Coherence Energy Labs  /  Obsign

Obsign Certificate

A deterministic enhancement you can prove. Deterministic, reversible, and reproducible to the bit on any machine. This document carries its own proof.
Independent verification: verified  |  Tier A
The enhancement
enhanced
original
BeforeAfter
What this is
A learned denoiser, quantized to exact integer arithmetic and run as the same computation on every substrate. The output is not an opinion. It is a function of the input and the model, and anyone can re-run it.
0.0616mean change
0.2335max invention
Exactly what the operation did
The diff. Every pixel the model changed (amplified). The original is recoverable bit-exact: original = enhanced minus diff.
Coherence. Real oriented structure (edges, texture), where the image has content the model can faithfully restore.
Invention flag. Change concentrated in low-structure regions, where a model would be most tempted to invent detail. A denoiser should light up only where it lifts noise from flat areas, never where it fabricates edges.
Proof, not promise
Python integer reference
the canonical deterministic computation
verified
GPU native-i32 == Python
bit-identical on the GPU, not f32-close
verified
Native C++ (.ccnn) == Python
the OFX-shippable core, bit-for-bit
verified
Tile-invariant
identical output however the host tiles the frame
verified
Reversible
original recovered from the receipt, bit-exact
verified
Ed25519 signed
tamper-evident, cryptographically attested
verified
Cryptographic provenance
Modeldenoiser_clean2.pt
Producerobsign 1.0.0
Guaranteebit-exact deterministic (cross-device)
Original SHA-2566a1bac4dfe398c5d266734c4ff65001d2918d8d92803aa68378d3436c310594a
Enhanced SHA-256b65e45defd3f720d2dd3f300eef600ef8ea098666ce3af12001b0b55e6832a95
Diff SHA-25630bb805f11c5c1417c8a41d5536a5b497d1a4434be69e6f677147a2aeff89b63
Model fingerprintf057b2802e25b34ff704b250b92757a046f2174039db912f7286e00610815bbf
Receipt SHA-256a2bcfe45218ce45d9b96ae0dffb5b63da331c5b204a8b70d3a251d2d03be36ec
Signatureed25519   key a43fec0b7ba55801c5c88c3a369bd7cd2bc3b4b93c4f4eddad80e225b32abc16
Re-run this receipt on any machine to reproduce these exact pixels: seal verify-accountable receipt.json --input original.png --model model
Coherence Energy Labs  /  provable, accountable computation.