IBM has cut its blockchain team down to almost nothing

Re:IBM has cut its blockchain team down to almost nothing – ... by Jasper_ on Wednesday February 03, 2021 @10:51AM (#26014715)

I don't understand the supply chain use case. You can't trust the third party to enter "shipping container #123 has 10,000 bananas" into a centralized database, but you can trust them to enter "shipping container #123 has 10,000 bananas" into a blockchain? They can still lie about what they put into the blockchain, it isn't magic.

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Re:IBM has cut its blockchain team down to almost nothing – ... by rglullis on Wednesday February 03, 2021 @02:16PM (#26017836)

Of course they can lie, but with blockchain it is much easier to detect the lie. If the banana producer has a receipt from the shipping company that says "10,000 bananas in the container for Jasper" and the shipping company only has 8,000 to put at your door, you can be sure it who was malicious.

Without a blockchain, if the shipping company and banana producers were colluding to skim you of 2,000 bananas, it's much easier for them to do.

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Re:IBM has cut its blockchain team down to almost nothing – ... by HideousKojima on Wednesday February 03, 2021 @04:20PM (#26019256)

If the shipping company and producer are colluding, blockchain does nothing to stop that.

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Re:IBM has cut its blockchain team down to almost nothing – ... by rglullis on Wednesday February 03, 2021 @04:58PM (#26019714)

No, but if the producer has a record saying they put 10 bananas and the shipping company only delivers 8, it will be undoubtedly on the shipping company to bear the costs of the difference.

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Re:IBM has cut its blockchain team down to almost nothing – ... by Jasper_ on Wednesday February 03, 2021 @05:24PM (#26019980)

OK. But what if the producer said they put 10 bananas, but they lied and actually put 8? When it finally gets to the recipient, nobody knows whether the shipping company stole them or whether the producer lied. The blockchain did not help.

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Re:IBM has cut its blockchain team down to almost nothing – ... by rglullis on Wednesday February 03, 2021 @06:09PM (#26020470)

Come on, it's not that hard...

I mention about the producer saying they have a receipt indicating 10 bananas. Whoever produced that receipt signed a message saying "I got 10 bananas from the producer" is now on record responsible for it.

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Re:IBM has cut its blockchain team down to almost nothing – ... by HideousKojima on Wednesday February 03, 2021 @05:50PM (#26020280)

So why wouldn't a central database work, with the producer entering how much they sent to the shipping company, and the shipping company entering how much they sent?

What in the world does the use of blockchain enable in this case?

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Re:IBM has cut its blockchain team down to almost nothing – ... by rglullis on Wednesday February 03, 2021 @06:14PM (#26020524)

Who controls the "central database"? What if the manager of the central database is colluding with the shipping company, or the producer?

What if the manager of the central database wants to block one of the producers to favor another one?

"What does the blockchain enable in this case?"

To get rid of the central database and all the potential sources of conflict?

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Re:IBM has cut its blockchain team down to almost nothing – ... by bluesign on Wednesday February 03, 2021 @01:32PM (#26017247)

Imagine like you trust edges but not middleman.

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Re:IBM has cut its blockchain team down to almost nothing – ... by madmax96 on Wednesday February 03, 2021 @02:01PM (#26017648)

It doesn't eliminate that. But it gathers evidence. Where did they acquire the 10,000 bananas? Multiple parties must collude -- and then that collusion is on record.

I'm interested in if that data is useful to anyone?

Also, why not trust a central entity with that data?

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Re:IBM has cut its blockchain team down to almost nothing – ... by HideousKojima on Wednesday February 03, 2021 @04:22PM (#26019272)

>Also, why not trust a central entity with that data?

I.E. blockchain does nothing to solve this potential issue

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