{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:QPTDBMKEUCPECSWX4J3JWUVJZO","short_pith_number":"pith:QPTDBMKE","schema_version":"1.0","canonical_sha256":"83e630b144a09e414ad7e2769b52a9cbb977ae56ff22c438911632cd1be9beef","source":{"kind":"arxiv","id":"2604.13711","version":2},"attestation_state":"computed","paper":{"title":"JWST spectroscopy of SN 2010da/NGC 300 ULX-1: a surviving star hidden by dust","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"The donor star in SN 2010da has survived its outburst and returned to a heavily dust-obscured state.","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ben Davies, Dominic J. Walton, Emma R. Beasor, Marianne Heida, Nathan Smith, Ryan Lau","submitted_at":"2026-04-15T10:41:05Z","abstract_excerpt":"We present new James Webb Space Telescope ($JWST$) NIRSpec and MIRI integral-field spectroscopy of the remarkable system SN~2010da / NGC~300 ULX-1, the only known ultraluminous X-ray source powered by a neutron star with a supergiant donor. Our new data, taken in November 2024, reveal that the optical and near-infrared counterpart has dramatically faded since 2018 and no longer exhibits molecular absorption features characteristic of a red supergiant. Instead, the spectral energy distribution shows the donor has returned to its pre-outburst appearance, and is dominated by infrared continuum co"},"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":"2604.13711","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-15T10:41:05Z","cross_cats_sorted":[],"title_canon_sha256":"0dc74dd94a8be632b929525088b96f4568b049d9220c59a5997585fc23938b90","abstract_canon_sha256":"e9cee345d5499d7440ecdc026676fa3bd199ec85ccdf9cbad0d049c463a6c420"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T01:05:50.398175Z","signature_b64":"52irxfp4XnWUFQryi/f1hE4qJYs3G1GI4nngt0w61Hm0aNYjkUTbprZF8vNRVcARgSeSulDEF+H5Xj/bBr0dBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83e630b144a09e414ad7e2769b52a9cbb977ae56ff22c438911632cd1be9beef","last_reissued_at":"2026-06-03T01:05:50.397698Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T01:05:50.397698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"JWST spectroscopy of SN 2010da/NGC 300 ULX-1: a surviving star hidden by dust","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"The donor star in SN 2010da has survived its outburst and returned to a heavily dust-obscured state.","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ben Davies, Dominic J. Walton, Emma R. Beasor, Marianne Heida, Nathan Smith, Ryan Lau","submitted_at":"2026-04-15T10:41:05Z","abstract_excerpt":"We present new James Webb Space Telescope ($JWST$) NIRSpec and MIRI integral-field spectroscopy of the remarkable system SN~2010da / NGC~300 ULX-1, the only known ultraluminous X-ray source powered by a neutron star with a supergiant donor. Our new data, taken in November 2024, reveal that the optical and near-infrared counterpart has dramatically faded since 2018 and no longer exhibits molecular absorption features characteristic of a red supergiant. Instead, the spectral energy distribution shows the donor has returned to its pre-outburst appearance, and is dominated by infrared continuum co"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We conclude that the donor star is likely an AGB star that has survived and is now heavily enshrouded - having returned to a dust-obscured state following a transient post-outburst phase in which the system appeared as a red supergiant.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the radiative transfer modeling of the mid-IR SED uniquely identifies silicon carbide dust and that the measured bolometric luminosity of log(L/Lsun)=4.11 definitively indicates a surviving star rather than residual emission from other components or a failed supernova remnant.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"The donor star survived the 2010 outburst, returned to a dust-obscured AGB state, and is no longer visible as a red supergiant.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The donor star in SN 2010da has survived its outburst and returned to a heavily dust-obscured state.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"03eb30efd4ddd727fdd31f2362f9c4a2605b855c1cfb8169b253ab06ed85e745"},"source":{"id":"2604.13711","kind":"arxiv","version":2},"verdict":{"id":"69211151-f26a-4456-b974-ab1e224d4caa","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T12:50:13.732817Z","strongest_claim":"We conclude that the donor star is likely an AGB star that has survived and is now heavily enshrouded - having returned to a dust-obscured state following a transient post-outburst phase in which the system appeared as a red supergiant.","one_line_summary":"The donor star survived the 2010 outburst, returned to a dust-obscured AGB state, and is no longer visible as a red supergiant.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the radiative transfer modeling of the mid-IR SED uniquely identifies silicon carbide dust and that the measured bolometric luminosity of log(L/Lsun)=4.11 definitively indicates a surviving star rather than residual emission from other components or a failed supernova remnant.","pith_extraction_headline":"The donor star in SN 2010da has survived its outburst and returned to a heavily dust-obscured state."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.13711/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":"2604.13711","created_at":"2026-06-03T01:05:50.397754+00:00"},{"alias_kind":"arxiv_version","alias_value":"2604.13711v2","created_at":"2026-06-03T01:05:50.397754+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.13711","created_at":"2026-06-03T01:05:50.397754+00:00"},{"alias_kind":"pith_short_12","alias_value":"QPTDBMKEUCPE","created_at":"2026-06-03T01:05:50.397754+00:00"},{"alias_kind":"pith_short_16","alias_value":"QPTDBMKEUCPECSWX","created_at":"2026-06-03T01:05:50.397754+00:00"},{"alias_kind":"pith_short_8","alias_value":"QPTDBMKE","created_at":"2026-06-03T01:05:50.397754+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/QPTDBMKEUCPECSWX4J3JWUVJZO","json":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO.json","graph_json":"https://pith.science/api/pith-number/QPTDBMKEUCPECSWX4J3JWUVJZO/graph.json","events_json":"https://pith.science/api/pith-number/QPTDBMKEUCPECSWX4J3JWUVJZO/events.json","paper":"https://pith.science/paper/QPTDBMKE"},"agent_actions":{"view_html":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO","download_json":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO.json","view_paper":"https://pith.science/paper/QPTDBMKE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2604.13711&json=true","fetch_graph":"https://pith.science/api/pith-number/QPTDBMKEUCPECSWX4J3JWUVJZO/graph.json","fetch_events":"https://pith.science/api/pith-number/QPTDBMKEUCPECSWX4J3JWUVJZO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO/action/storage_attestation","attest_author":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO/action/author_attestation","sign_citation":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO/action/citation_signature","submit_replication":"https://pith.science/pith/QPTDBMKEUCPECSWX4J3JWUVJZO/action/replication_record"}},"created_at":"2026-06-03T01:05:50.397754+00:00","updated_at":"2026-06-03T01:05:50.397754+00:00"}