{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:74YF6DDHXTU7TNVSNTV5QO7NUM","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0a6e8eaf4ded2c3071899ebb1e8781b20e9dd285773a257486be2d4a43c21401","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-07T10:08:35Z","title_canon_sha256":"79ade5e3297889137ce67639a3b11c78765a11d6176a41cd80a44bd07e0de89f"},"schema_version":"1.0","source":{"id":"1805.02427","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02427","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02427v3","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02427","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"74YF6DDHXTU7","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"74YF6DDHXTU7TNVS","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"74YF6DDH","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:25d2b88d6bdb62b2cf04c34201508fd3cb0a6cef797e04ec9b3f1fa515e11d94","target":"graph","created_at":"2026-05-18T00:02:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We perform a comparison of different approaches to star-galaxy classification using the broad-band photometric data from Year 1 of the Dark Energy Survey. This is done by performing a wide range of tests with and without external `truth' information, which can be ported to other similar datasets. We make a broad evaluation of the performance of the classifiers in two science cases with DES data that are most affected by this systematic effect: large-scale structure and Milky Way studies. In general, even though the default morphological classifiers used for DES Y1 cosmology studies are suffici","authors_text":"A. A. Plazas, A. Carnero-Rosell, A. Choi, A. Drlica-Wagner, A. J. Ross, A. R. Walker, B. Flaugher, B. Hoyle, B. Moraes, B. Nord, B. Santiago, B. Yanny, C. Avestruz, C. Bonnett, C. Cunha, C. Davis, D. Brooks, D. Gruen, D. James, D. Kirk, D. L. Hollowood, D. L. Tucker, D. Thomas, E. Balbinot, E. Bertin, E. Fernandez, E. Gaztanaga, E. Kim, E. Krause, E. Sanchez, E. Sheldon, E. S. Rykoff, E. Suchyta, F. Abdalla, F. Menanteau, F. Sobreira, G. Gutierrez, G. Tarle, I. Sevilla-Noarbe, J. Aleksi\\'c, J. Carretero, J. De Vicente, J. Frieman, J. Garcia-Bellido, J. Gschwend, K. Bechtol, K. Honscheid, K. Kuehn, K. Wei, L. da Costa, M. A. G. Maia, M. Banerji, M. Carrasco-Kind, M. E. C. Swanson, M. J. March\\~a, M. Lima, M. March, M. Schubnell, M. Smith, M. Soares-Santos, M. T. Soumagnac, O. Lahav, P. Doel, R. Brunner, R. C. Smith, R. G. McMahon, R. Gruendl, R. L. C. Ogando, R. Miquel, R. Schindler, S. Allam, S. Desai, T. Abbott, T. Giannantonio, T. Jeltema, T. S. Li, V. Scarpine, W. Wester","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-07T10:08:35Z","title":"Star-galaxy classification in the Dark Energy Survey Y1 dataset"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02427","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6ebcecfba1ef72d9c3bc452d382aad39b546a347880c3c5ce4280fc284bce4d6","target":"record","created_at":"2026-05-18T00:02:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0a6e8eaf4ded2c3071899ebb1e8781b20e9dd285773a257486be2d4a43c21401","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-07T10:08:35Z","title_canon_sha256":"79ade5e3297889137ce67639a3b11c78765a11d6176a41cd80a44bd07e0de89f"},"schema_version":"1.0","source":{"id":"1805.02427","kind":"arxiv","version":3}},"canonical_sha256":"ff305f0c67bce9f9b6b26cebd83beda32f7f392ffe56b9bf2f74743df61f0e74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff305f0c67bce9f9b6b26cebd83beda32f7f392ffe56b9bf2f74743df61f0e74","first_computed_at":"2026-05-18T00:02:01.152361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:01.152361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xe9hNo7EV4BLePrjcMAuTirSjGm2kP8Mu9fBOoADkf9YMALDP56Tr6WLY3X+TEn0biAhO0s7+ri5cE9da/4pAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:01.152932Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.02427","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ebcecfba1ef72d9c3bc452d382aad39b546a347880c3c5ce4280fc284bce4d6","sha256:25d2b88d6bdb62b2cf04c34201508fd3cb0a6cef797e04ec9b3f1fa515e11d94"],"state_sha256":"6c90aeab07f752a997fa87de652ffd366a77192fe69a0a791f49e2886536fbad"}