{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:MM4SOJP5QS7PDVOWVMDBOLK3SF","short_pith_number":"pith:MM4SOJP5","schema_version":"1.0","canonical_sha256":"63392725fd84bef1d5d6ab06172d5b915cd7b8924e4075e8d102ca369f04c0dc","source":{"kind":"arxiv","id":"2105.00361","version":4},"attestation_state":"computed","paper":{"title":"Dynamical stability of K-essence field interacting non-minimally with a perfect fluid","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Anirban Chatterjee, Kaushik Bhattacharya, Saddam Hussain","submitted_at":"2021-05-02T00:16:05Z","abstract_excerpt":"We study models of non-minimally coupled relativistic fluid and $k$-essence scalar field in the background of a flat Friedmann-Lemaitre-Robertson-Walker universe. The non-minimal coupling term is introduced in the Lagrangian level. We employ the variational approach with respect to independent variables that produce modified $k-$essence field equations and the Friedmann equations. We have analyzed the coupled field-fluid framework explicitly using the dynamical system technique considering two different models based on inverse power-law potential. After examining these models it is seen that b"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2105.00361","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-05-02T00:16:05Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"5758aa7edd53e5a2b6abe66443705bb4d94046744cfc1fddd84d33dc6d9cae55","abstract_canon_sha256":"882bc6aa592414f93b2801b83ba142c0941e04c394578dbb86dc289f96bf2145"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:31:26.839767Z","signature_b64":"GIZI8JGkaoVCzZPORIMTz5e3vHvNmY2dOOL849Sfm4qnoRCEQBlRBc+NmL/5VQY39SA7OCgOdGZ4fexl0b6pDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63392725fd84bef1d5d6ab06172d5b915cd7b8924e4075e8d102ca369f04c0dc","last_reissued_at":"2026-07-05T03:31:26.839309Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:31:26.839309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamical stability of K-essence field interacting non-minimally with a perfect fluid","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Anirban Chatterjee, Kaushik Bhattacharya, Saddam Hussain","submitted_at":"2021-05-02T00:16:05Z","abstract_excerpt":"We study models of non-minimally coupled relativistic fluid and $k$-essence scalar field in the background of a flat Friedmann-Lemaitre-Robertson-Walker universe. The non-minimal coupling term is introduced in the Lagrangian level. We employ the variational approach with respect to independent variables that produce modified $k-$essence field equations and the Friedmann equations. We have analyzed the coupled field-fluid framework explicitly using the dynamical system technique considering two different models based on inverse power-law potential. After examining these models it is seen that b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.00361","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.00361/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2105.00361","created_at":"2026-07-05T03:31:26.839374+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.00361v4","created_at":"2026-07-05T03:31:26.839374+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.00361","created_at":"2026-07-05T03:31:26.839374+00:00"},{"alias_kind":"pith_short_12","alias_value":"MM4SOJP5QS7P","created_at":"2026-07-05T03:31:26.839374+00:00"},{"alias_kind":"pith_short_16","alias_value":"MM4SOJP5QS7PDVOW","created_at":"2026-07-05T03:31:26.839374+00:00"},{"alias_kind":"pith_short_8","alias_value":"MM4SOJP5","created_at":"2026-07-05T03:31:26.839374+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2507.05207","citing_title":"Interacting Scalar Fields as Dark Energy and Dark Matter in Einstein scalar Gauss Bonnet Gravity","ref_index":52,"is_internal_anchor":false},{"citing_arxiv_id":"2508.08638","citing_title":"Interacting bosonic dark energy and fermionic dark matter in Einstein scalar Gauss-Bonnet gravity","ref_index":70,"is_internal_anchor":false},{"citing_arxiv_id":"2509.09202","citing_title":"Interacting $k$-essence field with non-pressureless Dark Matter: Cosmological Dynamics and Observational Constraints","ref_index":71,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF","json":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF.json","graph_json":"https://pith.science/api/pith-number/MM4SOJP5QS7PDVOWVMDBOLK3SF/graph.json","events_json":"https://pith.science/api/pith-number/MM4SOJP5QS7PDVOWVMDBOLK3SF/events.json","paper":"https://pith.science/paper/MM4SOJP5"},"agent_actions":{"view_html":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF","download_json":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF.json","view_paper":"https://pith.science/paper/MM4SOJP5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.00361&json=true","fetch_graph":"https://pith.science/api/pith-number/MM4SOJP5QS7PDVOWVMDBOLK3SF/graph.json","fetch_events":"https://pith.science/api/pith-number/MM4SOJP5QS7PDVOWVMDBOLK3SF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF/action/storage_attestation","attest_author":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF/action/author_attestation","sign_citation":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF/action/citation_signature","submit_replication":"https://pith.science/pith/MM4SOJP5QS7PDVOWVMDBOLK3SF/action/replication_record"}},"created_at":"2026-07-05T03:31:26.839374+00:00","updated_at":"2026-07-05T03:31:26.839374+00:00"}