{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LXJ6CG5JTY6GFNWQAVNR67XTPO","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":"670c56ff6bdd53ff06d8e03dbdba3098dea45f2c4d3b768ddc44dd147f9ee52b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-15T18:14:31Z","title_canon_sha256":"8a77430b9c4bf61e1526a53f0b05f9f8b6d5008077f29db1f5a6fa89293726f1"},"schema_version":"1.0","source":{"id":"2009.07306","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.07306","created_at":"2026-07-05T01:47:06Z"},{"alias_kind":"arxiv_version","alias_value":"2009.07306v2","created_at":"2026-07-05T01:47:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.07306","created_at":"2026-07-05T01:47:06Z"},{"alias_kind":"pith_short_12","alias_value":"LXJ6CG5JTY6G","created_at":"2026-07-05T01:47:06Z"},{"alias_kind":"pith_short_16","alias_value":"LXJ6CG5JTY6GFNWQ","created_at":"2026-07-05T01:47:06Z"},{"alias_kind":"pith_short_8","alias_value":"LXJ6CG5J","created_at":"2026-07-05T01:47:06Z"}],"graph_snapshots":[{"event_id":"sha256:5f38ca3d9f21df4abd55d71c41409b1ad7c14d93b17517aa7d1fac678404e968","target":"graph","created_at":"2026-07-05T01:47:06Z","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/2009.07306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measuring isotopic ratios is a sensitive technique used to obtain information on stellar nucleosynthesis and chemical evolution. We present measurements of the carbon and sulphur abundances in the interstellar medium of the central region of our Galaxy. The selected targets are the +50km/s Cloud and several l.o.s. clouds towards Sgr B2(N). Towards the +50km/s Cloud, we observed the J=2-1 rotational transitions of CS, C34S, 13CS, C33S, and 13C34S, and the J=3-2 transitions of CS and C34S with the IRAM-30m telescope, as well as the J=6-5 transitions of C34S and 13CS with the APEX 12m telescope, ","authors_text":"A. Belloche, A. Hern\\'andez-G\\'omez, C. Henkel, D. Riquelme, J.-C. Loison, K. M. Menten, N. Langer, P. K. Humire, R. Mauersberger, T. Pillai, V. Thiel, V. Wakelam","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-15T18:14:31Z","title":"Sulphur and carbon isotopes towards Galactic centre clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.07306","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":"sha256:431d75c5c83344691af6883ed34f218a57bfd3029dcaa4b1f8e6c9dc20f21d61","target":"record","created_at":"2026-07-05T01:47:06Z","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":"670c56ff6bdd53ff06d8e03dbdba3098dea45f2c4d3b768ddc44dd147f9ee52b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-15T18:14:31Z","title_canon_sha256":"8a77430b9c4bf61e1526a53f0b05f9f8b6d5008077f29db1f5a6fa89293726f1"},"schema_version":"1.0","source":{"id":"2009.07306","kind":"arxiv","version":2}},"canonical_sha256":"5dd3e11ba99e3c62b6d0055b1f7ef37bbe94eedc032e1e42c72e71fe225844ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dd3e11ba99e3c62b6d0055b1f7ef37bbe94eedc032e1e42c72e71fe225844ee","first_computed_at":"2026-07-05T01:47:06.490155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:47:06.490155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rEw6JaOjtePTQDMBLhhZp32Htkduzvz0Y+e7ClS090uKRITDDEjRkzj+2g5lKUepvy4Vuj7/5kIC6A9GH9LRBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:47:06.490581Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.07306","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:431d75c5c83344691af6883ed34f218a57bfd3029dcaa4b1f8e6c9dc20f21d61","sha256:5f38ca3d9f21df4abd55d71c41409b1ad7c14d93b17517aa7d1fac678404e968"],"state_sha256":"34b9b56d3ec58440d0c11a2e5894b2fcfef690d17e042634d9fe3256120ae47f"}