OriginStamp: A blockchain-backed system for decentralized trusted timestamping

Abstract

Currently, timestamps are certified by central timestamping authorities, which have disadvantages of centralization. The concept of the decentralized trusted timestamping (DTT) was developed by Gipp et al. to address these drawbacks. The paper provides insights into the architecture and implementation of a decentralized timestamp service taking the integration of multiple blockchain types into account. Furthermore, the components are introduced and the versatile application scenarios are presented. A future direction of research is the evaluation of blockchain technology and their suitability for timestamping.

A Review of Blockchain based Educational Projects

“…On 10th August 2017, Sony Corporation and Sony global education announced that we would form such a system on which blockchain technology will be applied specifically in the Education system. In 2018, Sony will start to establish its service offerings that will start with the global math challenge whose purpose will be to bring 150000 participants from all over the world cooperatively [28], [16], [17], [37], [38].…”

“…Origin-Stamp: Origin-Stamp is secure time-Stamping for ensuring the security of digital data. It determines the eccentric fingerprints of the client data and keeps the fingerprints permanently in the Bitcoin blockchain technology [38].…”

Ensuring Genuineness for Selectively Disclosed Confidential Data Using Distributed Ledgers: Applications to Rail Wayside Monitoring

“…Based on this property, there are already frameworks [9], concepts [10] and web services 2 for ensuring data integrity using distributed ledger technology. These concepts can also be applied on databases as shown in [11].…”

“…To verify a specific transaction within this list, the transaction itself and certain nodes from the Merkle Tree are sufficient for proving the integrity and validity of this specific transaction. In OriginStamp [10], Merkle Trees are used to combine multiple entries before they got added to the blockchain to reduce transaction fees.…”

“…2 USD, of Ethereum it is 0.10 USD. Using the idea of OriginStamp [10] of collecting several measurement hashes and publishing a hash of these hashes once per day, costs can be significantly reduced. An alternative would be to use a transaction fee-free support ledger such as IOTA.…”