{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:ZGLZUOQZKYMBEZY4GCSPDONH2B","short_pith_number":"pith:ZGLZUOQZ","canonical_record":{"source":{"id":"gr-qc/0211045","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2002-11-12T17:33:58Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"e50544c3fb3d7ae08f4f03e3cd227b7e0732594c4608c3ac64fa7c7f949525e2","abstract_canon_sha256":"4adb4ce8acafc6dbfd26df6a395ed6d920453f87127bd186ddca9554c83b1651"},"schema_version":"1.0"},"canonical_sha256":"c9979a3a19561812671c30a4f1b9a7d07a14d43196e20a90949b7cd16310fcb7","source":{"kind":"arxiv","id":"gr-qc/0211045","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0211045","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0211045v2","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0211045","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"ZGLZUOQZKYMB","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_16","alias_value":"ZGLZUOQZKYMBEZY4","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_8","alias_value":"ZGLZUOQZ","created_at":"2026-07-04T16:33:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:ZGLZUOQZKYMBEZY4GCSPDONH2B","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/0211045","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2002-11-12T17:33:58Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"e50544c3fb3d7ae08f4f03e3cd227b7e0732594c4608c3ac64fa7c7f949525e2","abstract_canon_sha256":"4adb4ce8acafc6dbfd26df6a395ed6d920453f87127bd186ddca9554c83b1651"},"schema_version":"1.0"},"canonical_sha256":"c9979a3a19561812671c30a4f1b9a7d07a14d43196e20a90949b7cd16310fcb7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:33:48.116833Z","signature_b64":"mHkFn2a/dA9/3jUUENZWceLCjT9ncGXXniaQkGIxGzyVkMq9oSjeKyy5NM6ZM/uuOBnNxH7xIS7dTC1hXVp3CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9979a3a19561812671c30a4f1b9a7d07a14d43196e20a90949b7cd16310fcb7","last_reissued_at":"2026-07-04T16:33:48.116473Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:33:48.116473Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/0211045","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":"2026-07-04T16:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UBWqC6Ngos692Jttx+B8w3feBum1zB+wKQ3ji8JxfQJg3iWAYRfBekL23OxEC3JwXBSMv9OGHcQzIHznC1m/DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:08:33.652246Z"},"content_sha256":"ee11c5a418f9df085daa5c5d49f3eca9df79d6e31e7a246a4c3221d5a5c8e309","schema_version":"1.0","event_id":"sha256:ee11c5a418f9df085daa5c5d49f3eca9df79d6e31e7a246a4c3221d5a5c8e309"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:ZGLZUOQZKYMBEZY4GCSPDONH2B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Fast Travel through spherically symmetric spacetimes","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Belkis Cabrera Palmer, Donald Marolf","submitted_at":"2002-11-12T17:33:58Z","abstract_excerpt":"In a static spacetime, the Killing time can be used to measure the time required for signals or objects to propagate between two of its orbits. By further restricting to spherically symmetric cases, one obtains a natural association between these orbits and timelike lines in Minkowski space. We prove a simple theorem to the effect that in any spacetime satisfying the weak energy condition the above signaling time is, in this sense, no faster than that for a corresponding signal in Minkowski space. The theorem uses a ormalization of Killing time appropriate to an observer at infinity. We then b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0211045","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/gr-qc/0211045/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":"2026-07-04T16:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eTtAA74YscqH6IPKj6IwRZnkBzM5UKrezWeSvblYGSjoKQOZppl2GhW29aPq5FQ9LxMQe3xbigIVu7YfI8G6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:08:33.652807Z"},"content_sha256":"9127c04d0beffae37f6b1e1f7039f238e4b09925f6de943ea537d3924c6076b2","schema_version":"1.0","event_id":"sha256:9127c04d0beffae37f6b1e1f7039f238e4b09925f6de943ea537d3924c6076b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/bundle.json","state_url":"https://pith.science/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/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":"2026-08-05T07:08:33Z","links":{"resolver":"https://pith.science/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B","bundle":"https://pith.science/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/bundle.json","state":"https://pith.science/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZGLZUOQZKYMBEZY4GCSPDONH2B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:ZGLZUOQZKYMBEZY4GCSPDONH2B","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":"4adb4ce8acafc6dbfd26df6a395ed6d920453f87127bd186ddca9554c83b1651","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2002-11-12T17:33:58Z","title_canon_sha256":"e50544c3fb3d7ae08f4f03e3cd227b7e0732594c4608c3ac64fa7c7f949525e2"},"schema_version":"1.0","source":{"id":"gr-qc/0211045","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0211045","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0211045v2","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0211045","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"ZGLZUOQZKYMB","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_16","alias_value":"ZGLZUOQZKYMBEZY4","created_at":"2026-07-04T16:33:48Z"},{"alias_kind":"pith_short_8","alias_value":"ZGLZUOQZ","created_at":"2026-07-04T16:33:48Z"}],"graph_snapshots":[{"event_id":"sha256:9127c04d0beffae37f6b1e1f7039f238e4b09925f6de943ea537d3924c6076b2","target":"graph","created_at":"2026-07-04T16:33:48Z","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/gr-qc/0211045/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a static spacetime, the Killing time can be used to measure the time required for signals or objects to propagate between two of its orbits. By further restricting to spherically symmetric cases, one obtains a natural association between these orbits and timelike lines in Minkowski space. We prove a simple theorem to the effect that in any spacetime satisfying the weak energy condition the above signaling time is, in this sense, no faster than that for a corresponding signal in Minkowski space. The theorem uses a ormalization of Killing time appropriate to an observer at infinity. We then b","authors_text":"Belkis Cabrera Palmer, Donald Marolf","cross_cats":["hep-th"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2002-11-12T17:33:58Z","title":"On Fast Travel through spherically symmetric spacetimes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0211045","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:ee11c5a418f9df085daa5c5d49f3eca9df79d6e31e7a246a4c3221d5a5c8e309","target":"record","created_at":"2026-07-04T16:33:48Z","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":"4adb4ce8acafc6dbfd26df6a395ed6d920453f87127bd186ddca9554c83b1651","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2002-11-12T17:33:58Z","title_canon_sha256":"e50544c3fb3d7ae08f4f03e3cd227b7e0732594c4608c3ac64fa7c7f949525e2"},"schema_version":"1.0","source":{"id":"gr-qc/0211045","kind":"arxiv","version":2}},"canonical_sha256":"c9979a3a19561812671c30a4f1b9a7d07a14d43196e20a90949b7cd16310fcb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9979a3a19561812671c30a4f1b9a7d07a14d43196e20a90949b7cd16310fcb7","first_computed_at":"2026-07-04T16:33:48.116473Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:33:48.116473Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mHkFn2a/dA9/3jUUENZWceLCjT9ncGXXniaQkGIxGzyVkMq9oSjeKyy5NM6ZM/uuOBnNxH7xIS7dTC1hXVp3CA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:33:48.116833Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0211045","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee11c5a418f9df085daa5c5d49f3eca9df79d6e31e7a246a4c3221d5a5c8e309","sha256:9127c04d0beffae37f6b1e1f7039f238e4b09925f6de943ea537d3924c6076b2"],"state_sha256":"3b12cce936c041be18ad3a72c3be330f099fcd53c7557334ed916dce3abdeb9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ev6w3/cZooRidPzGhjn4L5xa82MnoZ6r1K5xdqsednAH8PscyYKxUZH6gBMO4Yo84/8Yh0BmkSXXXxgaFxsyDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:08:33.659921Z","bundle_sha256":"ac8340e5b8ea0b08ff462a3bf927124e9e0d59166ba0e9cfe80bbc3ba6ba76ed"}}