{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:FVO3OZY3FPZJVOHOFF2I4CPX3P","short_pith_number":"pith:FVO3OZY3","canonical_record":{"source":{"id":"1309.1176","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-04T20:10:01Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"170904442df2db29f3b4eff8332da4df824213bcc1ed43358832cf9b583ffacc","abstract_canon_sha256":"a4eae63d66802f5da8171f381f9deda14f596162cb3869800e417ab840062f45"},"schema_version":"1.0"},"canonical_sha256":"2d5db7671b2bf29ab8ee29748e09f7dbc4f864ffa32d91e8d6d497425602d780","source":{"kind":"arxiv","id":"1309.1176","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1176","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1176v1","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1176","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"pith_short_12","alias_value":"FVO3OZY3FPZJ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FVO3OZY3FPZJVOHO","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FVO3OZY3","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:FVO3OZY3FPZJVOHOFF2I4CPX3P","target":"record","payload":{"canonical_record":{"source":{"id":"1309.1176","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-04T20:10:01Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"170904442df2db29f3b4eff8332da4df824213bcc1ed43358832cf9b583ffacc","abstract_canon_sha256":"a4eae63d66802f5da8171f381f9deda14f596162cb3869800e417ab840062f45"},"schema_version":"1.0"},"canonical_sha256":"2d5db7671b2bf29ab8ee29748e09f7dbc4f864ffa32d91e8d6d497425602d780","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:14:08.048176Z","signature_b64":"CDjehThxTcnkoJ47J0tGx1Vw7E0910D3sfNZ0xozOV+yMjHfYG7H+QMK/2csytkFhqlBSMGE4/P+O25Gg0aPCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d5db7671b2bf29ab8ee29748e09f7dbc4f864ffa32d91e8d6d497425602d780","last_reissued_at":"2026-05-18T03:14:08.047573Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:14:08.047573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.1176","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":"2026-05-18T03:14:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FafIRjjFxKazmyitxTMxewz3dJHPRM0KwZGLd3ulcoYMRhYsqrvxtUU+qHvVebHNXbiJAsTUs2FlVY3Hdp02Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:12:20.858276Z"},"content_sha256":"98e5df72086f498e8a5e47b84dc5c4d2c0ea4a96a3fbfeb92395484e9f9a35b7","schema_version":"1.0","event_id":"sha256:98e5df72086f498e8a5e47b84dc5c4d2c0ea4a96a3fbfeb92395484e9f9a35b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:FVO3OZY3FPZJVOHOFF2I4CPX3P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kepler's Unparalleled Exploration of the Time Dimension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrej Prsa, Avi Shporer, Brian Kirk, Daniel C. Fabrycky, Daniel Huber, Eric B. Ford, Gur Windmiller, Jerome Orosz, Joshua Pepper, Kaitlin Kratter, Kyle Conroy, Laurance Doyle, Nader Haghighipour, Stephen Kane, Steven Bloemen, Tsevi Mazeh, Veselin Kostov, William Welsh","submitted_at":"2013-09-04T20:10:01Z","abstract_excerpt":"We show that the Kepler spacecraft in two-reaction wheel mode of operation is very well suited for the study of eclipsing binary star systems. Continued observations of the Kepler field will provide the most enduring and long-term valuable science. It will enable the discovery and characterization of eclipsing binaries with periods greater than 1 year - these are the most important, yet least understood binaries for habitable-zone planet background considerations. The continued mission will also enable the investigation of hierarchical multiple systems (discovered through eclipse timing variat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1176","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":"2026-05-18T03:14:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HKuiVsHqm8sIaKKR6FDw453R4qmL7UtLNkB2jX+xyic6BRtvMOrq1z1smcm2xXIgRkx4kKMxwl67Cli7kF77BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:12:20.859003Z"},"content_sha256":"e6ce720ef8bc0733e83fd68fb5c13b8da5bd94b1753adaddda23376d9142c9ba","schema_version":"1.0","event_id":"sha256:e6ce720ef8bc0733e83fd68fb5c13b8da5bd94b1753adaddda23376d9142c9ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/bundle.json","state_url":"https://pith.science/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/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":"2026-05-25T16:12:20Z","links":{"resolver":"https://pith.science/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P","bundle":"https://pith.science/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/bundle.json","state":"https://pith.science/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FVO3OZY3FPZJVOHOFF2I4CPX3P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FVO3OZY3FPZJVOHOFF2I4CPX3P","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":"a4eae63d66802f5da8171f381f9deda14f596162cb3869800e417ab840062f45","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-04T20:10:01Z","title_canon_sha256":"170904442df2db29f3b4eff8332da4df824213bcc1ed43358832cf9b583ffacc"},"schema_version":"1.0","source":{"id":"1309.1176","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1176","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1176v1","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1176","created_at":"2026-05-18T03:14:08Z"},{"alias_kind":"pith_short_12","alias_value":"FVO3OZY3FPZJ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FVO3OZY3FPZJVOHO","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FVO3OZY3","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:e6ce720ef8bc0733e83fd68fb5c13b8da5bd94b1753adaddda23376d9142c9ba","target":"graph","created_at":"2026-05-18T03:14:08Z","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 show that the Kepler spacecraft in two-reaction wheel mode of operation is very well suited for the study of eclipsing binary star systems. Continued observations of the Kepler field will provide the most enduring and long-term valuable science. It will enable the discovery and characterization of eclipsing binaries with periods greater than 1 year - these are the most important, yet least understood binaries for habitable-zone planet background considerations. The continued mission will also enable the investigation of hierarchical multiple systems (discovered through eclipse timing variat","authors_text":"Andrej Prsa, Avi Shporer, Brian Kirk, Daniel C. Fabrycky, Daniel Huber, Eric B. Ford, Gur Windmiller, Jerome Orosz, Joshua Pepper, Kaitlin Kratter, Kyle Conroy, Laurance Doyle, Nader Haghighipour, Stephen Kane, Steven Bloemen, Tsevi Mazeh, Veselin Kostov, William Welsh","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-04T20:10:01Z","title":"Kepler's Unparalleled Exploration of the Time Dimension"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1176","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":"sha256:98e5df72086f498e8a5e47b84dc5c4d2c0ea4a96a3fbfeb92395484e9f9a35b7","target":"record","created_at":"2026-05-18T03:14:08Z","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":"a4eae63d66802f5da8171f381f9deda14f596162cb3869800e417ab840062f45","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-04T20:10:01Z","title_canon_sha256":"170904442df2db29f3b4eff8332da4df824213bcc1ed43358832cf9b583ffacc"},"schema_version":"1.0","source":{"id":"1309.1176","kind":"arxiv","version":1}},"canonical_sha256":"2d5db7671b2bf29ab8ee29748e09f7dbc4f864ffa32d91e8d6d497425602d780","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d5db7671b2bf29ab8ee29748e09f7dbc4f864ffa32d91e8d6d497425602d780","first_computed_at":"2026-05-18T03:14:08.047573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:14:08.047573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CDjehThxTcnkoJ47J0tGx1Vw7E0910D3sfNZ0xozOV+yMjHfYG7H+QMK/2csytkFhqlBSMGE4/P+O25Gg0aPCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:14:08.048176Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.1176","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98e5df72086f498e8a5e47b84dc5c4d2c0ea4a96a3fbfeb92395484e9f9a35b7","sha256:e6ce720ef8bc0733e83fd68fb5c13b8da5bd94b1753adaddda23376d9142c9ba"],"state_sha256":"ab6de2f1ad4bb97bcbb4803489b78857f26c81b5c110ea56c6b75200a03a7191"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ccrPV22UcDJbBNTtLedeZ20OVR7XBLDAUntHeESqz7XzghtJlk2HDVaXOBOAsNvZFBeB8+aEKi+s/TjOqb3SCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:12:20.863048Z","bundle_sha256":"f3de685826c737bb57d02e8d3cd7f383c5c22747c34c27913f38c65f6e4a4e01"}}