UNNS STRUCTURAL ANALYSIS PIPELINE
Domain: Seismic Waveform (Non-sensitive event)
Status: DATA READY (SAC → CSV completed)

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0. OBJECTIVE
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Test cross-domain structural invariance:

Supernova (Δmag ladder)
vs
Seismic event (Δamplitude ladder)

Target:
Extract m(L_t) trajectory and compare regime structure.

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1. INPUT DATA (CURRENT FOLDER)
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RAW:
- IU.MIDW.00.BHZ...SAC
- IU.RAO.00.BHZ...SAC
- IU.HNR.00.BHZ...SAC

CONVERTED:
- IU.MIDW...csv
- IU.RAO...csv
- IU.HNR...csv

FORMAT:
time, amplitude

Status: ✔ VALID

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2. DATA VALIDATION (MANDATORY CHECK)
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Each CSV must show:

- low baseline noise
- sharp primary spike
- decay tail

Reject if:
- flat signal
- multi-burst chaos
- clipped/saturated waveform

Select ONE best station for primary analysis.

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3. STRUCTURAL OBSERVABLE CONSTRUCTION
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DO NOT USE:
L = amplitude(t)

USE:
L = Δamplitude(t)

Procedure:

1. Sort by time
2. Compute:

   ΔA_t = |A(t+1) - A(t)|

3. Apply smoothing (light):

   rolling mean (window = 3–7)

4. Remove zeros / noise floor if needed

Result:
Structural observable ladder L

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4. LADDER GENERATION
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Input:
ΔA_t sequence

Steps:

- enforce monotonic ordering
- optional normalization (not required for structure)
- export:

   ladder_seismic_dA.txt

Format:
one value per line

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5. STRUC_PERC ANALYSIS
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Load ladder into STRUC_PERC_I

Settings:
- Domain adapter: Generic
- Grid: default (17)
- No preprocessing inside chamber

Expected outputs:
- regime classification (FULL / TAIL / HARD)
- giant ratio
- fragmentation index
- k_conn curve
- margin structure

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6. MARGIN TRAJECTORY EXTRACTION
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Compute:

m(L_t)

Track:

- monotonicity
- collapse regions
- plateau / tail behavior

Compare with SN Ia result:

SN:
Δmag → FULL percolation

Seismic:
Δamp → ?

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7. CROSS-DOMAIN COMPARISON TABLE
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| Domain   | Observable | Verdict | Tail ratio | Tail dominance | Class |
|----------|-----------|---------|------------|----------------|-------|
| SN Ia    | Δmag      | FULL    | ~140x      | high           | admissible |
| Seismic  | Δamp      | ?       | ?          | ?              | ? |

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8. INTERPRETATION TARGET
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We are NOT comparing physics.

We are testing:

"structural response under rapid energy release"

Key question:

Do both systems produce:

- admissible ladders
- strong tail structure
- consistent m(L_t) collapse behavior

If YES →
evidence for UNNS structural universality.

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9. NEXT EXTENSIONS
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After seismic validation:

Add:
- volcanic signals
- nuclear test data (if accessible)
- controlled lab explosions

Goal:
Define class:

"Admissible heavy-tail dynamical systems"

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10. CURRENT STATE
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✔ Real seismic data acquired (https://ds.iris.edu/pub/userdata/wilber/unns/2026-05-05-mb49-south-sandwich-islands-region/sac_data/)
✔ SAC → CSV conversion complete
✔ Ready for Δobservable construction
⏳ Awaiting ladder generation + STRUC_PERC run

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END OF PIPELINE
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