{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:73AWAL3TKCFXGSEGDF7SWBFRS3","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":"2b225cfd883c34d118a28230a077adb25738f44209c3255a8fab9980b0bd5697","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-08T19:28:53Z","title_canon_sha256":"f3e0fd678b3712fbd5488bdbbddc55b6bbc22ca283782f9aee4e43e2ab19c1e5"},"schema_version":"1.0","source":{"id":"2202.04111","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.04111","created_at":"2026-07-05T04:01:10Z"},{"alias_kind":"arxiv_version","alias_value":"2202.04111v1","created_at":"2026-07-05T04:01:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.04111","created_at":"2026-07-05T04:01:10Z"},{"alias_kind":"pith_short_12","alias_value":"73AWAL3TKCFX","created_at":"2026-07-05T04:01:10Z"},{"alias_kind":"pith_short_16","alias_value":"73AWAL3TKCFXGSEG","created_at":"2026-07-05T04:01:10Z"},{"alias_kind":"pith_short_8","alias_value":"73AWAL3T","created_at":"2026-07-05T04:01:10Z"}],"graph_snapshots":[{"event_id":"sha256:d1302072e5e0564fabcf9afc4e1452a7b40ba39ae531309f29dab0d43749ff9a","target":"graph","created_at":"2026-07-05T04:01:10Z","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/2202.04111/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Central Molecular Zone (CMZ) contains most of the mass of our Galaxy but its star formation rate is one order of magnitude lower than in the Galactic disc. This is likely related to the fact that the bulk of the gas in the CMZ is in a warm ($>$100 K) and turbulent phase with little material in the pre-stellar phase. We present in this Letter observations of deuterium fractionation (D/H ratios) of HCN, HNC, HCO$^{+}$, and N$_{2}$H$^{+}$ towards the CMZ molecular cloud G+0.693-0.027. These observations clearly show, for the first time, the presence of a colder, denser, and less turbulent nar","authors_text":"F. Rico-Villas, I. Jim\\'enez-Serra, J. Mart\\'in-Pintado, L. Colzi, L. F. Rodr\\'iguez-Almeida, M. A. Requena-Torres, S. Mart\\'in, S. Zeng, V. M. Rivilla","cross_cats":["astro-ph.EP","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-08T19:28:53Z","title":"Deuterium fractionation as a multi-phase component tracer in the Galactic Centre"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04111","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:a498bd01969e9a7d337ffe2af40eafa33da382a4dd174716798e5b74e10ddf62","target":"record","created_at":"2026-07-05T04:01:10Z","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":"2b225cfd883c34d118a28230a077adb25738f44209c3255a8fab9980b0bd5697","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-02-08T19:28:53Z","title_canon_sha256":"f3e0fd678b3712fbd5488bdbbddc55b6bbc22ca283782f9aee4e43e2ab19c1e5"},"schema_version":"1.0","source":{"id":"2202.04111","kind":"arxiv","version":1}},"canonical_sha256":"fec1602f73508b734886197f2b04b196f919b148a752e3a10c13960d60fc7ee7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fec1602f73508b734886197f2b04b196f919b148a752e3a10c13960d60fc7ee7","first_computed_at":"2026-07-05T04:01:10.263348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:01:10.263348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QiCWF55aYUz4YONfCj4huJ45N0kH0rO07tOZwy0CakmSvwUSWIZp05z3BLm2JhM593mOmxme4j6qtMHE8skZAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:01:10.263811Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.04111","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a498bd01969e9a7d337ffe2af40eafa33da382a4dd174716798e5b74e10ddf62","sha256:d1302072e5e0564fabcf9afc4e1452a7b40ba39ae531309f29dab0d43749ff9a"],"state_sha256":"c776c45936dfeaa00c4899b1d71c099f8450dea7a9ed210658199a7aaf196929"}