SignServer – Open source, PKI-based signing software to sign code, documents, timestamps and more.

OpenTimestamps Calendar Server

Command output timestamper

A TimeStamp Responder written in C#, which supports both Authenticode and RFC3161

ACL 2018: Dating Documents using Graph Convolution Networks

Multi-level Certificate Authority Management tool, front-end tool to OpenSSL, written in bash shell.

The official Apostille Typescript repository

Timestamp and colorize the stdout and stderr streams of CLI programs.

plget is a tool used to measure latency packets spent in network stack, NIC driver and on the wire, trace interpacket gap, based as on h/w as on sw timestamping, as for rx as for tx path, measure speed and more ...

Prototype smart contract for timestamping service on EOSIO blockchain

Go client for the OriginStamp API

Timestamping service over Bitcoin blockchain and prove of ownership by ERC-721 standard and Ethereum database implementation

Open Source solution to generate everlasting blockchain evidence that a file exists at a certain date

Apostille - A blockchain notarization and timestamping solution with transferable, updatable, branded, and conjointly owned notarizations.

Timestamp your WordPress content into the blockchain to empower your content authenticity and increase user trust.

The Bitnation Jurisdiction Public Notary DApp

EMNLP 2018: AD3: Attentive Deep Document Dater

TOKEN TTS (Trusted digital TimeStamping Service) provides anonymous, tamper-proof time stamps for any digital content as a Proof of Existence of a given document or transaction in a given time in a given place

timestamping-server-with-digicert-freetsa

402 Senior Project Laboratory - blockchain-powered timestamping and certification platform allowing you to prove the existence, integrity and ownership of all your documents.