{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:JBUNAX6CIPNYI2NEGF3THZE63U","short_pith_number":"pith:JBUNAX6C","canonical_record":{"source":{"id":"2403.17278","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-03-25T23:48:19Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"706d25ffb80f2a3996eb9d0051a1ba57cbc26b825989d40572242a097f873267","abstract_canon_sha256":"1359cc17f7ce6655785640e41735606fde86cd0c397aa2cdd0aec71a61c91034"},"schema_version":"1.0"},"canonical_sha256":"4868d05fc243db8469a4317733e49edd2d936c6baa5bb41d5c0e44f06a900028","source":{"kind":"arxiv","id":"2403.17278","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.17278","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"arxiv_version","alias_value":"2403.17278v2","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.17278","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_12","alias_value":"JBUNAX6CIPNY","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_16","alias_value":"JBUNAX6CIPNYI2NE","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_8","alias_value":"JBUNAX6C","created_at":"2026-07-05T09:36:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:JBUNAX6CIPNYI2NEGF3THZE63U","target":"record","payload":{"canonical_record":{"source":{"id":"2403.17278","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-03-25T23:48:19Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"706d25ffb80f2a3996eb9d0051a1ba57cbc26b825989d40572242a097f873267","abstract_canon_sha256":"1359cc17f7ce6655785640e41735606fde86cd0c397aa2cdd0aec71a61c91034"},"schema_version":"1.0"},"canonical_sha256":"4868d05fc243db8469a4317733e49edd2d936c6baa5bb41d5c0e44f06a900028","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:36:10.658331Z","signature_b64":"orTM9EsluTqnY7kFpvX8fcgJGrM7p3amKmbMyVrL2/rYft6CFn8Ah/NezWfqm9LgAFdEOPyMnp4atcyTCnB6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4868d05fc243db8469a4317733e49edd2d936c6baa5bb41d5c0e44f06a900028","last_reissued_at":"2026-07-05T09:36:10.657759Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:36:10.657759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.17278","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:36:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dfuBF6vsoxE6ih4oWTCtmnzSx4+zLZNKWfevLqJz5xvvcowhlocDjOG2Y3k0+C9bIbMNdmvJTBITCgzaJYykBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:38:15.974659Z"},"content_sha256":"d133624a0975a4e1204051e53f32df6e58036a359e6d3c6d4940aef4215d9b2f","schema_version":"1.0","event_id":"sha256:d133624a0975a4e1204051e53f32df6e58036a359e6d3c6d4940aef4215d9b2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:JBUNAX6CIPNYI2NEGF3THZE63U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A unimodular Kaluza-Klein theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"J\\'ulio C. Fabris, Richard Kerner","submitted_at":"2024-03-25T23:48:19Z","abstract_excerpt":"Unimodular gravity became an object of increasing interest in the late $80$-ties and was recently used in primordial Universe modeling with cosmological constant, in the context of the Brans-Dicke gravity including scalar field. In the present article we investigate the possibility of imposing the unimodular condition within the $5$-dimensional Kaluza-Klein theory including the scalar field. The variational principle is formulated in $5$ dimensions first, and dimensional reduction is applied to the resulting set of equations. A cosmological model based on these equations is then presented and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.17278","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/2403.17278/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:36:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uZOu04MyyF1aDEQTyhV5qiD01fSKjnP+R5UyGujx7ubUWZI2LybxANjA9dbx29McIvaH1UfrxVMTY+LNm9FiDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:38:15.976810Z"},"content_sha256":"a603f27a32a6047cfbfbb96c696e05854d9bda9362f7eb0104ce20731b39037f","schema_version":"1.0","event_id":"sha256:a603f27a32a6047cfbfbb96c696e05854d9bda9362f7eb0104ce20731b39037f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JBUNAX6CIPNYI2NEGF3THZE63U/bundle.json","state_url":"https://pith.science/pith/JBUNAX6CIPNYI2NEGF3THZE63U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JBUNAX6CIPNYI2NEGF3THZE63U/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-05T07:38:15Z","links":{"resolver":"https://pith.science/pith/JBUNAX6CIPNYI2NEGF3THZE63U","bundle":"https://pith.science/pith/JBUNAX6CIPNYI2NEGF3THZE63U/bundle.json","state":"https://pith.science/pith/JBUNAX6CIPNYI2NEGF3THZE63U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JBUNAX6CIPNYI2NEGF3THZE63U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:JBUNAX6CIPNYI2NEGF3THZE63U","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1359cc17f7ce6655785640e41735606fde86cd0c397aa2cdd0aec71a61c91034","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-03-25T23:48:19Z","title_canon_sha256":"706d25ffb80f2a3996eb9d0051a1ba57cbc26b825989d40572242a097f873267"},"schema_version":"1.0","source":{"id":"2403.17278","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.17278","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"arxiv_version","alias_value":"2403.17278v2","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.17278","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_12","alias_value":"JBUNAX6CIPNY","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_16","alias_value":"JBUNAX6CIPNYI2NE","created_at":"2026-07-05T09:36:10Z"},{"alias_kind":"pith_short_8","alias_value":"JBUNAX6C","created_at":"2026-07-05T09:36:10Z"}],"graph_snapshots":[{"event_id":"sha256:a603f27a32a6047cfbfbb96c696e05854d9bda9362f7eb0104ce20731b39037f","target":"graph","created_at":"2026-07-05T09:36:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.17278/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Unimodular gravity became an object of increasing interest in the late $80$-ties and was recently used in primordial Universe modeling with cosmological constant, in the context of the Brans-Dicke gravity including scalar field. In the present article we investigate the possibility of imposing the unimodular condition within the $5$-dimensional Kaluza-Klein theory including the scalar field. The variational principle is formulated in $5$ dimensions first, and dimensional reduction is applied to the resulting set of equations. A cosmological model based on these equations is then presented and ","authors_text":"J\\'ulio C. Fabris, Richard Kerner","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-03-25T23:48:19Z","title":"A unimodular Kaluza-Klein theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.17278","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d133624a0975a4e1204051e53f32df6e58036a359e6d3c6d4940aef4215d9b2f","target":"record","created_at":"2026-07-05T09:36:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1359cc17f7ce6655785640e41735606fde86cd0c397aa2cdd0aec71a61c91034","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-03-25T23:48:19Z","title_canon_sha256":"706d25ffb80f2a3996eb9d0051a1ba57cbc26b825989d40572242a097f873267"},"schema_version":"1.0","source":{"id":"2403.17278","kind":"arxiv","version":2}},"canonical_sha256":"4868d05fc243db8469a4317733e49edd2d936c6baa5bb41d5c0e44f06a900028","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4868d05fc243db8469a4317733e49edd2d936c6baa5bb41d5c0e44f06a900028","first_computed_at":"2026-07-05T09:36:10.657759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:36:10.657759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"orTM9EsluTqnY7kFpvX8fcgJGrM7p3amKmbMyVrL2/rYft6CFn8Ah/NezWfqm9LgAFdEOPyMnp4atcyTCnB6Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:36:10.658331Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.17278","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d133624a0975a4e1204051e53f32df6e58036a359e6d3c6d4940aef4215d9b2f","sha256:a603f27a32a6047cfbfbb96c696e05854d9bda9362f7eb0104ce20731b39037f"],"state_sha256":"867f7ad2268204eda1cd6da915c5c13616489aa7a4ab3ccade6ea9c591484f90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jro4DD+sOnMMfPgq7w1L1eckdflYi2o7tipjK2DiDHatbsLXioX0d3pbz2km9vUIBiMJM+fBLQxx2WGs57ZLBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:38:15.982836Z","bundle_sha256":"f5f598a89067d21a368982f3b366b5b4b85d3e351bce954958d896e0facc0456"}}