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Historical method · Source-visible archive

Measure only what the method can support.

First100 separates source-visible listener intent from verified behavioral evidence. The labels never blur together, and a method update never rewrites a historical Song Passport.

Looking for the current blind panel?

This page preserves the earlier source-visible campaign method and its historical HSS proposal. It does not describe the current private-upload panel or Suno Quick Signal. Historical score records keep their original methodology.

Read the live blind-panel methodology →
Historical source-visible method

LSI‑1.0 · Link Signal Index

Method label: source-visible/unverified

LSI

= 0.35R + 0.25S + 0.20N + 0.20O

Input mapping

Replay intent · 35%
Yes = 100, Maybe = 50, No = 0
Save intent · 25%
Yes = 100, Maybe = 50, No = 0
Recommendation · 20%
Yes = 100, Maybe = 50, No = 0
Overall · 20%
1 = 0, 2 = 25, 3 = 50, 4 = 75, 5 = 100

First-minute hold and completion receive zero LSI weight. Any Source Visible hold/completion question is an optional self-report diagnostic, never behavioral evidence.

What makes one review valid

  1. It belongs to one unique random assignment for an eligible 90-second-to-6-minute source.
  2. The listener has at least 60 seconds of active in-session opportunity and explicitly attests to that fact.
  3. Replay, Save, Recommend, and Overall are all answered with no defaults.
  4. Duplicate, self-review, ownership-overlap, rate, and integrity checks pass.
  5. The creator’s 10-SC reservation settles and the listener earns a fixed 5 SC; 5 SC is recorded as a system sink.
A timer, outbound click, tab switch, or time away is not playback proof. Source Visible reviews are never called verified playback, completion, no-seek, or blind.

Member and guest influence

Authenticated member
Raw weight 1.00
Guest
Raw weight 0.25
Guest cap
Effective guest weight = min(0.25 × valid guests, 0.25 × valid members). Guests therefore remain at or below 20% of combined effective weight.
Zero member reviews
Show Open Signal only. Do not publish a primary LSI score.

Raw review count, effective qualified sample, member/guest mix, exclusions, and method version remain visible together.

Milestones and confidence

25Provisional

At least 20 member reviews; no more than 5 guests count.

100Human Tested

At least 80 member reviews; no more than 20 guests count.

300High Confidence

At least 240 member reviews; no more than 60 guests count.

Milestones count unique valid humans, never issued, expired, refunded, duplicate, invalid, quarantined, or fractional assignments.

Disabled

HSS‑1.0 · verified Blind Ear only

HSS requires genuine source concealment plus trustworthy play, seek, time, duration, and ended telemetry. Official Suno documentation does not establish those interfaces, so First100 does not calculate HSS.

First-minute hold
25%
Verified weighted completion
20%
Replay intent
20%
Save intent
15%
Recommendation
10%
Overall response
10%

Comparability and history

  • HSS and LSI scores, charts, percentiles, and Passports never merge.
  • A percentile appears only after 25 eligible songs exist in the exact comparable cohort.
  • A revised, remixed, extended, or recreated recording receives a new Song Version and new score.
  • Every score snapshot records the exact method, inputs, denominators, exclusions, and generation time.
  • AI/provenance and rights status are metadata, never a scoring penalty.