{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:DYSXBLLPM3J2JFQBS757LKSYXX","short_pith_number":"pith:DYSXBLLP","canonical_record":{"source":{"id":"1403.4764","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-19T11:04:27Z","cross_cats_sorted":[],"title_canon_sha256":"067ca12b4c07dcef0243bbb270b529bb6858605c81da61bcb115680644f720f8","abstract_canon_sha256":"9f197b752ee762dbbc8c826deaef2f5dee66d6793c9cfa4725945fb67df9e62a"},"schema_version":"1.0"},"canonical_sha256":"1e2570ad6f66d3a4960197fbf5aa58bde450e19251a9648a6cdc0183b64cf10d","source":{"kind":"arxiv","id":"1403.4764","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4764","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4764v1","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4764","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"pith_short_12","alias_value":"DYSXBLLPM3J2","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DYSXBLLPM3J2JFQB","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DYSXBLLP","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:DYSXBLLPM3J2JFQBS757LKSYXX","target":"record","payload":{"canonical_record":{"source":{"id":"1403.4764","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-19T11:04:27Z","cross_cats_sorted":[],"title_canon_sha256":"067ca12b4c07dcef0243bbb270b529bb6858605c81da61bcb115680644f720f8","abstract_canon_sha256":"9f197b752ee762dbbc8c826deaef2f5dee66d6793c9cfa4725945fb67df9e62a"},"schema_version":"1.0"},"canonical_sha256":"1e2570ad6f66d3a4960197fbf5aa58bde450e19251a9648a6cdc0183b64cf10d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:59.406934Z","signature_b64":"ePruO8rKZDEyvQoFpc5C+iclczOcRrjEKnCSvVd1/xiBcOG0NMufHDnqcqIyA27yTwtypbTnvEkiWmhrHGeiBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e2570ad6f66d3a4960197fbf5aa58bde450e19251a9648a6cdc0183b64cf10d","last_reissued_at":"2026-05-18T01:43:59.406259Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:59.406259Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.4764","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":"2026-05-18T01:43:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5S94lQav26QXjzRJZUkvrf+VFX5bVNpIoq84EEXHVhsx/Np2BzbuvnBK1Rldl/9kRcq3OUhHSonOxwXsQjSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:45:24.448780Z"},"content_sha256":"b0758e5682aa319e7ed89afb4df88d9fb5e891b4ecdafc79240e710088ae893c","schema_version":"1.0","event_id":"sha256:b0758e5682aa319e7ed89afb4df88d9fb5e891b4ecdafc79240e710088ae893c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:DYSXBLLPM3J2JFQBS757LKSYXX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HD 54272, a classical lambda Bootis star and gamma Doradus pulsator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Smalley, D.L. Holdsworth, E. Paunzen, M. Skarka, R. G. West","submitted_at":"2014-03-19T11:04:27Z","abstract_excerpt":"We detect the second known lambda Bootis star (HD 54272) which exhibits gamma Doradus-type pulsations. The star was formerly misidentified as a RR Lyrae variable. The lambda Bootis stars are a small group (only 2 per cent) of late B to early F-type, Population I stars which show moderate to extreme (up to a factor 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O, and S). The photometric data from the Wide Angle Search for Planets (WASP) and All Sky Automated Survey (ASAS) projects were analysed. They have an overlapping time base of 1566 d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4764","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":"2026-05-18T01:43:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rGKAX8Rux5JhM61nIrkOL7e5h78UiOpZx9z4vKRPpKvwT3frtZzjTq84dKdtfG4UNNtoCITk3dzvnc5xuBF4BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:45:24.449507Z"},"content_sha256":"fde14865b105697fb1a6a364c476b5ad6e8c0a7c3ee8ec0e129a5af1b402200b","schema_version":"1.0","event_id":"sha256:fde14865b105697fb1a6a364c476b5ad6e8c0a7c3ee8ec0e129a5af1b402200b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DYSXBLLPM3J2JFQBS757LKSYXX/bundle.json","state_url":"https://pith.science/pith/DYSXBLLPM3J2JFQBS757LKSYXX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DYSXBLLPM3J2JFQBS757LKSYXX/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":"2026-05-25T20:45:24Z","links":{"resolver":"https://pith.science/pith/DYSXBLLPM3J2JFQBS757LKSYXX","bundle":"https://pith.science/pith/DYSXBLLPM3J2JFQBS757LKSYXX/bundle.json","state":"https://pith.science/pith/DYSXBLLPM3J2JFQBS757LKSYXX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DYSXBLLPM3J2JFQBS757LKSYXX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DYSXBLLPM3J2JFQBS757LKSYXX","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":"9f197b752ee762dbbc8c826deaef2f5dee66d6793c9cfa4725945fb67df9e62a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-19T11:04:27Z","title_canon_sha256":"067ca12b4c07dcef0243bbb270b529bb6858605c81da61bcb115680644f720f8"},"schema_version":"1.0","source":{"id":"1403.4764","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4764","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4764v1","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4764","created_at":"2026-05-18T01:43:59Z"},{"alias_kind":"pith_short_12","alias_value":"DYSXBLLPM3J2","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DYSXBLLPM3J2JFQB","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DYSXBLLP","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:fde14865b105697fb1a6a364c476b5ad6e8c0a7c3ee8ec0e129a5af1b402200b","target":"graph","created_at":"2026-05-18T01:43:59Z","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":"We detect the second known lambda Bootis star (HD 54272) which exhibits gamma Doradus-type pulsations. The star was formerly misidentified as a RR Lyrae variable. The lambda Bootis stars are a small group (only 2 per cent) of late B to early F-type, Population I stars which show moderate to extreme (up to a factor 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O, and S). The photometric data from the Wide Angle Search for Planets (WASP) and All Sky Automated Survey (ASAS) projects were analysed. They have an overlapping time base of 1566 d","authors_text":"B. Smalley, D.L. Holdsworth, E. Paunzen, M. Skarka, R. G. West","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-19T11:04:27Z","title":"HD 54272, a classical lambda Bootis star and gamma Doradus pulsator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4764","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:b0758e5682aa319e7ed89afb4df88d9fb5e891b4ecdafc79240e710088ae893c","target":"record","created_at":"2026-05-18T01:43:59Z","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":"9f197b752ee762dbbc8c826deaef2f5dee66d6793c9cfa4725945fb67df9e62a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-19T11:04:27Z","title_canon_sha256":"067ca12b4c07dcef0243bbb270b529bb6858605c81da61bcb115680644f720f8"},"schema_version":"1.0","source":{"id":"1403.4764","kind":"arxiv","version":1}},"canonical_sha256":"1e2570ad6f66d3a4960197fbf5aa58bde450e19251a9648a6cdc0183b64cf10d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e2570ad6f66d3a4960197fbf5aa58bde450e19251a9648a6cdc0183b64cf10d","first_computed_at":"2026-05-18T01:43:59.406259Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:59.406259Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ePruO8rKZDEyvQoFpc5C+iclczOcRrjEKnCSvVd1/xiBcOG0NMufHDnqcqIyA27yTwtypbTnvEkiWmhrHGeiBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:59.406934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4764","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0758e5682aa319e7ed89afb4df88d9fb5e891b4ecdafc79240e710088ae893c","sha256:fde14865b105697fb1a6a364c476b5ad6e8c0a7c3ee8ec0e129a5af1b402200b"],"state_sha256":"4688c9b67ad6e767d7f276d013baae6e5d88233029eedfe9d036786fadc3fcee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJdNKd+eLA/XEUHf3O1FGXXz0JD9hK2SDHU7eZNaybT2yMq08nD36FmuCtkliYXJDttcw+DuP6dzYjDxS0k4Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:45:24.453432Z","bundle_sha256":"a5ad49adf488f49acaac51baa28b58e47dc40eaeb60a9c2b3e482f2f9b55ded0"}}