Homework on Provenance - Questions

[aperes]

1. Blockchain enables digital provenance by being verified by multple verifiers, by including all information of the transaction in the transaction, by being an “add-only” database, and by being public i.e. transparent.
2. Normal databases are stored centrally and data can be removed or overwritten in them as opposed to blockchain.
3. The ability to digitally track where your supply/ingredients/goods come from and their chain of custody since their inception or production is priceless for credibility of a business.

[Giorgia]

Homework on Provenance - Questions

1. How does blockchain enable digital provenance?
   On the blockchain all the transaction are recorded and can be tracked in real time. Informations on the blockchain are verified and can be audited without the need of any middle man.
2. Why doesn’t a normal database bring the same provenance?
   Information on a normal database can be altered or changed but this doesn’t happen on the blockchain as all the informations cannot be manipulated.
3. Why is digital provenance such a great benefit to many businesses?
   Transactions are verified and can be trusted. No need for middle man/company to verify it. It is all verified on the blockchain.

[Boshty]

1.) Blockchain is a public ledger that anyone can view and cannot be tampered with or changed. Therefore any information within the block can be traced to enable digital provenance.

2. Normal databases do not have the same technology as Blockchain as information can be changed, tampered with or even erased and there is a large amount of trust involved.

3. Digital provenance eliminates the need for trust. This technology also eliminates the need for long auditing procedures.

[Luca_C]

1. How does blockchain enable digital provenance?

The block chain is a public ledger therefore accessible to everyone. Every transaction is added to the blockchain and is immutable.

2. Why doesn’t a normal database bring the same provenance?

A normal database is trust based and the data can be removed, copied or modified.

3. Why is digital provenance such a great benefit to many businesses?
   It will allow many businesses to check their production chain in more accurate way. It can provide detailed information to their customers about their products. Every process will be more transparent and hack proof.

[Bozidar]

1. Blockchain tracks origin and database of transactions and the written cannot be removed,and stays visible to the public forever
2. Normal data base is trust based system and data is deletable and can be modified
3. It enables to track their production in accurate and more detailed information to the customers

[sibor]

1. It’s only possible to write data into blockchain, it isn’t possible to change any information who already is written and therefore the data you get is the origin data who has been registered

2. A normal database can’t secure that the data who’s written not have been changed any time after the message was written

3. Because it can ensure data, and automatic give you necessary audit

[Randallcrum]

1. Blockchain enables digital provenance be using a public distributed ledger. This prevents falsification of the offer because a diff ledger wouldn’t match the other copies.

2. A normal database doesn’t provide the same benefit because a normal database is centrally located and susceptible to falsification. Verification would require an intentional audit from a trusted third party. Blockchain has many such third parties and auditing is unnecessary because false ledgers are discovered upon initial publication and rejected.

3. Digital provenance removes the necessity of third party audits and the requisite trust. This reduces necessary record keeping and streamlines the process of ensuring compliance with provenance requirements.

[THeikkila]

1. Because blockchain is decentralized system you don’t have to trust one direction.

2. Because of the central authority or government that can control or manipulate it. In normal database there is also possible to erase data which is not possible in blockchain.

3. As a customer you are able to see whole process so know one can fool you. With open system it is more trustworthy to all who are involved with the business.

[Toddness]

1. Decentralized and immutable.
2. Not public and can be altered.
3. A whole supply chain is readily accessible and searchable.

[cherryknot]

1. Blockchain allows to track all transactions in real time. Because it is a public ledger, anyone can see the records which cannot be removed.

2. Because it is based on trust.

3. It can be verified instead of relying on trust.

[Zackary_Cho-Sam]

1. Trust less.
2. A normal database can be changed.
3. it is great because everything can be verified in real time.

[ShadowAce]

1.- By having a decentralized and verifiable ledger
2.- Because the information that they have is not transparent and verifiable like the blockchain ledger, only the owners have access to that information.
3.- You can verify all sorts of information, where the product comes from, who makes it etc

[cryptopastor]

1. The ledger is decentralized, so there are many copies checking and verifying it’s accuracy. The blockchain can only be added to, data can’t be removed.
2. Normal databases can be copied, data can be removed, and they can be hacked.
3. It provides instant auditable records. Don’t trust-verify.

[Albay]

1. How does blockchain enable digital provenance?
   By real time auditing.

2. Why doesn’t a normal database bring the same provenance?
   I think it can`t truck on a real time.

3. Why is digital provenance such a great benefit to many businesses?
   It can put together accounting layer with transection layer.

[Alko89]

@Albay

I think it can`t truck on a real time.

Normal databases can also be modified.

[Priorism]

• How does blockchain enable digital provenance?
  A: The accounting layer and transaction layers are available to the public and is stored on the network. As such, one is able to track all of the transactions details from start to finish; in other words, where it came from and to where it went.
• Why doesn’t a normal database bring the same provenance?
  A: Through the blockchain, transactions can be verified from multiple sources.
• Why is digital provenance such a great benefit to many businesses?
  A: Digital provenance makes for an efficient and trustless auditing environment

[roccco81]

1. It provides real time Auditing which basically puts the accounting and transaction together. Which takes directly switches us from having to trust 3rd parties to do that job and letting us directly verify every transaction even verify origin of each transaction.

2. Normal database is not directly accessed to public hence making it centralized which in return forcing us to trust 3rd parties in which full transparency is not available .

3. Other than it is very much cost effective , it allows for full transparency and enables vendors and buyers to be able to verify every stage of the end product .

[Stubangaz]

1. How does blockchain enable digital provenance?

Blockchain is a permanent open ledger so every transaction is recorded and unable to be altered or deleted. Thus making it transparent and verified.

2. Why doesn’t a normal database bring the same provenance?

Traditional databases are controlled by a central authority and therefore can be altered, deleted or manipulated without the need for verification.

3. Why is digital provenance such a great benefit to many businesses?

Digital provenance is a great benefit to business as it offers transparency and verification. Businesses can see exactly what they are getting and where it has came from.

[Fern]

1. Blockchains can have data added, without the possibility of removal. This means that encrypted information can be auditable and accessible by other users, allowing them to track and check the validity of past transactions.

2. Normal databases that rely on traditional forms of payments contain separate transaction and auditing layers. This introduces the need for intermediaries which obfuscates certain processes, which can also mean added fees and potentially nefarious practices.

3. Digital provenance will benefit businesses because it combines the accounting layer with the transactional layer. This, combined with the transparent nature of blockchains eliminates the reliance of trust on other businesses in the supply chain. Businesses will no longer need to rely on the ‘word’ of their suppliers, since digital provenance can be checked by themselves and other users.

[Mycelium]

1. How does blockchain enable digital provenance?
   Blockchain technology is a decentralized database where information is encrypted. It can be added but not changed or removed. As it is a public ledger the data can be audited by other users making it transparent and secure. All transactions or information added to the blockchain have to be verified by the blockchain network.

2. Why doesn’t a normal database bring the same provenance?
   The normal database is controlled by third parties like banks or the government. They are not public and can only be accessed by those organizations. The information can be changed or removed. There is a need to audit all the information that is added, changed, or removed to verify if it correct.

3. Why is digital provenance such a great benefit to many businesses?
   It removes the “trust” between companies meaning there is transparency for the business working together. It makes it more secure, more efficient, and effective.