今後の発展：IoTとの連携 年初に発表されたIBMのwhite paperでは、セキュリテ ィの観点からblockchainがIoTの発展に最も必要なコン ポーネントの一つとなると発言している。 source: IBM
how bitcoin works bitcoin is working based on the technology called Blockchain blockchain is brieﬂy consist of following concepts; •Peer to Peer(decentralized) network •proof of work by all nodes which consists the computing network Peer to Peer(decentralized) network proof of work
generalize bitcoin protocol stack in bitcoin protocol, it only records the transaction of transferring a right of bitcoin. this transaction is distributed publicly and veriﬁed by all nodes joined. IOT, anything can be recorded in the decentralized protocol based on blockchain technology and thus it s hard to be hacked unless hacker has more computing power than the network the hacker try to crack. BitTorrent(ﬁl e sharing) Telehash(me bitcoin protocol ssaging/ VoIP) Ethereum(s mart contract)
Marketplace: OpenBazaar company: Open Bazzar is a project and has no company form investment: N/A investor: N/A location: N/A URS: https://openbazaar.org/ overview: •OpenBazaar is a new way to trade online. By running a program on your computer, you can connect directly to other users in the OpenBazaar network and trade with them. This network isn't controlled by a company, it's a decentralized network that isn't run by any organization at all. This means there are no mandatory fees to pay, and that your trade is censorship-resistant.
sns: twister company: investment: N/A investor: N/A location: Brazil URS: http://twister.net.co/ Business: •twister is Twitter in P2P/ decentralized network. •it s anonymous(if you choose) and secure, no trackable social network.
messaging bitmessage •bitmessage is messaging service based on Blockchain architecture. •the message is delivered directly to the opponent without going through any mail server. (meaning there s no vulnerability of data leaking, spooﬁng, etc) •currently client software is licensed by MIT
storage service: Storj drive share company: storj, Inc. investment: N/A investor: N/A location: N/A URS: http://storj.io Business: metadisk •their servies consists of 2 products, drive share and metadisk •driveshare oﬀers users to earn money(bitcoin) by providing unused harddrives. •metadisk oﬀers storage space. the data is shredded and distributed all nodes joined the service with highly encrypted, small piece of data. only owner of data can read/access the data with private key