{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:6NZF7TV7XV2RQKK6L2A5KOEMSD","short_pith_number":"pith:6NZF7TV7","schema_version":"1.0","canonical_sha256":"f3725fcebfbd7518295e5e81d5388c90ef15b24ca1d5c25692d74d08f1b13de3","source":{"kind":"arxiv","id":"2503.15597","version":1},"attestation_state":"computed","paper":{"title":"SAPPHIRES: A Galaxy Over-Density in the Heart of Cosmic Reionization at $z=8.47$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew J. Bunker, Christopher N. A. Willmer, Eiichi Egami, Feige Wang, Fengwu Sun, Jakob M. Helton, Masami Ouchi, Peter Behroozi, Roberto Maiolino, Tiger Yu-Yang Hsiao, Wei Leong Tee, Weizhe Liu, Xiangyu Jin, Xiaojing Lin, Yichen Liu, Yi Xu, Yongda Zhu, Yoshinobu Fudamoto, Yuichi Harikane, Zhiyuan Ji","submitted_at":"2025-03-19T18:00:01Z","abstract_excerpt":"We report the discovery of a galaxy proto-cluster candidate (dubbed MACS0416-OD-z8p5) at a spectroscopic redshift of $z\\sim8.47$, dating back to $\\sim550$Myr after the Big Bang. The observations are part of the JWST Cycle-3 treasury program, Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES) with NIRCam-grism. Using wide field slitless spectroscopy (WFSS) obtained in the MACS0416 parallel field, we robustly confirm nine galaxies at $z_{\\rm spec}\\sim8.47$ via emission line detections of [OIII]5008A (with $>5\\,\\sigma$) and tentatively confirm one additional galaxy (at $\\sim3\\"},"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":"2503.15597","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-19T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"6bc3f72defaae4fe2ab11c2a3c9b469050efc6e74171a4eb6412025a7c20990a","abstract_canon_sha256":"ad80b4d0993375bfcf0fad1447285b8be2f34ca185e7858d82af7325eb184952"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:35:53.869932Z","signature_b64":"KzRN+9V2+iYkSo/3AIAQG2myOM+mKoD44eC41+k4nvX2N7PgKB91p6CW1thMkRPwoCibxdg4Bj47uqxDyT9oCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3725fcebfbd7518295e5e81d5388c90ef15b24ca1d5c25692d74d08f1b13de3","last_reissued_at":"2026-07-05T10:35:53.869249Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:35:53.869249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"SAPPHIRES: A Galaxy Over-Density in the Heart of Cosmic Reionization at $z=8.47$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew J. Bunker, Christopher N. A. Willmer, Eiichi Egami, Feige Wang, Fengwu Sun, Jakob M. Helton, Masami Ouchi, Peter Behroozi, Roberto Maiolino, Tiger Yu-Yang Hsiao, Wei Leong Tee, Weizhe Liu, Xiangyu Jin, Xiaojing Lin, Yichen Liu, Yi Xu, Yongda Zhu, Yoshinobu Fudamoto, Yuichi Harikane, Zhiyuan Ji","submitted_at":"2025-03-19T18:00:01Z","abstract_excerpt":"We report the discovery of a galaxy proto-cluster candidate (dubbed MACS0416-OD-z8p5) at a spectroscopic redshift of $z\\sim8.47$, dating back to $\\sim550$Myr after the Big Bang. The observations are part of the JWST Cycle-3 treasury program, Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES) with NIRCam-grism. Using wide field slitless spectroscopy (WFSS) obtained in the MACS0416 parallel field, we robustly confirm nine galaxies at $z_{\\rm spec}\\sim8.47$ via emission line detections of [OIII]5008A (with $>5\\,\\sigma$) and tentatively confirm one additional galaxy (at $\\sim3\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.15597","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/2503.15597/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":"2503.15597","created_at":"2026-07-05T10:35:53.869322+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.15597v1","created_at":"2026-07-05T10:35:53.869322+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.15597","created_at":"2026-07-05T10:35:53.869322+00:00"},{"alias_kind":"pith_short_12","alias_value":"6NZF7TV7XV2R","created_at":"2026-07-05T10:35:53.869322+00:00"},{"alias_kind":"pith_short_16","alias_value":"6NZF7TV7XV2RQKK6","created_at":"2026-07-05T10:35:53.869322+00:00"},{"alias_kind":"pith_short_8","alias_value":"6NZF7TV7","created_at":"2026-07-05T10:35:53.869322+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.02720","citing_title":"A Cosmic Archipelago of lensed metal-poor galaxies at $z\\sim6$","ref_index":76,"is_internal_anchor":false},{"citing_arxiv_id":"2605.15189","citing_title":"Strong Gravitational Lensing with the James Webb Space Telescope","ref_index":241,"is_internal_anchor":false},{"citing_arxiv_id":"2606.19463","citing_title":"On the later evolution of observationally selected protocluster candidates at $z\\,{\\gtrsim}\\,5$","ref_index":295,"is_internal_anchor":false},{"citing_arxiv_id":"2507.06284","citing_title":"Before its time: a remarkably evolved protocluster core at z=7.88","ref_index":27,"is_internal_anchor":false},{"citing_arxiv_id":"2605.15189","citing_title":"Strong Gravitational Lensing with the James Webb Space Telescope","ref_index":241,"is_internal_anchor":false},{"citing_arxiv_id":"2604.21516","citing_title":"SPURS: Bursty Star Formation in an Extremely Luminous Weak Emission Line Galaxy at $z=9.3$","ref_index":169,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD","json":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD.json","graph_json":"https://pith.science/api/pith-number/6NZF7TV7XV2RQKK6L2A5KOEMSD/graph.json","events_json":"https://pith.science/api/pith-number/6NZF7TV7XV2RQKK6L2A5KOEMSD/events.json","paper":"https://pith.science/paper/6NZF7TV7"},"agent_actions":{"view_html":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD","download_json":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD.json","view_paper":"https://pith.science/paper/6NZF7TV7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.15597&json=true","fetch_graph":"https://pith.science/api/pith-number/6NZF7TV7XV2RQKK6L2A5KOEMSD/graph.json","fetch_events":"https://pith.science/api/pith-number/6NZF7TV7XV2RQKK6L2A5KOEMSD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD/action/storage_attestation","attest_author":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD/action/author_attestation","sign_citation":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD/action/citation_signature","submit_replication":"https://pith.science/pith/6NZF7TV7XV2RQKK6L2A5KOEMSD/action/replication_record"}},"created_at":"2026-07-05T10:35:53.869322+00:00","updated_at":"2026-07-05T10:35:53.869322+00:00"}