{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CQJIHILYY7HUHZW4A5VJ7T2OOI","short_pith_number":"pith:CQJIHILY","canonical_record":{"source":{"id":"1310.5038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-18T14:38:39Z","cross_cats_sorted":[],"title_canon_sha256":"6ad51bd465a668e577c417d83b3755adde401854c37417469b8c1f786c7fcbd7","abstract_canon_sha256":"39467265261be5c8b15dad2c169b770cd96fd80fbc36860031dd90378b69335d"},"schema_version":"1.0"},"canonical_sha256":"141283a178c7cf43e6dc076a9fcf4e722d8cb8b525bdaa10c86ef1f540f81261","source":{"kind":"arxiv","id":"1310.5038","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.5038","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"arxiv_version","alias_value":"1310.5038v1","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.5038","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"pith_short_12","alias_value":"CQJIHILYY7HU","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CQJIHILYY7HUHZW4","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CQJIHILY","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CQJIHILYY7HUHZW4A5VJ7T2OOI","target":"record","payload":{"canonical_record":{"source":{"id":"1310.5038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-18T14:38:39Z","cross_cats_sorted":[],"title_canon_sha256":"6ad51bd465a668e577c417d83b3755adde401854c37417469b8c1f786c7fcbd7","abstract_canon_sha256":"39467265261be5c8b15dad2c169b770cd96fd80fbc36860031dd90378b69335d"},"schema_version":"1.0"},"canonical_sha256":"141283a178c7cf43e6dc076a9fcf4e722d8cb8b525bdaa10c86ef1f540f81261","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:21.602740Z","signature_b64":"GN9upU2JTrTw/fVP+2TsxKg6zd9FUJr/cX+/2K9qprVciY7NM89U8XhKlI72bMHkci7VfRpp2RCgVp0tELwNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"141283a178c7cf43e6dc076a9fcf4e722d8cb8b525bdaa10c86ef1f540f81261","last_reissued_at":"2026-05-18T02:31:21.602063Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:21.602063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.5038","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:31:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smbpmlWb3j8pJWPJ/Mais/Ynk9FBFG3p3jiXSaSX59mtzds7Y6dvHZkMFitCDSOqfWz8mO/kJ9aHxVP68WZeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:23:36.337645Z"},"content_sha256":"6441a9b4292e26b390352132bdbe554e9e977a6d138ef91b5f0ab85c8ffee690","schema_version":"1.0","event_id":"sha256:6441a9b4292e26b390352132bdbe554e9e977a6d138ef91b5f0ab85c8ffee690"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CQJIHILYY7HUHZW4A5VJ7T2OOI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bounded Scalar Perturbations in Bouncing Brane World Cosmologies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Francesco Pace, Ivano Dami\\~ao Soares, Rodrigo Maier","submitted_at":"2013-10-18T14:38:39Z","abstract_excerpt":"We examine the dynamics of scalar perturbations in closed Friedmann-Lema\\^itre-Robertson- Walker (FLRW) universes in the framework of Brane World theory with a timelike extra dimension. In this scenario, the unperturbed Friedmann equations contain additional terms arising from the bulk-brane interaction that implement non-singular bounces in the models with a cosmological constant and non-interacting perfect fluids. The structure of the phase-space of the models allows for two basic configurations, namely, one bounce solutions or eternal universes. Assuming that the matter content of the model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.5038","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:31:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BItSOxSMbnzJutTpdcAVDECe9jeHBEcQQLFN3YB2rsjYlj9PmkxRzoItTNQrXdGKX7Nh9zzOdokkeivZXXUZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:23:36.338297Z"},"content_sha256":"b281442e0efb18fab9bb3a8e5f3cca52e34a7d9be01267e1182513e6d7ea9939","schema_version":"1.0","event_id":"sha256:b281442e0efb18fab9bb3a8e5f3cca52e34a7d9be01267e1182513e6d7ea9939"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/bundle.json","state_url":"https://pith.science/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/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":"2026-05-27T13:23:36Z","links":{"resolver":"https://pith.science/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI","bundle":"https://pith.science/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/bundle.json","state":"https://pith.science/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CQJIHILYY7HUHZW4A5VJ7T2OOI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CQJIHILYY7HUHZW4A5VJ7T2OOI","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":"39467265261be5c8b15dad2c169b770cd96fd80fbc36860031dd90378b69335d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-18T14:38:39Z","title_canon_sha256":"6ad51bd465a668e577c417d83b3755adde401854c37417469b8c1f786c7fcbd7"},"schema_version":"1.0","source":{"id":"1310.5038","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.5038","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"arxiv_version","alias_value":"1310.5038v1","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.5038","created_at":"2026-05-18T02:31:21Z"},{"alias_kind":"pith_short_12","alias_value":"CQJIHILYY7HU","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CQJIHILYY7HUHZW4","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CQJIHILY","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:b281442e0efb18fab9bb3a8e5f3cca52e34a7d9be01267e1182513e6d7ea9939","target":"graph","created_at":"2026-05-18T02:31:21Z","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":"We examine the dynamics of scalar perturbations in closed Friedmann-Lema\\^itre-Robertson- Walker (FLRW) universes in the framework of Brane World theory with a timelike extra dimension. In this scenario, the unperturbed Friedmann equations contain additional terms arising from the bulk-brane interaction that implement non-singular bounces in the models with a cosmological constant and non-interacting perfect fluids. The structure of the phase-space of the models allows for two basic configurations, namely, one bounce solutions or eternal universes. Assuming that the matter content of the model","authors_text":"Francesco Pace, Ivano Dami\\~ao Soares, Rodrigo Maier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-18T14:38:39Z","title":"Bounded Scalar Perturbations in Bouncing Brane World Cosmologies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.5038","kind":"arxiv","version":1},"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":"sha256:6441a9b4292e26b390352132bdbe554e9e977a6d138ef91b5f0ab85c8ffee690","target":"record","created_at":"2026-05-18T02:31:21Z","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":"39467265261be5c8b15dad2c169b770cd96fd80fbc36860031dd90378b69335d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-18T14:38:39Z","title_canon_sha256":"6ad51bd465a668e577c417d83b3755adde401854c37417469b8c1f786c7fcbd7"},"schema_version":"1.0","source":{"id":"1310.5038","kind":"arxiv","version":1}},"canonical_sha256":"141283a178c7cf43e6dc076a9fcf4e722d8cb8b525bdaa10c86ef1f540f81261","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"141283a178c7cf43e6dc076a9fcf4e722d8cb8b525bdaa10c86ef1f540f81261","first_computed_at":"2026-05-18T02:31:21.602063Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:21.602063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GN9upU2JTrTw/fVP+2TsxKg6zd9FUJr/cX+/2K9qprVciY7NM89U8XhKlI72bMHkci7VfRpp2RCgVp0tELwNBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:21.602740Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.5038","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6441a9b4292e26b390352132bdbe554e9e977a6d138ef91b5f0ab85c8ffee690","sha256:b281442e0efb18fab9bb3a8e5f3cca52e34a7d9be01267e1182513e6d7ea9939"],"state_sha256":"ea0f6e8eb272c14f9b380f6392231a8803758748da929c6da5f71e211ad2d39c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NJD3T3BVuxDx/Vx5Ca7sGabaNVgxELcRE879Fnc3hx73r20bs6PPS/RlyXjKPxeO6uVmn3yMjA5VX7TY0vwkBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:23:36.341835Z","bundle_sha256":"b317f770bde5e8b5d2aa7e627b4bccaad57b2361722dd81d1004027ca4f45929"}}