{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ULGSGYV6LP5CXH4TOX6UEYFLWQ","short_pith_number":"pith:ULGSGYV6","canonical_record":{"source":{"id":"1602.03022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-02-09T15:13:01Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"073ef2cca16fe2bd008c54585d48f5b02bcf6e45dfee72710710875745c99ec5","abstract_canon_sha256":"d1894e46bd635882d5f9291d5f7655d0e72e8b84cab543bf4a078a3e4be573f9"},"schema_version":"1.0"},"canonical_sha256":"a2cd2362be5bfa2b9f9375fd4260abb40026c486d027729fcc1c5c615a0d2d40","source":{"kind":"arxiv","id":"1602.03022","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03022","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03022v1","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03022","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"pith_short_12","alias_value":"ULGSGYV6LP5C","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"ULGSGYV6LP5CXH4T","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"ULGSGYV6","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ULGSGYV6LP5CXH4TOX6UEYFLWQ","target":"record","payload":{"canonical_record":{"source":{"id":"1602.03022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-02-09T15:13:01Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"073ef2cca16fe2bd008c54585d48f5b02bcf6e45dfee72710710875745c99ec5","abstract_canon_sha256":"d1894e46bd635882d5f9291d5f7655d0e72e8b84cab543bf4a078a3e4be573f9"},"schema_version":"1.0"},"canonical_sha256":"a2cd2362be5bfa2b9f9375fd4260abb40026c486d027729fcc1c5c615a0d2d40","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:37.502557Z","signature_b64":"ZIuT4f9dCuNHXtMM3Z2gi/RnMWKI6y9t0CkqJUj1BBDYJrQM+7xijD+hynSQ2vK4wjXPmyhb5AguN2j/4ZYFAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2cd2362be5bfa2b9f9375fd4260abb40026c486d027729fcc1c5c615a0d2d40","last_reissued_at":"2026-05-18T01:18:37.501967Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:37.501967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.03022","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":"2026-05-18T01:18:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8P05ikM6ilIsnn913ugB33/yU2bnKoWI5V0fVX2hl03ksI3l/z6BNa5gP1sJ9+faIbdeLu+NrCb9li2mwkZ7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:39:00.980227Z"},"content_sha256":"c867bda18f05c12480c8bcb88063d54630ba1068d5348f22cfcf7b6091ac67ff","schema_version":"1.0","event_id":"sha256:c867bda18f05c12480c8bcb88063d54630ba1068d5348f22cfcf7b6091ac67ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ULGSGYV6LP5CXH4TOX6UEYFLWQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The First Brown Dwarf/Planetary-Mass Object in the 32 Orionis Group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Adam J. Burgasser (UCSD), Caleb Choban (UCSD), Christian Aganze (Morehouse College), Eric E. Mamajek (U. Rochester), Ivanna Escala (UCSD/Caltech), Jacqueline K. Faherty (Carnegie DTM/AMNH), Jonathan Gagne (U. Montreal), Melisa Tallis (UCSD), Mike A. Lopez (UCSD)","submitted_at":"2016-02-09T15:13:01Z","abstract_excerpt":"The 32 Orionis group is a co-moving group of roughly 20 young (24 Myr) M3-B5 stars 100 pc from the Sun. Here we report the discovery of its first substellar member, WISE J052857.69+090104.2. This source was previously reported to be an M giant star based on its unusual near-infrared spectrum and lack of measurable proper motion. We re-analyze previous data and new moderate-resolution spectroscopy from Magellan/FIRE to demonstrate that this source is a young near-infrared L1 brown dwarf with very low surface gravity features. Spectral model fits indicate T$_{eff}$ = 1880$^{+150}_{-70}$ K and $\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03022","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":"2026-05-18T01:18:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J37b2RR8dTXI5iu8/pkKAlmoJmyPhUze4bY82bM92HDSUjodQXWJ+ciUgzHOj23HRjXJ0EQvnYlsz1WZvYOgDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:39:00.980633Z"},"content_sha256":"664a3547dd49bc49e5737148e9941ce67e9ea1c4345c3a5ae62557760dea539f","schema_version":"1.0","event_id":"sha256:664a3547dd49bc49e5737148e9941ce67e9ea1c4345c3a5ae62557760dea539f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/bundle.json","state_url":"https://pith.science/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/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":"2026-06-09T03:39:00Z","links":{"resolver":"https://pith.science/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ","bundle":"https://pith.science/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/bundle.json","state":"https://pith.science/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ULGSGYV6LP5CXH4TOX6UEYFLWQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ULGSGYV6LP5CXH4TOX6UEYFLWQ","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":"d1894e46bd635882d5f9291d5f7655d0e72e8b84cab543bf4a078a3e4be573f9","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-02-09T15:13:01Z","title_canon_sha256":"073ef2cca16fe2bd008c54585d48f5b02bcf6e45dfee72710710875745c99ec5"},"schema_version":"1.0","source":{"id":"1602.03022","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03022","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03022v1","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03022","created_at":"2026-05-18T01:18:37Z"},{"alias_kind":"pith_short_12","alias_value":"ULGSGYV6LP5C","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"ULGSGYV6LP5CXH4T","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"ULGSGYV6","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:664a3547dd49bc49e5737148e9941ce67e9ea1c4345c3a5ae62557760dea539f","target":"graph","created_at":"2026-05-18T01:18:37Z","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":"The 32 Orionis group is a co-moving group of roughly 20 young (24 Myr) M3-B5 stars 100 pc from the Sun. Here we report the discovery of its first substellar member, WISE J052857.69+090104.2. This source was previously reported to be an M giant star based on its unusual near-infrared spectrum and lack of measurable proper motion. We re-analyze previous data and new moderate-resolution spectroscopy from Magellan/FIRE to demonstrate that this source is a young near-infrared L1 brown dwarf with very low surface gravity features. Spectral model fits indicate T$_{eff}$ = 1880$^{+150}_{-70}$ K and $\\","authors_text":"Adam J. Burgasser (UCSD), Caleb Choban (UCSD), Christian Aganze (Morehouse College), Eric E. Mamajek (U. Rochester), Ivanna Escala (UCSD/Caltech), Jacqueline K. Faherty (Carnegie DTM/AMNH), Jonathan Gagne (U. Montreal), Melisa Tallis (UCSD), Mike A. Lopez (UCSD)","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-02-09T15:13:01Z","title":"The First Brown Dwarf/Planetary-Mass Object in the 32 Orionis Group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03022","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:c867bda18f05c12480c8bcb88063d54630ba1068d5348f22cfcf7b6091ac67ff","target":"record","created_at":"2026-05-18T01:18:37Z","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":"d1894e46bd635882d5f9291d5f7655d0e72e8b84cab543bf4a078a3e4be573f9","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-02-09T15:13:01Z","title_canon_sha256":"073ef2cca16fe2bd008c54585d48f5b02bcf6e45dfee72710710875745c99ec5"},"schema_version":"1.0","source":{"id":"1602.03022","kind":"arxiv","version":1}},"canonical_sha256":"a2cd2362be5bfa2b9f9375fd4260abb40026c486d027729fcc1c5c615a0d2d40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2cd2362be5bfa2b9f9375fd4260abb40026c486d027729fcc1c5c615a0d2d40","first_computed_at":"2026-05-18T01:18:37.501967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:37.501967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZIuT4f9dCuNHXtMM3Z2gi/RnMWKI6y9t0CkqJUj1BBDYJrQM+7xijD+hynSQ2vK4wjXPmyhb5AguN2j/4ZYFAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:37.502557Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.03022","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c867bda18f05c12480c8bcb88063d54630ba1068d5348f22cfcf7b6091ac67ff","sha256:664a3547dd49bc49e5737148e9941ce67e9ea1c4345c3a5ae62557760dea539f"],"state_sha256":"f8f2b4042298502bac82a9c2b34003838576b79e860ffdb23c8084c2789b8f0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t5JoM6sTpFo9e8xbzden+W43PPqvktY6T1TRb4gGu5tlRb1Tnu/oBLLnERscKamSHXyP9aI+Lhj6FDVIbRWhBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T03:39:00.983137Z","bundle_sha256":"ffab4ba0385726a59083879f87c246b731bf4e9e7d6a8b69d472c1dc88bd25cb"}}