# Public-data parity methodology

> How High Signal verifies public-data capability coverage against referenced intelligence tools while disclosing premium and restricted gaps.

Canonical: https://highsignal.app/methodology/data-parity

methodology · verified 2026-08-11


This ledger compares data capabilities, not source count, language coverage, latency, proprietary models, or licensed archives. A covered capability must map to a live High Signal source or an implemented product workflow. Partial and unavailable rows stay visible until the underlying access genuinely changes.

[publication methodology →](https://highsignal.app/methodology)[live source directory →](https://highsignal.app/data)

## material gaps we do not rename as parity

- premium broker and analyst research

- expert-call libraries

- licensed private-company datasets

- real-time global earnings audio, transcripts, and slides

- dependable X, LinkedIn, and TikTok firehoses

7 attributable references

## capability ledger

Covered source mappings are regression-tested against the generated source catalog.

### The Daily Diff

[official reference ↗](https://tdd.cat/)

covered

Hacker News, GitHub, and research-paper discovery

High Signal applies its own evidence gate and does not copy story volume or delay rules.

sources · hackernews · github · semantic-scholar

### Octolens

[official reference ↗](https://octolens.com/features)

covered

Developer, community, video, podcast, newsletter, and news monitoring

Coverage is batch intelligence, not a real-time mention-delivery SLA.

sources · reddit · github · hackernews · youtube · bluesky · stackexchange · dev-ecosystems · podcast-index · substack · producthunt · news

partial

X, LinkedIn, TikTok, and Medium monitoring

No dependable first-party X, LinkedIn, TikTok, or Medium firehose is claimed.

sources · news · bluesky

### Peekaboo

[official reference ↗](https://www.aipeekaboo.com/features/citation-sources)

covered

Multi-model answer and citation-source tracking

Provider coverage depends on configured credentials; Google AI Mode remains partial.

product capability · Mentions/OpenLens visibility matrix, cited URL index, and provider fan-out

### Subreddit Signals

[official reference ↗](https://www.subredditsignals.com/)

covered

Reddit posts/comments, buyer intent, pain points, competitor context, and reply drafting

Managed service, conversion attribution, and real-time delivery claims are not compared.

sources · reddit

### AlphaSense

[official reference ↗](https://help.alpha-sense.com/hc/en-us/articles/41921559843475-Content-Overview)

covered

Company filings, press releases, news, regulatory, and macro sources

Coverage is public and curated rather than an enterprise searchable document universe.

sources · edgar · sec-xbrl · ir · hkex · news · gov · global-macro

unavailable

Broker research, expert calls, and licensed private-company data

High Signal does not license these premium or proprietary datasets.

### Quartr

[official reference ↗](https://quartr.com/docs/introduction)

covered

First-party filings, reports, and investor-relations updates

High Signal links public documents and does not claim Quartr-scale global company coverage.

sources · edgar · sec-xbrl · ir · hkex

unavailable

Live earnings audio, real-time transcripts, backlog transcripts, and slides

No equivalent licensed real-time global earnings media dataset is present.

### RavenPack

[official reference ↗](https://www.ravenpack.com/solutions/alpha-generation/commodities)

covered

News/social observations, entity mapping, and relationship graphs

No parity claim is made for proprietary models, source volume, languages, or latency.

sources · news · gdelt · reddit · hackernews · github · techmeme