{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:ASUCF7CUTRB5UOIUY6WT2YNEIX","short_pith_number":"pith:ASUCF7CU","schema_version":"1.0","canonical_sha256":"04a822fc549c43da3914c7ad3d61a445c73d5fad8c693fb4f42c5fb68cb7a543","source":{"kind":"arxiv","id":"2602.07117","version":2},"attestation_state":"computed","paper":{"title":"The Cosmological Grassmannian","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Daniel Baumann, Facundo Rost, Guilherme L. Pimentel, Mang Hei Gordon Lee, Mattia Arundine","submitted_at":"2026-02-06T19:00:03Z","abstract_excerpt":"We introduce the orthogonal Grassmannian as a novel kinematic space for describing correlators of massless spinning fields in de Sitter space. By automatically encoding the constraints of conformal symmetry and current conservation, the formalism drastically simplifies these correlators. We show that three-point functions are fixed by little group covariance and take the same form as the corresponding Schwinger-parameterized correlators in twistor space. The power of the Grassmannian approach is especially evident for four-point functions, which require dynamical input beyond kinematics. We de"},"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":"2602.07117","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2026-02-06T19:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"54dcc505c9975b15de37ab70d2d251ec68da1b6559e27e12fc2cf5aa243df830","abstract_canon_sha256":"38bb971ffb72b19fb78205a491069334c4cf8f0f7d282461171552f129f3209d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-26T01:15:49.156176Z","signature_b64":"MwuSWJUWMpjGAw56Mp6ztvRLVlBJXSIGWclXjY/G0DS60nEYpdtIhU59od0TU4Cfgp1PLSBzCPBe+sEiQk9zCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04a822fc549c43da3914c7ad3d61a445c73d5fad8c693fb4f42c5fb68cb7a543","last_reissued_at":"2026-06-26T01:15:49.155584Z","signature_status":"signed_v1","first_computed_at":"2026-06-26T01:15:49.155584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Cosmological Grassmannian","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Daniel Baumann, Facundo Rost, Guilherme L. Pimentel, Mang Hei Gordon Lee, Mattia Arundine","submitted_at":"2026-02-06T19:00:03Z","abstract_excerpt":"We introduce the orthogonal Grassmannian as a novel kinematic space for describing correlators of massless spinning fields in de Sitter space. By automatically encoding the constraints of conformal symmetry and current conservation, the formalism drastically simplifies these correlators. We show that three-point functions are fixed by little group covariance and take the same form as the corresponding Schwinger-parameterized correlators in twistor space. The power of the Grassmannian approach is especially evident for four-point functions, which require dynamical input beyond kinematics. We de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.07117","kind":"arxiv","version":2},"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/2602.07117/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":"2602.07117","created_at":"2026-06-26T01:15:49.155657+00:00"},{"alias_kind":"arxiv_version","alias_value":"2602.07117v2","created_at":"2026-06-26T01:15:49.155657+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.07117","created_at":"2026-06-26T01:15:49.155657+00:00"},{"alias_kind":"pith_short_12","alias_value":"ASUCF7CUTRB5","created_at":"2026-06-26T01:15:49.155657+00:00"},{"alias_kind":"pith_short_16","alias_value":"ASUCF7CUTRB5UOIU","created_at":"2026-06-26T01:15:49.155657+00:00"},{"alias_kind":"pith_short_8","alias_value":"ASUCF7CU","created_at":"2026-06-26T01:15:49.155657+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":7,"internal_anchor_count":7,"sample":[{"citing_arxiv_id":"2605.30276","citing_title":"Self-dual holography: four-point AdS/CFT correlators in higher-spin gravity","ref_index":84,"is_internal_anchor":true},{"citing_arxiv_id":"2605.21581","citing_title":"Cosmological Collider in the Grassmannian","ref_index":7,"is_internal_anchor":true},{"citing_arxiv_id":"2604.24844","citing_title":"Three-Gluon Scattering Amplitude in de Sitter Spacetime","ref_index":15,"is_internal_anchor":true},{"citing_arxiv_id":"2604.08512","citing_title":"Beyond Discontinuities: Cosmological WFCs from the Supersymmetric Orthogonal Grassmannian","ref_index":13,"is_internal_anchor":true},{"citing_arxiv_id":"2604.07503","citing_title":"Super-Grassmannians for $\\mathcal{N}=2$ to $4$ SCFT$_3$: From AdS$_4$ Correlators to $\\mathcal{N}=4$ SYM scattering Amplitudes","ref_index":46,"is_internal_anchor":true},{"citing_arxiv_id":"2604.07446","citing_title":"The $\\mathcal{N}=1$ Super-Grassmannian for CFT$_3$ and a Foray on AdS and Cosmological Correlators","ref_index":47,"is_internal_anchor":true},{"citing_arxiv_id":"2605.06811","citing_title":"The Conformal Grassmannian: A Symplectic Bi-Grassmannian for $CFT_ 4$ Correlators","ref_index":33,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX","json":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX.json","graph_json":"https://pith.science/api/pith-number/ASUCF7CUTRB5UOIUY6WT2YNEIX/graph.json","events_json":"https://pith.science/api/pith-number/ASUCF7CUTRB5UOIUY6WT2YNEIX/events.json","paper":"https://pith.science/paper/ASUCF7CU"},"agent_actions":{"view_html":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX","download_json":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX.json","view_paper":"https://pith.science/paper/ASUCF7CU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2602.07117&json=true","fetch_graph":"https://pith.science/api/pith-number/ASUCF7CUTRB5UOIUY6WT2YNEIX/graph.json","fetch_events":"https://pith.science/api/pith-number/ASUCF7CUTRB5UOIUY6WT2YNEIX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX/action/storage_attestation","attest_author":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX/action/author_attestation","sign_citation":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX/action/citation_signature","submit_replication":"https://pith.science/pith/ASUCF7CUTRB5UOIUY6WT2YNEIX/action/replication_record"}},"created_at":"2026-06-26T01:15:49.155657+00:00","updated_at":"2026-06-26T01:15:49.155657+00:00"}