Cross-Check: Entities & Effects

How testimonies describe who/what was encountered, and any physical or environmental effects reported alongside it. Deterministic keyword tags, auto-applied on import — always a starting point to correct, not a verified classification.

Entity Type

What kind of being, if any, was described

Reported Effects

Physical/environmental effects noted (an incident may report more than one; curated + NUFORC)

Mapping the Visitors: Behavior & Intent

How the encountered phenomenon behaved, and any intent the witness attributed to it. Same caveat as above — a read of how the testimony describes itself, not a claim about what’s real.

Behavior Type

Observed conduct toward the witness or surroundings

Unspecified
Passive observer
Clinical examiner
Interactive/responsive
Aggressive/pursuant

Claimed Intent

Purpose attributed to the phenomenon by the witness/source, if any

Undisclosed/none given130 · 96%
Ecological/biological stewardship3 · 2%
Spiritual guidance/teaching2 · 1%

By Region

Collection-weighted, by credibility tier

A · Sensor + Reviewed
B · Sensor
C · Multi-witness
D · Single-source

Type of Story / Experience

Controlled-vocabulary phenomenon category (curated + NUFORC)

About UCD

UCD restructures publicly released UAP records into individually verified, comparable incidents rather than raw documents — so patterns across time, geography, and phenomenon type can actually be examined instead of buried in file counts. Every incident is scored on a credibility tier (evidentiary weight, not how dramatic the account sounds) so the record can be filtered down to only the cases that can actually support a claim.

Credibility tiers

Tier A — sensor/physical-evidence corroborated and/or formally reviewed with a stated confidence rating.
Tier B — sensor, radar, IR, or FMV contact logged in real time, no formal review.
Tier C — multi-witness or institutionally documented narrative, no sensor data.
Tier D — single-source, secondhand, or thin narrative.

Contribute

Have a source document describing a UAP incident? Anyone can submit one for review — it stays off the dashboard until a curator verifies and publishes it.

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