{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:OXZ6MUFXJKASYKKW3SEQPWV7LY","short_pith_number":"pith:OXZ6MUFX","canonical_record":{"source":{"id":"2207.08917","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-18T20:13:02Z","cross_cats_sorted":[],"title_canon_sha256":"9fc8d588680df0e5dfb4bbca7e3bdad5abab29b059b0fd16005fafa9135bd4c0","abstract_canon_sha256":"3266e6ec7272ccead96c042ff672e2fd86cdb0d92b3d91890328010369235a75"},"schema_version":"1.0"},"canonical_sha256":"75f3e650b74a812c2956dc8907dabf5e39dff9579097a4be10cf6b146f6f113d","source":{"kind":"arxiv","id":"2207.08917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.08917","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"arxiv_version","alias_value":"2207.08917v1","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.08917","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_12","alias_value":"OXZ6MUFXJKAS","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_16","alias_value":"OXZ6MUFXJKASYKKW","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_8","alias_value":"OXZ6MUFX","created_at":"2026-07-05T04:41:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:OXZ6MUFXJKASYKKW3SEQPWV7LY","target":"record","payload":{"canonical_record":{"source":{"id":"2207.08917","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-18T20:13:02Z","cross_cats_sorted":[],"title_canon_sha256":"9fc8d588680df0e5dfb4bbca7e3bdad5abab29b059b0fd16005fafa9135bd4c0","abstract_canon_sha256":"3266e6ec7272ccead96c042ff672e2fd86cdb0d92b3d91890328010369235a75"},"schema_version":"1.0"},"canonical_sha256":"75f3e650b74a812c2956dc8907dabf5e39dff9579097a4be10cf6b146f6f113d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:41:14.898528Z","signature_b64":"nANlMa8h/CZyHrXu1F8j4FXc0kxExjm0lpo0Qpv0c/RQYcb7zPaXjEVSYMUiLHwCCjaOxHHAPhmCqbTNj7S6Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75f3e650b74a812c2956dc8907dabf5e39dff9579097a4be10cf6b146f6f113d","last_reissued_at":"2026-07-05T04:41:14.898103Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:41:14.898103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.08917","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":"2026-07-05T04:41:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"18LXR6PYRFo4EukFtBjHF9IGJVhr0/e6HWq4kKy2EFz6ceoINx+ILjTQ5FOB0IxINanYzvu+Gpag44cMIsW+Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:51:12.023371Z"},"content_sha256":"cdf6eb809265326a9768cf19b0e9f64b735f26b8268daae29607b0a4334c69fc","schema_version":"1.0","event_id":"sha256:cdf6eb809265326a9768cf19b0e9f64b735f26b8268daae29607b0a4334c69fc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:OXZ6MUFXJKASYKKW3SEQPWV7LY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"TESS Observations of Kepler systems with Transit Timing Variations","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Daniel Jontof-Hutter, John H. Livingston, Paul A. Dalba","submitted_at":"2022-07-18T20:13:02Z","abstract_excerpt":"We identify targets in the Kepler field that may be characterized by transit timing variations (TTVs) and are detectable by the Transiting Exoplanet Survey Satellite (TESS). Despite the reduced signal-to-noise ratio of TESS transits compared to Kepler, we recover 48 transits from 13 systems in Sectors 14, 15, 26, 40 and 41. We find strong evidence of a nontransiting perturber orbiting Kepler-396 (KOI-2672) and explore two possible cases of a third planet in that system that could explain the measured transit times. We update the ephemerides and mass constraints where possible at KOI-70 (Kepler"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.08917","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/2207.08917/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":"2026-07-05T04:41:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tLnXnsLDizbSYXxKr3N4GKKAuZw5r9tuEadSZhdGm4VU6W74oCvV86WMccFH/7zh2Jnd76uqLLZkUC9XfygIBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:51:12.026828Z"},"content_sha256":"e6b287945878202fe700cba8ef39a5a71b03dd1fdcfca8dc9acc19bf3f2b2a40","schema_version":"1.0","event_id":"sha256:e6b287945878202fe700cba8ef39a5a71b03dd1fdcfca8dc9acc19bf3f2b2a40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/bundle.json","state_url":"https://pith.science/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/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":"2026-08-12T16:51:12Z","links":{"resolver":"https://pith.science/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY","bundle":"https://pith.science/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/bundle.json","state":"https://pith.science/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OXZ6MUFXJKASYKKW3SEQPWV7LY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:OXZ6MUFXJKASYKKW3SEQPWV7LY","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":"3266e6ec7272ccead96c042ff672e2fd86cdb0d92b3d91890328010369235a75","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-18T20:13:02Z","title_canon_sha256":"9fc8d588680df0e5dfb4bbca7e3bdad5abab29b059b0fd16005fafa9135bd4c0"},"schema_version":"1.0","source":{"id":"2207.08917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.08917","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"arxiv_version","alias_value":"2207.08917v1","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.08917","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_12","alias_value":"OXZ6MUFXJKAS","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_16","alias_value":"OXZ6MUFXJKASYKKW","created_at":"2026-07-05T04:41:14Z"},{"alias_kind":"pith_short_8","alias_value":"OXZ6MUFX","created_at":"2026-07-05T04:41:14Z"}],"graph_snapshots":[{"event_id":"sha256:e6b287945878202fe700cba8ef39a5a71b03dd1fdcfca8dc9acc19bf3f2b2a40","target":"graph","created_at":"2026-07-05T04:41:14Z","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/2207.08917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We identify targets in the Kepler field that may be characterized by transit timing variations (TTVs) and are detectable by the Transiting Exoplanet Survey Satellite (TESS). Despite the reduced signal-to-noise ratio of TESS transits compared to Kepler, we recover 48 transits from 13 systems in Sectors 14, 15, 26, 40 and 41. We find strong evidence of a nontransiting perturber orbiting Kepler-396 (KOI-2672) and explore two possible cases of a third planet in that system that could explain the measured transit times. We update the ephemerides and mass constraints where possible at KOI-70 (Kepler","authors_text":"Daniel Jontof-Hutter, John H. Livingston, Paul A. Dalba","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-18T20:13:02Z","title":"TESS Observations of Kepler systems with Transit Timing Variations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.08917","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:cdf6eb809265326a9768cf19b0e9f64b735f26b8268daae29607b0a4334c69fc","target":"record","created_at":"2026-07-05T04:41:14Z","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":"3266e6ec7272ccead96c042ff672e2fd86cdb0d92b3d91890328010369235a75","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-18T20:13:02Z","title_canon_sha256":"9fc8d588680df0e5dfb4bbca7e3bdad5abab29b059b0fd16005fafa9135bd4c0"},"schema_version":"1.0","source":{"id":"2207.08917","kind":"arxiv","version":1}},"canonical_sha256":"75f3e650b74a812c2956dc8907dabf5e39dff9579097a4be10cf6b146f6f113d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75f3e650b74a812c2956dc8907dabf5e39dff9579097a4be10cf6b146f6f113d","first_computed_at":"2026-07-05T04:41:14.898103Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:41:14.898103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nANlMa8h/CZyHrXu1F8j4FXc0kxExjm0lpo0Qpv0c/RQYcb7zPaXjEVSYMUiLHwCCjaOxHHAPhmCqbTNj7S6Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T04:41:14.898528Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.08917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cdf6eb809265326a9768cf19b0e9f64b735f26b8268daae29607b0a4334c69fc","sha256:e6b287945878202fe700cba8ef39a5a71b03dd1fdcfca8dc9acc19bf3f2b2a40"],"state_sha256":"bcf21a4eaae1f27e50677cd78dd14f1e9b3585e7ca72a17807cd81e6f76d7460"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qdEkNyH7Dz7wPWlRES7sIYu+NfahGUsyVTmp2TQ/mZrt2K6v5+W6/iglfz9BMperod0SjYUX0XaibKjG2pUuCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T16:51:12.052428Z","bundle_sha256":"a8da603c63ed8eb486068bccdf46885ea203d67752298648725722aaaa0129e2"}}