{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:XIE3XILJHZRIO4LDCHGUGQXWPT","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":"0a8258301410e94e78bfa1aabfec37d31f0776b385648ffaf19cbe4ff68ae3bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-22T19:39:09Z","title_canon_sha256":"72d69287866bdecc19e37be86f60b1f945b618794f53668c9ca6de798f87bbf5"},"schema_version":"1.0","source":{"id":"2411.15327","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.15327","created_at":"2026-07-05T09:39:33Z"},{"alias_kind":"arxiv_version","alias_value":"2411.15327v1","created_at":"2026-07-05T09:39:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.15327","created_at":"2026-07-05T09:39:33Z"},{"alias_kind":"pith_short_12","alias_value":"XIE3XILJHZRI","created_at":"2026-07-05T09:39:33Z"},{"alias_kind":"pith_short_16","alias_value":"XIE3XILJHZRIO4LD","created_at":"2026-07-05T09:39:33Z"},{"alias_kind":"pith_short_8","alias_value":"XIE3XILJ","created_at":"2026-07-05T09:39:33Z"}],"graph_snapshots":[{"event_id":"sha256:3c3da1c2edbc9a9c42f327f62d29a2ed83977f48c462559c8cf74a93d350cc90","target":"graph","created_at":"2026-07-05T09:39:33Z","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/2411.15327/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The study of chemical evolution is of paramount importance for understanding the galaxies evolution. Models and observations propose an inside-out mechanism in the formation of spiral galaxy disks implying a negative radial gradient of elemental abundances when represented in logarithmic scale. However, observed chemical abundance gradients, in some instances, deviate from a single linear negative straight line, revealing inner drops or outer flattenings, particularly in more massive galaxies. This study analyzes oxygen abundance gradients in spiral galaxies based on observations from the Cala","authors_text":"A. F. S. Cardoso, L. S\\'anchez-Menguiano, M. Moll\\'a, O. Cavichia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-22T19:39:09Z","title":"Analysis of the Internal Radial Gradient of Chemical Abundances in Spiral Galaxies from CALIFA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.15327","kind":"arxiv","version":1},"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":"sha256:29182e9ec76989fcc30c1bc57020d348bcaec95e2c6e13a7b4e6359ced737402","target":"record","created_at":"2026-07-05T09:39:33Z","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":"0a8258301410e94e78bfa1aabfec37d31f0776b385648ffaf19cbe4ff68ae3bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-22T19:39:09Z","title_canon_sha256":"72d69287866bdecc19e37be86f60b1f945b618794f53668c9ca6de798f87bbf5"},"schema_version":"1.0","source":{"id":"2411.15327","kind":"arxiv","version":1}},"canonical_sha256":"ba09bba1693e6287716311cd4342f67cfda294ea32914c5c221d7927d97aaaa3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba09bba1693e6287716311cd4342f67cfda294ea32914c5c221d7927d97aaaa3","first_computed_at":"2026-07-05T09:39:33.272771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:39:33.272771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pAH+w09CtybbC3xU/Noj1gz0xmL9Qdxs8NVRrljSBU67miMAOB13kkA7BCsdRTKK5QictyU+H7zHwt7c5voACQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:39:33.273249Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.15327","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29182e9ec76989fcc30c1bc57020d348bcaec95e2c6e13a7b4e6359ced737402","sha256:3c3da1c2edbc9a9c42f327f62d29a2ed83977f48c462559c8cf74a93d350cc90"],"state_sha256":"c17f5a6212eaafcf592a0ac1e93fec0230b4c95472dbec88853ab9928f8148ce"}