{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:KXC7P7ZOPBLWBL7VULHQIR44F3","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":"941a3756f6071eff6c0d99b737ce2308f2d5e4a30e9cd35f7bd907943ff05947","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-15T14:00:00Z","title_canon_sha256":"9bfb30e89dbdc4cea2bc71bd329bc9c90f190c2df57986eb9cdd138e35085d07"},"schema_version":"1.0","source":{"id":"2109.07303","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.07303","created_at":"2026-07-05T04:09:37Z"},{"alias_kind":"arxiv_version","alias_value":"2109.07303v2","created_at":"2026-07-05T04:09:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.07303","created_at":"2026-07-05T04:09:37Z"},{"alias_kind":"pith_short_12","alias_value":"KXC7P7ZOPBLW","created_at":"2026-07-05T04:09:37Z"},{"alias_kind":"pith_short_16","alias_value":"KXC7P7ZOPBLWBL7V","created_at":"2026-07-05T04:09:37Z"},{"alias_kind":"pith_short_8","alias_value":"KXC7P7ZO","created_at":"2026-07-05T04:09:37Z"}],"graph_snapshots":[{"event_id":"sha256:983965523bedb5bc65c11812f5dba92f57b41fcab9e4b41cdb5af64b2b93cca2","target":"graph","created_at":"2026-07-05T04:09:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2109.07303/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The ESA Euclid mission will produce photometric galaxy samples over 15000 square degrees of the sky that will be rich for clustering and weak lensing statistics. The accuracy of the cosmological constraints derived from these measurements will depend on the knowledge of the underlying redshift distributions based on photometric redshift calibrations. A new approach is proposed to use the stacked spectra from Euclid slitless spectroscopy to augment broad-band photometric information to constrain the redshift distribution with spectral energy distribution fitting. The high spectral resolution av","authors_text":"A. Amara, A. Cimatti, A. Ealet, A. Grazian, A. Humphrey, A. Kiessling, A.N. Taylor, A. Secroun, B. Garilli, B.R. Granett, C. Bodendorf, C. Carbone, C. Giocoli, C.J. Conselice, C. Padilla, C. Sirignano, D. Bonino, D. Tavagnacco, E.A. Valentijn, E. Branchini, E. Franceschi, E. Maiorano, E. Medinaceli, E. Merlin, E. Romelli, E. Rossetti, F. Dubath, F. Grupp, F. Hormuth, F.J. Castander, F. Pasian, F. Raison, G. Congedo, G. Meylan, G. Polenta, G. Seidel, G. Sirri, G. Zamorani, H. Degaudenzi, H. Hoekstra, H. Kurki-Suonio, H.-W. Rix, I. Lloro, I. Tereno, I. Tutusaus, J. Carretero, J. Rhodes, J. Weller, J. Zoubian, K. Jahnke, K. Markovic, K. Pedersen, L. Conversi, L. Corcione, L. Guzzo, L. Moscardini, L. Popa, L. Pozzetti, L. Valenziano, M. Baldi, M. Bolzonella, M. Brescia, M. Castellano, M. Cropper, M. Douspis, M. Frailis, M. Kilbinger, M. Kummel, M. Kunz, M. Meneghetti, M. Moresco, M. Poncet, M. Roncarelli, M.S. Cagliari, M. Scodeggio, N. Auricchio, N. Fourmanoit, N. Welikala, O. Mansutti, O. Marggraf, P.B. Lilje, P. Franzetti, P. Hudelot, P. Schneider, R. Bender, R. Cledassou, R. Farinelli, R. Massey, R. Rebolo, R. Saglia, R. Scaramella, R. Toledo-Moreo, S. Camera, S. Cavuoti, S. Dusini, S. Ferriol, S. Kermiche, S. Ligori, S. Mei, S.M. Niemi, S. Paltani, S. Pires, S. Serrano, S.V.H. Haugan, T. Kitching, T. Vassallo, V. Capobianco, V. Pettorino, W. Holmes, W.J. Percival, Y. Copin, Y. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-15T14:00:00Z","title":"Euclid: Constraining ensemble photometric redshift distributions with stacked spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.07303","kind":"arxiv","version":2},"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:accf221720ceb127a417634764a0ab2265752a614b6cbf056561fd46f49b042f","target":"record","created_at":"2026-07-05T04:09:37Z","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":"941a3756f6071eff6c0d99b737ce2308f2d5e4a30e9cd35f7bd907943ff05947","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-15T14:00:00Z","title_canon_sha256":"9bfb30e89dbdc4cea2bc71bd329bc9c90f190c2df57986eb9cdd138e35085d07"},"schema_version":"1.0","source":{"id":"2109.07303","kind":"arxiv","version":2}},"canonical_sha256":"55c5f7ff2e785760aff5a2cf04479c2ef73294bc81730dc741d2ab42712efb30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55c5f7ff2e785760aff5a2cf04479c2ef73294bc81730dc741d2ab42712efb30","first_computed_at":"2026-07-05T04:09:37.095148Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:09:37.095148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"epvdS7z4ewAhOMw9daeu3tWFfNg8l30zEXwaINcaJDQf9X4b8R86iKBbUZ5JZE0QBpkDyUAEm6KyjrNnmqa1Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T04:09:37.095795Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.07303","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:accf221720ceb127a417634764a0ab2265752a614b6cbf056561fd46f49b042f","sha256:983965523bedb5bc65c11812f5dba92f57b41fcab9e4b41cdb5af64b2b93cca2"],"state_sha256":"9f3a65013de6437785fb0b105ab0d8c0682be008fd108ba8bd8bad2a525acd8c"}