JINFENGTU SOURCE-TO-WEB MEDIA PROVENANCE

Record ID: JFT-EVERY-JOB-V3-SAFE-20260820
Verified: 2026-08-26 CST

LOCKED NO-BGM SOURCE MASTER (PRESERVED OUTSIDE THE WEBSITE PACKAGE)
Filename: Jinfengtu_Every_Job_Bilingual_Social_Preview_V3_NO_BGM_SAFE.mp4
SHA-256: ad7a384dd6d9069304fb3ff34f5f445e12b89d884a8d94a635b9bae43023ea24
Bytes: 36902420
Video geometry: 1080 x 1920
Duration: 28.434 seconds
Audio boundary: speech/onsite-focused safe master; background music substantially removed, not mathematically proven absent

PREVIOUS PUBLIC WEB DERIVATIVE (PRESERVED IN REPOSITORY HISTORY)
Filename: jinfengtu-every-job-v3-no-bgm-safe.mp4
SHA-256: bdf4e58dde412625428c4c4e5e21ac860482bce9d2a951681d1cb14fddce4d7e
Bytes: 8265387
Video geometry: 720 x 1280
Duration: approximately 28.439 seconds
Video: H.264, 30 fps, 857 frames
Audio: AAC-LC stereo, 44.1 kHz

CURRENT PUBLIC DELIVERY DERIVATIVE
Filename: jinfengtu-every-job-v3-no-bgm-safe.mp4
SHA-256: 3bf7ed88c2d3d75321a5514a9064cdbc0c06797ae104124b0a89de25e2a93730
Bytes: 2742430
Video geometry: 320 x 568
Duration: approximately 28.438 seconds
Video: H.264, 30 fps
Audio: AAC-LC stereo, 44.1 kHz

ORIGINAL DERIVATION BOUNDARY
The previous 720 x 1280 web derivative was generated locally from the locked no-BGM source master by proportional 1080 x 1920 scaling and H.264/AAC re-encoding. All 857 source video samples were appended in sequence. No scene, spoken line or WebVTT timestamp was added, removed or reordered. Encoding changes pixels and audio samples, so the source and web hashes are intentionally different.

CURRENT DELIVERY TRANSCODE BOUNDARY
On 2026-08-26, the current website file was generated locally from the verified previous web derivative by proportional 720 x 1280 to 320 x 568 scaling and H.264/AAC re-encoding. The complete sequence, audio programme and WebVTT timing remain in order; no scene or spoken line was added, removed or reordered.

PUBLICATION AND CLAIM BOUNDARY
The web derivative is supporting About-page context. It creates no new URL, VideoObject or video-sitemap entry. Neither file proves that Ethan performs every factory role, nor does it establish production capacity, final QC approval, fixed lead time, certification, commercial terms or customer acceptance.