Homework on Provenance - Questions

[Crypto.Puzzle.Guru]

1. It is a “Write and Read” only publicly viewable database that is decentralized from control of any entity, government or otherwise. Nothing can ever be deleted from the blockchain.

2. Normal databases are created and fully controlled by a single entity or croup of collaborating entities, that is controlled and fully editable.

3. Digital provenance is amazing because it allows for individual transaction specific information to be tied to the blockchain (encrypted or not) (ledger) transaction, making digital auditing and confirmation incredibly easy, and undeniable.

[Remy]

1. Blockchain puts together an accounting layer with an transaction layer.

2. Because it’s based on trust and you can’t verify.

3. It solves business challenges securely, efficiently and with trust.

[sats4all]

1. All data / transactions written in the blockchain can’t be erased or manipulated. It’s an open ledger and provenance can be traced back.
2. A normal database is more vulnerable and can easier be hacked or deleted.
3. You are able to get a product verified. E.g. control of ingredients and quality or if a product is genuine in real-time auditing. You don’t have to trust anyone!

[Mauro]

No worries. Keep up the good work.

[Mauro]

@damon_venter

2. Normal database can be trust-less due to human factors.

I assume you meant to say that they can’t be trust-less.

[Mauro]

@jachinto_w

The blockchain will unable the traceability of the products and eliminate false information during production of something from the components.

“The blockchain will enable the…” I assume you made a typing mistake there.

[Mauro]

@FireStorm

1. Blockchain provides a secure means of enabling secure traceability of certifications and other salient information in supply chains. This provenance enables every physical product to come with a digital ‘passport’ that proves authenticity (Is this product what it claims to be?) and origin (Where does this product come from?), creating an auditable record of the journey behind all physical products.

Yes. But how can a blockchain achieve provenance?

[Melki]

Blockchain enables Provenance because you can keep track of where your components are at different stage of the supply chain, Or different stage of your transaction in financial exchange.You can add data to
the blockchain but you can not take out data.
A normal data base would not bring the same provenance because it can be altered.
The benefit to business is because it is a trustless system. You do not need third party validation.The moto is Verify.

[Mauro]

You are a whole new person now.

[KennyMcCormick]

Blockchain cuts out the need for trust between people as everything can be verified and checked and traced.

A normal data base forces you to have to rely on someone else word or promise, and what the blockchain technology does is it eliminates exactly that.

Digital Provence in businesses will help create transparency in the supply chain.

[Mauro]

These are some creative answers. Hahaha. I like it.

[Mauro]

@Howlatthemoon

For centralized databases, if one person were to hack into the main database, they could change the data and for decentralized through segmentation they could change the portion of data stored on that computer.

Even if there is no hack, they can technically change data as well. That’s another bad point for the centralized database.

[Mauro]

@monymike

1-tracks digital history in real time not to be able to be removed

Yes, but how does the blockchain actually achieve provenance?

[Mauro]

@kidsmoney

Data can be removed. Less need for Accountants

What about the first question? Do you need any help with that one?

[Mauro]

@Quiroz

cata can be removed from the database is what you are saying?

@Quiroz

and less need for accountant is because of the blockchain. yes?.

I think that is what he meant.

[Mauro]

@frabosce

but also to companies that are part of a supply chain and have to trust other companies in that chain.

Very nice thinking. A great example. Keep it up.

[Mauro]

@Maris

1. How does blockchain enable digital provenance?
   Blockchain allows to track transactions in real time. It is like auditing in real time.

Yes. But you haven’t answered how does the blockchain actually enable digital provenance.

[Mauro]

@CryptoZen

1.Blockchain enables provenance because it is decentralized.

While decentralization is very important, there sill needs to be a good consensus in order for a blockchain to have provenance.

[Mauro]

What about the other 2 questions? If you need any help feel free to DM me. You can always look at what other people wrote if you are stuck. Hope that helps.

[Mauro]

@Angelo_Canesso

To the question “How does blockchain enable digital provenance?”, many of you said that it is decentralized. Considering that a blockchain can be private. It is centralized and people that controls it can modify it.

Please correct me if I am wrong

Good question. Decentralization is a key component in order to have provenance on the blockchain. However we still need to make sure it has a good consensus, such as proof of work (POW). We also have permissioned blockchains such as EOS. The consensus they use is delegated proof of stake, in which only a chosen amount of nodes can update the blockchain. This type of blockchain has less provenance but scales better on chain.