{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ZP2ZJNMOY2FICF5F6FQM2DNSWM","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":"9f0f7490b844892c4b67661701e50e0861d6c4fa760813bf52c9748dbaf6a2aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-12-08T20:40:53Z","title_canon_sha256":"11b928d75c3c63f6fbb7df8b83a883c3bf14264f39e8d4b9cc1ced63d3e6a97d"},"schema_version":"1.0","source":{"id":"2212.04557","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.04557","created_at":"2026-07-05T06:38:33Z"},{"alias_kind":"arxiv_version","alias_value":"2212.04557v2","created_at":"2026-07-05T06:38:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.04557","created_at":"2026-07-05T06:38:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZP2ZJNMOY2FI","created_at":"2026-07-05T06:38:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZP2ZJNMOY2FICF5F","created_at":"2026-07-05T06:38:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZP2ZJNMO","created_at":"2026-07-05T06:38:33Z"}],"graph_snapshots":[{"event_id":"sha256:0e7eeec241c9805af874ea31e1ca83bbd5faa019308ba4b5d00be8d540046838","target":"graph","created_at":"2026-07-05T06:38:33Z","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/2212.04557/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The carbon-to-oxygen (C/O) ratio in an exoplanet atmosphere has been suggested as a potential diagnostic of planet formation. Now that a number of exoplanets have measured C/O ratios, it is possible to examine this diagnostic at a population level. Here, we present an analysis of currently measured C/O ratios of directly imaged and transit/eclipse planets. First, we derive atmospheric parameters for the substellar companion HD 284149 AB b using data taken with the OSIRIS integral field spectrograph at the W.M. Keck Observatory and report two non-detections from our ongoing imaging spectroscopy","authors_text":"Bruce Macintosh, Christian Marois, Christopher A. Theissen, Emily L. Rickman, Jean-Baptiste Ruffio, Kielan K. W. Hoch, Marshall D. Perrin, Quinn M. Konopacky, Travis S. Barman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-12-08T20:40:53Z","title":"Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.04557","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":"sha256:49b649611fdeb75e2e22ac3954f2c388e17477e88fd320462d1a656ec3a20696","target":"record","created_at":"2026-07-05T06:38:33Z","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":"9f0f7490b844892c4b67661701e50e0861d6c4fa760813bf52c9748dbaf6a2aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-12-08T20:40:53Z","title_canon_sha256":"11b928d75c3c63f6fbb7df8b83a883c3bf14264f39e8d4b9cc1ced63d3e6a97d"},"schema_version":"1.0","source":{"id":"2212.04557","kind":"arxiv","version":2}},"canonical_sha256":"cbf594b58ec68a8117a5f160cd0db2b32a8cbb8993b5cb0fdc990e2f61c15f99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbf594b58ec68a8117a5f160cd0db2b32a8cbb8993b5cb0fdc990e2f61c15f99","first_computed_at":"2026-07-05T06:38:33.316227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:38:33.316227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GXoYajbB4xq1u0vJcdSjLxvdh9rju9NAp/bExKNyyzFceS5y+yC7Sd5T/UYEjDT6fyiMGdkXkAsuIWlJdokVDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:38:33.316758Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.04557","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49b649611fdeb75e2e22ac3954f2c388e17477e88fd320462d1a656ec3a20696","sha256:0e7eeec241c9805af874ea31e1ca83bbd5faa019308ba4b5d00be8d540046838"],"state_sha256":"cec5803d77fdb6f983d087fbd93a91fd88d9616e7c75863d0536191fc2321c7e"}