{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:EYPJ4QLJMUFUEWKVNUNO3VRGPN","short_pith_number":"pith:EYPJ4QLJ","schema_version":"1.0","canonical_sha256":"261e9e4169650b4259556d1aedd6267b5e5e2d99538e4eca2c618418a7e0101b","source":{"kind":"arxiv","id":"1101.4049","version":1},"attestation_state":"computed","paper":{"title":"Cosmological constant in spinfoam cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Carlo Rovelli, Eugenio Bianchi, Francesca Vidotto, Thomas Krajewski","submitted_at":"2011-01-20T23:27:19Z","abstract_excerpt":"We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2,C)q extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution."},"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":"1101.4049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-01-20T23:27:19Z","cross_cats_sorted":[],"title_canon_sha256":"203fa39b8d46688fd1e6ac2e4d99800702a9842fe57e40d77e548ebb53866641","abstract_canon_sha256":"1844a674befa8118f8960b2d8bc72018610a76b2b908d07daf0cf219f174cd02"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:22:11.067881Z","signature_b64":"kAEshDwrQeLfycuq9HOBS5aVSWdLXU+27Ri/9XcU0KcKbrSnNoAW5PI45LOf3ZZv1LmkSTlpoqi1VgcCl2RACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"261e9e4169650b4259556d1aedd6267b5e5e2d99538e4eca2c618418a7e0101b","last_reissued_at":"2026-05-18T04:22:11.067385Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:22:11.067385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Cosmological constant in spinfoam cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Carlo Rovelli, Eugenio Bianchi, Francesca Vidotto, Thomas Krajewski","submitted_at":"2011-01-20T23:27:19Z","abstract_excerpt":"We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2,C)q extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4049","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":"1101.4049","created_at":"2026-05-18T04:22:11.067459+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.4049v1","created_at":"2026-05-18T04:22:11.067459+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4049","created_at":"2026-05-18T04:22:11.067459+00:00"},{"alias_kind":"pith_short_12","alias_value":"EYPJ4QLJMUFU","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_16","alias_value":"EYPJ4QLJMUFUEWKV","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_8","alias_value":"EYPJ4QLJ","created_at":"2026-05-18T12:26:28.662955+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.24945","citing_title":"Toller matrices and the Feynman $i\\varepsilon$ in spinfoams","ref_index":68,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN","json":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN.json","graph_json":"https://pith.science/api/pith-number/EYPJ4QLJMUFUEWKVNUNO3VRGPN/graph.json","events_json":"https://pith.science/api/pith-number/EYPJ4QLJMUFUEWKVNUNO3VRGPN/events.json","paper":"https://pith.science/paper/EYPJ4QLJ"},"agent_actions":{"view_html":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN","download_json":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN.json","view_paper":"https://pith.science/paper/EYPJ4QLJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.4049&json=true","fetch_graph":"https://pith.science/api/pith-number/EYPJ4QLJMUFUEWKVNUNO3VRGPN/graph.json","fetch_events":"https://pith.science/api/pith-number/EYPJ4QLJMUFUEWKVNUNO3VRGPN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN/action/storage_attestation","attest_author":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN/action/author_attestation","sign_citation":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN/action/citation_signature","submit_replication":"https://pith.science/pith/EYPJ4QLJMUFUEWKVNUNO3VRGPN/action/replication_record"}},"created_at":"2026-05-18T04:22:11.067459+00:00","updated_at":"2026-05-18T04:22:11.067459+00:00"}