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15/11
where to start? pretty overwhelmed with this whole blockchain thing. Not really sure where this project is going. At the moment what I understand is that I'm looking to a more open version of a closed blockchain. One which is initiated by a central authority e.g., the government, who then allows other parties to join. In the example with the organic supply wh- would each company who wanted to verify that their produce is organic, "join" a central blockchain. From the beginning of the (supply) chain to the end there are many different companies involved. So would the journey of the item be tracked on a blockchain? Maybe not neccessarily the journey but maybe throughout its route, each thing (or an agreement to provide that thing) that is need to prove an item's "organicness" is added to the chain, then when it reaches the end the chain is discarded? Surely that's not right. Does a blockchain necessarily need to represent a *sequence*? Yeah I think so. But a currency like bitcoin is an infinite sequence, whereas an items journey is finite. ==What does a blockchain used in a supply chain context represent?==
where to start? pretty overwhelmed with this whole blockchain thing. Not really sure where this project is going. At the moment what I understand is that I'm looking to a more open version of a closed blockchain. One which is initiated by a central authority e.g., the government, who then allows other parties to join. In the example with the organic supply wh- would each company who wanted to verify that their produce is organic, "join" a central blockchain. From the beginning of the (supply) chain to the end there are many different companies involved. So would the journey of the item be tracked on a blockchain? Maybe not neccessarily the journey but maybe throughout its route, each thing (or an agreement to provide that thing) that is need to prove an item's "organicness" is added to the chain, then when it reaches the end the chain is discarded? Surely that's not right. Does a blockchain necessarily need to represent a *sequence*? Yeah I think so. But a currency like bitcoin is an infinite sequence, whereas an items journey is finite. What does a blockchain used in a supply chain context represent?
From the abstract - "closed blockchains are considered by some to be insufficiently decentralised.This summer project aims to prototype a compromise: a closed blockchain system that encodes voting rules about self-governance, so that closed blockchain technology can be used in a more open manner"
@ -50,7 +50,7 @@ once a shipment is delivered to a consumer is its history moved to an archive? I
And how is this chain governed. who is the central authority, who decides who can join and leave, how are participants verified as being who they are?
"a closed blockchain system that encodes voting rules about self-governance" — so each of the participating parties vote about who can join. Is governance in this sense the same as within an open blockchain? within an open blockchain the goverance includes decisions about update and changes to the code of the blockchain. what is governance within a closed blockchain. Is the code closed source? is development distributed between participating parties, or one central group? Why a participant of one of these chain want to fork? what does that even mean?
"a closed blockchain system that encodes voting rules about self-governance" — so each of the participating parties vote about who can join. Is governance in this sense the same as within an open blockchain? within an open blockchain the goverance includes decisions about update and changes to the code of the blockchain. ==what is governance within a closed blockchain==. Is the code closed source? is development distributed between participating parties, or one central group? ==Why a participant of one of these chain want to fork?== what does that even mean?
what are public vs private permissioned blockchains
@ -60,4 +60,6 @@ I think I am getting somewhere.
Now what do I do? Still many unanswered questions. I dont understand the scope of a blockchain within a supply chain context.
https://www.ibm.com/blockchain-supply-chain There are clearly many different blockchains. So how do these work together? using the example of the organic produce. A large store like paknsave has an agreement with a farm to but their supposed organic produce.
https://www.ibm.com/blockchain-supply-chain There are clearly many different blockchains. So how do these work together? using the example of the organic produce. A large store like paknsave has an agreement with a farm to but their supposed organic produce. paknsave has created a blockchain where suppliers like these can join and provide relevant information about their product, which pak n save can see.
or. the government creates some regulations for organic items, and a blockchain. then suppliers can join the blockchain and add their data to it, and retailers like pak n save (maybe also consumers) can also join and view the relevant information. maybe these regulations are trusted internationally so local growers exporting produce dont have to comply to the regulations of multiple governments. so where do the intermediaries such as shipping companies and various depots fit in. are they also participants in this blockchain