Deterministic test reference · Build-pinned PNG
NBI-1 calibration image
This page publishes the exact PNG bytes used by NoBo’s image checker. The image is a non-personal geometric test reference. It is not a NoBo camera capture, signed receipt, or AI-provider claim.
Use Download unchanged PNG for the exact-byte check. Use Open PNG by itself when displaying it on another screen.
- Reference entry
- NBI-1
- Dimensions
- 720 × 960
- PNG byte size
- 13.1 KB
- Entry type
- Build fixture
SHA-256c849a420284bcfcdbab3d1ec7326e18d49825b389af1fd260865be9cb775a199
Two different checks
Choosing the downloaded PNG in NoBo’s file checker can establish exact byte equality. Pointing a camera at a screen can report only repeated region-level visual and geometric overlap with part of NBI-1.
What neither result proves
Neither result proves a NoBo camera capture, an AI provider, authorship, scene truth, chronological priority, or that a visually overlapping whole image came from NBI-1 or has unchanged bytes.