count? How is it conducted and ...
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2answers
1k views

What does BIP mean?

There is a lot of reference to BIP 16, 17 and the likes. What does BIP actually stand for? I'm unsure if this is a programming reference or a Bitcoin specific reference; either way I'm stumped.
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4answers
872 views

Why are the majority of miners not voting on on P2SH?

Link (via reddit) Currently the vast majority of miners just don't vote. Was there a mistake made in organizing the voting process (maybe most miners haven't heard about this vote?), or perhaps most ...