which blockchain was used and what was the amount of transaction? please elaborate
HSBC used Corda or Corda Platform as the basis from the blockchain startup r3 (more information can be found
here). Corda is to serve as an open source platform that will make partnerships like this possible. Working closely with the partners, to create a diverse ecosystem of interoperable applications within one platform, all providing unique solutions to the challenges facing financial market participants today.
This is big news. Although this is not necessarily a big move for crypto because they made use of different blockchain solution (non-crypto), it is still good for crypto in-general. If anything, it goes to further validate that blockchain is indeed extremely useful for transactions and the same could be applied to cryptocurrencies.