{
  "asset_id": "mermaid_wild",
  "tool": "Seedance via Anijam (ByteDance)",
  "tool_version": "1.x",
  "model_native_resolution": "1440x1440",
  "model_native_fps": 24,
  "source_image": "../../sources/mermaid_wild__source.png",
  "prompt_used": "../../prompts/RICA_ANIME_PROMPT_v3.md",
  "prompt_version": "v3 (RICA Prompt 2 user-validated)",
  "date_utc": "2026-05-16",
  "duration_seconds": 5,
  "cost_estimate_usd": 0.74,
  "outputs": {
    "native_24fps_1440x1440.mp4": "Direct Seedance output untouched",
    "30fps_mci.mp4": "ffmpeg minterpolate MCI 24→30",
    "60fps_mci.mp4": "ffmpeg minterpolate MCI 24→60 broadcast",
    "30fps_loop_pingpong_10s.mp4": "forward+reverse concat, guaranteed loop",
    "30fps_loop_xfade_5s.mp4": "crossfade last 0.5s back to first 0.5s",
    "30fps_TRANSPARENT_hevc.mov": "chroma-key black removed, HEVC alpha (Safari/iOS friendly)",
    "sprite_atlas_12x11.png": "121 frames @ 256px in 12×11 grid"
  },
  "notes": "User feedback: better than Runway. Static camera + loop respected. Anti-leak constraint working."
}