{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:XJ4ARSO547UOCO2S3G5VFWH45W","short_pith_number":"pith:XJ4ARSO5","schema_version":"1.0","canonical_sha256":"ba7808c9dde7e8e13b52d9bb52d8fced9f92ff0bbdf470111c0f79086697672b","source":{"kind":"arxiv","id":"1711.01961","version":1},"attestation_state":"computed","paper":{"title":"Intrinsic Entropy Perturbations from the Dark Sector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Denis Comelli, Luigi Pilo, Marco Celoria","submitted_at":"2017-11-03T15:21:41Z","abstract_excerpt":"Perfect fluids are modeled by using an effective field theory approach which naturally gives a self-consistent and unambiguous description of the intrinsic non-adiabatic contribution to pressure variations. We study the impact of intrinsic entropy perturbation on the superhorizon dynamics of the curvature perturbation ${\\cal R}$ in the dark sector. The dark sector, made of dark matter and dark energy is described as a single perfect fluid. The non-perturbative vorticity's dynamics and the Weinberg theorem violation for perfect fluids are also studied."},"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":"1711.01961","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-03T15:21:41Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"02419cc93c5271b1b0347e0d23c7e429c0a05bdb7053177b37b588aceedb847a","abstract_canon_sha256":"a08e112b05d0d1359806af66c9f4ea3f6eac446f608594f8574e5089e12be3e0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:05.872018Z","signature_b64":"m8NvLFoQniWQ/Del1gOOc6U5I5Qy6aPrBvE2XJyaC+ePBJiCPTYVo0GXjyqNcE7JYtA4znUMLdzKKIfu3ScnCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba7808c9dde7e8e13b52d9bb52d8fced9f92ff0bbdf470111c0f79086697672b","last_reissued_at":"2026-05-18T00:20:05.871357Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:05.871357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Intrinsic Entropy Perturbations from the Dark Sector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Denis Comelli, Luigi Pilo, Marco Celoria","submitted_at":"2017-11-03T15:21:41Z","abstract_excerpt":"Perfect fluids are modeled by using an effective field theory approach which naturally gives a self-consistent and unambiguous description of the intrinsic non-adiabatic contribution to pressure variations. We study the impact of intrinsic entropy perturbation on the superhorizon dynamics of the curvature perturbation ${\\cal R}$ in the dark sector. The dark sector, made of dark matter and dark energy is described as a single perfect fluid. The non-perturbative vorticity's dynamics and the Weinberg theorem violation for perfect fluids are also studied."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01961","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1711.01961","created_at":"2026-05-18T00:20:05.871455+00:00"},{"alias_kind":"arxiv_version","alias_value":"1711.01961v1","created_at":"2026-05-18T00:20:05.871455+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01961","created_at":"2026-05-18T00:20:05.871455+00:00"},{"alias_kind":"pith_short_12","alias_value":"XJ4ARSO547UO","created_at":"2026-05-18T12:31:53.515858+00:00"},{"alias_kind":"pith_short_16","alias_value":"XJ4ARSO547UOCO2S","created_at":"2026-05-18T12:31:53.515858+00:00"},{"alias_kind":"pith_short_8","alias_value":"XJ4ARSO5","created_at":"2026-05-18T12:31:53.515858+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W","json":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W.json","graph_json":"https://pith.science/api/pith-number/XJ4ARSO547UOCO2S3G5VFWH45W/graph.json","events_json":"https://pith.science/api/pith-number/XJ4ARSO547UOCO2S3G5VFWH45W/events.json","paper":"https://pith.science/paper/XJ4ARSO5"},"agent_actions":{"view_html":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W","download_json":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W.json","view_paper":"https://pith.science/paper/XJ4ARSO5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1711.01961&json=true","fetch_graph":"https://pith.science/api/pith-number/XJ4ARSO547UOCO2S3G5VFWH45W/graph.json","fetch_events":"https://pith.science/api/pith-number/XJ4ARSO547UOCO2S3G5VFWH45W/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W/action/storage_attestation","attest_author":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W/action/author_attestation","sign_citation":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W/action/citation_signature","submit_replication":"https://pith.science/pith/XJ4ARSO547UOCO2S3G5VFWH45W/action/replication_record"}},"created_at":"2026-05-18T00:20:05.871455+00:00","updated_at":"2026-05-18T00:20:05.871455+00:00"}