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意大利研究者报告:OP_RETURN是区块链可扩展性的克星
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Topic: 意大利研究者报告:OP_RETURN是区块链可扩展性的克星 (Read 240 times)
nasiloter
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意大利研究者报告:OP_RETURN是区块链可扩展性的克星
February 08, 2017, 10:08:08 AM
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几位意大利学者近期发布了一篇研究报告,并且对比特币区块链的非货币化应用提出了警告。
为比特币网络带来‘副作用’
该篇报告的作者是来自意大利卡利亚里大学的两位学者Massimo Bartoletti和Livio Pompianu。除了比特币的基础功能——价值转移之外,他们在报告中分析了其它相关的多种用例。
这篇报告名为《比特币OP_RETURN元数据分析》(币文库全文下载),主要研究了OP_RETURN元数据功能的应用。OP_RETURN于2014年正式推出,能够实现数据在区块链中的广播和记录,省略了计算的步骤,因此达到了节省时间和算力的目的。
自此之后,很多项目都开始意识到这一功能的透明性和不可更改性,将其用于存储区块链中的信息以及研发去中心化的app。
然而,OP_RETURN的应用也遭到了不少比特币社区成员的反对,并且成为了比特币扩容辩论的众多槽点之一。
研究报告中提到:
引起比特币社区争论的其中一点就在于通过OP_RETURN加载数据是否会对比特币网络性能产生不良影响,是否会违背这一数字货币的发展初衷。
创新造成了比特币网络的损失?
由于OP_RETURN自带的透明性、不可更改性以及工作量证明(PoW)机制带来的安全性,很多项目都将这一功能用于在区块链中研发去中心化的app。
虽然目前每笔交易的OP_RETURN元数据大小限制在83字节,但这仍改变不了数据被分配到交易中的事实。当前,因OP_RETURN产出的数据在区块链中占到了0.03%,相当于区块链中所有交易数据总和的0.92%。考虑到OP_RETURN功能在2014年才刚刚推出,上述数据已经十分惊人了。
报告继续说道,自从2015年3月起,OP_RETURN的使用率不断提高,而这种行为很可能给比特币网络带来“不可估量的后果”。
如果这种趋势继续下去,未来比特币协议的发展将会受到影响。
元数据的流行
目前又不少主流项目采用元数据功能在比特币区块链中进行资产的发行和转移活动,比如说合约币(CounterParty)和Omnilayer,最终能够达到证明特定的商品、资产、股票等所有权的目的。已经在比特币区块链中成功发行的资产包括BitCrystals、FoldingCoin和 Tether。
另外,公证通和BitProof通过结合区块链的不可更改性与元数据功能,确保特定文件的有效性和合理性。这是元数据应用最广的领域。
其它应用还包括数字艺术档案的访问权和版权以及区块链中信息的永久有效性。
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