1. If the central database is proprietary then it is enforced (usually by a major retailer ie Walmart drives all sorts of RFID supply chain requirements for its suppliers. If blockchains come in this is likely how)
1.a. But which other retailer will sign up to walmart's versions ? So it is hard for all suppliers to sign up to the same standards
2. Open standards make it easier for anyone to write apps to join the chain.
3. it's not at all clear how this is better I will admit beyond "decentralised" and "open". But those are excellent places to start.
You can sign entries but unless you have each subsequent entry build on what came before like in a blockchain, entries can be removed entirely and no one will know. There is a reason companies like DHL are interested in such things.
https://www.dhl.com/au-en/home/insights-and-innovation/insig...
Example: Our product is sourced from a company and this providence is on the blockchain. It comes to light they employ slave labour and we'd rather cover it up. How do we alter these original transactions without the evidence being in plain sight?
Thank you
The idea is that everytime sweat shop X finishes sewing sequins on a dress, they can scan the RFID tag on the dress with their smartphone, and the ledger gets updated, and then Walmart can prepare for that dress, the shipping company can print out labels etc.
Its a good idea.
Industries are supposed to work this out, create their own cheaper blockchains that just need some sort of simple KYC to get started, then its as cheap as email to add your little bit to the supply chain.
I dont know of any successful implementations
Edit: no blockchain will solve the grey market problems. Everything will have to be made genuninely on the chain. Which starts to lead to probelsm with if you cannot get permission to write to the chain ... etc etc