{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:O3Z5D5GHTBL25UZBJ6WPEWZPDP","short_pith_number":"pith:O3Z5D5GH","schema_version":"1.0","canonical_sha256":"76f3d1f4c79857aed3214facf25b2f1bf7c3f6b433a5af935a9028fefc3e8b88","source":{"kind":"arxiv","id":"1602.06557","version":1},"attestation_state":"computed","paper":{"title":"Invisible QCD as Dark Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","gr-qc"],"primary_cat":"hep-th","authors_text":"Antonino Marcian\\`o, Stephon Alexander, Zhi Yang","submitted_at":"2016-02-21T17:51:10Z","abstract_excerpt":"We account for the late time acceleration of the Universe by extending the QCD color to a $SU(3)$ invisible sector (IQCD). If the Invisible Chiral symmetry is broken in the early universe, a condensate of dark pions (dpions) and dark gluons (dgluons) forms. The condensate naturally forms due to strong dynamics similar to the Nambu--Jona-Lasinio mechanism. As the Universe evolves from early times to present times the interaction energy between the dgluon and dpion condensate dominates with a negative pressure equation of state and causes late time acceleration. We conclude with a stability anal"},"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":"1602.06557","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-02-21T17:51:10Z","cross_cats_sorted":["astro-ph.GA","gr-qc"],"title_canon_sha256":"f508731eb26e397c85557040151d467920f19341aa3ef7cc1129460537620a6a","abstract_canon_sha256":"f71b97e1129a35a12d45352d3de37d1c4c03c4abc79ba625f14cf2a816ac5568"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:13.708301Z","signature_b64":"XiPE3RuhLgVp1bfcFEl+zffIBLMVWjIT2hUM1IWk2kwIFn9P1+cxN+mTpyO1brjLqr8q7J7pxDQlxKolNBokBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76f3d1f4c79857aed3214facf25b2f1bf7c3f6b433a5af935a9028fefc3e8b88","last_reissued_at":"2026-05-18T01:20:13.707792Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:13.707792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Invisible QCD as Dark Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","gr-qc"],"primary_cat":"hep-th","authors_text":"Antonino Marcian\\`o, Stephon Alexander, Zhi Yang","submitted_at":"2016-02-21T17:51:10Z","abstract_excerpt":"We account for the late time acceleration of the Universe by extending the QCD color to a $SU(3)$ invisible sector (IQCD). If the Invisible Chiral symmetry is broken in the early universe, a condensate of dark pions (dpions) and dark gluons (dgluons) forms. The condensate naturally forms due to strong dynamics similar to the Nambu--Jona-Lasinio mechanism. As the Universe evolves from early times to present times the interaction energy between the dgluon and dpion condensate dominates with a negative pressure equation of state and causes late time acceleration. We conclude with a stability anal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06557","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":"1602.06557","created_at":"2026-05-18T01:20:13.707866+00:00"},{"alias_kind":"arxiv_version","alias_value":"1602.06557v1","created_at":"2026-05-18T01:20:13.707866+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06557","created_at":"2026-05-18T01:20:13.707866+00:00"},{"alias_kind":"pith_short_12","alias_value":"O3Z5D5GHTBL2","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_16","alias_value":"O3Z5D5GHTBL25UZB","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_8","alias_value":"O3Z5D5GH","created_at":"2026-05-18T12:30:36.002864+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/O3Z5D5GHTBL25UZBJ6WPEWZPDP","json":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP.json","graph_json":"https://pith.science/api/pith-number/O3Z5D5GHTBL25UZBJ6WPEWZPDP/graph.json","events_json":"https://pith.science/api/pith-number/O3Z5D5GHTBL25UZBJ6WPEWZPDP/events.json","paper":"https://pith.science/paper/O3Z5D5GH"},"agent_actions":{"view_html":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP","download_json":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP.json","view_paper":"https://pith.science/paper/O3Z5D5GH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1602.06557&json=true","fetch_graph":"https://pith.science/api/pith-number/O3Z5D5GHTBL25UZBJ6WPEWZPDP/graph.json","fetch_events":"https://pith.science/api/pith-number/O3Z5D5GHTBL25UZBJ6WPEWZPDP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP/action/storage_attestation","attest_author":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP/action/author_attestation","sign_citation":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP/action/citation_signature","submit_replication":"https://pith.science/pith/O3Z5D5GHTBL25UZBJ6WPEWZPDP/action/replication_record"}},"created_at":"2026-05-18T01:20:13.707866+00:00","updated_at":"2026-05-18T01:20:13.707866+00:00"}