#自己條key自己keep

what is a public key (Burst Address)?

問: 各款加密貨幣錢包Crypto wallets有咩分別?

答: 如果是原生在區塊鏈既wallet, wallet 只係同條鏈既”門口”, 但如果是非原生在區塊鏈上既wallet, 你own既只係一間格仔鋪, 租戶走佬你就死, 最重要既係數碼資產唔係屬於你名下既 …咁點簡錢包? 一句字: #自己條key自己keep

中心化既wallet(即幣存在間APP公司手上)除左有當地證監睇著個幾隻(e.g. Blockchain.com; CoinBase; WireX) ,否則成日被Hack咩都無晒, 或可以話走佬就老佬. 最好用原生既去中心化decentralised wallet, 幣存在鏈上, 鏈在幣在,無人千到你,除左你自已啦 (e.g. Atomic Wallet)

問: 如直接使用 Crypto 付款 (例如 0.1 BTC) ,商家經 POS 收款即時變成美元進入商家的帳戶。 這樣,那個 0.1 BTC 會去了那裡?

答: 通常wallet入面係駁左去exchange做買賣佢收左你既 BTC, 又或者佢直頭同你兌換埋, 大部份可以fiat-crypto 既wallet 都係中心化, 並唔係真正區塊鏈wallet, 姐係你連自己 private key都無既就要小心啦.

問: 成日見有人推咩咩幣 ?仲有airdrop又介紹朋友有幣獎, 其實信得過嗎?

好多咩咩幣或者ICO項目幣其實是建立在其他區塊鏈上的 “代幣Token”, 而非”原生幣Coin”,目前仲未有係交易所上市, 也可能無任何開源編碼, 技術的進步和應用案例,所以風險較大, 可能只是種營銷空投或傳銷的套路。如果連大指標網Coinmarketcap.com都無記錄既就盡量唔好玩啦.

問: 請問現時有那些方法去解決 Double-spending 的問題?

答: double spending約有三種: 1) 51%attack (算力成本太大要有經濟誘因發動), 2) race attack(兩個交易, 一個假野轉比自己, 3)finney attack(唔公布pre-mine左既block就去交易). 2)及 3) 都需要accept unconfirmed transaction(tx), 所以應用上,唔接受unconfirmed tx 就可盡量避免.

問:如同時要令加密幣流通,例如用作購物交易。每秒要像 VISA 卡處理過萬個 交易的話。使用 Lightning 等技術會否有 Double-spending 的問題?

答: Lightning Network 係走向 off-chain 既擴容方法之一, (例子)其中一個鏈下交易完, 之後再記錄返上區塊鏈, 可能會有以上問題, 但要事後先發覺, 用起小額支付係可似, 如果要買層樓, 都係坐定定好了,

不過引申另外既問題係, 加密貨幣存在匿名交易慨念,即係我知道 A呢個人做交易, 但我唔知道A呢個係係邊個, 但如果中心化左個wallet既擁有者資料, 咁區塊鏈(加密幣)價值將會失去…

iHashing

Automate Biz,Make Growth,Enjoy Freedom by Education,Adoption & Development of Blockchain Technology

andylamgot

Written by

Innopreneur, Developer, growthHacker, FChFP, Father

iHashing

iHashing

Enlighten people with blockchain values - We provide blockchain solutions for helping SMBs to automate business, make growth & enjoy freedom, by education, adoption & development of blockchain technology.

andylamgot

Written by

Innopreneur, Developer, growthHacker, FChFP, Father

iHashing

iHashing

Enlighten people with blockchain values - We provide blockchain solutions for helping SMBs to automate business, make growth & enjoy freedom, by education, adoption & development of blockchain technology.

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