# Stampiz

> Notarization: existence and integrity of digital content with blockchain.

Canonical page: [https://chrome-stats.com/d/io.stampiz.timeproof](https://chrome-stats.com/d/io.stampiz.timeproof)

## Overview

- **ID:** `io.stampiz.timeproof`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Stampiz Tech
- **Category:** TOOLS
- **Downloads:** 12
- **Version:** 4.4.1
- **Last updated:** 2025-06-01
- **First published:** 2024-12-02
- **Publisher country:** IT
- **Size:** 34 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=io.stampiz.timeproof)
- **Website:** [https://stampiz.io](https://stampiz.io/)
- **Privacy policy:** [https://timeproof.stampiz.com/v1/legal/privacy](https://timeproof.stampiz.com/v1/legal/privacy)

## Description

The notarization process on the blockchain involves the following steps:<br>* creation of a hash: the document is converted into a unique string of characters, called a hash. This hash represents the digital fingerprint of the document and any modification, even minimal, would make it completely different.<br>* Registration on the blockchain: the hash is recorded within a block of the blockchain. Once recorded, the data becomes immutable and transparent, as it is visible to all nodes in the network.<br>* Timestamping: in addition to the hash, the exact date and time of registration is also recorded, thus providing irrefutable proof of the date of creation of the document.<br>Notarization on the blockchain offers the following advantages:<br>* Immutability: once recorded, the data cannot be modified or deleted.<br>* Transparency: all nodes in the network can verify the authenticity of the document.<br>* Security: blockchain technology is highly secure thanks to cryptography and distributed consensus.<br>* Timeliness: registration occurs in real time, providing immediate proof of the existence of the document.<br>* Cost-effective: it eliminates the need for intermediaries such as notaries, reducing costs.

## Rankings

- #2,759,803 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.DOWNLOAD_WITHOUT_NOTIFICATION`
- `android.permission.INTERNET`
- `android.permission.READ_MEDIA_AUDIO`
- `android.permission.READ_MEDIA_IMAGES`
- `android.permission.WAKE_LOCK`
- `io.stampiz.timeproof.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/io.stampiz.timeproof)