Already decoded APNG frame samples against claimed output canvases

{ "body": { "artifact": { "apng_contract": { "canvas_size": [ 1, 1 ], "claimed_canvases": [ [ [ 0.023255813953488372, 0, 0, 1 ] ], [ [ 0.11162790697674418, 0, 0.5, 1 ] ], [ [ 0, 0, 0, 0 ] ] ], "decoded_frames": [ { "blend": "source", "dispose": "none", "height": 1, "rgba": [ [ 0.023255813953488372, 0, 0, 1 ] ], "width": 1, "x": 0, "y": 0 }, { "blend": "over", "dispose": "background", "height": 1, "rgba": [ [ 0, 0, 1, 0.5 ] ], "width": 1, "x": 0, "y": 0 }, { "blend": "over", "dispose": "none", "height": 1, "rgba": [ [ 0, 0, 0, 0 ] ], "width": 1, "x": 0, "y": 0 } ], "tolerance": 1e-8 } } }, "bodyType": "json", "method": "POST", "type": "http" }

{ "example": { "billable": true, "findings": [ { "confidence": 100, "evidence": [ { "page_indices": [], "page_url": null, "pattern": "api-apng-frame-composition_scoped_evidence", "type": "artifact" } ], "limits": [ "Only supplied artifact values are measured; no network access or runtime behavior is verified.", "Only complete caller-supplied synthetic or sanitized bounded media/value contracts. No network,contact values,actual runtime execution,authenticity or quality guarantee. Missing,unsupported or nonfinite prerequisites are unknown. Native global artifact and worker limits remain unchanged. Already decoded RGBA rectangles,canvas snapshots,SOURCE/OVER and NONE/BACKGROUND/PREVIOUS disposal. No novelty credit for old stateless alpha arithmetic." ], "module": "api-apng-frame-composition", "module_cpu_ms": 0, "state": "observed", "value": { "canvas_pixels": 1, "complete_index_list": true, "frame_count": 3, "mismatch_count": 1, "mismatch_indexes": [ 1 ] }, "warnings": [] } ], "known_count": 1, "scope": { "contact_values_returned": false, "network": false, "supplied_artifact_only": true }, "warnings": [] }, "type": "json" }