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BLOCKSTAMP

● Live · Pending

U.S. federal trademark · Serial No. 99481694

Mark
BLOCKSTAMP
Status
Pending
Serial Number
99481694
Filing Date
November 5, 2025
Class(es)
Class 009, Class 042, Class 045

Owners

SIMPLE PROOF INC.
03 · Roswell, GA, US
SIMPLE PROOF INC.
03 · Roswell, GA, US

Goods & Services

software as a service (SaaS) featuring software for cryptographic hashing, timestamping, and verification of electronic documents using blockchain technology; platform as a service (PaaS) featuring computer software platforms for integrating document timestamping and verification with enterprise document management systems and cloud-based platforms; providing temporary use of non-downloadable software for verifying the integrity and authenticity of digital files and for generating and sharing verification proofs; cloud computing featuring software for anchoring document hashes to a blockchain and for accessing blockchain transaction data related to timestamp proofs; application service provider (ASP) services featuring application programming interfaces (APIs) for connecting document repositories, email systems, and cloud storage to a timestamping and verification service; technical support services, namely, troubleshooting of computer software problems relating to blockchain-based timestamping and verification; computer consulting in the field of blockchain technology, data integrity, and compliance as it relates to electronic document workflows

downloadable computer software for cryptographic hashing, timestamping, and verification of electronic files using blockchain technology; downloadable application programming interface (API) software and software development kits (SDKs) for integrating blockchain-based timestamping and verification into third-party software; downloadable computer software for generating, storing, and sharing verification links for electronic documents; downloadable computer software for accessing blockchain explorers to view timestamp proofs; downloadable computer software for synchronizing or replicating cloud storage buckets to a document timestamping service

electronic document authentication services using blockchain technology; user authentication services using blockchain technology for verifying the integrity and authenticity of electronic documents

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Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.