{
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  "work": {
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    "title": "UbiquityThing-A-Sphere",
    "act_id": "act-i",
    "act_title": "Act I",
    "dramaturgical_note": "One stitched carrier; seven technical segments; nineteen authored load-bearing moments. The Scherzo is technically contained here and dramaturgically functions as an inter-act threshold."
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    "unavailable_asset": "buffer_hold_with_reason",
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      "availability": "ready",
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        "navigation_seek_seconds": 0,
        "label_time_seconds": 0,
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=myth",
      "dramaturgical_role": "system runs before certainty",
      "technical_notes": [
        "Mirror split pressure begins during the final eighteen percent; do not delay transition preparation until the chapter boundary."
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    {
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      "order": 1,
      "title": "II — The Mirror",
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      "admission_status": "admitted",
      "availability": "ready",
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      "carrier_range": {
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        "out_seconds": 706.44
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      "cues": {
        "canonical_start_seconds": 326.44,
        "navigation_seek_seconds": 326.44,
        "label_time_seconds": 328.2,
        "navigation_preroll_seconds": 2
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=mirror",
      "dramaturgical_role": "adversarial reflection and synchronization before meaning",
      "technical_notes": [
        "Myth residue remains beneath Mirror for two seconds.",
        "The final fourteen seconds are instrumental aftermath before abrupt severance."
      ]
    },
    {
      "segment_id": "act1.bridge-17-32",
      "order": 2,
      "title": "17/32 Recursive Spatial Descent",
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      "admission_status": "admitted",
      "availability": "ready",
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      "carrier_range": {
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        "out_seconds": 707.391
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        "navigation_seek_seconds": 706.44,
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=bridge_17_32",
      "dramaturgical_role": "convert a cut into inherited modal distance",
      "technical_notes": [
        "Exact duration 0.951 seconds.",
        "Seventeen governed 32nd-note objects; not an approximate audio-reactive fill."
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      "order": 3,
      "title": "III — The Witness & the Weight",
      "role": "movement",
      "admission_status": "admitted",
      "availability": "ready",
      "media_asset_id": "utas.media.act-i.browser.8ed19be0f91f",
      "carrier_range": {
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        "out_seconds": 1131.391
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        "canonical_start_seconds": 707.391,
        "navigation_seek_seconds": 707.391,
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        "navigation_preroll_seconds": 0.951
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=witness",
      "dramaturgical_role": "replace collective certainty with a locatable witness under load",
      "technical_notes": [
        "The witness remains off-center.",
        "The final quarter note blooms into Doctrine's inherited aperture."
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    {
      "segment_id": "act1.doctrine",
      "order": 4,
      "title": "IV — Doctrine / Brtusche",
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      "availability": "ready",
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=doctrine",
      "dramaturgical_role": "convergence, substrate, compression, retained rupture, exposure, and active procession",
      "technical_notes": [
        "One-beat aperture contraction at entry.",
        "Terminal procession remains active until hard severance."
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    {
      "segment_id": "act1.blackout",
      "order": 5,
      "title": "Literal Blackout",
      "role": "blackout",
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      "availability": "ready",
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        "out_seconds": 1825.727
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        "navigation_seek_seconds": 1825.032,
        "label_time_seconds": 1825.34,
        "navigation_preroll_seconds": 2
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      "lane_contract_ref": "/agency/contracts/lighting-score.json#movement=blackout",
      "dramaturgical_role": "sever active doctrine without afterimage or consolation",
      "technical_notes": [
        "Zero artistic emission for 0.695 seconds.",
        "O4 remains independent."
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    {
      "segment_id": "act1.scherzo",
      "order": 6,
      "title": "Reprieve — Scherzo — Gossip-Scape!",
      "role": "threshold",
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      "availability": "ready",
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      "dramaturgical_role": "inter-act threshold: celebration, substrate pressure, and isolation remain co-present",
      "technical_notes": [
        "Technically within the Act I stitched carrier.",
        "Dramaturgically points into Act II.",
        "First authored visual attack occurs 0.180 seconds after segment start."
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  "transitions": [
    {
      "transition_id": "act1.hinge.myth-mirror",
      "from_segment_id": "act1.myth",
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      "type": "embedded_hinge",
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          "carrier_seconds": 267.6808
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          "carrier_seconds": 326.44
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          "segment_id": "act1.mirror",
          "carrier_seconds": 328.44
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        "authored_overlap_seconds": 0,
        "authored_overlap_curve": null
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      "lane_law": {
        "persist": [
          "recurrence texture",
          "energy continuity",
          "inherited filament"
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        "change": [
          "one path becomes two non-identical bodies",
          "axis latency",
          "shared membrane"
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        "sever": [],
        "handoff": [
          "split pressure",
          "cyan/magenta lineage"
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        "next_available_requires_acknowledgment": true
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      "protected_event_note": "Mirror enters inside a two-second overlap; Myth does not disappear at the technical boundary. Renderer residue only: renderer-defined Myth residue beneath Mirror entry (~2s visual). v1 declares no authored-overlap audio contract and performs no gain automation."
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        "authored_overlap_seconds": 0,
        "authored_overlap_curve": null
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        "persist": [
          "pitch-class kinship",
          "severed energy"
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        "change": [
          "collective mass becomes gated recursive distance"
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        "sever": [
          "Mirror field",
          "language"
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        "handoff": [
          "bead one at severance plane"
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      "hold_behavior": {
        "when_unresolved": "freeze_artistic_time_preserve_witness_and_o4",
        "auto_continue": false,
        "next_available_requires_acknowledgment": true
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          "segment_id": "act1.bridge-17-32",
          "carrier_seconds": 706.44
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          "carrier_seconds": 707.391
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          "segment_id": "act1.witness",
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        "authored_overlap_seconds": 0,
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        "persist": [
          "modal distance",
          "pitch-class affinity",
          "recursion trace"
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        "change": [
          "traveling beads become witness/mass relation"
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        "sever": [
          "bridge event clock"
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        "handoff": [
          "bead seventeen passes behind off-center Witness halo"
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        "next_available_requires_acknowledgment": true
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          "constraint"
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          "off-center witness relation becomes centered mineral ignition",
          "mass distribution"
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          "Witness viewport jurisdiction"
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          "aperture becomes unearned working center"
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          "O4 safety orientation outside artistic clock"
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        "change": [
          "active procession becomes authored zero"
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          "all artistic emission",
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          "consoling transition"
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        "handoff": [
          "regime boundary"
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        "next_available_requires_acknowledgment": true
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          "unresolved substrate pressure",
          "isolation as non-assimilated lane"
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        "change": [
          "tempo to 137 BPM",
          "new social shell",
          "fresh attack"
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          "Doctrine regime",
          "spectral continuity"
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          "celebration, substrate, and isolation become simultaneous"
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      "protected_event_note": "No crossfade; first Scherzo visual attack is authored after 180 milliseconds."
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      "marker_id": "origin_true_black",
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        "carrier_seconds": 0
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        "preroll_seconds": 0
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        "absolute origin",
        "non-emission",
        "first causal boundary"
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        "anchor and return"
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        "preroll_seconds": 0
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        "direct versus diffuse field",
        "low center agreement"
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        "authority handoff"
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        "diffuse consequence",
        "constraint chords"
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      "story_job": "Begin convergence from a center that has not earned sovereignty.",
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        "centered declaration",
        "initial contraction"
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      "story_job": "Move pressure below immediate visibility without equating depth with moral rank.",
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        "low-register mass",
        "harmonic inheritance"
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        "carrier_seconds": 1618
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      "story_job": "Reconstruct the field without repairing away the break.",
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        "fracture discontinuity",
        "modulation pressure",
        "motif mutation"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "doctrine_exposure",
      "type": "load_bearing_moment",
      "segment_id": "act1.doctrine",
      "title": "Doctrine: maximum exposure",
      "cue": {
        "segment_id": "act1.doctrine",
        "carrier_seconds": 1684
      },
      "seek": {
        "target_seconds": 1684,
        "preroll_seconds": 0
      },
      "story_job": "Expose the system at maximum breadth before the terminal procession.",
      "load_bearing": [
        "spectral breadth",
        "lateral independence",
        "dissonance accumulation"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "literal_blackout",
      "type": "load_bearing_moment",
      "segment_id": "act1.blackout",
      "title": "Literal blackout",
      "cue": {
        "segment_id": "act1.blackout",
        "carrier_seconds": 1825.34
      },
      "seek": {
        "target_seconds": 1825.34,
        "preroll_seconds": 0
      },
      "story_job": "Sever an active doctrine without afterimage or consoling transition.",
      "load_bearing": [
        "zero emitted pixels",
        "hard boundary",
        "regime change"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "scherzo_three_lanes",
      "type": "load_bearing_moment",
      "segment_id": "act1.scherzo",
      "title": "Scherzo: three truths at once",
      "cue": {
        "segment_id": "act1.scherzo",
        "carrier_seconds": 1845
      },
      "seek": {
        "target_seconds": 1845,
        "preroll_seconds": 0
      },
      "story_job": "Keep celebration, substrate pressure, and isolation co-present and non-interchangeable.",
      "load_bearing": [
        "social shell",
        "pressure lattice",
        "phase-offset ember"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "scherzo_brother_rupture",
      "type": "load_bearing_moment",
      "segment_id": "act1.scherzo",
      "title": "Scherzo: the person breaks through the hit",
      "cue": {
        "segment_id": "act1.scherzo",
        "carrier_seconds": 1962.227
      },
      "seek": {
        "target_seconds": 1962.227,
        "preroll_seconds": 0
      },
      "story_job": "Let the widest crowd field make the singular person harder, not impossible, to locate.",
      "load_bearing": [
        "rupture inside harmonic citizenship",
        "isolation reacquisition",
        "crowd breadth"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "scherzo_box_seat",
      "type": "load_bearing_moment",
      "segment_id": "act1.scherzo",
      "title": "Scherzo: the audience loses exteriority",
      "cue": {
        "segment_id": "act1.scherzo",
        "carrier_seconds": 1998.227
      },
      "seek": {
        "target_seconds": 1998.227,
        "preroll_seconds": 0
      },
      "story_job": "Turn theatrical address into a governance event.",
      "load_bearing": [
        "fourth-wall exposure",
        "company reacquisition",
        "Act II threshold"
      ],
      "frame_ref": null
    },
    {
      "marker_id": "scherzo_terminal",
      "type": "load_bearing_moment",
      "segment_id": "act1.scherzo",
      "title": "Scherzo: porous terminal release",
      "cue": {
        "segment_id": "act1.scherzo",
        "carrier_seconds": 2024
      },
      "seek": {
        "target_seconds": 2024,
        "preroll_seconds": 0
      },
      "story_job": "End with all three lanes still perceptible rather than sealing the hit as victory.",
      "load_bearing": [
        "release persistence",
        "three-lane non-collapse",
        "decay without heroic seal"
      ],
      "frame_ref": null
    }
  ],
  "world_program": {
    "schema": "ubiquity.world-program.v1",
    "version": "1.1.2",
    "state": "proposed",
    "supersedes": "unauthored runtime constants — worldLawAt() and worldMap() in thingsphere.html: floor plane y=-4.4, five smin ring bodies rotating with uTime, sectored dome shell, slab-boolean scar, one-directional envelopes that never release",
    "story_job": "The ground answers the ensemble instead of decorating it, speaks only where the score authorizes a surface voice, and carries its history as sealed lineage rather than playback residue.",
    "authority": {
      "band": "biosphere_surface",
      "emitter_class": "S3",
      "band_law": "World channels may render only inside segments whose authored stage_space lists biosphere_surface among active_bands and S3 among emitter_classes. All other carrier time is authored absence, not omission.",
      "renders_in_segments": [
        "act1.doctrine",
        "act1.scherzo"
      ],
      "authored_absence_segments": [
        "act1.myth",
        "act1.mirror",
        "act1.bridge-17-32",
        "act1.witness",
        "act1.blackout"
      ],
      "absence_reason": "Myth, Mirror, Bridge, and Witness authorize C0/T1/W2 only; Blackout authorizes O4 only and its entry law is zero emission."
    },
    "geometry": {
      "form": "interior shell relief — shallow worked displacement on the inside of the biosphere_surface shell; no floor, no free-standing bodies, no privileged up-axis or horizon",
      "field_mapping": {
        "normalized_radius_1_world_units": 5.2,
        "derivation": "membrane_contract.reference_radius; the relief is interior tooling of the contained field, displaced inward only",
        "band_world_units": [
          4.784,
          5.2
        ]
      },
      "mean_relief_radius_normalized": 0.965,
      "displacement_ceiling_normalized": 0.028,
      "scar_shear_ceiling_normalized": 0.02,
      "band_containment": "The displaced surface must remain within normalized radius [0.92, 1.0] at every point and every carrier time.",
      "basins": {
        "count": 5,
        "angular_radius_radians_range": [
          0.28,
          0.55
        ],
        "parameter_source": "seed_sidecar.basin_bearings — per-basin bearing, depth_gain, rim_sharpness, terrace_count; five distinct basins, never five copies",
        "terracing_law": "banding is measured from each basin's rim, not from any global axis; a crater has an inside and an outside"
      },
      "orientation": {
        "privileged_up_axis": false,
        "relief_distribution": "full shell — tumbling the view finds worked surface everywhere and privileged ground nowhere",
        "static_in_field_frame": true,
        "ambient_motion": false,
        "note": "No world transform term may be a function of wall-clock or render time; the retired ring rotation (uTime*0.0035) violated viewport_contract.ambient_motion=false."
      }
    },
    "lighting": {
      "register": "recessive; grazing-light only — visible where relief catches the medium's ambient, invisible on the flat; below Doctrine's carriers it is pressure felt more than seen",
      "radial_shading_law": "Surface 'up' for shell relief is dot(n, -normalize(p)). No fixed key direction, no n.y fill or sky term, no max(n.y,0) caustic gate — each of these re-installs the horizon the geometry removed.",
      "illumination_sources": [
        "active environment mediumAmbient",
        "emitterShading (S3-visible emitters)"
      ],
      "medium_coupling": "preserved exactly — ambient tint and aerial perspective are read from the active environment so the relief stays continuous with the medium",
      "luminance_ceiling": {
        "value": 0.06,
        "unit": "fraction of reference white, peak world-layer contribution",
        "derivation": "0.5 × lighting_score.safety_envelope.maximum_reference_white_fraction (0.12)"
      }
    },
    "materials": {
      "law": "No world material or emission constant may bypass an authored movement palette.",
      "doctrine_albedo_family": {
        "palette_source": "lighting_score.movements.doctrine.palette",
        "references": [
          "copper #FF7A3D (desaturated)",
          "mineral_blue #35BFFF (desaturated)",
          "bone #FFF1D7 (desaturated)"
        ]
      },
      "scar_edge": {
        "palette_source": "doctrine.palette.crimson",
        "value": "#D61F5C"
      },
      "scherzo_lattice": {
        "palette_source": "scherzo.palette",
        "references": [
          "substrate_teal #00A98F",
          "substrate_red #D62B52"
        ],
        "material_lane_contract": "scherzo_substrate_pressure — primary_color_family teal_local_red"
      }
    },
    "two_clock": {
      "authored_term": "phase-window envelope in carrier time, cited from the score's own phase list and protected events",
      "measured_term": "lane modulation with a per-channel measured_gain_ceiling",
      "law": "The ground can never be driven by loudness alone, and no measured lane may create, move, or erase an authored boundary."
    },
    "seed_sidecar": {
      "path": "/agency/contracts/world-seed.integrals.json",
      "sha256": "c1b471e8310c25c6afc7277eeaa5bdd29026e1651a956438fc0516c4800b845e",
      "law": "Cumulative lane integrals are computed once at build over declared windows and sealed. The runtime only reads them, so every channel remains a pure function of carrier time plus current lanes.",
      "backscrub": "unmakes — scrubbing recomputes state at t with no playback history; the relief carries lineage, not residue",
      "derivations": [
        {
          "id": "basin_bearings",
          "window_segment": "act1.mirror",
          "window_seconds": [
            326.44,
            706.44
          ],
          "endpoint_marker": "mirror_density_chosen",
          "lanes": [
            "mass_condensation_candidate",
            "pan",
            "stereo_width"
          ],
          "yields": "five basin bearings plus per-basin depth_gain, rim_sharpness, terrace_count",
          "law": "Mirror may seed; Mirror may not render."
        },
        {
          "id": "inherited_depth",
          "window_segment": "act1.bridge-17-32",
          "window_seconds": [
            706.44,
            707.391
          ],
          "endpoint_marker": "bridge_17_32",
          "lanes": [
            "harmonic_inheritance",
            "tonal_stability"
          ],
          "yields": "descent inherited-distance offset — the 17/32 breach's modal distance enters the ground as sealed lineage"
        }
      ]
    },
    "channels": [
      {
        "id": "descent",
        "story_job": "Relief deepens globally; inherited modal distance arrives as depth.",
        "segment": "act1.doctrine",
        "phase": "substrate_descent",
        "envelope": {
          "attack_window_seconds": [
            1319.392,
            1427.392
          ],
          "curve": "smoothstep",
          "inflection_marker": "doctrine_substrate",
          "sustain_until_seconds": 1825.032,
          "release": "hard_zero_at_severance"
        },
        "operation": "global inward depth bias plus inherited-distance offset from seed_sidecar.inherited_depth",
        "lanes": [
          {
            "lane": "bass",
            "authority": "doctrine.feature_routing: substrate mass",
            "gain": 0.2
          },
          {
            "lane": "low_register_mass",
            "authority": "theory_stage_routes.spectrum_register_and_harmonicity → S3 substrate and baffle surface",
            "gain": 0.2
          },
          {
            "lane": "harmonic_inheritance",
            "authority": "doctrine.feature_routing: strata lineage and reconstruction depth",
            "gain": 0.12
          }
        ],
        "measured_gain_ceiling": 0.3
      },
      {
        "id": "strata",
        "story_job": "Rim-relative terracing accumulates; centuries and residue carry the field below immediate visibility.",
        "segment": "act1.doctrine",
        "phase_span": [
          "substrate_descent",
          "compression_into_mass"
        ],
        "envelope": {
          "attack_window_seconds": [
            1319.392,
            1583.392
          ],
          "curve": "smoothstep",
          "inflection_marker": "doctrine_substrate",
          "sustain_until_seconds": 1825.032,
          "release": "hard_zero_at_severance"
        },
        "operation": "banding measured from each basin's rim; terrace count and depth per basin from seed sidecar",
        "lanes": [
          {
            "lane": "sub",
            "authority": "doctrine.feature_routing: strata compression",
            "gain": 0.22
          },
          {
            "lane": "harmonic_inheritance",
            "authority": "doctrine.feature_routing: strata lineage",
            "gain": 0.14
          }
        ],
        "measured_gain_ceiling": 0.35,
        "note": "spatial_stratification_candidate is an ST2 listener-relative candidate and is not admitted as surface authority."
      },
      {
        "id": "condensation",
        "story_job": "The shell dishes inward beneath each carrier's condensed bearing; the ground answers the ensemble.",
        "segment": "act1.doctrine",
        "phase": "compression_into_mass",
        "envelope": {
          "attack_window_seconds": [
            1427.392,
            1583.392
          ],
          "curve": "smoothstep",
          "sustain_until_seconds": 1825.032,
          "release": "hard_zero_at_severance"
        },
        "operation": "per-basin dishing at bearings sealed from the Mirror-era integral; five distinct basins by construction",
        "lanes": [
          {
            "lane": "mass_condensation_candidate",
            "authority": "theory_stage_routes.attacks_density_and_compression → S3 mass surfaces",
            "gain": 0.24
          },
          {
            "lane": "temporal_compression_candidate",
            "authority": "theory_stage_routes.attacks_density_and_compression → S3 mass surfaces",
            "gain": 0.14
          },
          {
            "lane": "bass",
            "authority": "doctrine.feature_routing: substrate mass",
            "gain": 0.12
          }
        ],
        "measured_gain_ceiling": 0.35
      },
      {
        "id": "scar",
        "story_job": "Collapse interrupts the map; the field rebuilds with the fracture retained.",
        "segment": "act1.doctrine",
        "phase": "rupture_reconstruction",
        "envelope": {
          "attack_window_seconds": [
            1583.392,
            1654.392
          ],
          "curve": "smoothstep",
          "inflection_marker": "doctrine_rupture",
          "sustain_until_seconds": 1825.032,
          "release": "hard_zero_at_severance"
        },
        "operation": "shear across the shell surface — displaced offset with an exposed crimson edge, not a slab boolean through a body; shear offset ≤ scar_shear_ceiling_normalized",
        "retention": "retained forward through maximum_exposure and terminal_procession; absent after backscrub to any t < 1583.392",
        "lanes": [
          {
            "lane": "dissonance_accumulation",
            "authority": "theory_stage_routes.harmony_dissonance_and_release → S3 accumulated pressure lattice",
            "gain": 0.2
          },
          {
            "lane": "tension_release",
            "authority": "theory_stage_routes.harmony_dissonance_and_release → S3 accumulated pressure lattice",
            "gain": 0.14
          },
          {
            "lane": "motif_mutation",
            "authority": "doctrine.feature_routing: branch divergence and retained fracture",
            "gain": 0.1
          }
        ],
        "measured_gain_ceiling": 0.25
      },
      {
        "id": "breadth",
        "story_job": "The system is exposed at maximum breadth; relief opens outward and mineral edges catch light.",
        "segment": "act1.doctrine",
        "phase": "maximum_exposure",
        "envelope": {
          "attack_window_seconds": [
            1654.392,
            1723.392
          ],
          "curve": "smoothstep",
          "inflection_marker": "doctrine_exposure",
          "sustain_until_seconds": 1825.032,
          "release": "hard_zero_at_severance"
        },
        "operation": "relief spatial frequency opens — wider spacing, not deeper cuts; edge brightening stays under the luminance ceiling",
        "lanes": [
          {
            "lane": "air",
            "authority": "doctrine.feature_routing: exposed mineral edges",
            "gain": 0.18
          },
          {
            "lane": "spectral_breadth",
            "authority": "theory_stage_routes.spectrum_register_and_harmonicity → S3 substrate and baffle surface",
            "gain": 0.16
          }
        ],
        "measured_gain_ceiling": 0.3,
        "note": "air_width is an ST2 listener-relative candidate and is not admitted as surface authority."
      },
      {
        "id": "hold",
        "story_job": "Active procession toward severance without acoustic winding down; the procession belongs to the T1 bodies, not the ground.",
        "segment": "act1.doctrine",
        "phase": "terminal_procession",
        "envelope": {
          "window_seconds": [
            1723.392,
            1825.032
          ],
          "behavior": "declared_hold"
        },
        "operation": "no new world behavior — all channels sustain their phase-exit values; no lane may introduce new geometry during the hold",
        "lanes": [],
        "measured_gain_ceiling": 0
      },
      {
        "id": "pressure",
        "story_job": "Substrate pressure is one of the Scherzo's three simultaneous truths; a low tensile lattice bends under the same pulse but never becomes confetti.",
        "segment": "act1.scherzo",
        "birth_protected_event": {
          "time_seconds": 1825.907,
          "event": "first meaningful attack births three co-present light systems"
        },
        "end_protected_event": {
          "time_seconds": 2031.727417,
          "event": "all three lanes remain perceptible through the final release"
        },
        "envelope": {
          "attack_window_seconds": [
            1825.907,
            1827.5
          ],
          "curve": "smoothstep",
          "sustain_until_seconds": 2031.727417,
          "release": "ends with the piece; never fades before the final release"
        },
        "form": "tensile lattice anchored at biosphere_surface with a low-radius component — not relief; the Doctrine relief does not return after severance",
        "authority_source": "scherzo.parallel_lanes.substrate_pressure + material_lane_contracts.scherzo_substrate_pressure",
        "redundant_cues": [
          "tensile lattice topology",
          "biosphere-surface and low-radius location",
          "beat-bent but persistent edge"
        ],
        "lanes": [
          {
            "lane": "sub",
            "authority": "scherzo.parallel_lanes.substrate_pressure.feature_inputs; scherzo.feature_routing: lattice deflection",
            "gain": 0.3
          },
          {
            "lane": "bass",
            "authority": "scherzo.parallel_lanes.substrate_pressure.feature_inputs",
            "gain": 0.2
          },
          {
            "lane": "density",
            "authority": "scherzo.parallel_lanes.substrate_pressure.feature_inputs",
            "gain": 0.16
          }
        ],
        "measured_gain_ceiling": 0.5
      }
    ],
    "severance": {
      "time_seconds": 1825.032,
      "law": "All world channels hard-zero at 1825.032 — no decay, no afterimage, and no Doctrine channel ever returns. Severance is not a pause; Doctrine is severed.",
      "blackout_segment": {
        "id": "act1.blackout",
        "window_seconds": [
          1825.032,
          1825.727
        ]
      },
      "authority": "blackout entry_law: all emitted light equals zero; spatial_law: no afterimage is authored by the renderer",
      "medium_authority": "The severance binds the world layer only. The background medium (starfield, ocean) is authored separately as an approachability lever for an audience not yet known; its luminance across the severance is medium doctrine, measured under its own clause, and is not evidence against world silence."
    },
    "validation_requirements": [
      "If world_program is absent, the runtime refuses the world layer and states the refusal; it never falls back to constants.",
      "Band law: every channel's segment must list biosphere_surface in active_bands and S3 in emitter_classes in the lighting score.",
      "Citation: every channel names a real segment, phase (or protected event), and marker; every envelope window is contained in its cited phase or event span.",
      "Lanes: every lane exists in the 81-lane index; ST2-only listener-relative candidates are rejected as surface drivers.",
      "Ceilings: every lane gain ≤ its channel's measured_gain_ceiling; luminance ceiling ≤ 0.5 × safety_envelope.maximum_reference_white_fraction; displacement and shear ceilings sealed.",
      "Containment: displaced surface remains within normalized band [0.92, 1.0].",
      "Severance: no channel window intersects [1825.032, 1825.727]; every Doctrine channel releases hard-zero at 1825.032 and has no window after it; pressure begins at ≥ 1825.907.",
      "Motion: no world transform term is a function of wall-clock or render time (ambient_motion false).",
      "Materials: every color constant resolves to an authored movement palette reference.",
      "Seed: sidecar sha256 matches; derivation windows and lanes match the declared list.",
      "Reseal: manifest_sha256 recomputed; version bump; source-and-currentness receipt records the move from unauthored runtime constants to sealed score."
    ],
    "verification": {
      "observer_slices": "the twelve authored previsualization slices N0–N3, E0–E3, S0–S3 from the stage adapter observer_shell — not ad hoc camera tumbling",
      "media": [
        "milky_way_outer_space",
        "ocean_underwater"
      ],
      "reduction_modes": [
        "normal color",
        "grayscale",
        "protan-like",
        "deutan-like",
        "tritan-like"
      ],
      "captures": [
        {
          "t": 548,
          "expect": "absence — no world emission (Mirror; authored absence)"
        },
        {
          "t": 706.9,
          "expect": "absence — no world emission (Bridge; authored absence)"
        },
        {
          "t": 1014,
          "expect": "absence — no world emission (Witness; authored absence)"
        },
        {
          "t": 1380,
          "expect": "descent legible, recessive; no horizon in any slice"
        },
        {
          "t": 1500,
          "expect": "five distinct basins dishing; rim-relative terracing; no two basins identical"
        },
        {
          "t": 1618,
          "expect": "scar shear present with exposed crimson edge"
        },
        {
          "t": 1684,
          "expect": "relief frequency opened; edges within luminance ceiling"
        },
        {
          "t": 1770,
          "expect": "declared hold — frame differs from 1723.392 only by sustained-lane modulation"
        },
        {
          "t": 1825.4,
          "expect": "world silence — the world layer emits absolute zero across the severance; the background medium is a decoupled thematic lever and is not the world layer's to extinguish"
        },
        {
          "t": 1845,
          "expect": "three lanes co-present; lattice legible with two non-color cues; Doctrine relief absent"
        },
        {
          "t": 1962.227,
          "expect": "widest crowd field; lattice remains legible and never becomes confetti"
        },
        {
          "t": 1600,
          "condition": "after backscrub from 1618",
          "expect": "no history — the state reached by scrubbing 1618 back to 1600 is identical to a cold seek to 1600: scar at its lawful rupture_reconstruction envelope value (unmade from its 1618 value, not carried), basins at their integral-to-1600 state, frame pixels unchanged between the two paths",
          "note": "1600 lies inside rupture_reconstruction (1583.392-1654.392), so the scar is lawfully present here. What backscrub must prove is absence of residue, not absence of scar: every channel is a pure function of carrier time plus current lanes, with no playback history."
        }
      ]
    }
  }
}