DEV Community

Cover image for TimeProofs v0.1 — A Free, Privacy-First Timestamp API for Developers (Public Beta)
BACOUL
BACOUL

Posted on

TimeProofs v0.1 — A Free, Privacy-First Timestamp API for Developers (Public Beta)

TimeProofs v0.1 — A Free, Privacy-First Timestamp API for Developers (Public Beta)

webdev #opensource #api #security #privacy

TL;DR

Hash locally. Send only the hash. Get a signed timestamp in milliseconds.

Verify publicly forever.

Zero content. Zero cookies. Zero tracking.

👉 Try it → https://timeproofs.io/verify.html

📘 Spec → https://timeproofs.io/proofspec.html

💻 GitHub → https://github.com/BACOUL/timeproofs

🌐 Website → https://timeproofs.io


✅ What is TimeProofs?

TimeProofs is a tiny but powerful privacy-first trust layer for the web.

  • 🔑 Hash locally — your content never leaves your device
  • Instant timestamps — cryptographic signatures in milliseconds
  • 🔍 Public verification — anyone can verify proofs anytime
  • 🧩 Edge-native API — built for automation, AI pipelines & workflows
  • 🛡️ Open, inspectable & transparent — no blockchain, no uploads, no tracking
  • 🚫 Hash-only, no logs — we never see your data

Just proof that:

“This data existed at this exact time, and hasn’t changed since.”

Try it → https://timeproofs.io/verify.html


🌍 Why TimeProofs exists

For decades, developers have lacked a simple, universal, private way to prove:

“This artifact existed at this exact moment.”

Most existing options are:

  • too heavy (blockchains, audit ledgers)
  • too centralized or opaque
  • not designed for modern developer or AI workflows

We wanted something:

minimal · private · fast · inspectable · universal

So we built it.


🧪 How TimeProofs works (in practice)

  1. You hash your data locally — content never leaves your machine
  2. You send only the hash to TimeProofs
  3. You receive a signed timestamp proof
  4. Anyone can verify using the same hash

We only see a fixed-length hash.

Nothing else.


🚀 Quickstart: Create your first proof

1. Create a proof

HASH="4fb84632453c4bad7d72a92b26fb9b7ecf2646fb109aa03a4e5a3d5d7"

curl -X POST "https://api.timeproofs.io/api/proofs" \
  -H "Content-Type: application/json" \
  -d "{\"hash\":\"$HASH\"}"
Enter fullscreen mode Exit fullscreen mode

Example response

{
  "ok": true,
  "hash": "4fb84632453c4bad7d72a92b26fb9b7ecf2646fb109aa03a4e5a3d5d7",
  "version": "v0.1",
  "type": "event",
  "timestamp_iso": "2025-11-20T22:15:34.200Z",
  "verify_url": "https://api.timeproofs.io/api/verify?hash=4fb846..."
}
Enter fullscreen mode Exit fullscreen mode

2. Verify later

curl "https://api.timeproofs.io/api/verify?hash=$HASH"
Enter fullscreen mode Exit fullscreen mode

You’ll know:

  • whether the proof exists
  • when it was created
  • its version & integrity

🤖 Example: Proving an AI output

Your AI pipeline generates a PDF or JSON report.

You want to prove:

  • when it was created
  • that it hasn’t changed
  • without uploading or exposing the file

You hash the file locally, send only the hash to TimeProofs, and get a permanent public timestamp.

Already used for:

  • AI agent logs
  • dataset integrity
  • release signatures
  • compliance automation
  • customer-facing reports

Zero content. Full trust.


🛡️ Security Model (simplified)

TimeProofs follows a strict, transparent security model:

  • No sensitive data ever touches the server
  • No user accounts
  • No cookies or invasive analytics
  • Strict CSP across the entire site
  • Hash-only inputs → we cannot leak what we never receive
  • Minimal attack surface (static site + edge API)

Full details → https://timeproofs.io/security.html


🗺️ Roadmap (high-level)

v0.2 — Coming next

  • JavaScript SDK
  • Offline verification bundles
  • Multi-backend storage
  • Self-host documentation

v1.0

  • Dashboard
  • API keys
  • Pricing
  • Early partner program

v2.0

  • Distributed ProofChain
  • Multi-provider guarantees
  • Foundation governance

Vision: Make TimeProofs the open standard for digital proof of existence

— something every AI system, developer, and platform can rely on.


🤝 How you can help (Public Beta)

If you:

  • maintain APIs or SaaS
  • build AI tools
  • care about provenance, audit trails, or data integrity
  • want provable releases or timestamped artifacts

We’d love your feedback.

👉 Try it → https://timeproofs.io/verify.html

👉 Read the spec → https://timeproofs.io/proofspec.html

👉 GitHub → https://github.com/BACOUL/timeproofs


🎉 TimeProofs v0.1 is live

Hash locally.

Get a signed timestamp.

Verify publicly.

Zero content. Zero cookies. Zero tracking.

Just proof.

https://timeproofs.io

Top comments (0)