{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:FJEC36T4RUMDFDJ5JRQNNL46M4","short_pith_number":"pith:FJEC36T4","schema_version":"1.0","canonical_sha256":"2a482dfa7c8d18328d3d4c60d6af9e670531ed5affb4b52bc9bfea9cf517ab4a","source":{"kind":"arxiv","id":"1802.04234","version":1},"attestation_state":"computed","paper":{"title":"Reanalysis of nearby open clusters using Gaia DR1/TGAS and HSOY","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Anatoly E. Piskunov, Elena Schilbach, Nina V. Kharchenko, Sabine Reffert, Siegfried R\\\"oser, Steffi X. Yen","submitted_at":"2018-02-12T18:37:45Z","abstract_excerpt":"Open clusters have long been used to gain insights into the structure, composition, and evolution of the Galaxy. With the large amount of stellar data available for many clusters in the Gaia era, new techniques must be developed for analyzing open clusters, as visual inspection of cluster color-magnitude diagrams is no longer feasible. An automatic tool will be required to analyze large samples of open clusters. We seek to develop an automatic isochrone-fitting procedure to consistently determine cluster membership and the fundamental cluster parameters. Our cluster characterization pipeline f"},"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":"1802.04234","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-12T18:37:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"10b887d3032b072fe31a9ca3b2784afe0e478b4fa0a4e084454fc526940524a8","abstract_canon_sha256":"1f9c17d6dd3a84beb7647f4c8bb45846b60bf053b5cc315fef288990998153cb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:02.858546Z","signature_b64":"k+OdpKVLMP848xpB87/zGSMMHTgcPjJ+DmrwiTeGwU4MJdRopCW6m4Z719J7C3T4mm9jzmfEIEJLWSHVtEJbCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a482dfa7c8d18328d3d4c60d6af9e670531ed5affb4b52bc9bfea9cf517ab4a","last_reissued_at":"2026-05-18T00:10:02.857738Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:02.857738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reanalysis of nearby open clusters using Gaia DR1/TGAS and HSOY","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Anatoly E. Piskunov, Elena Schilbach, Nina V. Kharchenko, Sabine Reffert, Siegfried R\\\"oser, Steffi X. Yen","submitted_at":"2018-02-12T18:37:45Z","abstract_excerpt":"Open clusters have long been used to gain insights into the structure, composition, and evolution of the Galaxy. With the large amount of stellar data available for many clusters in the Gaia era, new techniques must be developed for analyzing open clusters, as visual inspection of cluster color-magnitude diagrams is no longer feasible. An automatic tool will be required to analyze large samples of open clusters. We seek to develop an automatic isochrone-fitting procedure to consistently determine cluster membership and the fundamental cluster parameters. Our cluster characterization pipeline f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04234","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":"1802.04234","created_at":"2026-05-18T00:10:02.857871+00:00"},{"alias_kind":"arxiv_version","alias_value":"1802.04234v1","created_at":"2026-05-18T00:10:02.857871+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04234","created_at":"2026-05-18T00:10:02.857871+00:00"},{"alias_kind":"pith_short_12","alias_value":"FJEC36T4RUMD","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_16","alias_value":"FJEC36T4RUMDFDJ5","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_8","alias_value":"FJEC36T4","created_at":"2026-05-18T12:32:22.470017+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/FJEC36T4RUMDFDJ5JRQNNL46M4","json":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4.json","graph_json":"https://pith.science/api/pith-number/FJEC36T4RUMDFDJ5JRQNNL46M4/graph.json","events_json":"https://pith.science/api/pith-number/FJEC36T4RUMDFDJ5JRQNNL46M4/events.json","paper":"https://pith.science/paper/FJEC36T4"},"agent_actions":{"view_html":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4","download_json":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4.json","view_paper":"https://pith.science/paper/FJEC36T4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1802.04234&json=true","fetch_graph":"https://pith.science/api/pith-number/FJEC36T4RUMDFDJ5JRQNNL46M4/graph.json","fetch_events":"https://pith.science/api/pith-number/FJEC36T4RUMDFDJ5JRQNNL46M4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4/action/storage_attestation","attest_author":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4/action/author_attestation","sign_citation":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4/action/citation_signature","submit_replication":"https://pith.science/pith/FJEC36T4RUMDFDJ5JRQNNL46M4/action/replication_record"}},"created_at":"2026-05-18T00:10:02.857871+00:00","updated_at":"2026-05-18T00:10:02.857871+00:00"}