{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:TN4PFPIB3BKGV54IJ3SHZO6PDB","short_pith_number":"pith:TN4PFPIB","canonical_record":{"source":{"id":"astro-ph/9911209","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-11T16:25:17Z","cross_cats_sorted":[],"title_canon_sha256":"50574660785c269e5a2209166a04e854c3cf548517ca1bb9a8f94f3578968ffd","abstract_canon_sha256":"c49a8bbd6d6b62dc211f8b649f15404a045484f34907cb54feaaf49b9bd3360c"},"schema_version":"1.0"},"canonical_sha256":"9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e","source":{"kind":"arxiv","id":"astro-ph/9911209","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9911209","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9911209v1","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9911209","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_12","alias_value":"TN4PFPIB3BKG","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_16","alias_value":"TN4PFPIB3BKGV54I","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_8","alias_value":"TN4PFPIB","created_at":"2026-07-04T14:17:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:TN4PFPIB3BKGV54IJ3SHZO6PDB","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9911209","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-11T16:25:17Z","cross_cats_sorted":[],"title_canon_sha256":"50574660785c269e5a2209166a04e854c3cf548517ca1bb9a8f94f3578968ffd","abstract_canon_sha256":"c49a8bbd6d6b62dc211f8b649f15404a045484f34907cb54feaaf49b9bd3360c"},"schema_version":"1.0"},"canonical_sha256":"9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:17:18.776385Z","signature_b64":"mZB5A7BVBG2O0JwspBYV7zRD1IT/SxFx5caIEgw/UffFw7W5bGenjmaFsTw2VbF9gZXSX216VApFPMls+YxlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e","last_reissued_at":"2026-07-04T14:17:18.776014Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:17:18.776014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9911209","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":"2026-07-04T14:17:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8inr9n87A4p4bBbBZ19b44hj5tQ5uLm/Z8z7xwrjNwqtlc1uPi+KhTRGmPzH/h7pQENwzPvIdCkV1IYpO3VUCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:10:40.792805Z"},"content_sha256":"ec7d052bef797ce451c30e98ac041007793c4e853e38d1650ae45231814ad008","schema_version":"1.0","event_id":"sha256:ec7d052bef797ce451c30e98ac041007793c4e853e38d1650ae45231814ad008"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:TN4PFPIB3BKGV54IJ3SHZO6PDB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Relativistic Astrophysics Explorer: A New Mission for X-Ray Timing","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E.H. Morgan, F.K. Lamb, J. Grindlay, J.H. Swank, P. Kaaret, W. Zhang","submitted_at":"1999-11-11T16:25:17Z","abstract_excerpt":"The great success of the Rossi X-Ray Timing Explorer (RXTE) has given us a new probe to study strong gravitational fields and to measure the physical properties of black holes and neutron stars. Here, we describe a \"next-generation\" x-ray timing mission, the Relativistic Astrophysics Explorer (RAE), designed to fit within the envelope of a \"medium-sized\" mission. The main instruments will be a narrow-field x-ray detector array with an area of at least ten times that of RXTE, and a wide-field x-ray monitor with good sensitivity and few arcminute position resolution. We describe the design of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9911209","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9911209/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":"2026-07-04T14:17:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Lsi9p4bzn4B3xhnFEDQmmni171mm/vJQhIsbfsvLZpOZDAOD4hTAfF3z4A0bSErx70Fp8p9XmklFdBzNdLcAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:10:40.793388Z"},"content_sha256":"cb51f89a1c10e4883c8cfa9de321c1089036ae49b926c31ae14f511ae12529ec","schema_version":"1.0","event_id":"sha256:cb51f89a1c10e4883c8cfa9de321c1089036ae49b926c31ae14f511ae12529ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/bundle.json","state_url":"https://pith.science/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/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":"2026-08-10T17:10:40Z","links":{"resolver":"https://pith.science/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB","bundle":"https://pith.science/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/bundle.json","state":"https://pith.science/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TN4PFPIB3BKGV54IJ3SHZO6PDB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:TN4PFPIB3BKGV54IJ3SHZO6PDB","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":"c49a8bbd6d6b62dc211f8b649f15404a045484f34907cb54feaaf49b9bd3360c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-11T16:25:17Z","title_canon_sha256":"50574660785c269e5a2209166a04e854c3cf548517ca1bb9a8f94f3578968ffd"},"schema_version":"1.0","source":{"id":"astro-ph/9911209","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9911209","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9911209v1","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9911209","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_12","alias_value":"TN4PFPIB3BKG","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_16","alias_value":"TN4PFPIB3BKGV54I","created_at":"2026-07-04T14:17:18Z"},{"alias_kind":"pith_short_8","alias_value":"TN4PFPIB","created_at":"2026-07-04T14:17:18Z"}],"graph_snapshots":[{"event_id":"sha256:cb51f89a1c10e4883c8cfa9de321c1089036ae49b926c31ae14f511ae12529ec","target":"graph","created_at":"2026-07-04T14:17:18Z","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/astro-ph/9911209/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The great success of the Rossi X-Ray Timing Explorer (RXTE) has given us a new probe to study strong gravitational fields and to measure the physical properties of black holes and neutron stars. Here, we describe a \"next-generation\" x-ray timing mission, the Relativistic Astrophysics Explorer (RAE), designed to fit within the envelope of a \"medium-sized\" mission. The main instruments will be a narrow-field x-ray detector array with an area of at least ten times that of RXTE, and a wide-field x-ray monitor with good sensitivity and few arcminute position resolution. We describe the design of th","authors_text":"E.H. Morgan, F.K. Lamb, J. Grindlay, J.H. Swank, P. Kaaret, W. Zhang","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-11-11T16:25:17Z","title":"The Relativistic Astrophysics Explorer: A New Mission for X-Ray Timing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9911209","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:ec7d052bef797ce451c30e98ac041007793c4e853e38d1650ae45231814ad008","target":"record","created_at":"2026-07-04T14:17:18Z","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":"c49a8bbd6d6b62dc211f8b649f15404a045484f34907cb54feaaf49b9bd3360c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-11T16:25:17Z","title_canon_sha256":"50574660785c269e5a2209166a04e854c3cf548517ca1bb9a8f94f3578968ffd"},"schema_version":"1.0","source":{"id":"astro-ph/9911209","kind":"arxiv","version":1}},"canonical_sha256":"9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b78f2bd01d8546af7884ee47cbbcf1854e9d7c2dae5666289913e92ffa4d38e","first_computed_at":"2026-07-04T14:17:18.776014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:17:18.776014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mZB5A7BVBG2O0JwspBYV7zRD1IT/SxFx5caIEgw/UffFw7W5bGenjmaFsTw2VbF9gZXSX216VApFPMls+YxlAA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:17:18.776385Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9911209","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec7d052bef797ce451c30e98ac041007793c4e853e38d1650ae45231814ad008","sha256:cb51f89a1c10e4883c8cfa9de321c1089036ae49b926c31ae14f511ae12529ec"],"state_sha256":"90efce4f9337d989a928828ee92b64bc23c18f9fb689979a55f7a7e330fb2a8e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"je6vfVDn4n2CwDqyAQ2duY8U0/FhY94d14acPqo07YafI1LtkFZ3Cu3gJRX2rlv45aOaijWgimED1WmqhsVyDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T17:10:40.798098Z","bundle_sha256":"e56fef7be827675760182659c1c66817b8a2bffab6c1f44b83fa223ae8eb1a96"}}