{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:WNMVGTNDSO62C4OTSPYM5KEJ2Z","short_pith_number":"pith:WNMVGTND","schema_version":"1.0","canonical_sha256":"b359534da393bda171d393f0cea889d6436d8532a90b002a7de0e0ed0c1da158","source":{"kind":"arxiv","id":"astro-ph/0608704","version":1},"attestation_state":"computed","paper":{"title":"K-band spectroscopy of deeply embedded, young OB stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bik (ESO, Garching), L.B.F.M. Waters (Amsterdam, Leuven), L. Kaper (Amsterdam), M.M. Hanson (Cincinnati)","submitted_at":"2006-08-31T15:55:38Z","abstract_excerpt":"We have obtained high resolution (R = 10,000) K-band spectra of candidate young massive stars deeply embedded in high-mass star-forming regions. These objects were selected from a near-infrared survey of 44 regions of high-mass star-formation (Kaper et al, 2006). In these clusters, 38 OB stars are identified whose K-band spectra are dominated by photospheric emission. In almost all those stars, the K-band spectra are indistinguishable from field stars. However, in some stars the profile of the Bracket gamma line is different (less deep, or absent) from those of the O field stars. One of the ex"},"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":"astro-ph/0608704","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-31T15:55:38Z","cross_cats_sorted":[],"title_canon_sha256":"87067c7d197f29c65a0430f965f395acc9749d79480a9756c81b4c2591e57863","abstract_canon_sha256":"5591030afbdb7ce510383893ab60990e68fee67ea8f160a2b1581575127c625e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:55:51.555037Z","signature_b64":"IPIrr/GWN/LVe0tw8wsxrqfLcOt98BSGmPaiq+2km27GiHbXXZniiKbKTb/yDhE1W2csfkiX5P39xEYxmTpXDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b359534da393bda171d393f0cea889d6436d8532a90b002a7de0e0ed0c1da158","last_reissued_at":"2026-07-04T14:55:51.554616Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:55:51.554616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"K-band spectroscopy of deeply embedded, young OB stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bik (ESO, Garching), L.B.F.M. Waters (Amsterdam, Leuven), L. Kaper (Amsterdam), M.M. Hanson (Cincinnati)","submitted_at":"2006-08-31T15:55:38Z","abstract_excerpt":"We have obtained high resolution (R = 10,000) K-band spectra of candidate young massive stars deeply embedded in high-mass star-forming regions. These objects were selected from a near-infrared survey of 44 regions of high-mass star-formation (Kaper et al, 2006). In these clusters, 38 OB stars are identified whose K-band spectra are dominated by photospheric emission. In almost all those stars, the K-band spectra are indistinguishable from field stars. However, in some stars the profile of the Bracket gamma line is different (less deep, or absent) from those of the O field stars. One of the ex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0608704","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0608704/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/0608704","created_at":"2026-07-04T14:55:51.554681+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0608704v1","created_at":"2026-07-04T14:55:51.554681+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0608704","created_at":"2026-07-04T14:55:51.554681+00:00"},{"alias_kind":"pith_short_12","alias_value":"WNMVGTNDSO62","created_at":"2026-07-04T14:55:51.554681+00:00"},{"alias_kind":"pith_short_16","alias_value":"WNMVGTNDSO62C4OT","created_at":"2026-07-04T14:55:51.554681+00:00"},{"alias_kind":"pith_short_8","alias_value":"WNMVGTND","created_at":"2026-07-04T14:55:51.554681+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/WNMVGTNDSO62C4OTSPYM5KEJ2Z","json":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z.json","graph_json":"https://pith.science/api/pith-number/WNMVGTNDSO62C4OTSPYM5KEJ2Z/graph.json","events_json":"https://pith.science/api/pith-number/WNMVGTNDSO62C4OTSPYM5KEJ2Z/events.json","paper":"https://pith.science/paper/WNMVGTND"},"agent_actions":{"view_html":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z","download_json":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z.json","view_paper":"https://pith.science/paper/WNMVGTND","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0608704&json=true","fetch_graph":"https://pith.science/api/pith-number/WNMVGTNDSO62C4OTSPYM5KEJ2Z/graph.json","fetch_events":"https://pith.science/api/pith-number/WNMVGTNDSO62C4OTSPYM5KEJ2Z/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z/action/storage_attestation","attest_author":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z/action/author_attestation","sign_citation":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z/action/citation_signature","submit_replication":"https://pith.science/pith/WNMVGTNDSO62C4OTSPYM5KEJ2Z/action/replication_record"}},"created_at":"2026-07-04T14:55:51.554681+00:00","updated_at":"2026-07-04T14:55:51.554681+00:00"}