UploadToBlockchain
Prove any file existed, sealed on Bitcoin and Arweave
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UploadToBlockchain proves a file existed on a given date — no account, pay per upload. Your file is hashed (optionally encrypted client-side with AES-256-GCM, so even we can't read it) and stored permanently on Arweave, giving you a public, verifiable record. Add a Bitcoin-backed certificate via OpenTimestamps — it only ever sees the hash, never the file. Built for creators and freelancers who need solid proof of prior existence. $4.99 per proof, $9.99 with Bitcoin. Up to 50MB.
PH · launched Nov 3, 2026 · 2 upvotes (top 19%) · 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
- Prosumer
- Not AI
- Commercial product
- Bitcoin
- Blockchain
- Security
Visit website ↗ Source listing ↗
More like this: all 147 launches in encryption and cryptography tools →
Could you build this?
Yes Hashing, optional client-side AES-256-GCM encryption, uploading to Arweave via its SDK, and creating OpenTimestamps Bitcoin proofs are all standard library integrations with a simple pay-per-upload flow.
Competitors
Other products that read as similar to this one : 297 launches clear the similarity bar, closest 8 shown.
Attention rank: #36 of 298 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 369 days after the earliest competitor.
- GETOKEN File Proof · ph · 2026-11-10 · 1 upvotes · similarity 0.60
- Anchor any file to Bitcoin to prove it existed at a specific time · hn · 2026-03-19 · 8 upvotes · similarity 0.59
- ChainProof · ph · 2026-10-06 · 1 upvotes · similarity 0.55
- LPD · Protect your digital property · ph · 2026-09-28 · 1 upvotes · similarity 0.55
- Docmint · ph · 2026-11-03 · 1 upvotes · similarity 0.52
- On Record Verify · ph · 2026-10-27 · 1 upvotes · similarity 0.50
- Let's Seal · hn · 2026-07-27 · 94 upvotes · similarity 0.50
- Doc Notary · ph · 2026-11-05 · 1 upvotes · similarity 0.49
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.