Forum Discussion

Former Employee

Jun 21, 2018

How to get the data from the blockchain?

Hi. I've successfully set up one application on Azure Blockchain Workbench following the documents. However, when I edit data in the SQL database, the DLT watcher of the Web app shows the changed r...

Former Employee

Jun 22, 2018

Thanks a lot for your helpful reply. Since neither administrators nor members of the application have access to data stored in the blockchain, does it mean that data are absolutely safe? In other words, how could Azure Blockchain Workbench guarantee that the distributed ledger residing on VMs cannot be changed?

Stefano Tempesta

MVP

Jun 24, 2018

I guess there is no such guarantee in place, unless access to the replicated storage is strictly write-only and read-only (no updates/deletes) as in the recently announced Azure Storage.

Cheng Peng
Former Employee
Jun 25, 2018
Thanks. I think the real data of workbenches are stored in a public blockchain, instead of private ones for each. I can see from the DB that the blockchain numbers of my several contract actions vary from 183 to 28441. If so, it is safe just like Bitcoin so far.

However, I still have two questions. Since Azure Blockchain Workbench utilizes the proof-of-work strategy, who actually mines the blocks?

Besides, I wonder if Azure Blockchain Workbench has a blockchain explorer to query the real data stored in the blockchain, which is just like that of Ethereum (the Log Analytics shows only Highest Reported Block and Avg Block Time).
- Zeyad Rajabi
  Former Employee
  Jun 25, 2018
  Workbench actually uses Ethereum PoA (Parity) and not PoW. In terms of exploring the blockchain, you can open up the RPC endpoint and connect an explorer directly to the blockchain.
  - Stefano Tempesta
    MVP
    Jun 25, 2018
    Would be great to get some documentation on how to open the RPC endpoint, please.
    It looks like the RPC endpoint is not accessible.
    Thanks

Resources