Core and web app for Proof of Existence - the original blockchain notary service
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Aug 15, 2025 - JavaScript
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proof-of-existence
Here are 40 public repositories matching this topic...
Decentralized Data Sharing Network - A Peer-to-peer, censorship-resistant, and a privacy-focused data sharing network
search-engine cryptography privacy bitcoin storage-engine peer-to-peer ethereum decentralized blockchain p2p file-sharing cryptocurrency wallet proof-of-stake libp2p download-manager blockchain-technology proof-of-existence censorship-resistance proof-of-transfer
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Nov 1, 2024 - Go
Smart contract to prove the existence of documents
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Nov 14, 2017 - JavaScript
precedence brings secure blockchain-powered traceability features to your already existing legacy information system
security blockchain proof precedence traceability proof-of-existence existence proof-of-ownership proof-of-process
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Apr 7, 2023 - JavaScript
PrivateStamp: a private proof-of-existence DApp. Prove that you've had a file at a certain time without compromising your privacy.
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Mar 3, 2023 - Vue
The official Apostille Typescript repository
typescript blockchain timestamp certification poe nem blockchain-technology certificate-generation proof-of-existence nem-blockchain timestamping nem-library proof-of-authenticity proof-of-ownership notarization
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Dec 8, 2022 - TypeScript
Application d'authentification de document PDF, utilisant la chaîne de blocs Ethereum.
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May 16, 2022 - CSS
Wudder's Python SDK
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Nov 29, 2021 - Python
Frontend and Backend parts of the documents stamping service
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Mar 11, 2026 - TypeScript
Une application d'horodatage de documents PDF, utilisant la chaîne de blocs Ethereum.
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Mar 22, 2023 - CSS
The front-end part of stamp.gridcoin.club project
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Jan 11, 2022 - TypeScript
Wudder's JavaScript SDK
npm node sdk yarn js blockchain proof trace timestamp js-sdk traceability proof-of-existence supplychain wudder
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Jan 7, 2023 - JavaScript
Replication analysis of Irving & Holden 2016
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May 22, 2017 - Jupyter Notebook
An implementation of Gregory Maxwell merkle tree approach to prove Bitcoin liabilities, in Scala.
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Mar 15, 2018 - Scala
Ce repository est le compagnon d'un article LinkedIn en lien ici dessous.
blockchain proof-of-stake proof-of-authority proof-of-work consensus-algorithm proof-of-existence blockchain-demos proof-of-storage
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Jan 12, 2023 - Python
Apostille - A blockchain notarization and timestamping solution with transferable, updatable, branded, and conjointly owned notarizations.
typescript blockchain certification nem proof-of-existence timestamping proof-of-authenticity proof-of-ownership notarization
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Apr 21, 2020 - TypeScript
pics as prooves or helpful
node synchronization proof-of-concept continuous-integration continuous-delivery proof continuous-deployment proof-assistant continuous-testing ethereum-client learning-by-doing proof-of-stake proofofconcept proof-of-authority continous-integration proof-of-existence proof-of-knowledge parity-learning parity-node parity-client
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Sep 23, 2018
Proof of existence built on Ethereum - proof that a document, agreement, or contract existed at a specific time
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May 23, 2020 - JavaScript
Proof primitive for AI agents & humans on MultiversX. Anchor CI/CD artifacts and agent outputs on-chain.
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Mar 8, 2026
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