StampR
Turn digital files into verifiable evidence
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StampR helps creators and businesses document when a digital work existed and verify its integrity. It generates a SHA-256 fingerprint locally, records an authorship declaration, and issues a certificate backed by a qualified electronic timestamp from an EU trust service provider. Certificates can be verified online using the original file, hash, or serial number, while users decide whether the original is stored or remains private.
PH · launched Sep 25, 2026 · 2 upvotes (top 26%) · 0 views
Niche: encryption and cryptography tools · 147 launches, 21 in the last 7 days ▲ +40% · Explore this niche →
Category and tags
- Horizontal
- Compliance & governance
- B2B
- Not AI
- Commercial product
- Productivity
- SaaS
- Legal
Visit website ↗ Source listing ↗
More like this: all 147 launches in encryption and cryptography tools →
Could you build this?
Partial Generating client-side SHA-256 hashes and displaying certificates is trivial, but integrating with qualified EU Trust Service Providers (eIDAS-compliant QTSPs) to generate legally admissible RFC 3161 timestamps requires formal cryptographic and compliance integrations.
What it would actually take: The front end can compute file hashes using the Web Crypto API, but the backend must interface via RFC 3161 (Time-Stamp Protocol over HTTP) with an accredited eIDAS Qualified Trust Service Provider (QTSP) HSM. Generating valid cryptographic timestamp tokens (TST/PKCS#7) and legally admissible digital signature envelopes requires deep knowledge of PKI, X.509 certificate chains, ASN.1 parsing, and EU electronic signature regulations.
Competitors
Other products that read as similar to this one : 241 launches clear the similarity bar, closest 8 shown.
Attention rank: #68 of 242 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 277 days after the earliest competitor.
- SecureSigner · ph · 2026-09-12 · 1 upvotes · similarity 0.55
- Docmint · ph · 2026-11-03 · 1 upvotes · similarity 0.52
- Doc Notary · ph · 2026-11-05 · 1 upvotes · similarity 0.51
- District Seal · ph · 2026-09-28 · 1 upvotes · similarity 0.50
- cer8fy · ph · 2026-11-08 · 2 upvotes · similarity 0.50
- Stampr · ph · 2026-10-15 · 1 upvotes · similarity 0.48
- ProofLens · ph · 2026-10-23 · 1 upvotes · similarity 0.48
- ProofCreate · ph · 2026-11-14 · 1 upvotes · similarity 0.47
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