【學習筆記，不為投資參考】
Po.et是一個共用、開放和通用的帳本，旨在記錄數位創意資產的中繼資料和所持有者的 資訊。Po.et是存在性證明(Proof of Existence)的延續和拓展，是區塊鏈上的第一個非金融 領域的應用。通過在比特幣區塊鏈上打造一個開放的平臺，Po.et的目標是打造一個企業級的、全球可驗證的數位媒體資產記錄平臺。通過使用共用的、標準化的以及可擴展的中繼資料，Po.et 將打造出一個支援智慧合約、支援可交互多媒體應用的框架。這個記錄將是一個使用共用、標準和可擴展的中繼資料格式構建智慧、可互動操作的媒體應用程式框架。
與區塊鏈技術創建一個不可變的分散式帳本給金融行業帶來的革命性變化類似，Po.et將通過為創造性的作品創造一種不可變的、分散式帳本，從而改變出版行業。這可能是一個集合集中心化及去中心化的媒體應用平臺。
目標概述
Po.et利用區塊鏈技術，確保資產、分析和資料存在的完整性；為新的金融交流、協作和共用奠定基礎。同樣,Po.et也會使價值和信任在數字媒體行業的出版商、編輯和內容創作者之間自由流通。
核心目標
Po.et的核心目標是創建一個平臺，簡化數字資產的發佈、授權和認證過程。簡化出版過程需要解決文檔的完整性、許可、套利、分析、整合以及數字資產歸屬等問題。同時，Po.et的目標是創建一個基於區塊鏈的平臺，增加智慧合同功能和應用程式，以促進數位創意作品的發行。
存在性證明
1. 歷史 存在性證明是區塊鏈上最早的一類的非金融應用，由Manuel Araoz 在2013年提出。 存在性證明這個區塊鏈的應用支援使用者在匿名情況下安全地儲存一個檔的加密摘要，同 時摘要會和用戶提交這個檔的時間點相關聯。這是第一個讓用戶以完全去信任（不許第 三方）方式公開證明他們擁有一個檔或資料，且不用披露資料本身或他們的身份。存在 性證明利用區塊鏈時間戳記，在不需要中心化的時間戳記認證機構的情況下，實現了將檔的 雜湊值永久地存儲在不可篡改的資料機制內。
2. 用途 存在性證明的三個基本用途包括：在不披露原始資料的情況下證明資料所有權，提供 檔時間戳記、驗證檔完整性。
在所有權發生爭議的時候，證明資料所有權是非常重要的， 因為它可以從加密學的角度證明產生某段雜湊的來源資料所有權。這個功能和檔時間戳記功 能是相連的，因為時間戳記證明了特定的資料存在於某一特定的時間點。使用這兩個功能， 用戶可以證明從某一特定時間點對某一資料的擁有了所有權，這也為版權和專利權提供強 有力的證明。第三，存在性證明促進了檔完整性的驗證，因為檔的任何修改都會導致 完全不同的雜湊值，並警示系統這裡有改動。如果檔沒有被改動，它會生成一個和存儲 在比特幣區塊鏈上的完全相同的雜湊值來提供檔沒有被修改的證明。
The Po.et Roadmap
Po.et is a shared, universal ledger designed to track ownership and attribution for the world’s digital media assets.
1. Pre-Dawn
Bitcoin Whitepaper November 2008 Satoshi releases Bitcoin and, amidst the flurry of excitment, many see the platform as having potential beyond financial applications. The first message is inscribed into the "genesis block."
Proof f Existence 1.0 May 2013 Manuel Araoz creates one of the first non-financial blockchain applications: a website where users can upload a document and hash it into the Bitcoin blockchain.
2. The Genesis
Original Idea for Po.et October 2016 A team at Bitcoin Magazine, the birthplace of Ethereum, brainstorms a platform to timestamp and tokenize published articles.
Joining BTC Labs November 2016 Po.et joins BTC Labs, an incubator for blockchain technology projects run by BTC Inc.
Initial Kickoff December 2016 The Po.et team meets in the U.S. to outline the initial architecture of the network.
Seed Funding December 2016 The Po.et team travels to Shanghai to meet with investors and raise seed capital to pave the way for "The Future of Media."
Development Team Grows January 2017 Lautaro Dragan and Álvaro Crespo join the Po.et team to develop the Alpha release.
Colombia February 2017 Development team spends a month together in Colombia to kick off the Alpha release development cycle.
LTB Partnership March 2017 BTC Media acquires Let's Talk Bitcoin and converts existing LTB token balances to Po.et tokens.
The Po.et Authenticator App Enters Beta March 2017 The Po.et Authenticator App enters the App Store to provide secure identity solutions.
Po.et Foundation Established April 2017 The Po.et Foundation is established in Singapore.
Blockchain Proofs Recognized April 2017 The State of Arizona recognizes that electronic signatures using blockchain technology and smart contracts are valid, legal contracts and records.
Po.et Officially Revealed May 2017 The Po.et publisher tool is unveiled at the Maven Media Summit in Seattle, Washington.
Jeff Garzik Joins Advisory Board May 2017 A Bitcoin Core developer, Garzik comes on board as technology advisor to Po.et.
Konstantin Richter Joins Po.et May 2017 A veteran of the media industry, Richter brings many years of experience to a business development role, engaging publishers for Po.et.
Jaxx Announced as Custodian Partner June 2017 Jaxx, a leading digital asset wallet, signs on to become a wallet provider for the Po.et token.
Po.et Raises $1M June 2017 Po.et raises $1 million in funding from angel investors and strategic partners.
3. The Rosetta Era
Po.et Testnet Goes Live June 2017 Po.et launches a public testnet with initial alpha partner Bitcoin Magazine.
First Publishers Integrate Po.et July 2017 Coin Speaker, the Merkle and other publishers join Po.et as alpha partners.
The Po.et Token Sale August 2017 Po.et successfully raises $10,000,000 in tokens during the token sale.
Version Control and Edit Logs October 2017 Publishers and readers will be able to view different versions of assets through time, each with an immutable timestamp.
Standard Metadata Schema September 2017 Using existing Schema.org data, Po.et will support a standardized metadata format for digital assets.
(2018 January, checked here ! ) 【繼續 follow ...】
Frost App Release Q1 2018 Po.et releases the official wordpress integration using an open API.
4. The Guttenburg Era
1. Licensing Marketplace April 2018 Po.et will support custom content licenses, in addition to Creative Commons and other industry standards.
2. Revenue Sharing July 2018 Multiple owners for a digital asset can share in the profits and licensing revenue from that asset.
3. Payment Channels September 2018 Payment channel support will enable frictionless and instant micropayments.
4. Asset Marketplace October 2018 The Po.et content marketplace launches with 20+ integrated publishers.
5. Immutable Portfolio January 2019T his feature will enable content creators to maintain an immutable record of digital assets across different publications.
6. E-book Registry February 2019 Po.et's standard e-book metadata format will provide a less costly, open system for e-book publication similar to today's ISBN codes.
5. The Alexandria Era
1. Image and Video Support July 2019 While Po.et only supported written content initially, the platform now supports adding graphics to the network.
2. Open, Decentralized Marketplace August 2019 Po.et will open the digital media asset marketplace to all content creators, publishers, editors and other interested parties.
3. SEO Liquidity October 2019 Using Po.et, publishers have a transparent price discovery tool to effectively "liquidate" their SEO value for some time interval.
4. Po.et App Platform Launches January 2020 Developers are able to build and deploy smart contracts and other DApps that interact with the Po.et network.
5. Audio Support February 2020 Users can now register sound clips, podcasts and music to the Po.et platform.
6. Reputation System April 2020 Po.et will integrate a reputation and dispute resolution system to combat spam or fraud on the network.
【出處】
