{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JZKRYJP7L673C4TANTERCLLN6G","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":"e36cf6a49d918707d60796e118c5ceb01d6a589df01ac7c378f166823d17156e","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-12-05T13:26:50Z","title_canon_sha256":"2af9119404e23921a326e7e51bf1db37c191fd61bfa9d021e4750208720169c5"},"schema_version":"1.0","source":{"id":"1912.02565","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.02565","created_at":"2026-07-05T00:28:15Z"},{"alias_kind":"arxiv_version","alias_value":"1912.02565v2","created_at":"2026-07-05T00:28:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.02565","created_at":"2026-07-05T00:28:15Z"},{"alias_kind":"pith_short_12","alias_value":"JZKRYJP7L673","created_at":"2026-07-05T00:28:15Z"},{"alias_kind":"pith_short_16","alias_value":"JZKRYJP7L673C4TA","created_at":"2026-07-05T00:28:15Z"},{"alias_kind":"pith_short_8","alias_value":"JZKRYJP7","created_at":"2026-07-05T00:28:15Z"}],"graph_snapshots":[{"event_id":"sha256:cdc2adf4d296ab4b51e22c562f3af1a6fda619865f7b57eb608eee67362b03a7","target":"graph","created_at":"2026-07-05T00:28:15Z","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/1912.02565/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context. HD72946 is a bright and nearby solar-type star hosting a low-mass companion at long period (P~16 yr) detected with the radial velocities (RV) method. The companion has a minimum mass of 60.4+/-2.2 MJ and might be a brown dwarf. Its expected semi-major axis of ~243 mas makes it a suitable target for further characterization with high-contrast imaging, in particular to measure its inclination, mass, and spectrum and thus definitely establish its substellar nature. Aims. We aim to further characterize the orbit, atmosphere, and physical nature of HD72946B. Methods. We present high-contra","authors_text":"A.-L. Maire, F. Cantalloube, G. Chauvin, J. Hagelberg, J.-L. Baudino, J. Olofsson, M. Bonnefoy, M. Langlois, N. Godoy, O. Absil, R. Galicher, S. Desidera, S. Messina, T. Henning, W. Brandner","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-12-05T13:26:50Z","title":"A dusty benchmark brown dwarf near the ice line of HD 72946"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.02565","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":"sha256:2ea0eb1edff61221782c155f56986f0a51ac2aead704eb377ea64bc74606f363","target":"record","created_at":"2026-07-05T00:28:15Z","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":"e36cf6a49d918707d60796e118c5ceb01d6a589df01ac7c378f166823d17156e","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-12-05T13:26:50Z","title_canon_sha256":"2af9119404e23921a326e7e51bf1db37c191fd61bfa9d021e4750208720169c5"},"schema_version":"1.0","source":{"id":"1912.02565","kind":"arxiv","version":2}},"canonical_sha256":"4e551c25ff5fbfb172606cc9112d6df1b547dd2753c7f1abe46905bff8b07eab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e551c25ff5fbfb172606cc9112d6df1b547dd2753c7f1abe46905bff8b07eab","first_computed_at":"2026-07-05T00:28:15.829575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:28:15.829575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NMp3amQO9+41Uk0j0ZD+wSXCZEwfKJ0gP8L+Mq9fp0OG+MrtWs+s5zBcJJk2mnwUDtHjlczN4mkqtmXgPYbUDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:28:15.830019Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.02565","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ea0eb1edff61221782c155f56986f0a51ac2aead704eb377ea64bc74606f363","sha256:cdc2adf4d296ab4b51e22c562f3af1a6fda619865f7b57eb608eee67362b03a7"],"state_sha256":"1b412d5ad2963ce637a284fb42070e2f494a29712101798d2829836f47122b3d"}