Questions tagged [terminology]

Questions concerning terminology, jargon, abbreviations, acronyms and phrases that are essential to the cryptocurrency community.

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31
votes
4answers
55k views

What are orphaned and stale blocks?

If I understand it right, a stale block is a block for which an earlier confirmation has been found and was accepted by majority of people. This block is considered invalid and is later never used. ...
5
votes
1answer
37 views

How do we know which soft-forks were implemented using User-Activated Soft Fork or Miner-Activated Soft Fork?

This seems to be the most common definition When a majority of miners upgrade to enforce new rules, it is called a miner-activated soft fork (MASF). When full nodes coordinate to enforce new rules, ...
10
votes
2answers
4k views

What is the minRelayTxFee?

What is the minRelayTxFee? What is it used for, what's the default value and how does the value change?
2
votes
1answer
35 views

What does “Green address verification” mean in the context of transaction validation?

I am only new to Bitcoin and I would like to know what a "Green address verification" is. I have an Electrum wallet ver 3.3.6 and I think the term is being used in the context of faster transactions ...
51
votes
6answers
29k views

What is meant by Bitcoin dust?

I've seen the term "dust" used to describe small transactions that might be considered as spam by the Bitcoin network. Is there is a generally accepted definition of this term?
154
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5answers
246k views

What is a 'Satoshi'?

I am aware that Satoshi Nakamoto is the author of the paper that originated Bitcoin and the creator of the original bitcoin client. However, I often hear the term Satoshi as if it was a monetary unit. ...
1
vote
1answer
1k views

What exactly does censorship resistance mean?

What features are needed for censorship resistant blockchain? In what situation can you say it's not censorship resistant?
0
votes
1answer
29 views

What do “support” and “resistance” mean?

I'm still very much a newbie to all this and would like to get some help.
9
votes
5answers
4k views

Plain text for the Bitcoin symbol

It seems that the most widely used symbol for Bitcoin is a B with two vertical lines through it1. It makes sense, as a single letter with a line or two through it is common for many currencies. Is ...
8
votes
1answer
556 views
1
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1answer
89 views

In what way does Spectre have “weak” liveness?

In his article The Spectre Protocol, Aviv Zohar, one of Spectre's authors, mentions that Spectre has weak liveness. Why does he mention that Spectre has "weak" liveness, and how would "strong liveness"...
0
votes
2answers
29 views

what is referred as coin in bitcoin network?

I gathered information about bitcoin from various resources. All those resources said that when a transaction is done, the transaction get added to a block. So when Alice send 2 btc to Bob, network ...
5
votes
1answer
5k views

What does the Bitcoin RPC mean and how is it used?

What does Bitcoin RPC mean and how is it used? I see the term RPC referenced multiple times, but not show what it means and how its used. I see it in JSON-RPC. I know json is just a data format, ...
5
votes
3answers
1k views

What is the meaning of the term “full-node”?

There seem to be some different interpretations of what the term "full-node" implies. E.g. there seems to be some disagreement whether a pruned node is still a full-node. So: What characteristics ...
0
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4answers
84 views

Is blockchain always “public”?

Is the following definition of blockchain by its wikipwdia page correct? Where it is mentioned: A blockchain is a decentralized, distributed and public digital ledger ... Cannot we have a ...
0
votes
1answer
1k views

What does mBtc mean [duplicate]

I’m using Electrum 3.3.8 and I recently made a sale and got 0.83 mBTC. I’ve tried to convert the mBTC to USD. it says i have $5000+ but I was selling the product for only $6
3
votes
1answer
168 views

What is an extended fingerprint (xfp) and how does it differ from an xpub?

Coldcard requires the xfps of all of its cosigners to be able to verify and sign multisig transactions. Providing the coldcard with just the xpubs is not enough, which I believe to mean that the xfp ...
11
votes
4answers
18k views

What is the difference between a miner and a full node?

I have trouble finding the difference between a full node and a miner. It looks like these two names are used interchangeably which I think is not entirely correct. Miners do process blocks and full ...
4
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2answers
2k views

What is the difference between on-chain scaling and off-chain scaling?

What is on-chain scaling and off-chain scaling? What is the core difference between on-chain scaling and off-chain scaling?
2
votes
1answer
146 views

What is QuoteAssetVolume and BaseAssetVolume?

This is a JSON result for a candle returned by an exchange API for ETHBTC: { openTime: 1517340600000, open: '0.10635000', high: '0.10742000', low: '0.10635000', close: '0.10687200', volume: ...
-1
votes
1answer
2k views

CPUminer minerd output confusion (OLY & crypticpool). How do I get multiple, “yay!!!” in a single block?

I'm a bit confused by the output of my minerd from cpuminer because my understanding is that there is a 3 minute block target time, but somehow I got 4 submitted hashes in less than a minute, and it ...
13
votes
2answers
5k views

What's the difference between a bitcoin client and wallet?

I would like to know what is the difference between a client and wallet.
6
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3answers
9k views

What does “lock time” mean?

I got a transaction that is still not confirmed for about one week, and I can see a field called "Lock Time" that says: Lock Time Block: 419382 https://blockchain.info/en/tx/...
3
votes
3answers
83 views

What is “consensus”?

I’m really struggling to get my head around a particular piece of lingo in the bitcoin/blockchain space, and would really appreciate if someone was able to give a bit of clarity. I have been doing a ...
2
votes
1answer
241 views

what is measured in units of sat/kw?

Whilst learning about bitcoin & lightning fees I have encountered the abbreviation sat/kw a few times, most recently here: Why can’t lightning tx’s be signed with sighash single to allow for fee ...
1
vote
1answer
184 views

“Fork choice rule” : A general term? or a specific algorithm?

Is "Fork choice rule" a general term including all the algorithms used for choosing a branch among other branches in a fork (including longest chain rule in Bitcoin etc) ? Or is it a specific ...
2
votes
0answers
42 views

How to detect a consensus is BFT or not? [closed]

Can we divide consensus algorithms into BFT (Byzantine Fault Tolerant) and non-BFT ? If so, How to detect a consensus is BFT or non-BFT ? Is there any non-BFT consensus algorithm example ?
0
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5answers
3k views

Are BTC and Bitcoin Core the same?

I recently saw an offer to "Buy Bitcoin Core with your credit card". Is this "Bitcoin Core" the same thing as BTC?
2
votes
2answers
745 views

What is a txn? How can it be invalid?

I read this in a IRC exchange: verifies your txns against a random node that you don't control. if for some reason that node went rogue, you might have accepted an invalid txn What is a txn?
2
votes
1answer
162 views

Why do we need to chain the blocks (creating blockchain) in a permissioned blockchain?

The main question is: What does "chaining block" mean in a permissioned blockchain? OR in any blockchain network in which creating a new block does NOT need consuming resources/energy ? (even in the ...
37
votes
3answers
9k views

What are checkpoints?

I often read that checkpoints protect the network from a 51% attack because an attacker cannot reverse transactions made before the last checkpoint. How exactly does this checkpoint mechanism work? ...
3
votes
2answers
352 views

What is the unit of time_lock_delta in LND?

LND has a configuration setting called time_lock_delta with the description "The required timelock delta for HTLCs forwarded over the channel.". I assume this to refer to some measure of time, but ...
1
vote
3answers
76 views

What does channel num_updates mean?

Some LND wallets provide a channel's "Number of Updates". Here's an example from Zap Desktop: The LND gRPC API Channel Reference cites a property called num_updates. The description of this field is ...
0
votes
1answer
63 views

Required conditions to be selected as intermediary node (Payment Service Provider) in Lightning Network?

I bring up some important questions about terminology of the Lightning Network and how to select the intermediary node as the Payment Service Provider in a routing channel: The following video (Link ...
2
votes
1answer
86 views

“stable-coins”: A formal definition?

In crypto-currency news, we might heard about term of "stable-coins". Can we define a stable-coin as follows: A crypto-currency that is pegged to a fiat / formal currency to minimize the ...
6
votes
4answers
974 views

What is a Bitcoin wallet?

What is a wallet in the context of Bitcoin? What are wallets used for? What relation do wallets have to other concepts such as addresses, private-keys, client-software, and Bitcoin balances?
1
vote
1answer
37 views

Is there any “permissionless” blockchain “without a native coin”?

We may certainly say that a "permissioned" blockchain cannot have a native coin (or cryptocurreny) since in permissioned blockchain we need a permission to be eligible to participate for transactions ...
1
vote
1answer
92 views

If Bitcoin addresses are a single-use token, how several transactions belong to a single address? (Edited)

While in Bitcoin wiki (Link to the page) is explicitly mentioned: "A Bitcoin address is a single-use token." We therefore expect that every address would be belonged to only a single transaction ...
1
vote
1answer
172 views

How to fund a bidirectional channel in Lightning Network by two participants? (Edited)

I brought up a similar question here: (Link to question) for a payment channel (in general case and without specifying which payment channel implementation.) Since this funding channels depends on the ...
0
votes
1answer
66 views

meaning of “full node” in Lightning Network?

According to this answer: (Link to answer), "A 'full node' refers to a fully validating node on the Bitcoin network, meaning the node validates each block and transaction that happens on the ...
70
votes
2answers
32k views

What is an SPV client?

I've seen SPV client mentioned in several places. What exactly is a SPV client? How is it different from a standard client?
4
votes
1answer
181 views

Lightning Network: asymmetry in the information tracked by each participant?

In following paper, written by Christian Decker et al., there is a paragraph that is not clear to me. eltoo: A Simple Layer2 Protocol for Bitcoin "The central idea of Lightning is to invalidate ...
1
vote
1answer
61 views

Implementing an “ad-hoc-like network of payment channels” on top of Bitcoin network?

If we define an ad-hoc network as follows: "An ad hoc network is a network that is composed of individual devices communicating with each other directly." [1] ad-hoc networks do not rely on ...
8
votes
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.
3
votes
2answers
10k views

What is a worker?

Lots of cryptocoin sites and in particular mining pools use the term 'worker,' but there is no clear definition. What is a worker?
-1
votes
1answer
40 views

What does Starkware Industries mean?

What does Starkware Industries mean? Is it related to Zcash company? Its name apparently comes from Zero Knowledge Stark (zk-STARKs). I appreciate it if someone could define Starkware Industries in ...
1
vote
1answer
99 views

What is a “half” in Bitcoin?

I saw in an article something about a Bitcoin algorithm half in 2020. What exactly is this? I have tried looking this up but I couldn't find anything that told me what it was only a website counting ...
2
votes
2answers
699 views

Exact definition of “Liveness” and “Safety” properties in a consensus?

Two main properties of a consensus are "Liveness" and "Safety". What are the exact and precised definition of "Liveness" and "Safety" properties in a consensus ? Are the following definitions ...
0
votes
1answer
41 views

Proper grammar regarding Bulletproofs

For non-native speakers talking about Bulletproofs with correct grammar is tricky. I tried to use the white paper as a reference, but it is not consistent. Even in the abstract it mixes plural and ...
7
votes
3answers
11k views

What does “ASIC” mean?

I stumbled on the terms "ASIC" and " ASIC Miner", what do they mean? Is this something related to special hardware?