照片公司伊斯曼柯达股价上涨近120%，原因是该公司公布了自己的加密货币——柯达币的计划。
这家美国公司表示，它将与总部位于伦敦的文恩传媒集团合作，进行首次发行(ICO)。
这是一个基于区块链的倡议的一部分，旨在帮助摄影师控制他们的肖像权。
柯达还详细计划在纽约的罗切斯特市的总部安装成排的比特币挖掘设备。
在拉斯维加斯举行的CES科技展上，这一计划的细节已被描述为柯达喀什。
客户将预先支付租金，以租用采矿能力。
在公布了与区块链相关的活动计划后，柯达是一系列公司中最新的一家。
剑桥大学的Garrick Hileman评论说:“这是我们在上世纪90年代末的网络时代所看到的一种现象，传统的公司会提到某种互联网策略，他们的股票价格会上涨。”
“当你看到股价像这样移动时，它确实令人不安——很难判断是否存在泡沫，但它确实表明存在泡沫的投资市场。”
硬币创造
柯达在加入数字革命的进程中反应迟缓，而且它迟迟不愿留下自己的电影遗产，这让该公司在市场上付出了代价。
自2012年倒闭以来，柯达已将其品牌授权给各种制造商，其商标出现在电池、打印机、无人机、平板电脑和数码相机上。
该公司的运营将由Spotlite经营，该公司此前曾与柯达合作，利用其品牌来推广LED灯。
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为了验证加密货币的交易，挖掘涉及到处理复杂的数学问题的过程。
任何由柯达公司生产的比特币都将在客户和企业之间共享。
每一个挖矿机的盒子——包括电脑处理器和风扇来保持冷却——将会使用大约相同的电量，就像在时钟上运行一个电吹风一样。
但该计划将能够利用柯达的现场发电设备。自柯达的全盛时期以来，该工厂一直有闲置产能。
该公司表示，它可以为每台钻机提供每千瓦时4美分的电力，这比在国内运营一个钻机要便宜得多。
根据比特币的Halston Mikail对BBC的报道，以比特币目前的价值，在24个月的开采中，一笔4000美元(2,954美元)的前期投资可以获得每月500美元的利润。
但Mikail补充说，任何希望加入这场赌博的人都必须等待，因为产能已经被出售了。
“目前我们有80名矿工，我们预计还会有300名矿工。”需求很大，”他说。
比特币是出了名的不稳定，一些分析人士担心比特币的价值可能会崩溃，从而导致那些预先支付了开采能力的人损失。
但Mikail表示，如果比特币出现问题，这些钻井平台可能会在其他任务上进行工作。
“比特币可能是一个泡沫。但区块链行业并不是一个泡沫，”他说。
“这是一个建立在数学基础上的坚实平台，它将会继续存在下去。”
柯达的货币
柯达的另一项举措，柯达币，是为了建立一个全球的图片所有权的总账，摄影师可以把他们的作品加在一起。
相关的柯达软件将被用于抓取网页并找到未经许可使用的图片。
该公司表示，它将“管理授权流程”，因此可以在柯达币上支付拍照者的报酬。
柯达首席执行官杰夫克拉克表示:“柯达一直在寻求使摄影大众化，并让艺术家们获得授权。”
“这些技术给摄影社区提供了一种创新和简单的方式来做到这一点。”
该公司的股价比开盘后的收盘价高出了130%，收盘时上涨了119.4%。
但有一位专家表示怀疑。
“将信息存储在区块链中，对版权的保护并不比版权法更有效，”50英尺区块链的攻击作者大卫杰拉德评论道。
请注意他们是如何营销的:他们陈述了一个问题，然后说区块链可以解决这个问题。但是，区块链没有任何机制可以做到这一点。
“这并没有为Shutterstock或Getty Images做任何事情。”
即便如此，一些人认为柯达并不是最后一个将自己与ICO联系在一起的家喻户晓的名字。
Hileman表示:“我预计，我们将看到更多的主要品牌推出自己的代币和货币，以支持各种产品和服务。”
“这是很多大公司都在思考的问题。”
Shares in photo firm Eastman Kodak soared nearly 120% after it revealed plans to mint its own crypto-currency, the KodakCoin.
The US firm said it was teaming up with London-based Wenn Media Group to carry out the initial coin offering (ICO).
It is part of a blockchain-based initiative to help photographers control their image rights.
Kodak also detailed plans to install rows of Bitcoin mining rigs at its headquarters in Rochester, New York.
Details of this second scheme - which is being branded the Kodak KashMiner - were outlined at the CES tech show in Las Vegas.
Customers will pay up-front to rent mining capacity.
Kodak is the latest in a series of companies to see its value jump after revealing plans for blockchain-related activity.
"This is a phenomenon we saw back during the dot com days in the late 1990s where traditional companies would mention some kind of internet strategy and their stock price would jump up," commented Garrick Hileman from the University of Cambridge.
"When you see stock prices moving like this it does appear to be troubling - it's hard to say if there's a bubble but it certainly is indicative of a frothy investment market."
Coin creation
Kodak was famously slow to join the digital revolution, and its hesitation to leave behind its film heritage cost the company its market.
Since its collapse in 2012, Kodak has licensed its brand to a variety of manufacturers, with the mark appearing on batteries, printers, drones, tablet computers and digital cameras.
The KashMiner operation will be run by Spotlite, a licensee that had previously teamed up with Kodak to use its brand to market LED lights.
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Mining involves carrying out processor-intensive tasks to solve complicated mathematical problems in order to verify crypto-currency transactions.
Any Bitcoins generated by Kodak KashMiner will be shared between the customer and the business.
Each of the mining rig boxes - which include computer processors and fans to keep them cool - will use about the same amount of electricity as running a hairdryer around the clock.
But the scheme will be able to take advantage of Kodak's on-site power generating plant, which has had spare capacity since Kodak's heyday.
The company says it can power each rig for four cents per kilowatt hour, which is significantly cheaper than running a rig at home.
At Bitcoin's current value, an up-front investment of $4,000 (£2,954) for 24 months of mining could earn a profit of $500 a month, Spotlite's Halston Mikail told the BBC.
But anybody hoping to join the gamble would have to wait, as capacity is already sold out, Mr Mikail added.
"At this time we have 80 miners, and we expect another 300 to arrive shortly. There is a big pile-up of demand," he said.
Bitcoin is notoriously volatile and some analysts fear its value could crash, resulting in a loss for those who had paid up-front for mining capacity.
But Mr Mikail said the rigs could be put to work on other tasks if Bitcoin faltered.
"Bitcoin could be a bubble. But the blockchain industry is not a bubble," he said.
"It's a solid platform built on mathematics and it will survive."
Kodak currency
Kodak's other initiative, the KodakCoin, is being created as part of an effort to build a global ledger of picture rights ownership that photographers can add their work to.
Associated KodakOne software will be used to crawl the web and find pictures that have been used without permission.
The company said it would then "manage the licensing process," so the photographer can be paid, in KodakCoin.
"Kodak has always sought to democratise photography and make licensing fair to artists," said Kodak chief executive Jeff Clarke.
"These technologies give the photography community an innovative and easy way to do just that."
The company's shares traded more than 130% above their opening price after the announcement before closing the day 119.4% higher.
But one expert had doubts.
"Storing the information in a blockchain doesn't protect your copyright any more than copyright law already does," commented David Gerard, author of Attack of the 50ft Blockchain.
"Notice how they're marketing it: they state a problem, then say the blockchain can solve it. But there's no mechanism by which the blockchain could do that.
"This doesn't do anything that signing up for Shutterstock or Getty Images wouldn't."
Even so, some think Kodak will not be the last household name to associate itself with an ICO.
"I expect we are going to see more major brands releasing their own tokens and currencies to support various products and services," commented Mr Hileman.
"It's something many big companies are thinking very hard about."