Publisher media workflow / working product

Turn question banks into publishable visual lessons.

Matsorik converts one publisher-owned math question into a reviewable explanation, visual scenes, narration, timed captions, video and QTI delivery without losing the source or production history.

See the finished lesson Replay how it was made Inspect the verified receipt

Publisher delivery: MP4 + VTT + QTI
Reusable package: 17 stored assets
Production record: 5/5 verified
Existing product: 30k+ questions

WORKING SYSTEM Live uploads execute narration through a custom Genblaze SyncProvider. DURABLE DELIVERY Backblaze B2 stores and serves the reusable media, metadata and provenance package.

Product demo

Review the result first. Replay the production only if you want to.

The prepared English example opens as a completed publisher package. A guided replay reveals the source, explanation, visuals, narration and delivery in order.

SOURCE QUESTION Publisher-owned source

No login required

English calculus source question with derivative graphs and signed areas — ORIGINAL QUESTION **English source edition** Faithfully localized from the publisher-owned question.

Try your own questionPrivate judge access · live Cloud Run worker

Drop a question image here PNG, JPEG or WebP · photo, scan or exported page Judge access code

Credentials stay server-side. New runs use scoped quotas and a one-job worker lease.

PUBLISHER REVIEW Verified English lesson package Q26 / READY

Ready

PRODUCTION PATHFive reviewable steps, then durable delivery

01

ReadReady
Understand the question
02

SolveReady
Build the explanation
03

VisualizeReady
Create lesson scenes
04

NarrateReady
Add voice and captions
05

RenderReady
Assemble the lesson
B2

Delivery verifiedReady
17/17 stored assets

FINISHED LESSONReady to teach, review and publish

Verified

Original English calculus question — ORIGINAL SOURCEPublisher question

Structured SVG lesson scene — STRUCTURED OUTPUTEditable SVG lesson scene

Answera = 2

NarrationEnglish + captions

Duration131.1 s

Verified package17/17 files

Publisher formatsVideo · captions · QTI

The publisher receives a playable lesson, timed captions, a structured solution and an LMS-ready assessment package.

Download QTI package ↗ Accessibility manifest ↗ Review full lesson ↗

Inspect Genblaze lineage

Final MP4 SHA-256 e3020d1511b8784ce07a62d9352b1ba91c6634e568c747d907ae93646ef3201e

Published lesson library

A small catalog of finished lessons.

Each example is a complete English lesson with synchronized visuals, narration and timed captions. The catalog is served from Backblaze B2.

11finished lessons

63teaching steps

9math topics

33reusable media assets

Served from Backblaze B2

Curated outputs

Start with three standout lessons.

New judge generations appear here automatically. Open the full catalog only when you want to inspect all eleven stored lessons.

Loading the B2 lesson library…

Technical proof

How one publisher question becomes a verified lesson package.

Genblaze executes live narration. Backblaze B2 stores each reusable deliverable and its linked production record.

01 / INPUTPublisher source

Question image

02 / MATSORIK COREGround and solve

Source map + reasoning JSON

03 / VISUAL SYSTEMBuild SVG scenes

Deterministic presentation

04 / GENBLAZEExecute narration

Custom SyncProvider + Pipeline

05 / COMPOSERender delivery

WAV + VTT + MP4 + QTI

06 / BACKBLAZE B2Store and verify

17 content-addressed assets

LIVE GENERATIONGenblaze SyncProvider -> Gemini TTS

A retryable Genblaze Pipeline executes narration clips and publishes validated audio through ObjectStorageSink.

PREPARED JUDGE REPLAYStored WAV + VTT from the verified run

The replay starts no new inference. It reuses the original run IDs, manifests and B2 object hashes.

17 / 17remote objects available

5 / 5linked manifests valid

1 / 1final MP4 fully decoded

VERIFIED PREPARED RUNQ26 visual area graphs

One stored production run, presented without exposing credentials.

Run complete

Answer: a = 2
Lesson duration: 131.08 s
Solver plan: 4 steps
Narrated beats: 6
Video: 1600 x 900 MP4
Delivery: MP4 + VTT + QTI
Pipeline stages: 5
Stored artifacts: 17
Storage region: US EAST 005
Stored bytes: 8.36 MiB

FINAL MP4 SHA-256 e3020d1511b8784ce07a62d9352b1ba91c6634e568c747d907ae93646ef3201e

5 manifests and 17 B2 objects are ready to re-check

BACKBLAZE B2 OBJECT TREEA reusable lesson package, not one opaque video file.

matsorik/
+-- assets/
|   +-- <sha256>.svg    source + formalized scene
|   +-- <sha256>.json   solution + gates + timelines
|   +-- <sha256>.png    presentation preview
|   +-- <sha256>.wav    synchronized narration
|   +-- <sha256>.vtt    timed English captions
|   +-- <sha256>.mp4    final visual lesson
|   +-- <sha256>.zip    QTI 3.0 package
+-- manifests/
    +-- <run-id>.json   parent-linked stage record

Content-addressed keys deduplicate reusable media and keep each manifest tied to exact stored bytes.

STORED ARTIFACTS

Every component is individually inspectable.

Stage / role	Format	Bytes	Content hash	Open
Loading stored lesson files...

CRITICAL INTEGRATION

Genblaze owns execution and B2 delivery at the narration boundary.

The custom provider adapts Gemini TTS to Genblaze's provider contract. The Pipeline adds retry and concurrency controls; ObjectStorageSink persists content-addressed outputs to B2.

View raw receipt JSON -> View full implementation ->

provider = GeminiTTSProvider(...)
pipe = Pipeline("matsorik-gemini-narration")

pipe.step(
    provider,
    model=args.model,
    prompt=clip["spoken_text"],
    modality=Modality.AUDIO,
)

sink = ObjectStorageSink(
    b2_backend,
    key_strategy=KeyStrategy.CONTENT_ADDRESSABLE,
)

result = await pipe.arun(
    sink=sink,
    max_retries=args.max_retries,
    max_concurrency=args.parallelism,
)

Stage / role	Format	Bytes	Content hash	Open
Loading stored lesson files…

Publisher use

From question bank to reviewable lesson library.

Editors get a connected package instead of a single opaque AI response: the source, explanation, scenes, narration, captions and delivery files stay together.

Explore Matsorik

Convert existing question banks without rebuilding content from scratch.
Review the source, explanation and visual teaching steps before distribution.
Reuse approved video, poster, narration and caption assets without regenerating them.

Matsorik product history: 30,000+ questions solved
Product reach: 2,500+ app downloads
English proof catalog: 11 complete lessons
Reusable B2 library: 33 media assets