Bitcoin (BTC) Price, Market Cap, Exchanges, Volume, Ratings & Reviews | Coinpare
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Cryptocurrencies: 2,980 Market Cap: $583,225,083,127 24h Vol: $227,289,645,732 BTC: 60.55% ETH: 11.82% USDT: 3.20% ETH Gas: 27 gwei
Bitcoin
Blockchain

Bitcoin

Blockchain

Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part.

Coin Details
Ticker:
BTC
Algorithm
SHA-256
Consensus
PoW
Premined
No
Open Source
Yes
Hardware Wallet
Yes
Next Halving:
Explorers:
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Bitcoin BTC Rank 1
$19,033.07 (3.62%)
31.35 ETH (1.75%)
1 ETH ≈ 0.031897 BTC
BTC
USD
Market Cap:
$353,123,357,951
Fully Diluted Market Cap:
$399,694,419,383
Volume 24h:
$36,040,503,218
ATH:
$20,089
ATH Date:
17 December 2017
From ATH / To ATH:
-5.26% / 5.55%
Circulating Supply:
18,553,150 BTC
Total Supply:
21,000,000 BTC
Loading data from server...
Change USD
1h -0.12%
24h 3.62%
7d 7.84%
30d 45.86%
1y 166.14%
Change BTC
1h -
24h -
7d -
30d -
1y -
Change ETH
1h -0.27%
24h 1.75%
7d -14.47%
30d -1.96%
1y -35.77%
To The Moon 🚀🌕
BTC
ROI x1

USD Amount -
BTC Amount -
ETH Amount -
Price $19,033
Market Cap $353,123,357,951
Fully Diluted Market Cap $399,694,419,383
BTC Price -
ETH Price 31.35095042
Bitcoin (BTC) is a cryptocurrency, the latest Bitcoin price is $19,033.07, up 3.62% in the last 24 hours. Bitcoin market cap is $353,123,357,951 with a 24h volume of $36,040,503,218. It has a circulating supply of 18,553,150 BTC and a total supply of 21,000,000 BTC. Bitcoin reached it's all time high on 17 December 2017 when it was trading at $20,089.
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Creation
The domain name "bitcoin.org" was registered on 18 August 2008. On 31 October 2008, a link to a paper authored by Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System was posted to a cryptography mailing list. Nakamoto implemented the bitcoin software as open-source code and released it in January 2009. Nakamoto's identity remains unknown. On 3 January 2009, the bitcoin network was created when Nakamoto mined the first block of the chain, known as the genesis block. Embedded in the coinbase of this block was the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks". This note references a headline published by The Times and has been interpreted as both a timestamp and a comment on the instability caused by fractional-reserve banking. The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who had created the first reusable proof-of-work system (RPoW) in 2004. Finney downloaded the bitcoin software on its release date, and on 12 January 2009 received ten bitcoins from Nakamoto. Other early cypherpunk supporters were creators of bitcoin predecessors: Wei Dai, creator of b-money, and Nick Szabo, creator of bit gold. In 2010, the first known commercial transaction using bitcoin occurred when programmer Laszlo Hanyecz bought two Papa John's pizzas for Ƀ10,000.

Balances - Blockchain
The block chain is a shared public ledger on which the entire Bitcoin network relies. All confirmed transactions are included in the block chain. It allows Bitcoin wallets to calculate their spendable balance so that new transactions can be verified thereby ensuring they're actually owned by the spender. The integrity and the chronological order of the block chain are enforced with cryptography.

Transactions - Private Keys
A transaction is a transfer of value between Bitcoin wallets that gets included in the block chain. Bitcoin wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet. The signature also prevents the transaction from being altered by anybody once it has been issued. All transactions are broadcast to the network and usually begin to be confirmed within 10-20 minutes, through a process called mining.

Processing - Mining
Mining is a distributed consensus system that is used to confirm pending transactions by including them in the block chain. It enforces a chronological order in the block chain, protects the neutrality of the network, and allows different computers to agree on the state of the system. To be confirmed, transactions must be packed in a block that fits very strict cryptographic rules that will be verified by the network. These rules prevent previous blocks from being modified because doing so would invalidate all the subsequent blocks. Mining also creates the equivalent of a competitive lottery that prevents any individual from easily adding new blocks consecutively to the block chain. In this way, no group or individuals can control what is included in the block chain or replace parts of the block chain to roll back their own spends. Nakamoto set a monetary policy based on artificial scarcity at bitcoin's inception that the total number of bitcoins could never exceed 21 million. New bitcoins are created roughly every ten minutes and the rate at which they are generated drops by half about every four years until all will be in circulation.

Bitcoin is Decentralized

  • Bitcoin does not have a central authority.
  • There is no central server; the bitcoin network is peer-to-peer.
  • There is no central storage; the bitcoin ledger is distributed.
  • The ledger is public; anybody can store it on their computer.
  • There is no single administrator; the ledger is maintained by a network of equally privileged miners.
  • Anybody can become a miner.
  • The additions to the ledger are maintained through competition. Until a new block is added to the ledger, it is not known which miner will create the block.
  • The issuance of bitcoins is decentralized. They are issued as a reward for the creation of a new block.
  • Anybody can create a new bitcoin address (a bitcoin counterpart of a bank account) without needing any approval.
  • Anybody can send a transaction to the network without needing any approval; the network merely confirms that the transaction is legitimate.

Privacy
Bitcoin is pseudonymous, meaning that funds are not tied to real-world entities but rather bitcoin addresses. Owners of bitcoin addresses are not explicitly identified, but all transactions on the blockchain are public. In addition, transactions can be linked to individuals and companies through "idioms of use" (e.g., transactions that spend coins from multiple inputs indicate that the inputs may have a common owner) and corroborating public transaction data with known information on owners of certain addresses. Additionally, bitcoin exchanges, where bitcoins are traded for traditional currencies, may be required by law to collect personal information. To heighten financial privacy, a new bitcoin address can be generated for each transaction.

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Rank 1


Bitcoin BTC

$19,033.07 (3.62%)
31.35 ETH (1.75%)
Market Cap:
$353,123,357,951
Fully Diluted Market Cap:
$399,694,419,383
Volume 24h:
$36,040,503,218
ATH:
$20,089
ATH Date:
17 December 2017
From ATH / To ATH:
-5.26% / 5.55%
Circulating Supply:
18,553,150 BTC
Total Supply:
21,000,000 BTC
1 ETH:
≈ 0.031897 BTC
BTC
USD
Loading data from server...
Change USD
1h -0.12%
24h 3.62%
7d 7.84%
30d 45.86%
1y 166.14%
Change BTC
1h -
24h -
7d -
30d -
1y -
Change ETH
1h -0.27%
24h 1.75%
7d -14.47%
30d -1.96%
1y -35.77%
To The Moon 🚀🌕
BTC
ROI x1

USD Amount -
BTC Amount -
ETH Amount -
Price $19,033
Market Cap $353,123,357,951
Fully Diluted Market Cap $399,694,419,383
BTC Price -
ETH Price 31.35095042
Coin Details
Ticker:
BTC
Algorithm
SHA-256
Consensus
PoW
Premined
No
Open Source
Yes
Hardware Wallet
Yes
Next Halving:
Explorers:
Description
Category: Blockchain

Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part.

Bitcoin (BTC) is a cryptocurrency, the latest Bitcoin price is $19,033.07, up 3.62% in the last 24 hours. Bitcoin market cap is $353,123,357,951 with a 24h volume of $36,040,503,218. It has a circulating supply of 18,553,150 BTC and a total supply of 21,000,000 BTC. Bitcoin reached it's all time high on 17 December 2017 when it was trading at $20,089.
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Creation
The domain name "bitcoin.org" was registered on 18 August 2008. On 31 October 2008, a link to a paper authored by Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System was posted to a cryptography mailing list. Nakamoto implemented the bitcoin software as open-source code and released it in January 2009. Nakamoto's identity remains unknown. On 3 January 2009, the bitcoin network was created when Nakamoto mined the first block of the chain, known as the genesis block. Embedded in the coinbase of this block was the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks". This note references a headline published by The Times and has been interpreted as both a timestamp and a comment on the instability caused by fractional-reserve banking. The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who had created the first reusable proof-of-work system (RPoW) in 2004. Finney downloaded the bitcoin software on its release date, and on 12 January 2009 received ten bitcoins from Nakamoto. Other early cypherpunk supporters were creators of bitcoin predecessors: Wei Dai, creator of b-money, and Nick Szabo, creator of bit gold. In 2010, the first known commercial transaction using bitcoin occurred when programmer Laszlo Hanyecz bought two Papa John's pizzas for Ƀ10,000.

Balances - Blockchain
The block chain is a shared public ledger on which the entire Bitcoin network relies. All confirmed transactions are included in the block chain. It allows Bitcoin wallets to calculate their spendable balance so that new transactions can be verified thereby ensuring they're actually owned by the spender. The integrity and the chronological order of the block chain are enforced with cryptography.

Transactions - Private Keys
A transaction is a transfer of value between Bitcoin wallets that gets included in the block chain. Bitcoin wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet. The signature also prevents the transaction from being altered by anybody once it has been issued. All transactions are broadcast to the network and usually begin to be confirmed within 10-20 minutes, through a process called mining.

Processing - Mining
Mining is a distributed consensus system that is used to confirm pending transactions by including them in the block chain. It enforces a chronological order in the block chain, protects the neutrality of the network, and allows different computers to agree on the state of the system. To be confirmed, transactions must be packed in a block that fits very strict cryptographic rules that will be verified by the network. These rules prevent previous blocks from being modified because doing so would invalidate all the subsequent blocks. Mining also creates the equivalent of a competitive lottery that prevents any individual from easily adding new blocks consecutively to the block chain. In this way, no group or individuals can control what is included in the block chain or replace parts of the block chain to roll back their own spends. Nakamoto set a monetary policy based on artificial scarcity at bitcoin's inception that the total number of bitcoins could never exceed 21 million. New bitcoins are created roughly every ten minutes and the rate at which they are generated drops by half about every four years until all will be in circulation.

Bitcoin is Decentralized

  • Bitcoin does not have a central authority.
  • There is no central server; the bitcoin network is peer-to-peer.
  • There is no central storage; the bitcoin ledger is distributed.
  • The ledger is public; anybody can store it on their computer.
  • There is no single administrator; the ledger is maintained by a network of equally privileged miners.
  • Anybody can become a miner.
  • The additions to the ledger are maintained through competition. Until a new block is added to the ledger, it is not known which miner will create the block.
  • The issuance of bitcoins is decentralized. They are issued as a reward for the creation of a new block.
  • Anybody can create a new bitcoin address (a bitcoin counterpart of a bank account) without needing any approval.
  • Anybody can send a transaction to the network without needing any approval; the network merely confirms that the transaction is legitimate.

Privacy
Bitcoin is pseudonymous, meaning that funds are not tied to real-world entities but rather bitcoin addresses. Owners of bitcoin addresses are not explicitly identified, but all transactions on the blockchain are public. In addition, transactions can be linked to individuals and companies through "idioms of use" (e.g., transactions that spend coins from multiple inputs indicate that the inputs may have a common owner) and corroborating public transaction data with known information on owners of certain addresses. Additionally, bitcoin exchanges, where bitcoins are traded for traditional currencies, may be required by law to collect personal information. To heighten financial privacy, a new bitcoin address can be generated for each transaction.

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