Ledger Databases and Managed Blockchain in the Cloud
summary
Explains how Amazon QLDB provides a serverless, centralised ledger with an immutable cryptographically verifiable journal (SHA‑256 hashes chained across blocks), stores data in a document-backed fashion queried with PartiQL, replicates across three availability zones, and demonstrates a Python flow that generates and verifies digests plus a BMW Digital Passport use case. Describes Managed Blockchain for consortiums, supporting Hyperledger Fabric and Ethereum, invite‑based membership, per‑member node/storage billing, consensus for shared ledgers and private channel transactions.
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chapters (7)
- 0:00Start
- 1:16What would a good developer do?
- 3:36Centralized trust: ledger databases
- 7:55Amazon Quantum Ledger Database (Amazon QLDB)
- 9:27Challenges with current approaches for building ledger and audit capability
- 11:32Cryptographic verification Hash chaining using sha-256
- 27:53Hyperledger Fabric and Ethereum benefits
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