{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:VKSNIQZKPRCN3URWIJFLKL2OGM","short_pith_number":"pith:VKSNIQZK","schema_version":"1.0","canonical_sha256":"aaa4d4432a7c44ddd236424ab52f4e3303a58c98d9c02c8c449e0954debbdaf9","source":{"kind":"arxiv","id":"1710.00823","version":2},"attestation_state":"computed","paper":{"title":"Explaining the luminosity spread in young clusters: proto and pre-main sequence stellar evolution in a molecular cloud environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Sigurd S. Jensen, Troels Haugb{\\o}lle","submitted_at":"2017-10-02T18:00:01Z","abstract_excerpt":"Hertzsprung-Russell diagrams of star forming regions show a large luminosity spread. This is incompatible with well-defined isochrones based on classic non-accreting protostellar evo- lution models. Protostars do not evolve in isolation of their environment, but grow through accretion of gas. In addition, while an age can be defined for a star forming region, the ages of individual stars in the region will vary. We show how the combined effect of a protostellar age spread, a consequence of sustained star formation in the molecular cloud, and time-varying protostellar accretion for individual p"},"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":"1710.00823","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-10-02T18:00:01Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"a188fcc93e9b72972742d5ca0059b962cd4f41d2b7ee9505b784b3f9f0b8755c","abstract_canon_sha256":"18aed9a1e0df14635e31a8939ce8276b04b18f585a756f239bf179ea143908da"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:42.326853Z","signature_b64":"9hnkmsUQ0mIOU7RX3iuM/oHRD/7Nk73ldFOpev3TKpEPpHxrP77CS4bdqp7q27qDNpLU0BR11sK9zDaaR76yBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aaa4d4432a7c44ddd236424ab52f4e3303a58c98d9c02c8c449e0954debbdaf9","last_reissued_at":"2026-05-18T00:24:42.326114Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:42.326114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Explaining the luminosity spread in young clusters: proto and pre-main sequence stellar evolution in a molecular cloud environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Sigurd S. Jensen, Troels Haugb{\\o}lle","submitted_at":"2017-10-02T18:00:01Z","abstract_excerpt":"Hertzsprung-Russell diagrams of star forming regions show a large luminosity spread. This is incompatible with well-defined isochrones based on classic non-accreting protostellar evo- lution models. Protostars do not evolve in isolation of their environment, but grow through accretion of gas. In addition, while an age can be defined for a star forming region, the ages of individual stars in the region will vary. We show how the combined effect of a protostellar age spread, a consequence of sustained star formation in the molecular cloud, and time-varying protostellar accretion for individual p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.00823","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1710.00823","created_at":"2026-05-18T00:24:42.326217+00:00"},{"alias_kind":"arxiv_version","alias_value":"1710.00823v2","created_at":"2026-05-18T00:24:42.326217+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.00823","created_at":"2026-05-18T00:24:42.326217+00:00"},{"alias_kind":"pith_short_12","alias_value":"VKSNIQZKPRCN","created_at":"2026-05-18T12:31:49.984773+00:00"},{"alias_kind":"pith_short_16","alias_value":"VKSNIQZKPRCN3URW","created_at":"2026-05-18T12:31:49.984773+00:00"},{"alias_kind":"pith_short_8","alias_value":"VKSNIQZK","created_at":"2026-05-18T12:31:49.984773+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/VKSNIQZKPRCN3URWIJFLKL2OGM","json":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM.json","graph_json":"https://pith.science/api/pith-number/VKSNIQZKPRCN3URWIJFLKL2OGM/graph.json","events_json":"https://pith.science/api/pith-number/VKSNIQZKPRCN3URWIJFLKL2OGM/events.json","paper":"https://pith.science/paper/VKSNIQZK"},"agent_actions":{"view_html":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM","download_json":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM.json","view_paper":"https://pith.science/paper/VKSNIQZK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1710.00823&json=true","fetch_graph":"https://pith.science/api/pith-number/VKSNIQZKPRCN3URWIJFLKL2OGM/graph.json","fetch_events":"https://pith.science/api/pith-number/VKSNIQZKPRCN3URWIJFLKL2OGM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM/action/storage_attestation","attest_author":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM/action/author_attestation","sign_citation":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM/action/citation_signature","submit_replication":"https://pith.science/pith/VKSNIQZKPRCN3URWIJFLKL2OGM/action/replication_record"}},"created_at":"2026-05-18T00:24:42.326217+00:00","updated_at":"2026-05-18T00:24:42.326217+00:00"}