Antitrust Radar
Bilateral Antitrust Radar evidence routeTwo canonical nodes connect through separately colored declared relationship edges and common evidence nodes.Profile ADeclared edgeCommon nodeDeclared edgeProfile B

Bilateral evidence profiles

Relationship studio

Compare two profiles through their documented relationships and shared records. An indirect connection is not evidence of a direct relationship.

Current declared routeTumblrSocial referrals1 shortest paths / 0 common neighbors / 1 supporting edges
Comparable nodes5,478canonical nodes
Declared edges19,193auditable links
Relationship layers4kept separate
Inferred endpoint links0from path proximity
Route contractEvery line is declared. Multi-hop proximity never becomes a direct endpoint claim.Evidence standard

Bilateral query

Build an exact profile-to-profile route

Profile A / ProductsTumblrLatest sourced share / 0.29%
20 profiles directly connected to Social referrals
Profile B / MarketsU.S. social-media referral trafficLatest HHI / 4,995
1 profiles directly connected to Tumblr
Relationship familyAll declared linksEvery encoded relationship family
Declared route sets

Declared bilateral profile

Tumblr Social referrals

All declared links / 1 hop
Shortest route
1declared hop
Shortest paths
1deterministic routes
Common neighbors
0exact intersections
Packet edges
11 cited sources
Relationship diagnosisWhat the selected graph can and cannot establish
Connection classDirect declaration1 endpoint edge
Neighborhood overlap0.0%0 shared across 21 unique adjacent profiles
Selected-layer degree2 vs 2119 neighbor difference
Supporting evidence1 cited source1 exact packet edges
high0medium1bounded0low0
Profile A / ProductsTumblr1 market / 4 rows
Latest sourced share
0.29%
Selected-layer neighbors
2
Total neighbors
2
Latest year
2026
Connection fingerprint
Measurement1
Organization1
Enforcement0
Research0
Markets1Operators1
Open canonical profile
Declared routes from Tumblr to U.S. social-media referral trafficThe primary shortest path is centered. Additional exact common neighbors appear above or below it. Every line is a declared edge and does not imply a direct endpoint relationship.TumblrProductsTumblr: Latest sourced share 0.29%Social referralsMarketsU.S. social-media referral traffic: Latest HHI 4,995
MeasurementOrganizationEnforcementResearch
Route 01 / 1 hop

TumblrSocial referrals

Profile B / MarketsU.S. social-media referral trafficUnited States / 2026
Latest HHI
4,995
Selected-layer neighbors
21
Total neighbors
21
Latest year
2026
Connection fingerprint
Measurement17
Organization0
Enforcement0
Research4
Products12Industries1Issues1Indicators3Publications3Sources1
Open canonical profile

Supporting edge ledger

Every bridge remains an inspectable declaration

1 exact edges support the shortest paths and common-neighbor intersections in this layer.

MeasurementSource-labeled participantmarket participation

Tumblr appears in the Social referrals source row for 2026 at 0.29%.

Social media referral share in United States of America April 2026mediumSource

Bilateral graph contract

A route is not a finding about its endpoints

Each hop keeps its own evidence label, confidence, source custody, and edge-specific limitation.

A bilateral atlas route preserves a sequence of declared edges for navigation and audit. A direct edge, common neighbor, or multi-hop path does not make the endpoints equivalent, establish ownership or control, assign liability, define an antitrust market, make unlike measures comparable, or show causation.

Reusable bilateral packet

Carry the exact route into analysis

JSON preserves endpoints, shortest paths, common neighbors, nodes, and edge metadata. CSV flattens the complete supporting ledger.

JSON comparison/api/public/atlas?left=participant%3Acmp-tumblr&right=market%3Amkt-social-referralCSV edge ledgerExact supporting declarationsSingle-profile atlasReturn to focused neighborhoods
Atlas Relationship Studio | Antitrust Radar