A.15.1:5.4 - Identity and reidentification of Work

Two descriptions, assertions, records, or traces resolve to the same Work occurrence only when they designate the same actual world-side performance history, not merely the same name, policy label, similar policy content, or later date. First compare the direct facts at the selected grain:

• the same actual work-entry or start and compatible occupied spatiotemporal extent;
• the same performance history, with each actual performer System’s A.13 basis, enacted Method, and the locally declared containing-system relations used by the identity claim, plus every actually obtaining work-to-referent, binding, and resource-use fact used by that claim, placed at the interval where it obtains; any separately asserted F.6 relation remains an attribution fact rather than a Work-identity discriminator;
• compatible work-part and temporal relations; and
• no fact that already identifies distinct individuals: a proper part versus its parent, independently grounded concurrent performances, or a later work-entry after the first occurrence’s established completion or termination.

A corrected or later description of the same actual start, open end, or completed end can refine the assertion without changing the occurrence. A change of performer, assignment, enacted Method, referent, binding, resource use, or obtaining containing-system relation during an otherwise unended performance history is an actual change to state explicitly; that change alone neither splits nor preserves the Work occurrence.

When a named receiving use must decide whether an interruption, resumption, method or mode switch, performer replacement, retune, rework, referent or binding change, or composite boundary stays inside one parent, cite the exact continuity-policy episteme, its effective reference scheme, applicable scope and window, and the branch criterion it applies to those facts. The selected policy can support one identity or segmentation assertion for that use. A later or competing policy episteme may support another assertion; call it a later edition only when the exact C.2.1 EpistemeEditionRelation obtains, and otherwise treat it as a non-continuing replacement. Neither branch retroactively changes what occurred.