{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:43JVVF2VSVKXI24NBH4POL5UE4","short_pith_number":"pith:43JVVF2V","canonical_record":{"source":{"id":"1907.02476","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-04T16:13:47Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"999715e5ce0d7a8939db864d38d319ff80c564dcb26972b16a1773c7de6ea971","abstract_canon_sha256":"1e0115b3dd54adad5e2f5d5b93a6466374b7e680fc6fde0a3389cffd386a78b4"},"schema_version":"1.0"},"canonical_sha256":"e6d35a97559555746b8d09f8f72fb42722d52dd758c72f7aecdfc73394a56f1f","source":{"kind":"arxiv","id":"1907.02476","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02476","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02476v1","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02476","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"pith_short_12","alias_value":"43JVVF2VSVKX","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"43JVVF2VSVKXI24N","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"43JVVF2V","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:43JVVF2VSVKXI24NBH4POL5UE4","target":"record","payload":{"canonical_record":{"source":{"id":"1907.02476","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-04T16:13:47Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"999715e5ce0d7a8939db864d38d319ff80c564dcb26972b16a1773c7de6ea971","abstract_canon_sha256":"1e0115b3dd54adad5e2f5d5b93a6466374b7e680fc6fde0a3389cffd386a78b4"},"schema_version":"1.0"},"canonical_sha256":"e6d35a97559555746b8d09f8f72fb42722d52dd758c72f7aecdfc73394a56f1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:42.813456Z","signature_b64":"RIqEZzC06+xnlVpkKtdL0sQa3rAUb/HA1YLgs/gAAwRk66mCcdX+BCtFxoz8SNSMF0TZeYG/8VmEPlBW9BuoBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6d35a97559555746b8d09f8f72fb42722d52dd758c72f7aecdfc73394a56f1f","last_reissued_at":"2026-05-17T23:39:42.812741Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:42.812741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.02476","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":"2026-05-17T23:39:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f39BgtJlQB36yyP/Heq/Rt042e3hNeA6pMxTcRIBjPW9fIYfhtz8zchbzD8JLUOAi7/SN7VyJ/a89ut6vjTRCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:12:46.141946Z"},"content_sha256":"b0c97aeec833202a6f1f302fbe5372ba7e9fe85702c26b6de460c98f588b3f6e","schema_version":"1.0","event_id":"sha256:b0c97aeec833202a6f1f302fbe5372ba7e9fe85702c26b6de460c98f588b3f6e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:43JVVF2VSVKXI24NBH4POL5UE4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planetesimals Around Stars with TESS (PAST): I. Transient Dimming of a Binary Solar Analog at the End of the Planet Accretion Era","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Behmard, A. Vanderburg, A. W. Howard, A. W. Mann, B. Fulton, D. LaCourse, D. W. Latham, E. Gaidos, G. R. Ricker, J. M. Jenkins, J. N. Winn, L. Pearce, L. Weiss, M. Ansdell, R. K. Vanderspek, S. Rappaport, S. Seager, T. Berger, T. Jacobs","submitted_at":"2019-07-04T16:13:47Z","abstract_excerpt":"We report detection of quasi-periodic (1.5 day) dimming of HD 240779, the solar-mass primary in a 5\" visual binary (also TIC 284730577), by the Transiting Exoplanet Survey Satellite. This dimming, as has been shown for other \"dipper\" stars, is likely due to occultation by circumstellar dust. The barycentric space motion, lithium abundance, rotation, and chromospheric emission of the stars in this system point to an age of ~125 Myr, and possible membership in the AB Doradus moving group. As such it occupies an important but poorly explored intermediate regime of stars with transient dimming bet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02476","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":"2026-05-17T23:39:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+3YoFxqt6lyHB8JzA/aj6mIns29V3ubak8ifv8FRA/ZexBTAB1bGL70NQQAQ/Orou4TvN8qANDLizXNGmVs8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:12:46.142617Z"},"content_sha256":"2a8c61282ff1b404d46b30136a51ef13862b5f0de23e53f1ecf1a6b148be96a2","schema_version":"1.0","event_id":"sha256:2a8c61282ff1b404d46b30136a51ef13862b5f0de23e53f1ecf1a6b148be96a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/43JVVF2VSVKXI24NBH4POL5UE4/bundle.json","state_url":"https://pith.science/pith/43JVVF2VSVKXI24NBH4POL5UE4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/43JVVF2VSVKXI24NBH4POL5UE4/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":"2026-05-27T08:12:46Z","links":{"resolver":"https://pith.science/pith/43JVVF2VSVKXI24NBH4POL5UE4","bundle":"https://pith.science/pith/43JVVF2VSVKXI24NBH4POL5UE4/bundle.json","state":"https://pith.science/pith/43JVVF2VSVKXI24NBH4POL5UE4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/43JVVF2VSVKXI24NBH4POL5UE4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:43JVVF2VSVKXI24NBH4POL5UE4","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":"1e0115b3dd54adad5e2f5d5b93a6466374b7e680fc6fde0a3389cffd386a78b4","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-04T16:13:47Z","title_canon_sha256":"999715e5ce0d7a8939db864d38d319ff80c564dcb26972b16a1773c7de6ea971"},"schema_version":"1.0","source":{"id":"1907.02476","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02476","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02476v1","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02476","created_at":"2026-05-17T23:39:42Z"},{"alias_kind":"pith_short_12","alias_value":"43JVVF2VSVKX","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"43JVVF2VSVKXI24N","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"43JVVF2V","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:2a8c61282ff1b404d46b30136a51ef13862b5f0de23e53f1ecf1a6b148be96a2","target":"graph","created_at":"2026-05-17T23:39:42Z","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 report detection of quasi-periodic (1.5 day) dimming of HD 240779, the solar-mass primary in a 5\" visual binary (also TIC 284730577), by the Transiting Exoplanet Survey Satellite. This dimming, as has been shown for other \"dipper\" stars, is likely due to occultation by circumstellar dust. The barycentric space motion, lithium abundance, rotation, and chromospheric emission of the stars in this system point to an age of ~125 Myr, and possible membership in the AB Doradus moving group. As such it occupies an important but poorly explored intermediate regime of stars with transient dimming bet","authors_text":"A. Behmard, A. Vanderburg, A. W. Howard, A. W. Mann, B. Fulton, D. LaCourse, D. W. Latham, E. Gaidos, G. R. Ricker, J. M. Jenkins, J. N. Winn, L. Pearce, L. Weiss, M. Ansdell, R. K. Vanderspek, S. Rappaport, S. Seager, T. Berger, T. Jacobs","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-04T16:13:47Z","title":"Planetesimals Around Stars with TESS (PAST): I. Transient Dimming of a Binary Solar Analog at the End of the Planet Accretion Era"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02476","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:b0c97aeec833202a6f1f302fbe5372ba7e9fe85702c26b6de460c98f588b3f6e","target":"record","created_at":"2026-05-17T23:39:42Z","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":"1e0115b3dd54adad5e2f5d5b93a6466374b7e680fc6fde0a3389cffd386a78b4","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-04T16:13:47Z","title_canon_sha256":"999715e5ce0d7a8939db864d38d319ff80c564dcb26972b16a1773c7de6ea971"},"schema_version":"1.0","source":{"id":"1907.02476","kind":"arxiv","version":1}},"canonical_sha256":"e6d35a97559555746b8d09f8f72fb42722d52dd758c72f7aecdfc73394a56f1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6d35a97559555746b8d09f8f72fb42722d52dd758c72f7aecdfc73394a56f1f","first_computed_at":"2026-05-17T23:39:42.812741Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:42.812741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RIqEZzC06+xnlVpkKtdL0sQa3rAUb/HA1YLgs/gAAwRk66mCcdX+BCtFxoz8SNSMF0TZeYG/8VmEPlBW9BuoBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:42.813456Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.02476","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0c97aeec833202a6f1f302fbe5372ba7e9fe85702c26b6de460c98f588b3f6e","sha256:2a8c61282ff1b404d46b30136a51ef13862b5f0de23e53f1ecf1a6b148be96a2"],"state_sha256":"bfae5b5e31d81b35c7b4c0f7cdb0e232bd5b56041a2df7616a348bf2b797988e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YcO44D+/z49ftFZguNTPKLoM83mJqOl6DUMakpfjRYa3Kh1IT8jXAEmzVHGKAXmulrGG8ePJZI5JQs6WtPdPDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:12:46.145781Z","bundle_sha256":"6bc191ee5c82a180c993559109382613a429a8447581c43a8ceb2f4c3346401c"}}