{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:Z2PCYQBO3RJRBD27GUB7ZF6WKA","short_pith_number":"pith:Z2PCYQBO","canonical_record":{"source":{"id":"1204.3004","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-13T14:15:37Z","cross_cats_sorted":[],"title_canon_sha256":"82d0be50ad50c6715f763ea4eb67e65e6d04127cfdd9e16f39ed90e55f9af3f0","abstract_canon_sha256":"3129682e72ae717f5afe0d9c336e125408c8b72e058a8eac44c6d7ca11ce629f"},"schema_version":"1.0"},"canonical_sha256":"ce9e2c402edc53108f5f3503fc97d6501298b5a818f762b0a6fd04e80fe77b3c","source":{"kind":"arxiv","id":"1204.3004","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3004","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3004v1","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3004","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"Z2PCYQBO3RJR","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z2PCYQBO3RJRBD27","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z2PCYQBO","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:Z2PCYQBO3RJRBD27GUB7ZF6WKA","target":"record","payload":{"canonical_record":{"source":{"id":"1204.3004","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-13T14:15:37Z","cross_cats_sorted":[],"title_canon_sha256":"82d0be50ad50c6715f763ea4eb67e65e6d04127cfdd9e16f39ed90e55f9af3f0","abstract_canon_sha256":"3129682e72ae717f5afe0d9c336e125408c8b72e058a8eac44c6d7ca11ce629f"},"schema_version":"1.0"},"canonical_sha256":"ce9e2c402edc53108f5f3503fc97d6501298b5a818f762b0a6fd04e80fe77b3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:52.715363Z","signature_b64":"XV2XdeUFxJwyDvn7tyedR1QmiS8UEwbk7H9moJU/5f9MupkvKGc7riVelLd2uOsrHiMGCKTP7AE3qjIbfRCiDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce9e2c402edc53108f5f3503fc97d6501298b5a818f762b0a6fd04e80fe77b3c","last_reissued_at":"2026-05-18T01:57:52.714963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:52.714963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.3004","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":"2026-05-18T01:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"43zyr2kC8KAJ+ZikQB98TA4DsRsKraqWMzafp4neRwoqQCAE02I+jeQWuMbQWfxe+tRg+ODPZgOYTLK2gb9MDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T20:04:56.000143Z"},"content_sha256":"121c6c267099fad09c72e4499e5768bddf94b571335e396b44a4b322db2943d7","schema_version":"1.0","event_id":"sha256:121c6c267099fad09c72e4499e5768bddf94b571335e396b44a4b322db2943d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:Z2PCYQBO3RJRBD27GUB7ZF6WKA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time resolved spectroscopy of BD+46 442: gas streams and jet creation in a newly discovered evolved binary with a disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Jorissen, C. Gielen, C. Waelkens, G. Raskin, H. Hensberge, H. Van Winckel, L. Dumortier, N. Gorlova, S. Prins, S. Van Eck, W. Pessemier, Y. Fr\\'emat","submitted_at":"2012-04-13T14:15:37Z","abstract_excerpt":"Previous studies have shown that many post-AGB stars with dusty disks are associated with single-lined binary stars. To verify the binarity hypothesis on a larger sample, we started a high-resolution spectral monitoring of about 40 field giants, whose binarity was suspected based on either a light curve, an infrared excess, or a peculiar chemical composition. Here we report on the discovery of the periodic RV variations in BD+46 442, a high-latitude F giant with a disk. We interpret the variations due to the motion around a faint companion, and deduce the following orbital parameters: Porb = 1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3004","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":"2026-05-18T01:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EPaNSYbwE3aJ8JZkED3hSRequhPaEWpp83wdr6KoV1HifE1LZgWqYz7ChP868wuMSme9Rpi4lZu66jdKlmqBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T20:04:56.000572Z"},"content_sha256":"a2c65bf64c4c6914ecb6af441b57612043aeee507f9c055b13017727c3e57b8b","schema_version":"1.0","event_id":"sha256:a2c65bf64c4c6914ecb6af441b57612043aeee507f9c055b13017727c3e57b8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/bundle.json","state_url":"https://pith.science/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/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":"2026-05-18T20:04:56Z","links":{"resolver":"https://pith.science/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA","bundle":"https://pith.science/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/bundle.json","state":"https://pith.science/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2PCYQBO3RJRBD27GUB7ZF6WKA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Z2PCYQBO3RJRBD27GUB7ZF6WKA","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":"3129682e72ae717f5afe0d9c336e125408c8b72e058a8eac44c6d7ca11ce629f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-13T14:15:37Z","title_canon_sha256":"82d0be50ad50c6715f763ea4eb67e65e6d04127cfdd9e16f39ed90e55f9af3f0"},"schema_version":"1.0","source":{"id":"1204.3004","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3004","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3004v1","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3004","created_at":"2026-05-18T01:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"Z2PCYQBO3RJR","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z2PCYQBO3RJRBD27","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z2PCYQBO","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:a2c65bf64c4c6914ecb6af441b57612043aeee507f9c055b13017727c3e57b8b","target":"graph","created_at":"2026-05-18T01:57:52Z","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":"Previous studies have shown that many post-AGB stars with dusty disks are associated with single-lined binary stars. To verify the binarity hypothesis on a larger sample, we started a high-resolution spectral monitoring of about 40 field giants, whose binarity was suspected based on either a light curve, an infrared excess, or a peculiar chemical composition. Here we report on the discovery of the periodic RV variations in BD+46 442, a high-latitude F giant with a disk. We interpret the variations due to the motion around a faint companion, and deduce the following orbital parameters: Porb = 1","authors_text":"A. Jorissen, C. Gielen, C. Waelkens, G. Raskin, H. Hensberge, H. Van Winckel, L. Dumortier, N. Gorlova, S. Prins, S. Van Eck, W. Pessemier, Y. Fr\\'emat","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-13T14:15:37Z","title":"Time resolved spectroscopy of BD+46 442: gas streams and jet creation in a newly discovered evolved binary with a disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3004","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":"sha256:121c6c267099fad09c72e4499e5768bddf94b571335e396b44a4b322db2943d7","target":"record","created_at":"2026-05-18T01:57:52Z","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":"3129682e72ae717f5afe0d9c336e125408c8b72e058a8eac44c6d7ca11ce629f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-13T14:15:37Z","title_canon_sha256":"82d0be50ad50c6715f763ea4eb67e65e6d04127cfdd9e16f39ed90e55f9af3f0"},"schema_version":"1.0","source":{"id":"1204.3004","kind":"arxiv","version":1}},"canonical_sha256":"ce9e2c402edc53108f5f3503fc97d6501298b5a818f762b0a6fd04e80fe77b3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce9e2c402edc53108f5f3503fc97d6501298b5a818f762b0a6fd04e80fe77b3c","first_computed_at":"2026-05-18T01:57:52.714963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:52.714963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XV2XdeUFxJwyDvn7tyedR1QmiS8UEwbk7H9moJU/5f9MupkvKGc7riVelLd2uOsrHiMGCKTP7AE3qjIbfRCiDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:52.715363Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.3004","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:121c6c267099fad09c72e4499e5768bddf94b571335e396b44a4b322db2943d7","sha256:a2c65bf64c4c6914ecb6af441b57612043aeee507f9c055b13017727c3e57b8b"],"state_sha256":"47a2810c9246bf80a5fe52278a30b84e42e9ef411840df3baa939774bf735210"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PPUWnrMMhXJjhCaU4Dog8/InD8nkcRDU6Sn6kR78Ff+N3r69TcJHPxqd31Y4VUzKJOZk61OkJ0jXpoIeZV/rBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T20:04:56.001875Z","bundle_sha256":"b23b228231322efb117fb1a45ab67df61b1e3895989d52714eadbed37df34c88"}}