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姚前:区块链技术是数字时代的基石(含视频)-宝莫股份股票

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视频加载中,请稍候... 观点短视频:区块链技术是数字时代的基石 play 观点短视频:区块链技术是数字时代的基石 向前 向后 /*自动播放1*/ var AUTOPLAY = 1; /*连播1*/ var CONTIPLAY = 1; /*处理自动播放选项和cookie*/ (function() { var Tool = CommonTool; var chk = Tool.byId("J_Video_Autoplay"); var ua = navigator.userAgent.toLowerCase(); var isIOS = /\((iPhone|iPad|iPod)/i.test(ua); if (isIOS) { console.log(chk.parentNode.style.display); chk.parentNode.style.display = "none"; return; } chk.parentNode.style.display = ""; var clickCookie = function() { Tool.bindEvent(chk, "change", 宝莫股份股票 function() { var chked = chk.checked; Tool.writeCookie("ArtiVAuto", (chked ? 1 : 0), 24 * 365 * 10, "/", ".sina.com.cn"); }); } var byCookie = function() { var coo = Tool.readCookie("ArtiVAuto"); if (coo) { if (parseInt(coo) == 0) { chk.checked = false; AUTOPLAY = 0; } } }; clickCookie(); byCookie(); })(); /*获取第一个视频vid*/ var firstItem = CommonTool.byClass("J_Play_Item", "J_Play_List")[0]; var fInfo = firstItem.getAttribute("play-data").split("-"); var fVid = fInfo[0]; var fPid = fInfo[1]; var sinaBokePlayerConfig_o = { container: "J_Article_Player", //Div容器的id width: 525, height: 430, playerWidth: 525, //宽 playerHeight: 430, //高 autoLoad: 1, //自动加载 autoPlay: AUTOPLAY, //自动播放 as: 0, //广告 pid: fPid, tjAD: 0, //显示擎天柱广告 tj: 0, //片尾推荐 continuePlayer: 1, //连续播放 casualPlay: 1, //任意拖动视频 head: 0, //播放片头动画 logo: 0, //显示logo share: 0, thumbUrl: "" }; (function() { var toggle = function(id, hide) { var e = CommonTool.byId(id); var par = e.parentNode; if (hide) { CommonTool.addClass(par, e.className + "_disabled"); } else { CommonTool.removeClass(par, e.className + "_disabled"); } } var scroll = new ScrollPic(); scroll.scrollContId = "J_Play_List"; //内容容器ID scroll.arrLeftId = "J_Player_Prev"; //左箭头ID scroll.arrRightId = "J_Player_Next"; //右箭头ID scroll.listEvent = "onclick"; //切换事件 scroll.frameWidth = 532; //显示框宽度 **显示框宽度必须是翻页宽度的倍数 scroll.pageWidth = 133 * 3; //翻页宽度 scroll.upright = false; //垂直滚动 scroll.speed = 10; //移动速度(单位毫秒,越小越快) scroll.space = 15; //每次移动像素(单位px,越大越快) scroll.autoPlay = false; //自动播放 scroll.autoPlayTime = 5; //自动播放间隔时间(秒) scroll.circularly = false; scroll._move = scroll.move; scroll.move = function(num, quick) { scroll._move(num, quick); toggle(scroll.arrRightId, scroll.eof); toggle(scroll.arrLeftId, scroll.bof); }; scroll.initialize(); //初始化 toggle(scroll.arrLeftId, scroll.bof); })(); var autoPlayCheck = $("#J_Video_Autoplay")[0].checked; var autoPlayFlv = 0; var autoPlayH5 = false; if(autoPlayCheck){ autoPlayFlv = 1; var autoPlayH5 = true; } var flashConfig = { url: "", // flash播放器地址, container : "J_Article_Player", id: "myMovie", width: 525, height: 430, params : { allowNetworking : "all", allowScriptAccess : "always", wmode : "opaque", allowFullScreen : "true", quality : "high" }, attributes: {}, flashvars: { autoPlay: autoPlayFlv, //是否自动播放 loop: 0, autoLoad: 1, thumbUrl: "", tj: 0, as: 0 }, h5attr: { autoPlay: autoPlayH5, //是否自动播放 controls: true, //是否显示控制条 loop: false, poster: "", //视频加载前欲加载的图片地址,即播放器一开始显示的截图 preload: "auto" } }; var videoList = [ { video_id: 346673430, pid:1, url: "https://video.sina.com.cn/p/finance/2020-08-06/detail-iivhvpwx9512055.d.html", title:"观点短视频:区块链技术是数字时代的基石"//, //swfOutsideUrl:"http://you.video.sina.com.cn/api/sinawebApi/outplayrefer.php/video_id=346673430/s.swf" }, ] (function($){ var Play = { init: function(fl宝莫股份股票ashConfig, videoList){ this.flashConfig = flashConfig; this.videoList = videoList; this.playVideo = playVideo; this.prev = this.current = 0; this.length = this.videoList.length; this.contNode = $("#J_Video_Autoplay"); this.titleNode = $("#J_Video_Source"); this.playListNode = $("#J_Play_List .J_Play_Item"); if(videoList.length!==1){ //显示小图 CommonTool.byId("J_Play_List_Wrap").style.display=""; } if(videoList.length<5){ CommonTool.byId("J_Player_Prev").style.display="none"; CommonTool.byId("J_Player_Next").style.display="none"; } this.initPlayer(); this.bind(); }, bind: function(){ var _this = this; $("#J_Play_List").on("click", ".J_Play_Item a", function(e){ e.preventDefault(); _this.playCurrent($(this)); }); }, initPlayer: function(){ var _this = this; this.player = this.playVideo(this.flashConfig); this.player.init(this.videoList[this.prev]); this.player.on("playCompleted", function(){ _this.playNext(); }); this.playListNode.eq(0).addClass("selected"); this.titleNode.html(this.videoList[0].title); }, playCurrent: function($this){ this.prev = this.current; this.current = $this.parents(".J_Play_Item").index(); this.play(this.prev, this.current); }, playNext: function(){ if(!this.contNode[0].checked){ return; } this.prev = this.current; if(this.current >= this.length - 1){ return; } this.current++; this.play(this.prev, this.current); }, play: function(prev, current){ this.player.playVideo(this.videoList[current]); this.titleNode.html(this.videoList[current].title); this.playListNode.eq(prev).removeClass("selected"); this.playListNode.eq(current).addClass("selected"); } } Play.init(flashConfig, videoList); })(jQuery);

  直播回顾|高端对话《寻找区块链力量》重磅上线:姚前、井贤栋领衔  

  把脉区块链发展,坐看数字经济云起,由蚂蚁链、罗汉堂、新浪财经联合出品的《寻找区块链力量》系列节目自8月6日起,每周四下午2点在新浪财经独家首播!本期节目将由中国证监会科技监管局局长姚前、蚂蚁集团董事长井贤栋共话区块链如何赋能信任。

  姚前:区块链能够让人们在互不信任、没有中间人背书的情况下互相进行交易。一直以来,“信任问题”都是困扰着人类社会协同发展的一个至关重要的问题。传统社会的信任机制靠的是什么呢?

  在纸媒时代,我们相信一纸契约,立字为据,如果不能昭告天下,那得就有见证人,同时按上手印,如果有公章,那就更有公信力。

  区块链技术就是数字时代解决上述一系列问题的综合性数字技术的统称。比如用对端的公钥加密,用本端的私钥签名,可以解决数据的保密问题、按手印的问题、确定交易对手方的问题;用哈希算法辅之以时间戳生成的序列号可以解决数据的唯一性问题,防止“双花”;用共识算法可以解决在没有可信中间人的情况下,一人记录数据、多人监督复核、不能随意造假的问题。

  从这个角度来说,区块链技术就是管理数字凭证的可信技术,是数字时代的“信任机器”:利用加密数据结构来验证与存储数据、利用分布式共识算法来新增和更新数据、利用运行其上的代码,即智能合约,来保证业务逻辑的自动强制执行的一种全新的多中心化可信基础架构与分布式计算范式。