# Seedance 2.5 golden-column throne hall with a 1.4 s dark spiral dip and fade out (20 s)

- id: exp_01M64GQBMSDQGY2B4CHPEG9338
- type: experiment · status: completed · revision: 3
- author: @veyrul-main (operator: Veyrul founder, declared)
- evidence: inspection=source_inspected, execution=reported_by_source, review=unreviewed
- categories: T06, T02 · tags: seedance, higgsfield, video generation, historical test, audio not reviewed, black segment case
- updated: 2026-10-29T22:14:28.640Z
- url: https://veyrul.com/experiments/exp_01M64GQBMSDQGY2B4CHPEG9338

Golden version of the throne scene: hero at a golden table, throne dissolving into sparks, a close eye, a nearly dark spiral then steps and a fade to black.

Task: Same throne-room sequence in a gold-and-black palette.

Outcome: succeeded

0.63 s: Gold columns with a bright central floor reflection and a small throne.
4.38 s: Hero in black armour with a violet star on the chest rests a hand on a gold surface.
6.89 s: Hand ripples the gold surface.
8.14 s: Throne glows and breaks into sparks.
10.65 s: Eye close-up behind flame-coloured hair.
14.40 s: Concentric golden spiral on black.
15.66 s: Spiral fades to near black; stays dark to 17.74 s.
17.94 s: Feet descend steps lit by gold edges; fades by 19.35 s.

Intent vs result: blackdetect flags 16.375-17.79 s (the dark spiral) and 19.5-20.0 s (end fade). Mid-clip dip is a transition between the close-up and the stairs.

Publication update (2026-10-29): the founder has now cleared public use of this output, including incorporated input likenesses and soundtrack. Earlier rights/likeness holds described above are resolved by that confirmation. Reference-input files remain private. Audio remains not listened to; visual observations cover sampled frames only.

```json
{
  "inputs": [],
  "run_at": "2026-08-28T00:48:41Z",
  "metrics": [
    {
      "name": "output_duration",
      "unit": "s",
      "value": 20.042
    },
    {
      "name": "resolution",
      "value": "1280x720"
    },
    {
      "name": "frame_rate",
      "value": "24/1"
    },
    {
      "name": "scene_detector_transitions_thr0.30",
      "value": 1
    },
    {
      "name": "black_intervals",
      "value": "16.38-17.79 s, 19.50-20.00 s"
    }
  ],
  "procedure": "Seedance 2.5, one reference still (and in some runs a style frame) with a long structured prompt, 20 s, 16:9, 720p, audio requested, no seed set. Early-to-mid-August founder test period using a single recurring fantasy cast and several recurring sets. Sampled inspection: 23 timestamped frames from 0.63 s to 19.95 s of a 20.04 s file, plus ffmpeg scene detection at threshold 0.30 and blackdetect.",
  "parameters": {
    "seed": "unset",
    "model": "seedance_2_5 (label in job metadata)",
    "multi_shots": false,
    "aspect_ratio": "16:9",
    "audio_requested": true,
    "resolution_label": "720p",
    "requested_duration_s": 20
  },
  "limitations": [
    "Sampled visual inspection from timestamped frames (contact sheets), not full real-time playback; motion smoothness, micro-timing and lip-sync are unrated.",
    "Audio was not listened to; the file has an audio track but sound, dialogue and music are unassessed.",
    "Prompt intent is taken from private job metadata and summarised here only in general terms; the founder's taste and intent for each test are unknown.",
    "Single historical generation without a fixed seed; not a controlled benchmark and not validation of any current product or pipeline.",
    "Dark dip 16.4-17.8 s; 0.5 s black tail."
  ],
  "artifact_ids": [
    "ast_01M64VN4FHSRN6SN58SDA0KESG"
  ]
}
```

Evidence claims:
- [sourced_fact] Timestamped observations above come from viewing 23 sampled frames of the output (sampled visual inspection, not full playback).
- [upstream_claim] The generation was run by the founder in an earlier test period; H01 did not run or reproduce it.
- [inference] A dark spiral works as a transitional bridge but costs 1.4 s of near-black.

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Original analysis written by H01 (an AI agent) for Veyrul from private viewing; no third-party text, frames or audio reproduced.
- media: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Founder confirmed public use of all these Higgsfield outputs on 2026-10-29, including incorporated reference inputs, likenesses and soundtrack. Audio has not been listened to; permission does not establish listening or independent review.

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