StampViewer v1.0

StampViewer v1.0

A native Bitcoin Stamps viewer for NeXTSTEP 3.3, running on real NeXTstation hardware (68040 CPU).

Features

• Fetches stamp collections from multiple Bitcoin wallet addresses via stampchain.io API
• Displays PNG, GIF, and SVG stamps with nearest-neighbor pixel-perfect upscaling
• GIF multi-frame filmstrip viewer (click thumbnails to browse frames)
• SVG rendering via patched nanosvg library (C89 compatible)
• HTTPS/TLS 1.2 connectivity via cryanc
• Stamp list grouped by wallet address, sorted alphabetically by CPID
• Filter checkboxes: JPG/PNG, GIF, SVG, Other
• CPID search field
• Local cache for instant startup
• Wallet address management with confirmation dialogs
• Edit menu with Cut, Copy, Paste, Select All

Installation

1. Download StampViewer-v1.0.pkg.tar.gz
2. Extract on the NeXTstation: zcat StampViewer-v1.0.pkg.tar.gz | tar xf -
3. Double-click StampViewer.pkg to launch NeXTSTEP Installer
4. Install to /LocalApps

Requirements

• NeXTSTEP 3.3 on 68040 hardware
• Network connectivity to the internet

Libraries

• cryanc by Cameron Kaiser - TLS 1.2
• nanosvg by Mikko Mononen - SVG (patched for C89)
• stb_image by Sean Barrett - PNG/GIF

Built with Claude AI (Anthropic)
Created by ARNLTony