Knowledge Base
Browse the concepts behind Truestamp. Follow the links between concepts, or search across everything.
Tagged: merkle-tree
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Library
Carbon Dating the Internet Archive with OpenTimestamps
Peter Todd's primary-source account (May 2017) of timestamping about 750 million Internet Archive files with OpenTimestamps: SHA1 digests read from the archive's own metadata, aggregated through a calendar server into a Merkle tree, and committed in a single Bitcoin transaction.
Design of a Secure Timestamping Service with Minimal Trust Requirement
1999 UCL Crypto Group paper (Massias, Serret Avila, Quisquater) on the Belgian TIMESEC timestamping service: round-based Merkle trees, hash-linked round values, and newspaper publication to minimize trust in the authority.
Linked Timestamping (Wikipedia)
Wikipedia overview of linked timestamping: hash chains and Merkle trees that link time-stamps into a tamper-evident order, avoiding private keys, with history, standards, and blockchain publication.
Timestamping with OpenTimestamps, FOSDEM 2024
FOSDEM 2024 slide deck on OpenTimestamps: a decentralized, trust-minimized protocol that proves data existed at a point in time by Merkle-aggregating hashes through calendar servers and committing to the Bitcoin blockchain.