{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:RGJXDO4SDVEPATJBNTANJCFILT","short_pith_number":"pith:RGJXDO4S","canonical_record":{"source":{"id":"2602.00524","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-01-31T05:36:31Z","cross_cats_sorted":[],"title_canon_sha256":"e9e26e88acc14fd8e093512385bdb94cf66bffcd972687a37d218922cda5e04f","abstract_canon_sha256":"0744f75a152993d88eec79c851835188d764243dce916b4bcc01972440894b0e"},"schema_version":"1.0"},"canonical_sha256":"899371bb921d48f04d216cc0d488a85ce1c71517e9007e85667c3e641a567abb","source":{"kind":"arxiv","id":"2602.00524","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.00524","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"arxiv_version","alias_value":"2602.00524v2","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.00524","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_12","alias_value":"RGJXDO4SDVEP","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_16","alias_value":"RGJXDO4SDVEPATJB","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_8","alias_value":"RGJXDO4S","created_at":"2026-06-10T01:08:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:RGJXDO4SDVEPATJBNTANJCFILT","target":"record","payload":{"canonical_record":{"source":{"id":"2602.00524","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-01-31T05:36:31Z","cross_cats_sorted":[],"title_canon_sha256":"e9e26e88acc14fd8e093512385bdb94cf66bffcd972687a37d218922cda5e04f","abstract_canon_sha256":"0744f75a152993d88eec79c851835188d764243dce916b4bcc01972440894b0e"},"schema_version":"1.0"},"canonical_sha256":"899371bb921d48f04d216cc0d488a85ce1c71517e9007e85667c3e641a567abb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:08:32.969189Z","signature_b64":"vm8wbPAhn+/8MHoKJgpQlCUKGMZvDaGtl0OsY1YmeTNRZXNsnCCxj8U0Yb1llw706r57WVbSzL+4sMUPlQLxDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"899371bb921d48f04d216cc0d488a85ce1c71517e9007e85667c3e641a567abb","last_reissued_at":"2026-06-10T01:08:32.968292Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:08:32.968292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.00524","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":"2026-06-10T01:08:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/R4zS6xaRZUgP2AJofOLd/wZJvM8KOv4votL80X7Tf1eIg8YYiwmL5Us/Hl8hUU8LVMkKk1gEeG/Yj2X2AaAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T07:16:17.839210Z"},"content_sha256":"56461b64a03bc802601ac4b5f89426c4ccab55c062540d2cccd9d17235950083","schema_version":"1.0","event_id":"sha256:56461b64a03bc802601ac4b5f89426c4ccab55c062540d2cccd9d17235950083"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:RGJXDO4SDVEPATJBNTANJCFILT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Null Raychaudhuri Equation and the Impossibility of Traversable Wormholes in Unimodular Gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Erick Past\\'en, Marco Bosquez, Norman Cruz","submitted_at":"2026-01-31T05:36:31Z","abstract_excerpt":"We formulate the traversability of wormhole throats as a local and covariant null defocusing condition derived from the Raychaudhuri equation. Since unimodular gravity preserves the local geometric structure of spacetime, the null focusing properties of geodesic congruences are unchanged with respect to general relativity. We show that any genuinely traversable wormhole in unimodular gravity necessarily violates the null energy condition, establishing a local no--go theorem for wormholes supported by ordinary matter in this framework."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.00524","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/2602.00524/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":"2026-06-10T01:08:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J5zo1JKf7AsCxHvzjYLjRGxwZ0yxB8PWa+Wn4xvHq4AJUzJOfLxw+kU333xJCa5Ty9pqfgNZjA0pJ7ZgWsP+Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T07:16:17.839884Z"},"content_sha256":"ab15fc1c7aa1416669ebff2ac32b64b06b76023ee6b9d521070e55181fcda235","schema_version":"1.0","event_id":"sha256:ab15fc1c7aa1416669ebff2ac32b64b06b76023ee6b9d521070e55181fcda235"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RGJXDO4SDVEPATJBNTANJCFILT/bundle.json","state_url":"https://pith.science/pith/RGJXDO4SDVEPATJBNTANJCFILT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RGJXDO4SDVEPATJBNTANJCFILT/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":"2026-08-14T07:16:17Z","links":{"resolver":"https://pith.science/pith/RGJXDO4SDVEPATJBNTANJCFILT","bundle":"https://pith.science/pith/RGJXDO4SDVEPATJBNTANJCFILT/bundle.json","state":"https://pith.science/pith/RGJXDO4SDVEPATJBNTANJCFILT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RGJXDO4SDVEPATJBNTANJCFILT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:RGJXDO4SDVEPATJBNTANJCFILT","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":"0744f75a152993d88eec79c851835188d764243dce916b4bcc01972440894b0e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-01-31T05:36:31Z","title_canon_sha256":"e9e26e88acc14fd8e093512385bdb94cf66bffcd972687a37d218922cda5e04f"},"schema_version":"1.0","source":{"id":"2602.00524","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.00524","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"arxiv_version","alias_value":"2602.00524v2","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.00524","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_12","alias_value":"RGJXDO4SDVEP","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_16","alias_value":"RGJXDO4SDVEPATJB","created_at":"2026-06-10T01:08:32Z"},{"alias_kind":"pith_short_8","alias_value":"RGJXDO4S","created_at":"2026-06-10T01:08:32Z"}],"graph_snapshots":[{"event_id":"sha256:ab15fc1c7aa1416669ebff2ac32b64b06b76023ee6b9d521070e55181fcda235","target":"graph","created_at":"2026-06-10T01:08:32Z","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/2602.00524/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We formulate the traversability of wormhole throats as a local and covariant null defocusing condition derived from the Raychaudhuri equation. Since unimodular gravity preserves the local geometric structure of spacetime, the null focusing properties of geodesic congruences are unchanged with respect to general relativity. We show that any genuinely traversable wormhole in unimodular gravity necessarily violates the null energy condition, establishing a local no--go theorem for wormholes supported by ordinary matter in this framework.","authors_text":"Erick Past\\'en, Marco Bosquez, Norman Cruz","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-01-31T05:36:31Z","title":"Null Raychaudhuri Equation and the Impossibility of Traversable Wormholes in Unimodular Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.00524","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":"sha256:56461b64a03bc802601ac4b5f89426c4ccab55c062540d2cccd9d17235950083","target":"record","created_at":"2026-06-10T01:08:32Z","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":"0744f75a152993d88eec79c851835188d764243dce916b4bcc01972440894b0e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-01-31T05:36:31Z","title_canon_sha256":"e9e26e88acc14fd8e093512385bdb94cf66bffcd972687a37d218922cda5e04f"},"schema_version":"1.0","source":{"id":"2602.00524","kind":"arxiv","version":2}},"canonical_sha256":"899371bb921d48f04d216cc0d488a85ce1c71517e9007e85667c3e641a567abb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"899371bb921d48f04d216cc0d488a85ce1c71517e9007e85667c3e641a567abb","first_computed_at":"2026-06-10T01:08:32.968292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:08:32.968292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vm8wbPAhn+/8MHoKJgpQlCUKGMZvDaGtl0OsY1YmeTNRZXNsnCCxj8U0Yb1llw706r57WVbSzL+4sMUPlQLxDw==","signature_status":"signed_v1","signed_at":"2026-06-10T01:08:32.969189Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.00524","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56461b64a03bc802601ac4b5f89426c4ccab55c062540d2cccd9d17235950083","sha256:ab15fc1c7aa1416669ebff2ac32b64b06b76023ee6b9d521070e55181fcda235"],"state_sha256":"443caee540fbddf5db3d1ef4dafd6f7fdd6d93c4253533be9953b80c65a5a368"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TB7Er04A9yIVwlIw8y3wZEhrcFShx00Ftfr8FYtWlPSjvCpOd93TdckMr0+JmKLF69GbH16QtkiEFxIUVu5cBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T07:16:17.844192Z","bundle_sha256":"c118134e9ebe92142d5da680f3fceae871645bef3ccb0fc5ed05516a38e63744"}}