{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:4KEIJ5CCK2HPKNCM4RE7ALSI3N","short_pith_number":"pith:4KEIJ5CC","canonical_record":{"source":{"id":"1411.3845","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-11-14T09:51:38Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ccc033a312bf6dd93bd19c9f0d029d876763cc6bcb8bf8ec3f91c967ba31a6e3","abstract_canon_sha256":"1a7044fec417afca6e1b04f5b05365ddb075306c28a0adf0fc047289cc3253f8"},"schema_version":"1.0"},"canonical_sha256":"e28884f442568ef5344ce449f02e48db506e05f78b15c13deaedead94f825b8a","source":{"kind":"arxiv","id":"1411.3845","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3845","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3845v2","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3845","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"pith_short_12","alias_value":"4KEIJ5CCK2HP","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4KEIJ5CCK2HPKNCM","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4KEIJ5CC","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:4KEIJ5CCK2HPKNCM4RE7ALSI3N","target":"record","payload":{"canonical_record":{"source":{"id":"1411.3845","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-11-14T09:51:38Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ccc033a312bf6dd93bd19c9f0d029d876763cc6bcb8bf8ec3f91c967ba31a6e3","abstract_canon_sha256":"1a7044fec417afca6e1b04f5b05365ddb075306c28a0adf0fc047289cc3253f8"},"schema_version":"1.0"},"canonical_sha256":"e28884f442568ef5344ce449f02e48db506e05f78b15c13deaedead94f825b8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:41.773466Z","signature_b64":"pax7SHy/HkjpyXMgDymO2dYN1+BbpQdG+jcQTZ5czKLObXGVBeoDdAjYiv68YAz2E/hxn6RtLWQx4VZxLGtmAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e28884f442568ef5344ce449f02e48db506e05f78b15c13deaedead94f825b8a","last_reissued_at":"2026-05-18T00:54:41.772985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:41.772985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.3845","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":"2026-05-18T00:54:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nLTs/rYjhtR0q7Q0ygMDyfn8C92JD8//szVU9Gfu1mavRMLlNu1k+vCE49/PKMM3hvT4Y8gNenQgAVglrV5OBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T21:27:46.558543Z"},"content_sha256":"9dbbb380de0ececed87eb26c0e511396bc1c3eefb03bbe53ece95f8b5889abbe","schema_version":"1.0","event_id":"sha256:9dbbb380de0ececed87eb26c0e511396bc1c3eefb03bbe53ece95f8b5889abbe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:4KEIJ5CCK2HPKNCM4RE7ALSI3N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Brane induced cosmological acceleration and crossing of w_{eff}=-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Nobuyuki Motoyui","submitted_at":"2014-11-14T09:51:38Z","abstract_excerpt":"The cosmological observation indicates that the effective equation of state parameter $w_{eff}$ varies with $z$: It changes from $w_{eff}>-1$ to $w_{eff}<-1$ at $z\\sim 0.2$. We investigate under which condition it exhibits such behaviors based on the five-dimensional braneworld scenario. It is possible in the model with or without an energy exchange between the four dimensional universe and the fifth dimension. However the curves of $w_{eff}$ are quite different between the two cases."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3845","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":""},"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":"2026-05-18T00:54:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vcuT/dIXS1uoHDONfMyjnxKJltVX+wu8ZovAD/bcKD7KvT60GIYkj7dJi2hJsaVZw0qzgctO7w+fmR88jy4iDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T21:27:46.558890Z"},"content_sha256":"f7499820c5cdd6ec4dfdee2a7d13fa1c10449316b550e9537c41253ab2d04746","schema_version":"1.0","event_id":"sha256:f7499820c5cdd6ec4dfdee2a7d13fa1c10449316b550e9537c41253ab2d04746"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/bundle.json","state_url":"https://pith.science/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/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":"2026-07-01T21:27:46Z","links":{"resolver":"https://pith.science/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N","bundle":"https://pith.science/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/bundle.json","state":"https://pith.science/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4KEIJ5CCK2HPKNCM4RE7ALSI3N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4KEIJ5CCK2HPKNCM4RE7ALSI3N","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":"1a7044fec417afca6e1b04f5b05365ddb075306c28a0adf0fc047289cc3253f8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-11-14T09:51:38Z","title_canon_sha256":"ccc033a312bf6dd93bd19c9f0d029d876763cc6bcb8bf8ec3f91c967ba31a6e3"},"schema_version":"1.0","source":{"id":"1411.3845","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3845","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3845v2","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3845","created_at":"2026-05-18T00:54:41Z"},{"alias_kind":"pith_short_12","alias_value":"4KEIJ5CCK2HP","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4KEIJ5CCK2HPKNCM","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4KEIJ5CC","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:f7499820c5cdd6ec4dfdee2a7d13fa1c10449316b550e9537c41253ab2d04746","target":"graph","created_at":"2026-05-18T00:54:41Z","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"},"paper":{"abstract_excerpt":"The cosmological observation indicates that the effective equation of state parameter $w_{eff}$ varies with $z$: It changes from $w_{eff}>-1$ to $w_{eff}<-1$ at $z\\sim 0.2$. We investigate under which condition it exhibits such behaviors based on the five-dimensional braneworld scenario. It is possible in the model with or without an energy exchange between the four dimensional universe and the fifth dimension. However the curves of $w_{eff}$ are quite different between the two cases.","authors_text":"Nobuyuki Motoyui","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-11-14T09:51:38Z","title":"Brane induced cosmological acceleration and crossing of w_{eff}=-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3845","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":"sha256:9dbbb380de0ececed87eb26c0e511396bc1c3eefb03bbe53ece95f8b5889abbe","target":"record","created_at":"2026-05-18T00:54:41Z","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":"1a7044fec417afca6e1b04f5b05365ddb075306c28a0adf0fc047289cc3253f8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-11-14T09:51:38Z","title_canon_sha256":"ccc033a312bf6dd93bd19c9f0d029d876763cc6bcb8bf8ec3f91c967ba31a6e3"},"schema_version":"1.0","source":{"id":"1411.3845","kind":"arxiv","version":2}},"canonical_sha256":"e28884f442568ef5344ce449f02e48db506e05f78b15c13deaedead94f825b8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e28884f442568ef5344ce449f02e48db506e05f78b15c13deaedead94f825b8a","first_computed_at":"2026-05-18T00:54:41.772985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:41.772985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pax7SHy/HkjpyXMgDymO2dYN1+BbpQdG+jcQTZ5czKLObXGVBeoDdAjYiv68YAz2E/hxn6RtLWQx4VZxLGtmAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:41.773466Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.3845","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9dbbb380de0ececed87eb26c0e511396bc1c3eefb03bbe53ece95f8b5889abbe","sha256:f7499820c5cdd6ec4dfdee2a7d13fa1c10449316b550e9537c41253ab2d04746"],"state_sha256":"4fa8de1e9a9270a640e758a7d6312b86288ca895f03ccc3349cf36f74bed5ff8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nKoovxMfu8GLCkuVtvQ4GlLx2TSSiK2z9bFrogx0EeJbWIdoq+L0upd4WurmLz6zAPkR8Z0CRvUCY/dpukz+AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T21:27:46.560835Z","bundle_sha256":"89c809d5a4338c73e6f3fb159e119bb00d75c250ee95d3334736f14734d6d59b"}}