• bitcoinBitcoin(BTC)$20,647.00-0.38%
    BITCOIN
    24H : -0.38%
    Volume : $17,684,648,452.00
    Marketcap : $394,052,794,222.00
  • ethereumEthereum(ETH)$1,178.95-0.69%
    ETHEREUM
    24H : -0.69%
    Volume : $12,920,526,227.00
    Marketcap : $143,185,174,135.00
  • tetherTether(USDT)$1.00-0.04%
    TETHER
    24H : -0.04%
    Volume : $47,357,841,856.00
    Marketcap : $66,846,573,034.00
  • usd-coinUSD Coin(USDC)$1.000.020%
    USD COIN
    24H : 0.020%
    Volume : $4,451,103,575.00
    Marketcap : $55,645,129,055.00
  • rippleXRP(XRP)$0.342-3.05%
    XRP
    24H : -3.05%
    Volume : $975,407,086.00
    Marketcap : $16,547,617,331.00
  • cardanoCardano(ADA)$0.479-1.19%
    CARDANO
    24H : -1.19%
    Volume : $717,453,414.00
    Marketcap : $16,213,795,445.00
  • dogecoinDogecoin(DOGE)$0.069-4.70%
    DOGECOIN
    24H : -4.70%
    Volume : $479,636,073.00
    Marketcap : $9,131,059,151.00
  • daiDai(DAI)$1.000.070%
    DAI
    24H : 0.070%
    Volume : $319,738,308.00
    Marketcap : $6,283,981,263.00
  • tronTRON(TRX)$0.066-2.29%
    TRON
    24H : -2.29%
    Volume : $730,020,678.00
    Marketcap : $6,129,000,601.00
  • leo-tokenLEO Token(LEO)$5.77-0.92%
    LEO TOKEN
    24H : -0.92%
    Volume : $2,267,727.00
    Marketcap : $5,395,018,996.00
  • litecoinLitecoin(LTC)$54.34-2.17%
    LITECOIN
    24H : -2.17%
    Volume : $402,697,535.00
    Marketcap : $3,835,550,709.00
  • crypto-com-chainCronos(CRO)$0.124-0.42%
    CRONOS
    24H : -0.42%
    Volume : $21,232,366.00
    Marketcap : $3,123,530,438.00
  • chainlinkChainlink(LINK)$6.591.58%
    CHAINLINK
    24H : 1.58%
    Volume : $741,743,740.00
    Marketcap : $3,075,905,590.00
  • okbOKB(OKB)$11.94-2.31%
    OKB
    24H : -2.31%
    Volume : $5,029,037.00
    Marketcap : $3,063,612,985.00
  • stellarStellar(XLM)$0.117-1.30%
    STELLAR
    24H : -1.30%
    Volume : $132,220,486.00
    Marketcap : $2,921,241,216.00
  • cosmosCosmos Hub(ATOM)$7.62-4.45%
    COSMOS HUB
    24H : -4.45%
    Volume : $320,048,306.00
    Marketcap : $2,233,457,311.00
  • algorandAlgorand(ALGO)$0.319-3.23%
    ALGORAND
    24H : -3.23%
    Volume : $82,830,276.00
    Marketcap : $2,200,369,776.00
  • ethereum-classicEthereum Classic(ETC)$16.01-3.16%
    ETHEREUM CLASSIC
    24H : -3.16%
    Volume : $196,797,363.00
    Marketcap : $2,168,856,666.00
  • moneroMonero(XMR)$118.33-2.97%
    MONERO
    24H : -2.97%
    Volume : $74,631,927.00
    Marketcap : $2,147,412,249.00
  • bitcoin-cashBitcoin Cash(BCH)$108.24-2.97%
    BITCOIN CASH
    24H : -2.97%
    Volume : $580,098,377.00
    Marketcap : $2,067,378,021.00
  • vechainVeChain(VET)$0.024-0.51%
    VECHAIN
    24H : -0.51%
    Volume : $137,637,523.00
    Marketcap : $1,768,451,355.00
  • tezosTezos(XTZ)$1.584.95%
    TEZOS
    24H : 4.95%
    Volume : $146,496,026.00
    Marketcap : $1,406,149,937.00
  • theta-tokenTheta Network(THETA)$1.30-1.13%
    THETA NETWORK
    24H : -1.13%
    Volume : $60,735,654.00
    Marketcap : $1,304,081,388.00
  • eosEOS(EOS)$0.969-1.49%
    EOS
    24H : -1.49%
    Volume : $193,650,418.00
    Marketcap : $968,507,093.00
  • makerMaker(MKR)$976.33-2.82%
    MAKER
    24H : -2.82%
    Volume : $96,389,790.00
    Marketcap : $880,974,211.00
  • paxos-standardPax Dollar(USDP)$1.000.040%
    PAX DOLLAR
    24H : 0.040%
    Volume : $35,501,144.00
    Marketcap : $873,970,255.00
  • huobi-tokenHuobi(HT)$5.29-0.27%
    HUOBI
    24H : -0.27%
    Volume : $11,712,148.00
    Marketcap : $816,825,269.00
  • iotaIOTA(MIOTA)$0.284-2.05%
    IOTA
    24H : -2.05%
    Volume : $14,790,777.00
    Marketcap : $790,497,525.00
  • zcashZcash(ZEC)$60.68-3.59%
    ZCASH
    24H : -3.59%
    Volume : $59,164,293.00
    Marketcap : $764,570,588.00
  • basic-attention-tokenBasic Attention(BAT)$0.382-0.81%
    BASIC ATTENTION
    24H : -0.81%
    Volume : $72,001,961.00
    Marketcap : $572,517,948.00
  • wavesWaves(WAVES)$5.69-2.69%
    WAVES
    24H : -2.69%
    Volume : $188,236,088.00
    Marketcap : $569,303,759.00
  • dashDash(DASH)$47.70-2.96%
    DASH
    24H : -2.96%
    Volume : $55,683,769.00
    Marketcap : $515,037,154.00
  • nemNEM(XEM)$0.042-0.62%
    NEM
    24H : -0.62%
    Volume : $7,983,706.00
    Marketcap : $373,449,094.00
  • decredDecred(DCR)$24.23-2.64%
    DECRED
    24H : -2.64%
    Volume : $796,089.00
    Marketcap : $343,191,181.00
  • qtumQtum(QTUM)$2.97-0.61%
    QTUM
    24H : -0.61%
    Volume : $55,046,818.00
    Marketcap : $309,482,574.00
  • bitcoin-goldBitcoin Gold(BTG)$16.88-2.63%
    BITCOIN GOLD
    24H : -2.63%
    Volume : $7,220,469.00
    Marketcap : $296,188,790.00
  • ravencoinRavencoin(RVN)$0.025-0.12%
    RAVENCOIN
    24H : -0.12%
    Volume : $10,933,329.00
    Marketcap : $286,765,730.00
  • 0x0x(ZRX)$0.3250.740%
    0X
    24H : 0.740%
    Volume : $35,022,667.00
    Marketcap : $275,814,687.00
  • omisegoOMG Network(OMG)$1.93-0.47%
    OMG NETWORK
    24H : -0.47%
    Volume : $59,408,732.00
    Marketcap : $270,704,806.00
  • iconICON(ICX)$0.2991.27%
    ICON
    24H : 1.27%
    Volume : $28,619,895.00
    Marketcap : $233,384,018.00
  • ontologyOntology(ONT)$0.242-0.62%
    ONTOLOGY
    24H : -0.62%
    Volume : $21,791,425.00
    Marketcap : $212,184,803.00
  • liskLisk(LSK)$1.192.35%
    LISK
    24H : 2.35%
    Volume : $90,398,901.00
    Marketcap : $174,296,507.00
  • augurAugur(REP)$8.58-1.62%
    AUGUR
    24H : -1.62%
    Volume : $13,916,938.00
    Marketcap : $64,820,965.00
  • bitcoin-diamondBitcoin Diamond(BCD)$0.1702.60%
    BITCOIN DIAMOND
    24H : 2.60%
    Volume : $209,593.00
    Marketcap : $31,932,941.00
  • bytomBytom(BTM)$0.012-4.71%
    BYTOM
    24H : -4.71%
    Volume : $1,494,771.00
    Marketcap : $20,729,934.00
  • monacoinMonaCoin(MONA)$0.5080.750%
    MONACOIN
    24H : 0.750%
    Volume : $105,424.00
    Marketcap : $0.00
Cryptotelegraph
  • bitcoin
    Bitcoin
    $20,647.00
  • ethereum
    Ethereum
    $1,178.95
  • tether
    Tether
    $1.00
  • usd-coin
    USD Coin
    $1.00
  • binancecoin
    BNB
    $234.86
    • News
      • Bitcoin News
      • Ethereum News
      • Crypto News
      • Crypto Technology
      • Analysis
      • Blockchain News
      • Industry News
      • NFTs
      • ICO News
      • Press Releases
    • Market Cap
    • Exchanges
    • ICOs
    • Videos
      • Bitcoin Videos
      • Ethereum Videos
      • Altcoin Videos
      • Blockchain Videos
      • ICO Videos
    • Submit Press Release
      • Read Press Releases
    • Contact Us
    No Result
    View All Result
    Cryptotelegraph.com
    No Result
    View All Result
    Home Videos Blockchain Videos

    Blockchain Technology Explained: What is a Blockchain?

    PassKit by PassKit
    March 12, 2017
    in Blockchain Videos
    Reading Time: 3 mins read
    14.6k 1.1k
    0
    Blockchain Technology Explained: What is a Blockchain?
    2.7k
    SHARES
    68.3k
    VIEWS
    Share on FacebookShare on Twitter



    This video https://youtu.be/eXJHPDs4M3Y provides an easy to understand introduction to Blockchain Technology.

    Please leave comments and questions below the video.

    Related articles

    ¿Cómo de disruptivo será el blockchain? – #IMMUNEDialogues

    ¿Cómo de disruptivo será el blockchain? – #IMMUNEDialogues

    March 17, 2020
    EXUP-The Gateway to Blockchain Financial Derivatives

    EXUP-The Gateway to Blockchain Financial Derivatives

    March 17, 2020

    Here is the full transcript for your convenience:

    What is a Blockchain?
    A Blockchain is a distributed database that multiple parties share and everyone can trust. A Blockchain network provides a mutually trusted, transparent way of sharing and transacting. Each party participating in a Blockchain network maintains their own copy of the database.

    What makes Blockchain secure?
    Transactions on the database are atomic (this means that they’re processed one at a time). The next transaction will be a different write or a read, but only after the preceding transaction has completed (or failed). Each write to the database is considered a ‘block’. Each new block contains a cryptographic hash (a unique fingerprint) of the previous block, creating a chain that can always be validated by checking the hashes back to the original root block.

    Before a block can be committed, all participants are required to validate the transaction and provide consensus that the block can be added to the chain. This effectively makes it impossible to add a record unless all parties participating in the blockchain agree the record is valid.

    Because all records are chained together by their hash value, once committed to the chain, all records are immutable (they cannot be changed). It is impossible to alter a previous record without altering every party’s copy of the chain. If one node is compromised, then it can no longer participate in the chain until it regenerates the true chain from the other participants.

    How does Blockchain prevent double spending?
    A major challenge of digitising assets is the potential to spend/redeem/use an asset multiple times. Because digital assets are much easier to forge than many traditional assets (such as currency, tickets, physical coupons, etc.), a secure system is required to ensure that an asset is only used once.

    With Blockchain, every time an asset is used or consumed, the owner of the asset signs the transfer with a private cryptographic key. This key is unique to the owner and is extremely difficult to forge. In order to initiate the transaction, the transferrer requires both the asset and their private key. The Blockchain will check both the validity of the key, and ownership of the asset. Therefore, even if the asset is cloned, it cannot be used without the private key.

    Once the transaction has been committed to the chain, the owner of the asset will have changed. This means, each node that receives a second transaction requesting transfer of ownership (or redemption, etc.) will see that there was a previous transaction that already transferred the asset and will reject that transaction. This prevents a second transfer block from being added to the chain.

    How does Blockchain ensure privacy?
    Personal data and identifiers are not required to be stored in the chain. Such data is stored as a hash value which provides both anonymity and security. The user may provide data such as their name, telephone number, email address, Facebook account id, unique user name, password etc. (in reality a combination of these values is used) to determine their identity. This data is hashed to provide a unique token that can only be recreated by providing the original values, and only this hash is stored to identify the party in the chain.

    Since it is impossible to obtain the input values by reverse engineering a hash value, the user is practically anonymous to all parties within the chain. But, they can be validated whenever required by providing the original values used to create the hash.

    How is PassKit utilising Blockchain?
    PassKit provides a private blockchain service to parties that wish to issue, record or redeem anything of value. This can be anything from loyalty points, punch card programmes, event tickets, boarding passes, to government identification, insurance policies or claim histories, tax records and educational transcripts.

    We utilise existing mobile wallet technology as a gateway for transacting, validating or querying our secure, private Blockchain networks. We ensure that mobile wallet content can be validated and trusted in a frictionless, realtime manner, by both consumers and by the businesses and institutions with whom they transact.

    source

    Tags: blockchainBlockchain Technologydistributed ledger
    Share1094Tweet684
    PassKit

    PassKit

    Related Posts

    ¿Cómo de disruptivo será el blockchain? – #IMMUNEDialogues

    ¿Cómo de disruptivo será el blockchain? – #IMMUNEDialogues

    by IMMUNE Technology Institute
    March 17, 2020
    0

    Hablamos con Montse Guardia, directora general de Alastria, encargados de impulsar el uso de blockchain y Berta Fernández, Executive IT...

    EXUP-The Gateway to Blockchain Financial Derivatives

    EXUP-The Gateway to Blockchain Financial Derivatives

    by ChainUP
    March 17, 2020
    0

    EXUP, as a sub-brand of ChainUP, is a professional technology provider for Blockchain financial derivatives, aiming is to provide services...

    GOLDEN RULE's for bear market – CRYPTOVEL

    GOLDEN RULE's for bear market – CRYPTOVEL

    by Crypto Vel
    March 17, 2020
    0

    Hello Guy's, I Am PRANJAL SHARMA the OWNER & HOST OF CRYPTOVEL Youtube Channel FOR BUY TECHNICAL ANALYSIS COURSE HERE...

    Toyota Reveals Blockchain Lab After 11 Months of Research

    Toyota Reveals Blockchain Lab After 11 Months of Research

    by Cointelegraph News
    March 17, 2020
    0

    Please change your life!!! Click on the link! http://[email protected]/AyAb Can you afford this thing?: http://[email protected]/orwTH Software at the best prices:...

    Blockchain 101: Infinity Blockchain Ventures Explains

    Blockchain 101: Infinity Blockchain Ventures Explains

    by Asia Blockchain Review
    March 17, 2020
    0

    ABR recently had the golden opportunity to meet the Regional Head, Managing Director of Infinity Blockchain Ventures (IBV), Cris D....

    Load More

    Discussion about this post

    Partners

    Crypto Prices

    bitcoin Bitcoin
    $20,647.00
    $20,647.00
    EUR: €19,599.97
    GBP: £16,924.94
    7D Chart-0.38%
    ethereum Ethereum
    $1,178.95
    $1,178.95
    EUR: €1,119.16
    GBP: £966.42
    7D Chart-0.69%
    tether Tether
    $1.00
    $1.00
    EUR: €0.950
    GBP: £0.821
    7D Chart-0.04%
    usd-coin USD Coin
    $1.00
    $1.00
    EUR: €0.950
    GBP: £0.821
    7D Chart0.020%
    binancecoin BNB
    $234.86
    $234.86
    EUR: €222.95
    GBP: £192.52
    7D Chart0.480%
    ripple XRP
    $0.342
    $0.342
    EUR: €0.325
    GBP: £0.281
    7D Chart-3.05%
    cardano Cardano
    $0.479
    $0.479
    EUR: €0.455
    GBP: £0.393
    7D Chart-1.19%
    polkadot Polkadot
    $7.61
    $7.61
    EUR: €7.22
    GBP: £6.24
    7D Chart-2.85%
    wrapped-bitcoin Wrapped Bitcoin
    $20,638.00
    $20,638.00
    EUR: €19,591.43
    GBP: £16,917.57
    7D Chart-0.49%
    litecoin Litecoin
    $54.34
    $54.34
    EUR: €51.58
    GBP: £44.54
    7D Chart-2.17%
    chainlink Chainlink
    $6.59
    $6.59
    EUR: €6.26
    GBP: £5.40
    7D Chart1.58%
    stellar Stellar
    $0.117
    $0.117
    EUR: €0.111
    GBP: £0.096
    7D Chart-1.30%
    uniswap Uniswap
    $5.14
    $5.14
    EUR: €4.88
    GBP: £4.21
    7D Chart-4.34%
    monero Monero
    $118.33
    $118.33
    EUR: €112.33
    GBP: £97.00
    7D Chart-2.97%
    bitcoin-cash Bitcoin Cash
    $108.24
    $108.24
    EUR: €102.75
    GBP: £88.73
    7D Chart-2.97%
    tezos Tezos
    $1.58
    $1.58
    EUR: €1.50
    GBP: £1.30
    7D Chart4.95%
    bitcoin-cash-sv Bitcoin SV
    $58.72
    $58.72
    EUR: €55.74
    GBP: £48.13
    7D Chart-1.87%
    eos EOS
    $0.969
    $0.969
    EUR: €0.920
    GBP: £0.795
    7D Chart-1.49%
    aave Aave
    $64.30
    $64.30
    EUR: €61.04
    GBP: £52.71
    7D Chart1.05%
    havven Synthetix Network
    $2.34
    $2.34
    EUR: €2.22
    GBP: £1.92
    7D Chart-4.05%
    • Trending
    • Comments
    • Latest
    Blockchain | Hack Script 2020 GENERATES Unlimited 100% WORKING bitcoin hacked

    Blockchain | Hack Script 2020 GENERATES Unlimited 100% WORKING bitcoin hacked

    March 14, 2020
    Blockchain unconfirmed transaction hack 100% Working! New proof!

    Blockchain unconfirmed transaction hack 100% Working! New proof!

    March 13, 2020
    Blockchain Hack Script 2020 GENERATES Unlimited Bitcoin 100% WORKING bitcoin hacked

    Blockchain Hack Script 2020 GENERATES Unlimited Bitcoin 100% WORKING bitcoin hacked

    February 11, 2020
    🔥 Forsage 🚀 (Fast and Furious) – Fully Decentralized Matrix program on Ethereum Smart Contract 🔥

    🔥 Forsage 🚀 (Fast and Furious) – Fully Decentralized Matrix program on Ethereum Smart Contract 🔥

    March 31, 2020
    Ripple XRP Token

    Ripple and XRP – The Convoluted Truth Behind XRP’s Creation

    0
    Bitcoin cash hard fork. BitcoinCash Hard fork (BCH Hard fork)

    Bitcoin Cash ‘hard fork’ What you need to know about it

    0
    Crytotelegraph - Crypto News & Reviews - Bitcoin & Altcoins

    Bitcoin price news: 10 year forecast shows bitcoin ‘WON’T DIE’ Latest BTC prediction

    0
    BAKKT Futures: BAKKT Warehouse & Bitcoin Exchange

    Will Bakkt Send Bitcoin’s price skyrocketing?

    0
    TA: Bitcoin Dips Could Be Limited, Why 100 SMA Is The Key

    TA: Bitcoin Dips Could Be Limited, Why 100 SMA Is The Key

    June 28, 2022
    Crypto Liquidations Settle As Bitcoin Recovers Above $21,000

    Crypto Liquidations Settle As Bitcoin Recovers Above $21,000

    June 28, 2022
    First In History: Bitcoin Mayer Multiple Records Lower Value Than Last Cycle’s Low

    First In History: Bitcoin Mayer Multiple Records Lower Value Than Last Cycle’s Low

    June 28, 2022
    Bitcoin Monthly Tags Lower Bollinger Band, Tool’s Creator Hints At Bottom

    Bitcoin Monthly Tags Lower Bollinger Band, Tool’s Creator Hints At Bottom

    June 28, 2022

    Cryptotelegraph.com




    The Cryptotelegraph is a Crypto News Magazine ‘Startup’ that hunts high and low to compile the very latest crypto news and reviews from around the web, whilst at the same time producing thought provoking articles and interpretations surrounding the cryptocurrency market today!


    Read More





    Disclaimer

    Information found on Cryptotelegraph is those of referring websites (or) writers quoted. It does not represent the opinions of Cryptotelegraph on whether or not to buy, trade, sell or hold any investments. You are advised to conduct your own research before making any investment decisions. Use all provided information at your own risk. Full disclaimer.

    Crypto News

    TA: Bitcoin Dips Could Be Limited, Why 100 SMA Is The Key

    Crypto Liquidations Settle As Bitcoin Recovers Above $21,000

    First In History: Bitcoin Mayer Multiple Records Lower Value Than Last Cycle’s Low

    Bitcoin Monthly Tags Lower Bollinger Band, Tool’s Creator Hints At Bottom

    TA: Bitcoin Dips Further, Why BTC Could Revisit $20K

    Axie Infinity Revenue Continues To Collapse – Here’s Why

    Donations Welcome




    Bitcoin Address : 3AhxNswMkD5tjJJ544NRCwWhCDXHJ5GTzq

    Ethereum Address : 0x9627FB741C19e1a70E7006F2B0D0c26d14AA1816

    Bitcoin Cash Address : qq93an6n9unnu496vpcx684zekkmn4yk6g79kllf7d

    Litecoin Address : MKVphBBJkBbjSh4D6aFLds9XHE1rnS9iHW





    © Copyrights 2017 - 2021 Cryptotelegraph.com. All Rights Reserved.

    Contact    About    Privacy & Cookie Policy

    No Result
    View All Result
    • News
      • Bitcoin News
      • Ethereum News
      • Crypto News
      • Crypto Technology
      • Analysis
      • Blockchain News
      • Industry News
      • NFTs
      • ICO News
      • Press Releases
    • Market Cap
    • Exchanges
    • ICOs
    • Videos
      • Bitcoin Videos
      • Ethereum Videos
      • Altcoin Videos
      • Blockchain Videos
      • ICO Videos
    • Submit Press Release
      • Read Press Releases
    • Contact Us

    © Cryptotelegraph.com

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.