Homework on Provenance - Questions

Blockchain and Bitcoin 101
#183

How does blockchain enable digital provenance?

Blockchain enables digital provenance by keeping track of every transaction thanks to the public ledger. On this ledger, the information can only be added and cannot be altered or deleted.

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

Because a normal database can be altered. Once, information is put on the blockchain it cannot be changed. It removes trust on all levels and brings a truslessness environment where you don’t need to trust a partner to exchange with him or her.

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

Because it removes trust on exchanges. You don’t need to trust to do business. It also brings transparency and allow the tracking of information in real time.

#184

Homework on Provenance.

  1. Provenance means the chronology of the ownership, custody or location of an object. By using blockchain technology, you can actually validate this information rather than depending on the trust of a third party.

  2. Normal databases are not able to bring this type of provenance because they are dependent on third parties and some might not be very truthful.

  3. Digital provenance is great for many businesses because it can streamline many accounting functions (inventory, taxes, audits, etc.) as well as cut down on business costs.

#185

  1. How does a blockchain enable digital provenance?
    The blockchain enables digital provenance since the input of the provenance is stored in the blockchain and it can not be changed. The inputs on the blockchain are stored in a decentralized database. So they can not be changed unless all of the participating computers agree on the change.

  2. Why doesn’t a normal database bring the same provenance?
    A normal database has only one owner and the owner can change the database when this person wants to change it. Nobody has to agree with him.

  3. Why is digital provenance such a great benefit to many businesses?
    You can trust the information of the provenance of the products is correct. You can not erase what has been written on the blockchain database. So you can have quality control and communication with the supplier if something goes wrong with the product. It benefits many businesses that have identical or similar products.

#186

Because it creates a transparent environment for organisations and consumers

#187

1- Blockchain is decentralized / trustless and publicly verifiable

  • Every transaction becomes a permanent “ledger entry”
  • No transaction can be edited / deleted

2 - Centralized databases are open to manipulation

  • Data entries are prone to human error
  • Certain “3rd party” data is based on trust

3 - Real-time auditing of all transactions

  • verification of correct information
  • Free from manipulation and “creative accounting”
#188

1.Allows you to add Data but not remove it. 2. The Blockchain is a public ledger. 3. You can track and trace all transactions.

#189
  1. blockchain enables digital provenance by tracking down “the transaction”in its database.
  2. a normal centralized database is based on trust to the maker, in a decentralized blockchain database trust is replaced by verification of the “transactions” by the participants in the blockchain database.
  3. it enables the business tot verify the different ingredients in the supply chain.
#190

  1. It allows for an immutable chain of all-time data and transactions with full transparency, trustless verification by the network, and it cannot be erased.

  2. A normal database is usually governed by one party or a group of parties which can be deleted or corrupt at anytime, by anyone. Transactions and data are not immutable on a normal database, and there is no trustless verification of transactions.

  3. This is a wonderful utility for businesses, and I am excited to see its adoption. For example, many eco-friendly and animal-friendly companies want to be transparent about how their products are created, and the blockchain would be a truthful, verified source for customers to see this - and to also “believe” what they see. And the bad actors who lie or stretch the truth about their products would hopefully cease to exist in this new space in the future (or change their ways to be more truthful).

#191

How does blockchain enable digital provenance?

By providing real time auditing solution on an immutable public blockchain.

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

A normal centralized database is unable to provide the “trustlessness” nature of digital provenance, because this type of database is not immutable.

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

With the advent of distributed ledger technology we are able for the first time to verify all aspects of a products creation in real time on a public blockchain where the data cannot be altered, maximizing efficiency and the accountability of the product for the manufacturer as well as the customer. It removes trust from the equation, you simply verify the products creation path.

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#192

Blockchain has a digital ledger that cannot be changed, only added to.

A normal database can be changed, or have specific information deleted at any point.

Businesses and consumers can track where all of the goods and ingredients in their products come from. This eliminates the need for trust in the supply chain.

#193

1.Blockchain enable digital provenance by creating a record where all the data cannot be modified .
2. Because a normal database can be modified by any authority before the creation of the final product. The customer is obligated then to trust the quality of the product without knowing all the passages.
3.Because Businesses can provide certainty of the quality of their products to the customers .

#194

Blockchain is a public ledger; so all transactions can be traced and tracked, in real time.

A normal database can be hacked and erased, audited.
This database is also based on trust, therefore not opaque.

That way we know what we’re actually getting, you are able to track all your ingredients.
This is not based on trust, but is verified.

#195

Provenance= source of origin

  1. Since blockchain is a public ledger we can trace the source of origine to each product or transaction.
    And since blockchain is like a stone we can only add information/transactions. We cant remove them or change past transactions/informations we can only add to them.

Lets say we have a company that wants to produce fish. With provenance we can trace when and where the fish was slaughtered- when the fish was packed, when and where the fish was shipped, when it arrived at its destination.And in the end the consumer can buy fresh fish. (Almost):smile:
And the consumer dont need to worry that the information was tampered with.A trustless system.

A normal database dont bring as much detailed information to the consumer. And the information can be changed , a greedy company can change the experation dates and stuff like that without being cought. If you do it with blockchain, you can trace it back to the place it was changed and who added the new information.

  1. Take my example about fish. If a company can slaughter the fish at 06.00 in the morning and transport it to the store so it can be sold the same day at 12.00. (This would be almost like catching your own fresh fish). And the best thing it is fresh fish.
    And the company can prove that it is true. This will give companies an edge over the competition.
#196

1- By being a decentralized and open ledger that can be seeing and verified by anyone anywhere in the world.

2- Due the nature of a centralized network which can be manipulated to address the interest of a few and leaving the people out of the truth.

3- Because allows us to have the most transparent system to be able to track and verified data based on science and not human emotions that can bring us inconvenience.

#197

Blockchain is a public ledger which stores all transactions added to it and no transactions can be removed.

A normal database could be changed or altered by anyone with access to it so is not transparent in the sameway as blockchain.

Digital provenance is great for business as you do not need to rely on trust. Each stage of supply can be traced and verified.

#198

  1. By making it possible for auditors to follow the transactions origin, not only that but in real time monitor where the transactions are going forward. Like the comparison about the Viking Stone, data can be added (but only verified data) though never removed from the public ledger, this guarantees that what you see is verified, and you do not have to trust anymore…

  2. A normal database can be edited by individuals, more often than not privately. Therefore we cannot verify the authenticity of the shared information. We have to trust the editor. While this is built on mostly blind trust, these databases cannot give to us a verified digital provenance.

  3. Many businesses (hopefully al of them) will welcome digital provenance to avoid not being able to see the other side of the moon, the hidden facts, meaning they will be able to see in real time:

  • Where their products originated from.
  • All the handling and quality of their products while traveling from origin to destination.
  • How they will be able to verify without trusting the other parties.

All these aspects are the Darkside without digital provenance.

#199

• How does blockchain enable digital provenance?
o Provenance is the ability to identify the origin of an item.
o Because a blockchain is a public ledger to which nothing can be deleted, the item can be tracked from its origin to its current location, and verified by other computers (trustless).

• Why doesn’t a normal database bring the same provenance?
o Items can be deleted from a normal database.
o Items can be changed in a normal database, i.e., immutable.
o A normal database may not be real-time.
o A normal database is not verifiable.
o A normal database is centralized.

• Why is digital provenance such a great benefit to many businesses?
o Real-time auditing.
o Easily copied.
o Easily verified.

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#200

  1. through a trustless public ledger that is immutable in that information can only be added to the ledger and not removed.

  2. a normal database is centralized so transactions can be altered making it untrustworthy.

  3. transactions can be tracked in real-time and an auditor is not needed.

#201

Answers

  1. By acting as ‘Distributed Decentralised Immutable Public Ledger’.
  2. Most are mutable … Can be changed, most are centralised.
  3. Accountability
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#202
  1. by showing the initial point until the current point in the ledger
  2. a normal database can be manipulated, a blockchain can not, there can only be added but not removed information
  3. for transparity reasons, accountance and paiments are locked in the blockchain.