mcard-js

A JavaScript implementation of MCard - A data model for persistently storing content with cryptographic hashing and timestamping

v1.0.1 URL: https://unpkg.com/mcard-js@1.0.1/src/index.js

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mcard data-model cryptography hashing timestamping persistence storage

stampery

Stampery API for NodeJS: seamlessly integrate the blockchain-powered, industrial-scale certification platform into your NodeJS apps.

v6.1.0 URL: https://unpkg.com/stampery@6.1.0/dist/stampery.min.js

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stampery blockchain timestamping certification notary bitcoin ethereum

@cronstamp/clientlib

Client library for cronstamp, a blockchain-based document timestamping and verification service.

v0.5.3 URL: https://unpkg.com/@cronstamp/clientlib@0.5.3/dist/main.js

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blockchain timestamping verification tamper-proof

originstamp-client-fetch

TypeScript Fetch client for the OriginStamp service

v2.0.3 URL: https://unpkg.com/originstamp-client-fetch@2.0.3/dist/index.js

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originstamp timestamping typescript fetch

@tzstamp/cli

Tezos timestamping utility

v0.3.4 URL: https://unpkg.com/@tzstamp/cli@0.3.4/bin/index.js

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timestamp timestamping tezos cli