{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:ECSU7QIC42BSP2CXMV6HE4KT2G","short_pith_number":"pith:ECSU7QIC","schema_version":"1.0","canonical_sha256":"20a54fc102e68327e857657c727153d18ae3d880dc75d897480944e83ce6e489","source":{"kind":"arxiv","id":"1905.09020","version":1},"attestation_state":"computed","paper":{"title":"Optical Counterparts of an Ultraluminous X-Ray Source X-1 in NGC 2500","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A. Aky\\\"uz, H. Avdan, N. Aksaker, S. Avdan","submitted_at":"2019-05-22T08:43:20Z","abstract_excerpt":"We present the results of a search for optical counterparts of ultraluminous X-ray source (ULX) X-1 in the nearby galaxy NGC 2500 by using archival images taken with the Hubble Space Telescope ({\\it HST}) Wide Field Camera (WFC3)/UVIS. Four optical sources have been identified as possible counterparts within the 2$\\sigma$ error radius of 0.3 arcsec in the images. However, only two of them were investigated as candidates for counterparts due to their point-like features and their identification in various filters. These two faint candidates have absolute magnitudes of $M_{\\rm V}$ $\\approx$ -3.4"},"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":"1905.09020","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-22T08:43:20Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"11009698e98ac9a2a0bfbb7ea96a1f8c4f5bae0e469424a84c56497512d4ab34","abstract_canon_sha256":"73801418a10feca5bb1cf8920845b5524b9d6052e5030bbb0cfb59bfc7c348b6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:42.338852Z","signature_b64":"T16oG/5XfIc/FU1/ewuxr9djvtYSLgZUcUJH9m4nBVO4JSUYvmftoMpaFKEnykRpndCQKh4Zbw8Z2bO2SXibBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"20a54fc102e68327e857657c727153d18ae3d880dc75d897480944e83ce6e489","last_reissued_at":"2026-07-04T23:55:42.338345Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:42.338345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical Counterparts of an Ultraluminous X-Ray Source X-1 in NGC 2500","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A. Aky\\\"uz, H. Avdan, N. Aksaker, S. Avdan","submitted_at":"2019-05-22T08:43:20Z","abstract_excerpt":"We present the results of a search for optical counterparts of ultraluminous X-ray source (ULX) X-1 in the nearby galaxy NGC 2500 by using archival images taken with the Hubble Space Telescope ({\\it HST}) Wide Field Camera (WFC3)/UVIS. Four optical sources have been identified as possible counterparts within the 2$\\sigma$ error radius of 0.3 arcsec in the images. However, only two of them were investigated as candidates for counterparts due to their point-like features and their identification in various filters. These two faint candidates have absolute magnitudes of $M_{\\rm V}$ $\\approx$ -3.4"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09020","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/1905.09020/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":"1905.09020","created_at":"2026-07-04T23:55:42.338405+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.09020v1","created_at":"2026-07-04T23:55:42.338405+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09020","created_at":"2026-07-04T23:55:42.338405+00:00"},{"alias_kind":"pith_short_12","alias_value":"ECSU7QIC42BS","created_at":"2026-07-04T23:55:42.338405+00:00"},{"alias_kind":"pith_short_16","alias_value":"ECSU7QIC42BSP2CX","created_at":"2026-07-04T23:55:42.338405+00:00"},{"alias_kind":"pith_short_8","alias_value":"ECSU7QIC","created_at":"2026-07-04T23:55:42.338405+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/ECSU7QIC42BSP2CXMV6HE4KT2G","json":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G.json","graph_json":"https://pith.science/api/pith-number/ECSU7QIC42BSP2CXMV6HE4KT2G/graph.json","events_json":"https://pith.science/api/pith-number/ECSU7QIC42BSP2CXMV6HE4KT2G/events.json","paper":"https://pith.science/paper/ECSU7QIC"},"agent_actions":{"view_html":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G","download_json":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G.json","view_paper":"https://pith.science/paper/ECSU7QIC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.09020&json=true","fetch_graph":"https://pith.science/api/pith-number/ECSU7QIC42BSP2CXMV6HE4KT2G/graph.json","fetch_events":"https://pith.science/api/pith-number/ECSU7QIC42BSP2CXMV6HE4KT2G/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G/action/storage_attestation","attest_author":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G/action/author_attestation","sign_citation":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G/action/citation_signature","submit_replication":"https://pith.science/pith/ECSU7QIC42BSP2CXMV6HE4KT2G/action/replication_record"}},"created_at":"2026-07-04T23:55:42.338405+00:00","updated_at":"2026-07-04T23:55:42.338405+00:00"}