Unresolvable Identifier

arXiv:2604.19068 · detector doi_compliance · cross_source · 2026-05-20 03:23:23.702026+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1016/j.cnsns.2020.10557' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

T. Kapela and M. Mrozek and D. Wilczak and P. Zgliczyński. CAPD::DynSys: a flexible C++ toolbox for rigorous numerical analysis of dynamical systems. Communications in Nonlinear Sci. and Numerical Simulation. doi:https://doi.org/10.1016/j.cnsns.2020.10557

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1016/j.cnsns.2020.10557",
  "raw_excerpt": "T. Kapela and M. Mrozek and D. Wilczak and P. Zgliczy\u0144ski. CAPD::DynSys: a flexible C++ toolbox for rigorous numerical analysis of dynamical systems. Communications in Nonlinear Sci. and Numerical Simulation. doi:https://doi.org/10.1016/j.cnsns.2020.10557",
  "ref_index": 89,
  "verdict_class": "cross_source"
}