{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KYJOFXLDVJMVK4XTDOERJ24AEJ","short_pith_number":"pith:KYJOFXLD","canonical_record":{"source":{"id":"1311.1552","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-07T00:44:42Z","cross_cats_sorted":[],"title_canon_sha256":"23dd22341b7ef696145593dd6bf6a0d9e793b29e6ba687de7508cab37925b1c1","abstract_canon_sha256":"e4284f05cf611412b09a16ae87574ad7941f08e64884da3dfa11c057ee6fc5d6"},"schema_version":"1.0"},"canonical_sha256":"5612e2dd63aa595572f31b8914eb80227dd78ace2a90822740fd19ceea27e3c1","source":{"kind":"arxiv","id":"1311.1552","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1552","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1552v2","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1552","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"KYJOFXLDVJMV","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYJOFXLDVJMVK4XT","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYJOFXLD","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KYJOFXLDVJMVK4XTDOERJ24AEJ","target":"record","payload":{"canonical_record":{"source":{"id":"1311.1552","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-07T00:44:42Z","cross_cats_sorted":[],"title_canon_sha256":"23dd22341b7ef696145593dd6bf6a0d9e793b29e6ba687de7508cab37925b1c1","abstract_canon_sha256":"e4284f05cf611412b09a16ae87574ad7941f08e64884da3dfa11c057ee6fc5d6"},"schema_version":"1.0"},"canonical_sha256":"5612e2dd63aa595572f31b8914eb80227dd78ace2a90822740fd19ceea27e3c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:38.035685Z","signature_b64":"FTuQ0ANW/pSbx+rTV7Py+4IPpPYYl/mnBrXG+dQmUv3qCBSpxTPGX3F9R7E8fuCym2ry/ADWPVa0xmkMJhGuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5612e2dd63aa595572f31b8914eb80227dd78ace2a90822740fd19ceea27e3c1","last_reissued_at":"2026-05-18T01:46:38.035206Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:38.035206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.1552","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p/aAliN1LkSessm1i917lD9qm9nHXPYRVEsoEoiDU+Sec4Z9xV6hGpJU6lnOkA0WY0xsm9B1kKD4JQCYVyS4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:23:10.803915Z"},"content_sha256":"aa484e32fc41dbf214b30266ab92917575a45101eea36d5f8556f5b52e8a60fa","schema_version":"1.0","event_id":"sha256:aa484e32fc41dbf214b30266ab92917575a45101eea36d5f8556f5b52e8a60fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KYJOFXLDVJMVK4XTDOERJ24AEJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical peculiarities in magnetic and non-magnetic pre-main sequence A and B stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C.P. Folsom, E. Alecian, G.A. Wade, J.D. Landstreet, S. Bagnulo","submitted_at":"2013-11-07T00:44:42Z","abstract_excerpt":"In A- and late B-type stars, strong magnetic fields are always associated with Ap and Bp chemical peculiarities. However, it is not clear at what point in a star's evolution those peculiarities develop. Strong magnetic fields have been observed in pre-main sequence A and B stars (Herbig Ae and Be stars), and these objects have been proposed to be the progenitors of Ap and Bp stars. However, the photospheric chemical abundances of these magnetic Herbig stars have not been studied carefully, and furthermore the chemical abundances of 'normal' non-magnetic Herbig stars remain poorly characterized"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1552","kind":"arxiv","version":2},"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":"2026-05-18T01:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMEoXt4bSlh7w1BlcBe20Nqy9lc0HL1i/RjT9jXTLC49cUlF/4qHCrzPBqnklzciQvKIyfMENG2jLK7FgO+KBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:23:10.804551Z"},"content_sha256":"ab311ca0706b60867c2092cd47bc5e4307e31c420c5561219e30b5154c774a73","schema_version":"1.0","event_id":"sha256:ab311ca0706b60867c2092cd47bc5e4307e31c420c5561219e30b5154c774a73"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/bundle.json","state_url":"https://pith.science/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/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":"2026-05-25T10:23:10Z","links":{"resolver":"https://pith.science/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ","bundle":"https://pith.science/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/bundle.json","state":"https://pith.science/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KYJOFXLDVJMVK4XTDOERJ24AEJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KYJOFXLDVJMVK4XTDOERJ24AEJ","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":"e4284f05cf611412b09a16ae87574ad7941f08e64884da3dfa11c057ee6fc5d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-07T00:44:42Z","title_canon_sha256":"23dd22341b7ef696145593dd6bf6a0d9e793b29e6ba687de7508cab37925b1c1"},"schema_version":"1.0","source":{"id":"1311.1552","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1552","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1552v2","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1552","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"KYJOFXLDVJMV","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYJOFXLDVJMVK4XT","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYJOFXLD","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:ab311ca0706b60867c2092cd47bc5e4307e31c420c5561219e30b5154c774a73","target":"graph","created_at":"2026-05-18T01:46:38Z","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":"In A- and late B-type stars, strong magnetic fields are always associated with Ap and Bp chemical peculiarities. However, it is not clear at what point in a star's evolution those peculiarities develop. Strong magnetic fields have been observed in pre-main sequence A and B stars (Herbig Ae and Be stars), and these objects have been proposed to be the progenitors of Ap and Bp stars. However, the photospheric chemical abundances of these magnetic Herbig stars have not been studied carefully, and furthermore the chemical abundances of 'normal' non-magnetic Herbig stars remain poorly characterized","authors_text":"C.P. Folsom, E. Alecian, G.A. Wade, J.D. Landstreet, S. Bagnulo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-07T00:44:42Z","title":"Chemical peculiarities in magnetic and non-magnetic pre-main sequence A and B stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1552","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:aa484e32fc41dbf214b30266ab92917575a45101eea36d5f8556f5b52e8a60fa","target":"record","created_at":"2026-05-18T01:46:38Z","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":"e4284f05cf611412b09a16ae87574ad7941f08e64884da3dfa11c057ee6fc5d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-07T00:44:42Z","title_canon_sha256":"23dd22341b7ef696145593dd6bf6a0d9e793b29e6ba687de7508cab37925b1c1"},"schema_version":"1.0","source":{"id":"1311.1552","kind":"arxiv","version":2}},"canonical_sha256":"5612e2dd63aa595572f31b8914eb80227dd78ace2a90822740fd19ceea27e3c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5612e2dd63aa595572f31b8914eb80227dd78ace2a90822740fd19ceea27e3c1","first_computed_at":"2026-05-18T01:46:38.035206Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:38.035206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FTuQ0ANW/pSbx+rTV7Py+4IPpPYYl/mnBrXG+dQmUv3qCBSpxTPGX3F9R7E8fuCym2ry/ADWPVa0xmkMJhGuCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:38.035685Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1552","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa484e32fc41dbf214b30266ab92917575a45101eea36d5f8556f5b52e8a60fa","sha256:ab311ca0706b60867c2092cd47bc5e4307e31c420c5561219e30b5154c774a73"],"state_sha256":"8fb156786c4886dd50aef4e7c7efe29728b6885e5004b2e4601d027e68af1f32"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tT9LAEJSQOPQj1j9+gY6tUK1F7pZ2ep7mmbFl7EUdTcYDmkUCsOeQhN3kuKi9Pg/n4Q3IdDJWyyJFmeq1OtgBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T10:23:10.807534Z","bundle_sha256":"a229b5234322bae9014923257a26416628ee14817af38ea8497bf0a5576d479b"}}