When and where was Springheel Jack encounter documented?

This encounter was documented on 1837 in an unspecified location.

What sources and physical claims back the Springheel Jack encounter record?

The ANOMALY archive indexes 1 independent source citations across 2 claims, achieving a provenance completeness score of 71%.

ENC-3347LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: approximateRECORD COMPLETENESS: 71%

1837

A woman named Jane Alsop was attacked by a tall, thin, and powerful creature with glowing red eyes and claw-like fingers.

// PROVENANCE COVERAGE

This measures documentation coverage, not whether the encounter or its claims are true.

1 SOURCES · 1 PRIMARY

Date documented

1837

Location documented

No location record is linked.

Map coordinates available

No latitude/longitude is available for mapping.

Catalogue classification linked

3 family link(s), 1 case-specific component(s).

Published citation-backed claims

0 encounter-target claim(s), 2 component claim(s).

Source coverage

1 unique source edition(s); 1 marked primary for at least one claim.

Assessment has encounter-level provenance

No substantive assessment fields require provenance.

This dossier currently depends on a single source edition; independent coverage would strengthen comparison.