{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:QCAIVZY2XT747INJNIJYBWP62T","short_pith_number":"pith:QCAIVZY2","schema_version":"1.0","canonical_sha256":"80808ae71abcffcfa1a96a1380d9fed4e63371ab96554bb4be680535d5343d7a","source":{"kind":"arxiv","id":"1503.04366","version":1},"attestation_state":"computed","paper":{"title":"X-ray Properties of Low-Mass Pre-Main Sequence Stars in the Orion Trapezium Cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Claude R. Canizares, David P. Huenemoerder, Moritz Guenther, Norbert S. Schulz, Paola Testa","submitted_at":"2015-03-15T00:33:34Z","abstract_excerpt":"The Chandra High Energy Transmission Gratings (HETG) Orion Legacy Project (HOLP) is the first comprehensive set of observations of a very young massive stellar cluster which provides high resolution X-ray spectra of very young stars over a wide mass range (0.7 - 2.3 Msun). In this paper, we focus on the six brightest X-ray sources with T Tauri stellar counterparts which are well-characterized at optical and infra-red wavelengths. All stars show column densities which are substantially smaller than expected from optical extinction indicating that the sources are located on the near side of the "},"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":"1503.04366","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-15T00:33:34Z","cross_cats_sorted":[],"title_canon_sha256":"2522f7d3ac5e525f8b7b7a6f9376c3b6b892c91af25cc181f9a7f297bda6e6be","abstract_canon_sha256":"2396621c277b4a8debeb1f61df8e07185fffc4ccd3953db756616c48f0d7e925"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:33:06.117149Z","signature_b64":"K9PGBTFsqGDD4CXAiUEIKK8jBVOYtXadhFrPV0BQDvjgm+spLxkQmDTH2xyWc3LXsY6svrEF+uSfwcTA7J3IDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80808ae71abcffcfa1a96a1380d9fed4e63371ab96554bb4be680535d5343d7a","last_reissued_at":"2026-05-18T01:33:06.116624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:33:06.116624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"X-ray Properties of Low-Mass Pre-Main Sequence Stars in the Orion Trapezium Cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Claude R. Canizares, David P. Huenemoerder, Moritz Guenther, Norbert S. Schulz, Paola Testa","submitted_at":"2015-03-15T00:33:34Z","abstract_excerpt":"The Chandra High Energy Transmission Gratings (HETG) Orion Legacy Project (HOLP) is the first comprehensive set of observations of a very young massive stellar cluster which provides high resolution X-ray spectra of very young stars over a wide mass range (0.7 - 2.3 Msun). In this paper, we focus on the six brightest X-ray sources with T Tauri stellar counterparts which are well-characterized at optical and infra-red wavelengths. All stars show column densities which are substantially smaller than expected from optical extinction indicating that the sources are located on the near side of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.04366","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":"1503.04366","created_at":"2026-05-18T01:33:06.116718+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.04366v1","created_at":"2026-05-18T01:33:06.116718+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.04366","created_at":"2026-05-18T01:33:06.116718+00:00"},{"alias_kind":"pith_short_12","alias_value":"QCAIVZY2XT74","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_16","alias_value":"QCAIVZY2XT747INJ","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_8","alias_value":"QCAIVZY2","created_at":"2026-05-18T12:29:37.295048+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/QCAIVZY2XT747INJNIJYBWP62T","json":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T.json","graph_json":"https://pith.science/api/pith-number/QCAIVZY2XT747INJNIJYBWP62T/graph.json","events_json":"https://pith.science/api/pith-number/QCAIVZY2XT747INJNIJYBWP62T/events.json","paper":"https://pith.science/paper/QCAIVZY2"},"agent_actions":{"view_html":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T","download_json":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T.json","view_paper":"https://pith.science/paper/QCAIVZY2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.04366&json=true","fetch_graph":"https://pith.science/api/pith-number/QCAIVZY2XT747INJNIJYBWP62T/graph.json","fetch_events":"https://pith.science/api/pith-number/QCAIVZY2XT747INJNIJYBWP62T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T/action/storage_attestation","attest_author":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T/action/author_attestation","sign_citation":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T/action/citation_signature","submit_replication":"https://pith.science/pith/QCAIVZY2XT747INJNIJYBWP62T/action/replication_record"}},"created_at":"2026-05-18T01:33:06.116718+00:00","updated_at":"2026-05-18T01:33:06.116718+00:00"}