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Author Topic: "Blockchain-as-a-Service" does it worth to use?  (Read 398 times)
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September 19, 2019, 07:29:39 PM
 #21

the purpose of a blockchain is about secure distributed data.
imagine a bank, where each local town bank office branch was a node. together they work as a network without worrying about a central server. no need for a HQ with auditors, IT guys. if one node goes down, another is sent through the post.
and again about the auditing, it becomes self auditing and trusted, transparent data.
these days for work/home/tax reasons people like to have access to bank statements for upto 6 years, so retaining data securely is better done by distributing it, rather than one central server.

Good point, but there are alternatives such as Distributed Database (such as DDBMS or Disributed NoSQL , not blockchain) with Mesh topology and Git FLS which also could achieve same thing.
So IMO i don't see any reason to use blockchain unless it's been proven more reliable or have lower cost than my example above.

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September 19, 2019, 07:49:40 PM
 #22

when it comes to wanting to edit or change a certain piece of data by multiple users, then yes alternatives exist. but when it comes to needing to retain a secure copy of data that cannot be edited then thats where blockchains strengths are.

like bank transfers and retaining bank statements for years
parcel/goods delivery which can trace back to source (food distribution industry love this)
car manufacturing/maintenance logs
hospital records
education/student grades
land ownership authorities
property management/repair
intellectual property authorities
insurance
.. the list goes on

im not saying everyone has to convert to blockchain, as thats stupid. but many in this topic are acting as if blockchains are useless and impractical for any use.

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September 20, 2019, 06:25:47 AM
 #23

franky1, then do the people who say that they need a "centralized, private blockchain", really do need a database?

blockchain is a database... what businesses need to ask is what,why how,who accesses it.


An append-only database. Why would companies want that, and if they truly did, how can they assure that their "private-centralized-blockchain-database" will be immutable, and secure from tampering? Cool

Quote

you have been very open to your subtle hints that you hate blockchain and you think people need to move off blockchains to either LN or liquid for btc, as well as saying blockchains wont work for other uses in different sectors. but you really need to, and i mean this sincerely, really need to do some dang research.



Roll Eyes Troll harder.

Quote

i understand you have limited technical knowledge, i understand your learning from a certain group of people with certain intentions. but it really is time you done some out of the box thinking.


I'm the stupid one. You are the person that newbies should listen to. I hope they do, and learn, the hard way.

Quote

imagine a central database, and then needing to back it up periodically. and because its central. have IT guys, auditors, security professionals monitoring the central server to ensure tampering dos not occur.

imagine a distributed database, which by its own design backs up each other (if one goes down others are available) where by design individuals cant tamper with it, it doesnt ned it, security, auditors either.


How can tampering then be assured impossible? What "proof" can they show its users that it's not "tamperable". Cool

Is there such a "database"?


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September 20, 2019, 07:32:49 AM
Merited by HeRetiK (1)
 #24

In its current state both "Public Permissioned Blockchain" and "Private Permissioned Blockchain" results could be replaced with "Git" and it would still

hold true. I mean that's pretty much how open source works (stored, verifiable versioning states; multiple writers, many of which are unknown, most of

which are untrusted; and one or more project maintainers that ensure code integrity but are not always online).

I totally get your point and I do agree with you that git and blockchains are similar in many ways.
Yet they differ for a number of reasons.
For example: git doesn't provide consensus, history can be re-written, it doesn't prevent double spending ...
Just to name a few.

We could also compare blockchains with other p2p databases, like distributed hash tables.
Every system has its benefits and drawbacks.

Why is everyone here always thinking that permissioned blockchains have no right to exist?
Hyperledger would be a good example here.

An append-only database. Why would companies want that, and if they truly did, how can they assure that their "private-centralized-blockchain-database" will be immutable, and secure from tampering? Cool

To persist/save state  Wink

Let's stick to the hyperledger example.
Here, immutability is ensured by the so-called ordering service.

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September 20, 2019, 08:36:08 AM
Merited by aundroid (1)
 #25

I totally get your point and I do agree with you that git and blockchains are similar in many ways.
Yet they differ for a number of reasons.
For example: git doesn't provide consensus, history can be re-written, it doesn't prevent double spending ...
Just to name a few.

That's the thing though, so far it seems like permissioned blockchains don't provide consensus, immutability and double-spending protection either. They provide the illusion of such.

Say a company runs their own instance of the Ethereum blockchain. What prevents them from rolling back unwanted parts of history?

After the public Ethereum blockchain rolled back / hard forked due to the whole DAO debacle the aftermath at least resulted in some purists running the original ETC chain. A lot of people needed to decide in favour of ETH over ETC for ETH to prevail -- when choosing which chain to mine, which codebase to work on, which currency to buy.

In a permissioned setting rewriting history becomes a mere executive decision.

Don't get me wrong. I'm very curious to see where decentralized consensus can lead us beyond currencies. But I think the use cases in non-public and permissioned settings are extremely limited.

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September 20, 2019, 08:52:35 AM
 #26


An append-only database. Why would companies want that, and if they truly did, how can they assure that their "private-centralized-blockchain-database" will be immutable, and secure from tampering? Cool

To persist/save state  Wink

Let's stick to the hyperledger example.
Here, immutability is ensured by the so-called ordering service.


Is Hyperledger a blockchain? Is then there a need for a blockchain, if it's centralized? Took take it further, is Bitcointalk forum then a blockchain? I'm confused.


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September 20, 2019, 10:21:42 AM
Last edit: September 20, 2019, 10:33:00 AM by franky1
 #27

An append-only database. Why would companies want that, and if they truly did, how can they assure that their "private-centralized-blockchain-database" will be immutable, and secure from tampering? Cool
Quote
you have been very open to your subtle hints that you hate blockchain and you think people need to move off blockchains to either LN or liquid for btc, as well as saying blockchains wont work for other uses in different sectors. but you really need to, and i mean this sincerely, really need to do some dang research.

Roll Eyes Troll harder.
Quote
i understand you have limited technical knowledge, i understand your learning from a certain group of people with certain intentions. but it really is time you done some out of the box thinking.
I'm the stupid one. You are the person that newbies should listen to. I hope they do, and learn, the hard way.
Quote
imagine a central database, and then needing to back it up periodically. and because its central. have IT guys, auditors, security professionals monitoring the central server to ensure tampering dos not occur.
imagine a distributed database, which by its own design backs up each other (if one goes down others are available) where by design individuals cant tamper with it, it doesnt ned it, security, auditors either.
How can tampering then be assured impossible? What "proof" can they show its users that it's not "tamperable". Cool
Is there such a "database"?

1. companies do need append only databases
take your car log book. you think it only lists you as the owner.. ever.. no. the car registration authority appends each new owner when the ownership changes. just because the latest append shows as you, doesnt mean that no other entries exist.
same with land registry and many other things.
also going into financials. like banks. ever thought about bank statements and how your only comparison of a blockchain being bitcoin is the same thing. where a wallet logs all payment history of an address/account
ever thought that a bank balance is just a calculation done after adding/subtracting the total append only payments in and out of an account... think about it how else do you think they get to the 'current balance' if they are not taking previous ins and out into account

so "why would a company want append only." .. simple. to keep a log to check everything audits correctly
so "how to prove 'private-centralized-blockchain-database' is immutable".. simple. distribute it and check the hashes.. you really need to understand how blockchain security works.. (hint: do research)

2. by you saying blockchains cant scale, blockchains dont work, no one wants blockchains.. yes you say those things. you have been very very visible in your hatred of the technology. your only interest is the price of the asset and the desire to centralise it under a certain groups control. i would feel sorry for anyone that tried learning things from you not only for your motives, but also for your own lack of independant research

3. you are so unprepared to understand blockchains that you cant even recognise that blockchains exist even when one is being described to you. here il describe it again:
"imagine a distributed database, which by its own design backs up each other (if one goes down others are available) where by design individuals cant tamper with it, it doesnt need IT guys, security, auditors either."
also if you dont think these databases exist. then you are saying bitcoin is a figment of peoples imagination!?!
i think its really time you start doing your research. not just about what blockchains are/do/how they work. but also about general life stuff like companies that can use such, are using such and will use such.

have a nice day, but try not to spend it just replying. spend some time doing research first. it will help you

i do have to laugh that you honestly thought such databases didnt exist.. that made my day

I DO NOT TRADE OR ACT AS ESCROW ON THIS FORUM EVER.
Please do your own research & respect what is written here as both opinion & information gleaned from experience. many people replying with insults but no on-topic content substance, automatically are 'facepalmed' and yawned at
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September 20, 2019, 10:48:32 AM
 #28

alot of people think that blockchains wont work for companies because people believe a blockchain has to not only be a single database. but also has to include all the data.

imagine a blockchain where each block doesnt contain whole image files. but just the file hash of an image file, where by the image is stored separately.

people can then validate the images are authentic/not been edited because they can see if the hashes match the ones in the blockchain.
imagine its use for patent registration. the patent office doesnt need to store all the patent wording/images in the database, just the file hash of the submission. and then because the file hash is in a blockchain. its then timestamped and logged. anyone trying to edit a patent file ends up with a different file hash. which when comparing it to the blockchain. wont match and people can see that its a false/edited document

this then allows everyone to have a distributed database, without the worry of having to store millions of peoples files aswell, especially if they dont personally need to know about others files content

same goes for things like pharmacy prescriptions. a blockchain does not need to store the patients name, address, social security, doctors details, and medication+amounts. it just needs to store a hash of the data. which the pharmacy can then check actually exists in a blockchain. those know its a real prescription and not one created by a druggy using photoshop

I DO NOT TRADE OR ACT AS ESCROW ON THIS FORUM EVER.
Please do your own research & respect what is written here as both opinion & information gleaned from experience. many people replying with insults but no on-topic content substance, automatically are 'facepalmed' and yawned at
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September 20, 2019, 11:41:42 AM
 #29

An append-only database. Why would companies want that, and if they truly did, how can they assure that their "private-centralized-blockchain-database" will be immutable, and secure from tampering? Cool
Quote
you have been very open to your subtle hints that you hate blockchain and you think people need to move off blockchains to either LN or liquid for btc, as well as saying blockchains wont work for other uses in different sectors. but you really need to, and i mean this sincerely, really need to do some dang research.

Roll Eyes Troll harder.
Quote
i understand you have limited technical knowledge, i understand your learning from a certain group of people with certain intentions. but it really is time you done some out of the box thinking.
I'm the stupid one. You are the person that newbies should listen to. I hope they do, and learn, the hard way.
Quote
imagine a central database, and then needing to back it up periodically. and because its central. have IT guys, auditors, security professionals monitoring the central server to ensure tampering dos not occur.
imagine a distributed database, which by its own design backs up each other (if one goes down others are available) where by design individuals cant tamper with it, it doesnt ned it, security, auditors either.
How can tampering then be assured impossible? What "proof" can they show its users that it's not "tamperable". Cool
Is there such a "database"?

1. companies do need append only databases
take your car log book. you think it only lists you as the owner.. ever.. no. the car registration authority appends each new owner when the ownership changes. just because the latest append shows as you, doesnt mean that no other entries exist.
same with land registry and many other things.
also going into financials. like banks. ever thought about bank statements and how your only comparison of a blockchain being bitcoin is the same thing. where a wallet logs all payment history of an address/account
ever thought that a bank balance is just a calculation done after adding/subtracting the total append only payments in and out of an account... think about it how else do you think they get to the 'current balance' if they are not taking previous ins and out into account

so "why would a company want append only." .. simple. to keep a log to check everything audits correctly
so "how to prove 'private-centralized-blockchain-database' is immutable".. simple. distribute it and check the hashes.. you really need to understand how blockchain security works.. (hint: do research)


Then the question, "Does the database have to be a blockchain?", or do those companies want a blockchain for the buzzword?

Quote

2. by you saying blockchains cant scale, blockchains dont work, no one wants blockchains.. yes you say those things. you have been very very visible in your hatred of the technology. your only interest is the price of the asset and the desire to centralise it under a certain groups control. i would feel sorry for anyone that tried learning things from you not only for your motives, but also for your own lack of independant research


Did I say it? No. A "blockchain" implemented correctly is censorship-resistant, trustless, and decentralized.

Quote

3. you are so unprepared to understand blockchains that you cant even recognise that blockchains exist even when one is being described to you. here il describe it again:
"imagine a distributed database, which by its own design backs up each other (if one goes down others are available) where by design individuals cant tamper with it, it doesnt need IT guys, security, auditors either."
also if you dont think these databases exist. then you are saying bitcoin is a figment of peoples imagination!?!
i think its really time you start doing your research. not just about what blockchains are/do/how they work. but also about general life stuff like companies that can use such, are using such and will use such.

have a nice day, but try not to spend it just replying. spend some time doing research first. it will help you

i do have to laugh that you honestly thought such databases didnt exist.. that made my day


I'm very unprepared, yes. Newbies, listen to franky1, he is the most prepared.

But, does it have to be a blockchain? Cool


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September 20, 2019, 11:42:10 AM
Merited by cr1776 (1)
 #30

alot of people think that blockchains wont work for companies because people believe a blockchain has to not only be a single database. but also has to include all the data.

imagine a blockchain where each block doesnt contain whole image files. but just the file hash of an image file, where by the image is stored separately.

people can then validate the images are authentic/not been edited because they can see if the hashes match the ones in the blockchain.
imagine its use for patent registration. the patent office doesnt need to store all the patent wording/images in the database, just the file hash of the submission. and then because the file hash is in a blockchain. its then timestamped and logged. anyone trying to edit a patent file ends up with a different file hash. which when comparing it to the blockchain. wont match and people can see that its a false/edited document

this then allows everyone to have a distributed database, without the worry of having to store millions of peoples files aswell, especially if they dont personally need to know about others files content

same goes for things like pharmacy prescriptions. a blockchain does not need to store the patients name, address, social security, doctors details, and medication+amounts. it just needs to store a hash of the data. which the pharmacy can then check actually exists in a blockchain. those know its a real prescription and not one created by a druggy using photoshop

This use case (ie. timestamped verification) has been widely discussed for years and to some extend even been put to practice -- on public permissionless blockchains.

What about private permissioned blockchains though?

How is a private permissioned blockchain run by private company nodes, editable only by company employees more trustworthy than the same set up using classical databases and access control? Same for private permissioned blockchains run by government entities on government nodes, editable only by government employees. Where's the benefit in this case?

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September 20, 2019, 12:03:36 PM
 #31

Where's the benefit in this case?

If we get back to the flow chart again, the point is that e.g. different companies work together (write) that do not trust each other.

That's the thing though, so far it seems like permissioned blockchains don't provide consensus, immutability and double-spending protection either. They provide the illusion of such.

You have a consortium consensus in permissioned blockchains, where a Tx is sent to pre-selected nodes and the consensus validates the Tx.

In a permissioned setting rewriting history becomes a mere executive decision.

That's true.

Don't get me wrong. I'm very curious to see where decentralized consensus can lead us beyond currencies. But I think the use cases in non-public and permissioned settings are extremely limited.

Let's just agree that the use cases of a permissioned blockchain are really very limited and there are enough alternatives available.  Smiley

Is Hyperledger a blockchain? Is then there a need for a blockchain, if it's centralized?

Hyperledger would be the Project and Hyperledger Fabric for example one of the blockchain frameworks.

Took take it further, is Bitcointalk forum then a blockchain? I'm confused.

Is it a distributed chain of data linked using cryptography?  Tongue

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September 20, 2019, 01:47:41 PM
 #32

Where's the benefit in this case?

If we get back to the flow chart again, the point is that e.g. different companies work together (write) that do not trust each other.


That was not a general question but rather referring to the concrete examples mentioned above:

people can then validate the images are authentic/not been edited because they can see if the hashes match the ones in the blockchain.

the patent office doesnt need to store all the patent wording/images in the database, just the file hash of the submission. and then because the file hash is in a blockchain. its then timestamped and logged.

a blockchain does not need to store the patients name, address, social security, doctors details, and medication+amounts. it just needs to store a hash of the data. which the pharmacy can then check actually exists in a blockchain.

I'm questioning the applicability of private permissioned blockchains for these specific use cases.

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September 20, 2019, 06:34:39 PM
Last edit: September 20, 2019, 07:18:27 PM by franky1
 #33

This use case (ie. timestamped verification) has been widely discussed for years and to some extend even been put to practice -- on public permissionless blockchains.

What about private permissioned blockchains though?

How is a private permissioned blockchain run by private company nodes, editable only by company employees more trustworthy than the same set up using classical databases and access control? Same for private permissioned blockchains run by government entities on government nodes, editable only by government employees. Where's the benefit in this case?

editable?.. you must by now understand blockchains are append only, i mean come on its not your first day on the scene
first understand distributed blockchains.

even in a system where all the nodes are run on a companies intranet(internal network) its still not possible for a single entity to edit the block/data. it would require all the employee's to collaberate.
hense the need for distribution of the data. and the need to then secure the distribution by having a simple verification procedure which blockchains offer by default(hashes)
yes in a central stored single database on a central server can b edited easily.
yes in a distributed single database without any security checks can be edited easily.
but to change data on all locations simultaneously whereby each location can check its peers for such attempts is something that single individual cant do.. plus it dosnt require IT guys, security teams, auditors to keep a check on it. as a blockchain is self checking/auditing

alot of people think centralised is not able to be distributed and decentralised cant be controlled by a certain group
hense if you get off the buzzword of 'centralised/decentralised' and think about blockchain distribution instead, you will soon learn what blockchains are really about, whether it be centralised or decentralised

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September 20, 2019, 08:33:08 PM
Merited by cr1776 (1)
 #34

This use case (ie. timestamped verification) has been widely discussed for years and to some extend even been put to practice -- on public permissionless blockchains.

What about private permissioned blockchains though?

How is a private permissioned blockchain run by private company nodes, editable only by company employees more trustworthy than the same set up using classical databases and access control? Same for private permissioned blockchains run by government entities on government nodes, editable only by government employees. Where's the benefit in this case?

editable?.. you must by now understand blockchains are append only, i mean come on its not your first day on the scene
first understand distributed blockchains.

"Editing" as in "writing data to" (eg. registering and timestamping the image hash, patent, prescription as per the use cases mentioned above).


Speaking of editable:

even in a system where all the nodes are run on a companies intranet(internal network) its still not possible for a single entity to edit the block/data. it would require all the employee's to collaberate.


Like I said:

In a permissioned setting rewriting history becomes a mere executive decision.

Or put differently: If the CEO of a company (or director of a government organization) tells their IT to roll back the private blockchain, that's exactly what they'll do: Collaborate to change supposedly immutable data.

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September 20, 2019, 09:30:41 PM
 #35

This use case (ie. timestamped verification) has been widely discussed for years and to some extend even been put to practice -- on public permissionless blockchains.
What about private permissioned blockchains though?
How is a private permissioned blockchain run by private company nodes, editable only by company employees more trustworthy than the same set up using classical databases and access control? Same for private permissioned blockchains run by government entities on government nodes, editable only by government employees. Where's the benefit in this case?
editable?.. you must by now understand blockchains are append only, i mean come on its not your first day on the scene
first understand distributed blockchains.
"Editing" as in "writing data to" (eg. registering and timestamping the image hash, patent, prescription as per the use cases mentioned above).
Speaking of editable:
even in a system where all the nodes are run on a companies intranet(internal network) its still not possible for a single entity to edit the block/data. it would require all the employee's to collaberate.
Like I said:
In a permissioned setting rewriting history becomes a mere executive decision.
Or put differently: If the CEO of a company (or director of a government organization) tells their IT to roll back the private blockchain, that's exactly what they'll do: Collaborate to change supposedly immutable data.

your missing a few basic points here.
1. imagine you had blocks 1,2,3,4,5,6,7,8,9,10.. in blockchain you cant just edit an entry in block 5. without it affecting 6,7,8,9,10 and thus other nodes pick up that one version doesnt match the majority
as thats called editing. what you are describing is a complete history destruction and rewrite.. theres a big difference. blockchains dont allow editing

2. for a complete rewrite would require the whole node set to comply. by which they obviously havnt bothered making a true blockchain with all the checks to prevent it by default

3. if you dont understand the whole concept of the chained hashes, the distributed verification, checkpoints and such, then its time you looked into blockchains

4. i see the purpose of blockchains in different industries done so, so that temp employee at random bank branch cant just add a few zeros to the end of his balance and then run off to a tropical island,, rich.

5. an im pretty sure if a company wants a secure data system then they would have systems inplace to make sure it actually a blockchain and not some backdoor filled crap that can erase data from all systems at the same time.

even things like handing a checkpoint hash periodically to some attorney who can, if any data integrity quieries arise, can check to see if its true or not. which is backed up by some contract that fines the CEO personally if such event arises

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September 25, 2019, 05:52:11 AM
 #36

franky1, I understand your side of the debate. But do distributed systems' databases have to be structured like a blockchain?

Because "distributed database" systems aren't something new.


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September 27, 2019, 04:40:37 PM
Last edit: September 27, 2019, 05:00:09 PM by franky1
 #37

franky1, I understand your side of the debate. But do distributed systems' databases have to be structured like a blockchain?

Because "distributed database" systems aren't something new.

of course they are not new... dang.. research harder.
the whole point of blockchain is not about the distributed database. its not about the contents and rules of validating each pice of data insid a block/database
 its about while having a distributed database, checking that everyone has the same thing. and done so very simply.
by announcing the latest block hash, which if all other locations have the same hash. means everyone has the exact same data. so simple

block hashes have other uses too. such as if hashes dont match. checking the previous hash, and then the previous hash to the point where they do match. and then coming back one block where it didnt match, to then see whats been changed.
makes it childs play to find out who or whats been changed without having to check every entry inside every block

however if it was just some single file database with a single hash that changes at a periodic time(traditional database). then the only thing a database would have is the latest EDIT and unable to see when things started to change

many companies keep backups of previous instances of a traditional database for that solution. but trying to compare each instance and find out when a change occured is harder and more of a manual task. plus the storage of such is much higher

imagine the data required for every 10minute instance change of the 'bank balance'/UTXOset, a back up was done. yep backing up bitcoins utxoset each time it changes is 3gb extra, which needs storing every 10 minutes. this is far worse if you add up 10 years of it.
3gb x 500,000 instances =15petabytes
yep if bitcoin didnt have a blockchain and just had the utxo set and auditors want a way to check the history and find out when changes happened on certain instances. it would require 15 petabytes and alot of manual checking.. yet blockchain does it all and at a cost after 10 years of under 200gb.. while by default offering all the easy validation, auditing and whatnot built in

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October 03, 2019, 08:26:31 AM
 #38

franky1, I understand your side of the debate. But do distributed systems' databases have to be structured like a blockchain?

Because "distributed database" systems aren't something new.

of course they are not new... dang.. research harder.
the whole point of blockchain is not about the distributed database. its not about the contents and rules of validating each pice of data insid a block/database
 its about while having a distributed database, checking that everyone has the same thing. and done so very simply.
by announcing the latest block hash, which if all other locations have the same hash. means everyone has the exact same data. so simple

block hashes have other uses too. such as if hashes dont match. checking the previous hash, and then the previous hash to the point where they do match. and then coming back one block where it didnt match, to then see whats been changed.
makes it childs play to find out who or whats been changed without having to check every entry inside every block

however if it was just some single file database with a single hash that changes at a periodic time(traditional database). then the only thing a database would have is the latest EDIT and unable to see when things started to change

many companies keep backups of previous instances of a traditional database for that solution. but trying to compare each instance and find out when a change occured is harder and more of a manual task. plus the storage of such is much higher

imagine the data required for every 10minute instance change of the 'bank balance'/UTXOset, a back up was done. yep backing up bitcoins utxoset each time it changes is 3gb extra, which needs storing every 10 minutes. this is far worse if you add up 10 years of it.
3gb x 500,000 instances =15petabytes
yep if bitcoin didnt have a blockchain and just had the utxo set and auditors want a way to check the history and find out when changes happened on certain instances. it would require 15 petabytes and alot of manual checking.. yet blockchain does it all and at a cost after 10 years of under 200gb.. while by default offering all the easy validation, auditing and whatnot built in

You didn't answer the question.

Do distributed systems' databases have to structured like a "blockchain", or not? Plus do they really need to be "append-only"? But, in the context of the topic, they're centralized.


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October 04, 2019, 06:38:49 AM
Last edit: October 04, 2019, 06:50:05 AM by franky1
 #39

You didn't answer the question.

Do distributed systems' databases have to structured like a "blockchain", or not? Plus do they really need to be "append-only"? But, in the context of the topic, they're centralized.

thre is no law OFCOURSE to say that people need to convert to blockchains. so thats why i avoided answering your obvious question.
but when databases are append orientated rather than edit orientated, and when databases are distributed and need a QUCIK way to compare versions with each other without the checks themselves taking up all the bandwidth/cpu time. then blockchains have many advantages

in the future there will b hybrid database structures that dont quite follow the full definition of a blockchain. but take aspects of the distributed security and check mechanisms and apply them to traditional database models

people are already doing this with things like sharding and other concepts. where its just not one single blockchain containing everyones data but just a summary chain that each region can use to authenticate another region passes certain tests
EG imagine the international fiat reserve(international monetary fund(IMF)) that has the movements of countries total holdings but not listing every bank holders movments within those countries.

people think blockchains have to continuously go on forever.
what people dont realise is blockchains can b invented for just a 365 day use. take the nations tax account. able to validate which government departments and public grant establishments the funds get moved to. and at the end of the year. its summerised and any excess is moved to a new blockchain. where via another blockchain that just summerises the in-out of each year-end/new year budget

but back to your question.
its like you are saying should all fruit be converted to bananas and all fruit should be a curved at a certain angle, yellow with no black spots. as a weird way to then say that bananas are the devils fruit and you think bananas should not be used/accepted in any way, shape or form
because im getting a real big vibe that you simply hate blockchains.. or just yet to understand them even after a couple years oppertunity to research them

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October 09, 2019, 07:04:53 AM
 #40

You didn't answer the question.

Do distributed systems' databases have to structured like a "blockchain", or not? Plus do they really need to be "append-only"? But, in the context of the topic, they're centralized.

thre is no law OFCOURSE to say that people need to convert to blockchains. so thats why i avoided answering your obvious question.


I'm only trying to learn why it has to be "a blockchain", if it's private and centralized, and that a database would be more effective and efficient.

Is a centralized blockchain more efficient than an append only database? Because everyone wants to ride the blockchain bandwagon.



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