{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:DRDETYXK7QSY5QB3R3JN5IAKRX","short_pith_number":"pith:DRDETYXK","schema_version":"1.0","canonical_sha256":"1c4649e2eafc258ec03b8ed2dea00a8df344f17f3f4281551dfc7a50fe55c112","source":{"kind":"arxiv","id":"astro-ph/0207428","version":1},"attestation_state":"computed","paper":{"title":"The optical counterpart of the ultra-luminous x-ray source NGC 5204 X-1","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) University of Leicester, (3) Universidad de Chile), C. Knigge (1), M.R. Goad (1), P. Lira (3) ((1) University of Southampton, T.P. Roberts (2)","submitted_at":"2002-07-19T16:23:03Z","abstract_excerpt":"We use archival HST/WFPC2 V and I band images to show that the optical counterpart to the ultra-luminous x-ray source NGC 5204 X-1, reported by Roberts et al., is composed of two sources separated by 0.5''. We have also identified a third source as a possible counterpart, which lies 0.8'' from the nominal x-ray position. PSF fitting photometry yields V-band magnitudes of 20.3, 22.0 and 22.4 for the three sources. The V-I band colours are 0.6, 0.1, and -0.2, respectively (i.e. the fainter sources are bluer). We find that all V-I colours and luminosities are consistent with those expected for yo"},"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/0207428","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-19T16:23:03Z","cross_cats_sorted":[],"title_canon_sha256":"295956a8146d54c5798fc9b646a9b839468cb7ad361e57bbbaef61f23b85a777","abstract_canon_sha256":"5de2fc8f42bf837e975183624d8e6263434fcd14069bfb095cffd2d1dccbc445"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:24.393587Z","signature_b64":"hEzS5ibE7RaL2mdN6Cn1Yyn/RpwzYmiZ2JCK5T7lvraNM6aB/NSFmHo5Y++uKRblaeGzVgdFn31J+LqwKh2TCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c4649e2eafc258ec03b8ed2dea00a8df344f17f3f4281551dfc7a50fe55c112","last_reissued_at":"2026-07-04T16:30:24.393248Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:24.393248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The optical counterpart of the ultra-luminous x-ray source NGC 5204 X-1","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) University of Leicester, (3) Universidad de Chile), C. Knigge (1), M.R. Goad (1), P. Lira (3) ((1) University of Southampton, T.P. Roberts (2)","submitted_at":"2002-07-19T16:23:03Z","abstract_excerpt":"We use archival HST/WFPC2 V and I band images to show that the optical counterpart to the ultra-luminous x-ray source NGC 5204 X-1, reported by Roberts et al., is composed of two sources separated by 0.5''. We have also identified a third source as a possible counterpart, which lies 0.8'' from the nominal x-ray position. PSF fitting photometry yields V-band magnitudes of 20.3, 22.0 and 22.4 for the three sources. The V-I band colours are 0.6, 0.1, and -0.2, respectively (i.e. the fainter sources are bluer). We find that all V-I colours and luminosities are consistent with those expected for yo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0207428","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/0207428/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/0207428","created_at":"2026-07-04T16:30:24.393299+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0207428v1","created_at":"2026-07-04T16:30:24.393299+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0207428","created_at":"2026-07-04T16:30:24.393299+00:00"},{"alias_kind":"pith_short_12","alias_value":"DRDETYXK7QSY","created_at":"2026-07-04T16:30:24.393299+00:00"},{"alias_kind":"pith_short_16","alias_value":"DRDETYXK7QSY5QB3","created_at":"2026-07-04T16:30:24.393299+00:00"},{"alias_kind":"pith_short_8","alias_value":"DRDETYXK","created_at":"2026-07-04T16:30:24.393299+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/DRDETYXK7QSY5QB3R3JN5IAKRX","json":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX.json","graph_json":"https://pith.science/api/pith-number/DRDETYXK7QSY5QB3R3JN5IAKRX/graph.json","events_json":"https://pith.science/api/pith-number/DRDETYXK7QSY5QB3R3JN5IAKRX/events.json","paper":"https://pith.science/paper/DRDETYXK"},"agent_actions":{"view_html":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX","download_json":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX.json","view_paper":"https://pith.science/paper/DRDETYXK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0207428&json=true","fetch_graph":"https://pith.science/api/pith-number/DRDETYXK7QSY5QB3R3JN5IAKRX/graph.json","fetch_events":"https://pith.science/api/pith-number/DRDETYXK7QSY5QB3R3JN5IAKRX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX/action/storage_attestation","attest_author":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX/action/author_attestation","sign_citation":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX/action/citation_signature","submit_replication":"https://pith.science/pith/DRDETYXK7QSY5QB3R3JN5IAKRX/action/replication_record"}},"created_at":"2026-07-04T16:30:24.393299+00:00","updated_at":"2026-07-04T16:30:24.393299+00:00"}