Paper Citation Record · LEDGER

DDF operators, open string coherent states and their scattering amplitudes

As of 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1902.07016.

A citation records a reference. It does not transfer a finding from one paper to another.

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 2 of 2 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-21T06:32:19.484+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-15T19:43:10.753114Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: arxiv_reference, observed 2026-07-04T18:50:04.984463Z

0 of 0 outbound references displayed

External citation measurements

No source-named external measurement is stored.

No outbound reference observations are available for this paper version.

Observation a2d21b88-afbb-4198-a1a7-5a41e252f0d6 · inbound

Reference 88

Resolution: unresolved; no resolver link, observed 2026-08-15T19:43:10.753114Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 027971f6-507f-4b6d-a5c5-46393ebf5b4a · inbound

Reference 7

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.