Homework on Provenance - Questions

Blockchain and Bitcoin 101
#5484

How does blockchain enable digital Provenance?
By Tracking and tracing all transactions in realtime it creates an immutable ledger that can’t be changed

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#5485

Why doesn’t a normal database bring the same Provenance?
Because the layers are seperated and unsecure

Why is digital provenance such a great benefit to many businesses?
The abillity to track and trace all transactions and inventory

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#5486
  1. How does blockchain enable digital provenance?
    Blockchain enables digital provenance by enabling the ability to trace transactions, details, audit in real time and cannot be manipulated.
  2. Why doesn’t a normal database bring the same provenance?
    A normal database can be manipulated at any stage, cannot track in real time and is opaque. A normal database is also centralized and can’t be trusted.
  3. Why is digital provenance such a great benefit to many businesses?
    Provenance is a great benefit to business because it creates trusted trail/ledger in which everything relevant to business & consumer can be verified at every stage of a process without manipulation.
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#5487

  1. The blockchain gives real time auditing and tracking of transactions and/or other activities.

  2. A Normal Database are limited in information and is easier to manipulate.

  3. Digital Provenance allows the Businesses to verify and track the products through the decentralization of information. They get more transparency and don’t have to rely on Trust because the data is Immutable.

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#5488
  1. blockchain technology enables digital provenance thorugh saving every step of the supply chain of a product inside of a blockchain.
  2. A normal database can be edited afterwards, while data inside the blockchain can’t be manipulated anymore.
  3. Digital provenance is a great benefit for many businesses because they can absolutely be sure, where the parts of their product came from. E.g. a company producing schnitzel from pigs can be sure that the pigs they’re using had a good life (enough space, enough to eat, etc.) and therefore they can honestly print this information on their labels.
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#5489
  1. The blockchain uses real time auditing through a network of decentralised computers (nodes) to verify the authenticity of transactions and records.
  2. As a normal database is centralised it is less secure and more prone to tampering. The decentralised nature of the blockchain means that numerous sources have to verify or validate a transaction before it can be added to the blockchain.
  3. Provenence allows businesses to have transparent access to all the stages of a supply chain to confirm that each stage has been completed as per agreement. It replaces trust with verification.
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#5490

1.Humans interactions with a computer network are called transactions linked to a user account which can be anonymous or private. In a blockchain the transactions are public and listed on the immutable blockchain illustrated by something carved in stone, but linked to a wallet address which can change. This human right of privacy can also be manipulated by malicious agents intent on fraud or other criminal activity. As long as the user protects his access keys the system can confirm there transactions either small or large as legitimate.

  1. Databases are not immutable and can be changed in the background by a user with admin privileges to the database.

3.In the early days of the internet and the use of distributed applications offered by companies to staff and customers users did not take security seriously and used ridiculously short, easily guessed passwords and pin numbers across multiple sites creating the hacker sub culture. Block chain has lifted the security by forcing the use of long complex passwords and pass phrases & word lists allowing businesses to more securely protect their assets be it cash, IP and customer data.

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#5491
  1. How does blockchain enable digital provenance?
    By the ability of being able to verify and provide confirmation without any form of trust being involved.
  2. Why doesn’t a normal database bring the same provenance?
    a normal database is based on trust. the database doesnt need to be verified by multiple sources so the data /information may (or may not) be correct. The data can also be manipulated easily.
  3. Why is digital provenance such a great benefit to many businesses?
    Businesses can benefit by being able to verify all supply chains/ goods have come from a verified source which adhere to the companys ethos/ principals resulting in customers being able to buy with confidence.
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#5492

1)The blockchain allows us to track each transaction and follow it back to it’s source.

2)Because it could be changed without leaving a trace, what can not be done with Blockchain whithout allerting the whole community of users who would see the sequence inconsistent after the changing

3)It stops making fake products and copies or modifications.

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#5493
  1. It enables verification of origins and its subsequent evolution.
  2. a normal database does not verify with multiple nodes on the net to confirm veracity.
  3. It streamlines the process by removing TRUST as a factor. No need to trust, just verify
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#5494
  1. All transactions are traced and tracked in real time on a public ledger, where anyone can see all information. The accounting layer can be put together with the transactional layer, which basically will enable real time auditing in the future.
  2. Normal data bases rely on trust that for example your supplier really is supplying what he is claiming he does.
  3. Digital provenance creates a trustless environment, where you can easily verify all information relevant for you.
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#5495
  1. How does blockchain enable digital provenance?

With provenance we are tracking things, thus removing trust. You do not have to hope that someone is telling the truth as you use the math to verify things in the public ledger which contains all transactions as these transaction can not be deleted. Example Clothes. And you want to be able to track where the clothes come from. Whether they have been in a factory which use child labor. Alll these transactions would be contained in the blockchain. And buy using provenance you can track all these transactions, and verify the truth thru the math .

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

in a normal database, transactions can be deleted. A normal database is stand alone, where as a block chain Is a network of computers (each with their own local block), that are linked together and where on a real time basis the transaction is checked against the historical data. Additionally, there is no network of computers which are linked together

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

It is trustless. You can use it the math to verify. So it save time, thereby increasing efficiency, decreasing costs. And because of the insights you get , it will bring value in terms of streamlining processess.

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#5496
  • How does blockchain enable digital provenance?

Blockchain provides a digital ledger. The blockchain ledger is unique, in that, it cannot be changed once entered onto the blockchain. Therefore, my nature of the code, it provides a transparent audit trail that can be verified and checked against. The transactions in the blockchain cannot be modified, provided a perfect digital provenance.

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

Normal databases allow changes to transactions. The complete nature of blockchain differs from a normal database. There might be a limitation to the information within the transaction and thus does not provide complete provenance.

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

In the age of big data, all large companies today are dealing with data governance in a big way. Having a ledgers that connects all company applications would greatly benefit businesses today. The application of blockchain is still on the fringe of innovation, but the uses are many.

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#5497
  1. It is a non-hackable system that is redundantly verified so that the information on provenance (aka origin) is pristine.
  2. Normal databases do not have this ability to be redundantly verified because there is no reference to multiple third party copies.
  3. It keeps trust out of the equation and allows rapid and uninterrupted flow of business assuming a block chain system is in place for inventory, production, supply and manufacturing (for example)
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#5498

  1. A blockchain is in itself proof of origin/content. It’s a public ledger that can only be added to by consensus.

  2. A normal database could be privately modified or hosted by an untrusted source.

  3. It takes trust out of the equation and could provide real time auditing/supply chain verification.

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#5499
  1. The proof of work is all recorded and shared between each network, so anyone can see where currency from transactions is coming from and/or originated from
  2. A normal database requires a “middle man” or an accounting component to record each transaction and verify that each transaction is legitimate on both ends and no misinformation has been spread, but with a blockchain the data is “engraved in stone”, and a middle man is not needed due to the transaction being accounted for within the network of blockchains.
  3. As long as a currency has digital provenance, transactions can work on a large scale peer-to-peer basis rather than going through banks or being centralized. This means less fees and no third party involvement.
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#5500

1 Blockchain enables digital provenance because transactions are immutable and trackable

2 Normal database doesn’t bring the same provenance because it is a centralized system and not everybody has access to it

3 Digital provenance is such a great benefit to many businesses because it is based on verification and not on trust

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#5501

  1. By combining the interaction between users, the digital signature of the interaction itself, and a decentrally distributed open ledger system; leading to provable trust aka provenance

  2. a normal database does not contain an easily discernable signature of the interaction, nor does it share any of this information readily with external parties; it just records the interaction outputs, and maybe some signatory data.

  3. because trust is not easily established between parties, nor is it easily verifiable in a timely manner

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#5502

1. How does blockchain enable digital provenance?

Blockchain, designed as a decentralized network of nodes, enables data to be stored in a database without a central authority that governs the database. In that way, blockchain assures that 1) data is not governed by a central authority, 2) all data can be accessed by any node and 3) (“quasi”-) immutability of data stored on the blockchain. In a nutshell, blockchain is a digital public ledger, that enables any node of the blockchain network to access all information that has ever been stored on the blockchain, which enables any node to use this data/information to verify provenance.

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

A normal database is usually centralized and governed by a single authority. Hence, the central authority owns the data that is stored on the database and it may modify, alter or destroy the data. The central authority may block anyone from accessing some or all data that is stored on that database. Furthermore, data corruption as a result of an attack is more likely to be successful on a centralized database as compared to a decentralized blockchain network that consists of numerous nodes. Thus, the (unknown) level of data integrity of a normal database makes it less trustworthy for verifying provenance.

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

Digital provenance helps to establish a more transparent business environment. Business parties can use data stored on the blockchain to quickly verify information that is relevant to the business, thereby increasing efficiency while simultaneously reducing opaqueness of business processes. This can be achieved without having to rely on a third party.

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#5503
  1. By sharing the same data among several nodes around the world. Anyone who wants to become a node can get the full data
  2. Database updates can be done without logging those changes. In blockchain every state change is logged.
  3. It allows businesses to develop different ways to verify the supply chain, without having to get a third-party.
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