{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PLKQFLDCGJZMLK4MDMK7EAFUML","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":"cc9bb144212d4b7ff4df0002aabadffb3ab1e9f63e90520404330224a3fa4fa7","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-02-24T19:00:00Z","title_canon_sha256":"f723f9357be23f286af615fe6d2ff3ac205dbc6fb0f0f2cf0304bfd74cc4a565"},"schema_version":"1.0","source":{"id":"2602.21283","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.21283","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"arxiv_version","alias_value":"2602.21283v2","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.21283","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_12","alias_value":"PLKQFLDCGJZM","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_16","alias_value":"PLKQFLDCGJZMLK4M","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_8","alias_value":"PLKQFLDC","created_at":"2026-06-19T16:10:35Z"}],"graph_snapshots":[{"event_id":"sha256:67887ee52a70720f71f26ebe4a6b6876f6049daf6f28a5aa27542aa4f743ea6a","target":"graph","created_at":"2026-06-19T16:10:35Z","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/2602.21283/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Crater II (CraII), a large and low-density dwarf spheroidal galaxy, has unusual observed properties that are difficult to reproduce in cold dark matter simulations. Ongoing tidal disruption may help explain the discrepancies, as evidenced by the recent discovery of tidal tails. Here we present metallicity-sensitive narrowband photometry of the Ca II H and K lines from the Dark Energy Camera, covering $128$ deg$^2$ across the center and identified tidal tails of CraII as part of the Mapping the Ancient Galaxy in CaHK (MAGIC) survey. Our combined photometric metallicity, color-magnitude, proper ","authors_text":"A. Katherina Vivas, Alexander H. Riley, Alexander P. Ji, Alex Drlica-Wagner, Alistair R. Walker, Andrew B. Pace, Anirudh Chiti, Astha Chaturvedi, Bur\\c{c}in Mutlu-Pakdil, Clara E. Mart\\'inez-V\\'azquez, David J. James, David J. Sand, Deepthi S. Prabhu, Denija Crnojevi\\'c, Denis Erkal, Guilherme Limberg, Gustavo E. Medina, Guy S. Stringfellow, Jeffrey L. Carlin, Joanna D. Sakowska, Julio A. Carballo-Bello, Kaia R. Atzberger, Mahdieh Navabi, Nitya Kallivayalil, Noelia E. D. No\\\"el, Peter S. Ferguson, Ting S. Li, Vinicius M. Placco, William Cerny, Yumi Choi","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-02-24T19:00:00Z","title":"The DECam MAGIC Survey: Uncovering the Tidal Tails of the Crater II Dwarf Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.21283","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":"sha256:85bf99f13f6f4ce46816d9cc86d0d91fc7b0d97dbda9b1f2baba7346361cfa11","target":"record","created_at":"2026-06-19T16:10:35Z","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":"cc9bb144212d4b7ff4df0002aabadffb3ab1e9f63e90520404330224a3fa4fa7","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-02-24T19:00:00Z","title_canon_sha256":"f723f9357be23f286af615fe6d2ff3ac205dbc6fb0f0f2cf0304bfd74cc4a565"},"schema_version":"1.0","source":{"id":"2602.21283","kind":"arxiv","version":2}},"canonical_sha256":"7ad502ac623272c5ab8c1b15f200b462d9267ffd4cd4dc86945917c766fa5d7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ad502ac623272c5ab8c1b15f200b462d9267ffd4cd4dc86945917c766fa5d7d","first_computed_at":"2026-06-19T16:10:35.977964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:10:35.977964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WaoJSrDnUINahrHO/ZZ1nVcsGjITnDIcc2R5c5ZwtGEZiWjQP1auVlJpflqt4UDh6la4Poeb5EMtSe5/ZUYGBg==","signature_status":"signed_v1","signed_at":"2026-06-19T16:10:35.978542Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.21283","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85bf99f13f6f4ce46816d9cc86d0d91fc7b0d97dbda9b1f2baba7346361cfa11","sha256:67887ee52a70720f71f26ebe4a6b6876f6049daf6f28a5aa27542aa4f743ea6a"],"state_sha256":"e5b4ff288140d33a5ec8abb43b6fa64c743fe542dcd22103a8d40763d6a0e41e"}