Oracle launched its built-in cloud service on the open source project Hyperledger Fabric at Oracle OpenWorld and about a year later, IBM announced the blockchain service (Blockchain as a Service - BaaS) based on its own Hyperledger.
Another rival in the BaaS market is Huawei when it announced that Blockchain Service was built based on Hyperledger at the Shenzhen event. Along with other Chinese companies Baidu and Tencent, they also join the blockchain platform.
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