Similar-50 canonicalization — 2026-04-19 · Memos

artifacts/company_deep/similar_50.json is the immutable record of the Jina-v5 cosine run that seeded the /companies library with 50 peer candidates relative to the 14 anchor slugs. On 2026-04-19 we audited that set and removed every row that was not a canonical operating company.

Kept (11 rows, now first-class library entries)

optimizerx-corporation · #833848 · OptimizeRx Corporation (NASDAQ: OPRX)
universal-health-services · #629634 · Universal Health Services (NYSE: UHS)
sharp-healthcare · #673584 · Sharp HealthCare (San Diego)
prime-healthcare · #673545 · Prime Healthcare (~45 hospitals)
deloitte-canada · #573586 · Deloitte Canada
deloitte-risk-financial-advisory · #1317492 · Deloitte Risk & Financial Advisory
marsh-mclennan · #825797 · Marsh McLennan (NYSE: MMC)
magnachip-semiconductor-corp · #827137 · MagnaChip Semiconductor (NYSE: MX)
skyworks-solutions · #856177 · Skyworks Solutions (NASDAQ: SWKS)
smic · #387081 · SMIC (0981.HK)
meta-platforms-inc · #389485 · Meta Platforms (NASDAQ: META)

Promoted out of Similar-50 to first-class anchors (4 rows)

These were kept but moved into the "UnitedHealth / Optum family" section of frontend/src/lib/company-library.ts:

unitedhealth-group-incorporated · #737992 · UnitedHealth Group
optum-care · #1166349 · Optum Care
optumrx · #427873 · OptumRx
optum-bank · #1166348 · Optum Bank

Dropped (35 rows)

Every dropped row still lives in the KG and is reachable via /entities/<id>; it is only hidden from /companies.

Products / AI models / tickers / internal teams (13)

#408286 PLTR (ticker for Palantir)
#438189 Palantir AIP (product)
#125182 Artificial Intelligence Platform (product)
#331672 Artificial Intelligence Platform (AIP) (product)
#438373 Claude Opus 4.5 (AI model)
#5854 Claude Opus 4.6 (AI model)
#437789 Developer Tools (team within Palantir)
#704237 MetaAI (product)
#464226 Ent.AI (product)
#700706 HackAPrompt (event / program)
#1165083 European Union AI Office (regulatory body)
#492493 Semiconductor (category)
#690284 Alt-Web.Xyz (unclear origin)

Name duplicates of existing anchors (6)

#363315 Palantir Technologies (PLTR) → palantir
#489841 PricewaterhouseCoopers (PwC) → pwc
#431616 McKinsey & Co. → mckinsey
#594789 BCG → bcg
#375771 Enthropic (misspelling) → anthropic
#419587 Moder (ambiguous near palantir)

Placeholder / category rows (5)

#442282 Healthcare Company (empty description)
#701859 U.S. Health Insurers (category)
#701749 US health insurers (category)
#714202 Private Insurers (category)
#406944 Consulting Firm (category)

Unrelated or off-topic (11)

#568405 Revolut (fintech — only cosine-close to Revvia by name)
#540005 ProtectSubrev
#628834 Optimum (cable ISP)
#629070 Optimum Health Solutions
#690140 Quick Group
#856943 TechCreate Group Ltd
#629818 Benetti Group
#773877 BGSF Inc
#7517 FT Strategies
#63275 Henley & Partners
#352759 TWG Global

Follow-up

The four promoted UHG/Optum rows and Birdsong Capital Partners are currently scoped to shared env 40 (or env 16 for Birdsong). Each still needs:

A dedicated Supabase environments row (see scripts/ensure_company_environments.py).
A per-company seed_company_deep/data/<slug>.py CompanySpec module with TandemStride-density people/BUs/markets/funding/RIOH content.
Re-pointing environments.py + company-environments.ts to the new env IDs.

Once all three are complete for a given slug, flip Birdsong's override_href in company-library.ts from /health/birdsong back to the default /companies/birdsong-capital.

Similar-50 canonicalization — 2026-04-19