{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:IV57AZSD7YECHQ3D7UDR42OQE5","short_pith_number":"pith:IV57AZSD","schema_version":"1.0","canonical_sha256":"457bf06643fe0823c363fd071e69d0275235b3aabe0c91ddf5034e174ea5132f","source":{"kind":"arxiv","id":"1707.03656","version":1},"attestation_state":"computed","paper":{"title":"A search for peculiar stars in the open cluster Hogg 16","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ernst Paunzen, L\\'ydia \\v{S}tofanov\\'a, Martin Netopil, Naira M. Azatyan, Olga I. Pintado, Petr Kurf\\\"urst, Stefano Cariddi, Yael J. Aidelman","submitted_at":"2017-07-12T11:32:59Z","abstract_excerpt":"The study of chemically peculiar (CP) stars in open clusters provides valuable information about their evolutionary status. Their detection can be performed using the $\\Delta a$ photometric system, which maps a characteristic flux depression at $\\lambda \\sim 5200$ \\AA. This paper aims at studying the occurrence of CP stars in the earliest stages of evolution of a stellar population by applying this technique to Hogg 16, a very young Galactic open cluster (about 25 Myr). We identified several peculiar candidates: two B-type stars with a negative $\\Delta a$ index (CD-60 4701, CPD-60 4706) are li"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1707.03656","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-12T11:32:59Z","cross_cats_sorted":[],"title_canon_sha256":"ac78d47912b1b3af26494e61c7c879fa038ce3e22575b93b308f795c8cbf7b44","abstract_canon_sha256":"d4e22b3c61f16a5f50a2d06f439802a723bf1b8556752e3e3cccf08661a9de63"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:25.382423Z","signature_b64":"0903ASubxmDol8tvwo8hJf4s+9duo8USI8btVrfyY9NOZbLu8XyZ1DJVW3BMUaEfeXzsAO2GamHc51bPw/nwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"457bf06643fe0823c363fd071e69d0275235b3aabe0c91ddf5034e174ea5132f","last_reissued_at":"2026-05-18T00:40:25.381912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:25.381912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A search for peculiar stars in the open cluster Hogg 16","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ernst Paunzen, L\\'ydia \\v{S}tofanov\\'a, Martin Netopil, Naira M. Azatyan, Olga I. Pintado, Petr Kurf\\\"urst, Stefano Cariddi, Yael J. Aidelman","submitted_at":"2017-07-12T11:32:59Z","abstract_excerpt":"The study of chemically peculiar (CP) stars in open clusters provides valuable information about their evolutionary status. Their detection can be performed using the $\\Delta a$ photometric system, which maps a characteristic flux depression at $\\lambda \\sim 5200$ \\AA. This paper aims at studying the occurrence of CP stars in the earliest stages of evolution of a stellar population by applying this technique to Hogg 16, a very young Galactic open cluster (about 25 Myr). We identified several peculiar candidates: two B-type stars with a negative $\\Delta a$ index (CD-60 4701, CPD-60 4706) are li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03656","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1707.03656","created_at":"2026-05-18T00:40:25.381985+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.03656v1","created_at":"2026-05-18T00:40:25.381985+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03656","created_at":"2026-05-18T00:40:25.381985+00:00"},{"alias_kind":"pith_short_12","alias_value":"IV57AZSD7YEC","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_16","alias_value":"IV57AZSD7YECHQ3D","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_8","alias_value":"IV57AZSD","created_at":"2026-05-18T12:31:21.493067+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5","json":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5.json","graph_json":"https://pith.science/api/pith-number/IV57AZSD7YECHQ3D7UDR42OQE5/graph.json","events_json":"https://pith.science/api/pith-number/IV57AZSD7YECHQ3D7UDR42OQE5/events.json","paper":"https://pith.science/paper/IV57AZSD"},"agent_actions":{"view_html":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5","download_json":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5.json","view_paper":"https://pith.science/paper/IV57AZSD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.03656&json=true","fetch_graph":"https://pith.science/api/pith-number/IV57AZSD7YECHQ3D7UDR42OQE5/graph.json","fetch_events":"https://pith.science/api/pith-number/IV57AZSD7YECHQ3D7UDR42OQE5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5/action/storage_attestation","attest_author":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5/action/author_attestation","sign_citation":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5/action/citation_signature","submit_replication":"https://pith.science/pith/IV57AZSD7YECHQ3D7UDR42OQE5/action/replication_record"}},"created_at":"2026-05-18T00:40:25.381985+00:00","updated_at":"2026-05-18T00:40:25.381985+00:00"}