Not to be confused with coinbase (coinbase data) or coinbase reward
cold storage::
Refers to keeping a reserve of bitcoin offline. Cold storage is achieved when Bitcoin private keys are created and stored in a secure offline environment. Cold storage is important for anyone with bitcoin holdings. Online computers are vulnerable to hackers and should not be used to store a significant amount of bitcoin.
Refers to keeping a reserve of bitcoin offline. Cold storage is achieved when bitcoin private keys are created and stored in a secure offline environment. Cold storage is important for anyone with bitcoin holdings. Online computers are vulnerable to hackers and should not be used to store a significant amount of bitcoin.
confirmations::
Once a transaction is included in a block, it has one confirmation. As soon as _another_ block is mined on the same blockchain, the transaction has two confirmations, and so on. Six or more confirmations is considered sufficient proof that a transaction cannot be reversed.
@ -62,7 +62,7 @@ double-spending::
Double spending is the result of successfully spending some money more than once. Bitcoin protects against double-spending by verifying each transaction added to the block chain to ensure that the inputs for the transaction had not previously already been spent.
ECDSA::
Elliptic Curve Digital Signature Algorithm or ECDSA is a cryptographic algorithm used by Bitcoin to ensure that funds can only be spent by their rightful owners.
Elliptic Curve Digital Signature Algorithm or ECDSA is a cryptographic algorithm used by bitcoin to ensure that funds can only be spent by their rightful owners.
extra nonce::
As difficulty increased, miners often cycled through all 4 billion values of the nonce without finding a block. Because the coinbase script can store between 2 and 100 bytes of data, miners started using that space as extra nonce space, allowing them to explore a much larger range of block header values to find valid blocks.
@ -123,7 +123,7 @@ merkle root::
The root node of a merkle tree, a descendant of all the hashed pairs in the tree. Block headers must include a valid merkle root descended from all transactions in that block.
merkle tree::
A tree constructed by hashing paired data (the leaves), then pairing and hashing the results until a single hash remains, the merkle root. In Bitcoin, the leaves are almost always transactions from a single block.
A tree constructed by hashing paired data (the leaves), then pairing and hashing the results until a single hash remains, the merkle root. In bitcoin, the leaves are almost always transactions from a single block.
miner::
A network node that finds valid proof of work for new blocks, by repeated hashing.
@ -144,7 +144,7 @@ off-chain transactions::
An off-chain transaction is the movement of value outside of the block chain. While an on-chain transaction—usually referred to as simply __a transaction__—modifies the blockchain and depends on the blockchain to determine its validity an off-chain transaction relies on other methods to record and validate the transaction.
opcode::
Operation codes from the Bitcoin Script language which push data or perform functions within a pubkey script or signature script.
Operation codes from the bitcoin Script language which push data or perform functions within a pubkey script or signature script.
Open Assets protocol::
The Open Assets Protocol is a simple and powerful protocol built on top of the bitcoin blockchain. It allows issuance and transfer of user-created assets.
@ -180,7 +180,7 @@ P2WSH::
The difference between P2SH and P2WSH (Pay-to-Witness-Script-Hash) is about the cryptographic proof location change from the scriptSig field to the witness field and the scriptPubKey that is also modified.
paper wallet::
In the most specific sense, a paper wallet is a document containing all of the data necessary to generate any number of Bitcoin private keys, forming a wallet of keys. However, people often use the term to mean any way of storing bitcoin offline as a physical document. This second definition also includes paper keys and redeemable codes.
In the most specific sense, a paper wallet is a document containing all of the data necessary to generate any number of bitcoin private keys, forming a wallet of keys. However, people often use the term to mean any way of storing bitcoin offline as a physical document. This second definition also includes paper keys and redeemable codes.
passphrase::
A passphrase is an optional string created by the user that serves as an additional security factor protecting the seed, even when the seed is compromised by a thief. It can also be used as a form of plausible deniability, where a chosen passphrase leads to a wallet with a small amount of funds used to distract an attacker from the “real” wallet that contains the majority of funds.
@ -201,10 +201,10 @@ RIPEMD-160::
RIPEMD-160 is a 160-bit cryptographic hash function. RIPEMD-160 is a strengthened version of RIPEMD with a 160-bit hash result, and is expected to be secure for the next ten years or more.
satoshi::
A satoshi is the smallest denomination of bitcoin that can be recorded on the blockchain. It is the equivalent of 0.00000001 bitcoin and is named after the creator of Bitcoin, Satoshi Nakamoto. ((("satoshi")))
A satoshi is the smallest denomination of bitcoin that can be recorded on the blockchain. It is the equivalent of 0.00000001 bitcoin and is named after the creator of bitcoin, Satoshi Nakamoto. ((("satoshi")))
Satoshi Nakamoto::
Satoshi Nakamoto is the name used by the person or people who designed Bitcoin and created its original reference implementation, Bitcoin Core. As a part of the implementation, they also devised the first blockchain database. In the process they were the first to solve the double-spending problem for digital currency. Their real identity remains unknown.
Satoshi Nakamoto is the name used by the person or people who designed bitcoin and created its original reference implementation, Bitcoin Core. As a part of the implementation, they also devised the first blockchain database. In the process they were the first to solve the double-spending problem for digital currency. Their real identity remains unknown.
Script::
Bitcoin uses a scripting system for transactions. Forth-like, Script is simple, stack-based, and processed from left to right. It is purposefully not Turing-complete, with no loops.
Segregated Witness is an upgrade to the Bitcoin protocol in which signature ("witness") data is separated from sender/receiver data to further optimize the structure of transactions. Segregated Witness was implemented as a soft fork; a change that technically makes Bitcoin’s protocol rules more restrictive.
Segregated Witness is an upgrade to the Bitcoin protocol in which signature ("witness") data is separated from sender/receiver data to further optimize the structure of transactions. Segregated Witness was implemented as a soft fork; a change that technically makes bitcoin’s protocol rules more restrictive.
SHA::
The Secure Hash Algorithm or SHA is a family of cryptographic hash functions published by the National Institute of Standards and Technology (NIST).
Simplified Payment Verification (SPV)::
SPV or simplified payment verification is a method for verifying that particular transactions were included in a block, without downloading the entire block. This method of verification is often used by lightweight Bitcoin clients.
SPV or simplified payment verification is a method for verifying that particular transactions were included in a block, without downloading the entire block. This method of verification is often used by lightweight bitcoin clients.
soft fork::
soft fork or Soft-Forking Change is a temporary fork in the blockchain which commonly occurs when miners using non-upgraded nodes don't follow a new consensus rule their nodes don’t know about.
@ -240,7 +240,7 @@ stale block::
Not to be confused with orphan block or candidate block.
timelocks::
A timelock is a type of encumbrance that restricts the spending of some bitcoin until a specified future time or block height. Timelocks feature prominently in many Bitcoin contracts, including payment channels and hashed timelock contracts.
A timelock is a type of encumbrance that restricts the spending of some bitcoin until a specified future time or block height. Timelocks feature prominently in many bitcoin contracts, including payment channels and hashed timelock contracts.
transaction::
In simple terms, a transfer of bitcoin from one address to another. More precisely, a transaction is a signed data structure expressing a transfer of value. Transactions are transmitted over the bitcoin network, collected by miners, and included into blocks, made permanent on the blockchain.
rating89us
3 years ago
committed by