/biz/ - Business & Finance

https://www.forbes.com/sites/robertanzalone/2019/12/25/european-central-bank-announces-new-dlt-proof-of-concept-called-eurochain/
>Based on the R3’s Corda platform
>Scalability of the prototype was for example not analyzed.

https://docs.corda.net/key-concepts-notaries.html
>Corda has “pluggable” consensus, allowing notary clusters to choose a consensus algorithm based on their requirements in terms of privacy, scalability, legal-system compatibility and algorithmic agility.

https://www.hedera.com/hh-consensus-service-whitepaper.pdf
>The Consensus Service proof-of-concept use case is providing custom Hyperledger Fabric networks with decentralized consensus on the validity and order of blockchain transactions without the need to configure a RAFT1 or Kafka2 ordering service (a consensus 'plugin')

https://www.culedger.com/ABOUT-US/Partners
>Hedera working with R3 and IBM on CULedger

https://github.com/hashgraph
>hedera-hcs-corda
>fabric-hcs

To sum it up, both R3 Corda and Hyperledger Fabric are using HCS (Hedera consensus service) as the consensus layer, since it is far more scalable than any other algorithm. There's a good chance CBDCs will be built on HH. This is the One, the chosen coin, the golden bull to lift the neets out of poverty