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ProofSnap

ProofSnap v1.0.1

Web pages as signed evidence

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Competitor profile

Developer declarations; not independently tested. Listing last checked Nov 4, 2026. Package observed Nov 3, 2026.

Declared capabilities

  • Capture web pages as evidence
  • Compare captures
  • Watch pages for changes

Cost & access

Nothing is sold and no checkout or plan change happens in ChatGPT. Captures use the user's existing ProofSnap plan; captures beyond its allowance and optional eIDAS timestamps are billed to that existing account under its terms, after the user confirms the count in the chat.

Declared limitations · 3
  • Capturing a page behind the user's own login is not supported
  • Editing or backdating evidence is not possible
  • Requests unrelated to web evidence
Onboarding example
Capture https://example.com as evidence.

View package source →

Description

From the marketplace listing

ProofSnap captures a public web page as an evidence package: screenshot, HTML, page text, network metadata, SHA-256 hashes, a signed manifest, chain of custody, an OpenTimestamps Bitcoin proof and, on request, an eIDAS qualified timestamp. In ChatGPT you can capture a page, compare it with an earlier capture and see what changed, watch a page on a schedule, organize captures into matters, verify your stored captures and check a manifest hash in ProofSnap's public ledger. Each finished capture comes with a download link and its manifest hash. Intended for lawyers, compliance teams, journalists, investigators and anyone who needs to show later what a web page displayed. Sign in with a ProofSnap account.

Language: English · Automatically detected from descriptions.

Changes

No changes recorded yet. Follow this plugin to keep track of future changes.

First seen Nov 3, 2026. Last seen Nov 4, 2026.

Keywords

Files & skills

File archives

Plugin package5 files · 13.8 KBBrowse files →

Release notes

1.0.1: tool annotations corrected after review. Billed tools and tools that reach public services (capture_web_page, compare_captures, certify_hash, create_schedule, set_schedule_status) are marked destructive and open world; add_captures_to_matter is marked idempotent. Tool descriptions now state every side effect (OpenTimestamps proof, legal hold on matter additions, pausing and resuming schedules, the download link). Sending the page address to the Internet Archive is off unless the user asks for it. Cost confirmations show counts, not amounts, and plan notices link to the informational pricing page. Initial release: capture, compare, schedules, matters, verification and public ledger lookup.

Declared in the saved package. Remote tools may change independently.

Package details

Publisher declarations from the archived package. These are separate from our research and the live service's terms.

Package author
ProofSnap
Keywords
See keywords
Commerce declaration
Does not support commerceThis does not establish whether access is free or paid.
Review scenarios
5 positive · 3 negativeScenario counts, not test results.

Declared capabilities

  • Capture web pages as evidence
  • Compare captures
  • Watch pages for changes
  • Organize matters
  • Verify evidence packages

Package observed Nov 3, 2026.

Technical details
First seen
Nov 3, 2026 · 18:00 UTC
Last seen
Nov 4, 2026 · 00:00 UTC
Collection status
Collected

plugin_asdk_app_6ae7031dbb648191865091fb190ba71a

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