{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:K2FDFXY5IBEQZFNWRZVVAIU2FZ","short_pith_number":"pith:K2FDFXY5","canonical_record":{"source":{"id":"1906.02787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-06T19:42:44Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"6258f539bfd49ee873d488a2fa20dbff100885649a74fc8b9b1d0ef6ee043dae","abstract_canon_sha256":"5a22fb1ef9208cbbedecdbda7cc3b90a430ad34671c111a2b49db8997e8d48c9"},"schema_version":"1.0"},"canonical_sha256":"568a32df1d40490c95b68e6b50229a2e5ecde1699fda15640f20e4d7a69ab4b1","source":{"kind":"arxiv","id":"1906.02787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.02787","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1906.02787v1","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.02787","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"K2FDFXY5IBEQ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"K2FDFXY5IBEQZFNW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"K2FDFXY5","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:K2FDFXY5IBEQZFNWRZVVAIU2FZ","target":"record","payload":{"canonical_record":{"source":{"id":"1906.02787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-06T19:42:44Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"6258f539bfd49ee873d488a2fa20dbff100885649a74fc8b9b1d0ef6ee043dae","abstract_canon_sha256":"5a22fb1ef9208cbbedecdbda7cc3b90a430ad34671c111a2b49db8997e8d48c9"},"schema_version":"1.0"},"canonical_sha256":"568a32df1d40490c95b68e6b50229a2e5ecde1699fda15640f20e4d7a69ab4b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:18.567934Z","signature_b64":"5Hm649YtzPEtS/y6iVbexuXQ2yDH3SfEojy58j1KCJ0nzCPe+mgLhsJuiv7voug76o7NsC9pjEtQefoP2UW2Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"568a32df1d40490c95b68e6b50229a2e5ecde1699fda15640f20e4d7a69ab4b1","last_reissued_at":"2026-05-17T23:42:18.567475Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:18.567475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.02787","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":"2026-05-17T23:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YCJ8qy6nwbnHi9PZCjX2fNkxsxaycC26NXerJ4N/ykB651xu0tpOhtO2yPqUERAMgYf9dgufAWr8C1aNTb4qCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:24:52.486610Z"},"content_sha256":"477f50292991c3f8c69e9b7f151d7d3cf992f351a3d595ac9a43e9541e006953","schema_version":"1.0","event_id":"sha256:477f50292991c3f8c69e9b7f151d7d3cf992f351a3d595ac9a43e9541e006953"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:K2FDFXY5IBEQZFNWRZVVAIU2FZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The B-Star Exoplanet Abundance Study: a co-moving 16-25 Mjup companion to the young binary system HIP 79098","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Alexander J. Bohn, Arthur Vigan, Damien Andre, Eric E. Mamajek, Gabriel-Dominique Marleau, Gael Chauvin, Joseph C. Carson, Markus Janson, Maud Langlois, Mickael Bonnefoy, Philippe Delorme, Raffaele Gratton, Ruben Asensio-Torres, Sabine Reffert, Silvano Desidera, Simon C. Eriksson","submitted_at":"2019-06-06T19:42:44Z","abstract_excerpt":"Wide low-mass substellar companions are known to be very rare among low-mass stars, but appear to become increasingly common with increasing stellar mass. However, B-type stars, which are the most massive stars within ~150 pc of the Sun, have not yet been examined to the same extent as AFGKM-type stars in that regard. In order to address this issue, we launched the ongoing B-star Exoplanet Abundance Study (BEAST) to examine the frequency and properties of planets, brown dwarfs, and disks around B-type stars in the Scorpius-Centaurus (Sco-Cen) association; we also analyzed archival data of B-ty"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02787","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":"2026-05-17T23:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mF2jtMZJkZ+YFcM9g4eMkO2TuE0VbY7jIhGBNFpEUW7RcBAVDKEmtzTwvMXzewOsFDsIar1wkM1RjULiZ4HlCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:24:52.487300Z"},"content_sha256":"48018faebb8a3c4299de951e4bce3327ea643134327930ff20595aeabe71a25a","schema_version":"1.0","event_id":"sha256:48018faebb8a3c4299de951e4bce3327ea643134327930ff20595aeabe71a25a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/bundle.json","state_url":"https://pith.science/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/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":"2026-05-27T18:24:52Z","links":{"resolver":"https://pith.science/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ","bundle":"https://pith.science/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/bundle.json","state":"https://pith.science/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K2FDFXY5IBEQZFNWRZVVAIU2FZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:K2FDFXY5IBEQZFNWRZVVAIU2FZ","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":"5a22fb1ef9208cbbedecdbda7cc3b90a430ad34671c111a2b49db8997e8d48c9","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-06T19:42:44Z","title_canon_sha256":"6258f539bfd49ee873d488a2fa20dbff100885649a74fc8b9b1d0ef6ee043dae"},"schema_version":"1.0","source":{"id":"1906.02787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.02787","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1906.02787v1","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.02787","created_at":"2026-05-17T23:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"K2FDFXY5IBEQ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"K2FDFXY5IBEQZFNW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"K2FDFXY5","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:48018faebb8a3c4299de951e4bce3327ea643134327930ff20595aeabe71a25a","target":"graph","created_at":"2026-05-17T23:42:18Z","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":"Wide low-mass substellar companions are known to be very rare among low-mass stars, but appear to become increasingly common with increasing stellar mass. However, B-type stars, which are the most massive stars within ~150 pc of the Sun, have not yet been examined to the same extent as AFGKM-type stars in that regard. In order to address this issue, we launched the ongoing B-star Exoplanet Abundance Study (BEAST) to examine the frequency and properties of planets, brown dwarfs, and disks around B-type stars in the Scorpius-Centaurus (Sco-Cen) association; we also analyzed archival data of B-ty","authors_text":"Alexander J. Bohn, Arthur Vigan, Damien Andre, Eric E. Mamajek, Gabriel-Dominique Marleau, Gael Chauvin, Joseph C. Carson, Markus Janson, Maud Langlois, Mickael Bonnefoy, Philippe Delorme, Raffaele Gratton, Ruben Asensio-Torres, Sabine Reffert, Silvano Desidera, Simon C. Eriksson","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-06T19:42:44Z","title":"The B-Star Exoplanet Abundance Study: a co-moving 16-25 Mjup companion to the young binary system HIP 79098"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02787","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":"sha256:477f50292991c3f8c69e9b7f151d7d3cf992f351a3d595ac9a43e9541e006953","target":"record","created_at":"2026-05-17T23:42:18Z","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":"5a22fb1ef9208cbbedecdbda7cc3b90a430ad34671c111a2b49db8997e8d48c9","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-06T19:42:44Z","title_canon_sha256":"6258f539bfd49ee873d488a2fa20dbff100885649a74fc8b9b1d0ef6ee043dae"},"schema_version":"1.0","source":{"id":"1906.02787","kind":"arxiv","version":1}},"canonical_sha256":"568a32df1d40490c95b68e6b50229a2e5ecde1699fda15640f20e4d7a69ab4b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"568a32df1d40490c95b68e6b50229a2e5ecde1699fda15640f20e4d7a69ab4b1","first_computed_at":"2026-05-17T23:42:18.567475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:18.567475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Hm649YtzPEtS/y6iVbexuXQ2yDH3SfEojy58j1KCJ0nzCPe+mgLhsJuiv7voug76o7NsC9pjEtQefoP2UW2Dg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:18.567934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.02787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:477f50292991c3f8c69e9b7f151d7d3cf992f351a3d595ac9a43e9541e006953","sha256:48018faebb8a3c4299de951e4bce3327ea643134327930ff20595aeabe71a25a"],"state_sha256":"5b1c33e39cd552c255b0ea23157b4eb1f8c780c99f1c5f4cb9967a5b63f32545"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jFsKNyJJJVNPgfBZnDIfceOTPy2zBYA+ZDGE/CmwqHpN44GPt4oMdjg0znFTYdGnbmaxSk6RAuOw1A2bqN+HAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:24:52.490879Z","bundle_sha256":"d70ba271860b05749314157feef9c4b569960c0c36c2b4b4e8a2b8f576257dd7"}}