{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:ADFMJTTIZEDQTYX6ZNFT246QIO","short_pith_number":"pith:ADFMJTTI","canonical_record":{"source":{"id":"2302.12970","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-02-25T03:25:19Z","cross_cats_sorted":[],"title_canon_sha256":"1c2334964a7ed6f1b0da291c9cee62bc102aca03dd4275d43ea339fee0172576","abstract_canon_sha256":"738b9d8e6ef2a94180585e40cbdfd151c33cbcd5c0b9e9c18842219fc280e9ed"},"schema_version":"1.0"},"canonical_sha256":"00cac4ce68c90709e2fecb4b3d73d04389efd4e026395a4e1b2208167314a402","source":{"kind":"arxiv","id":"2302.12970","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.12970","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"2302.12970v2","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.12970","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"ADFMJTTIZEDQ","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_16","alias_value":"ADFMJTTIZEDQTYX6","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_8","alias_value":"ADFMJTTI","created_at":"2026-07-05T05:58:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:ADFMJTTIZEDQTYX6ZNFT246QIO","target":"record","payload":{"canonical_record":{"source":{"id":"2302.12970","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-02-25T03:25:19Z","cross_cats_sorted":[],"title_canon_sha256":"1c2334964a7ed6f1b0da291c9cee62bc102aca03dd4275d43ea339fee0172576","abstract_canon_sha256":"738b9d8e6ef2a94180585e40cbdfd151c33cbcd5c0b9e9c18842219fc280e9ed"},"schema_version":"1.0"},"canonical_sha256":"00cac4ce68c90709e2fecb4b3d73d04389efd4e026395a4e1b2208167314a402","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:58:41.069429Z","signature_b64":"3tQ/JSVA3sqfFEBTUYjHJbHkeFEEKOjxJ+UMQcF0pvts0dtzDW86KrK5wddsPf/uTobdF2ahx4tXwtmk82vhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00cac4ce68c90709e2fecb4b3d73d04389efd4e026395a4e1b2208167314a402","last_reissued_at":"2026-07-05T05:58:41.069041Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:58:41.069041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.12970","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xwyRmIx5BCo7lJ6m5t0gO/gDoTbZdVFpSGHl2pXjiu3jGAmwIBiBGnsl1l1k+zJsq/rQZ4Y6hVJbUyc3WkcIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T07:20:21.127206Z"},"content_sha256":"51a4e39ede69c7aa974500bace591e8220697964d90b04b726d8fc6dfda92a0e","schema_version":"1.0","event_id":"sha256:51a4e39ede69c7aa974500bace591e8220697964d90b04b726d8fc6dfda92a0e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:ADFMJTTIZEDQTYX6ZNFT246QIO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Abundance ratios of OH/CO and HCO+/CO as probes of the cosmic ray ionization rate in diffuse clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Di Li, Gan Luo, Junzhi Wang, Nannan Yue, Ningyu Tang, Pei Zuo, Ping Zhou, Thomas G. Bisbas, Zhiyu Zhang","submitted_at":"2023-02-25T03:25:19Z","abstract_excerpt":"The cosmic-ray ionization rate (CRIR, $\\zeta_2$) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as H$_3^+$, OH$^+$, and H$_2$O$^+$, are hard to detect and require the presence of background massive stars for absorption measurements. In this work, we propose an alternative method to infer the CRIR in diffuse clouds using the abundance ratios of OH/CO and HCO$^+$/CO. We have analyzed the response of chemical abundances of CO, OH, and HCO$^+$ on various environmental parame"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.12970","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.12970/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TfMqBfYCkeR6WsjMQiH97BmXCAbMX4sSo09XCdQlcrs8e7uQmMKJxRdoFxtY18S/VUNvE0uhaQj+A5BHBFZ2AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T07:20:21.127732Z"},"content_sha256":"bbe1c4f2e0b6ebe3d04dac4da7693c61d0fb3cb337348d8d260d3f38e74db6f2","schema_version":"1.0","event_id":"sha256:bbe1c4f2e0b6ebe3d04dac4da7693c61d0fb3cb337348d8d260d3f38e74db6f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/bundle.json","state_url":"https://pith.science/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-12T07:20:21Z","links":{"resolver":"https://pith.science/pith/ADFMJTTIZEDQTYX6ZNFT246QIO","bundle":"https://pith.science/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/bundle.json","state":"https://pith.science/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADFMJTTIZEDQTYX6ZNFT246QIO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ADFMJTTIZEDQTYX6ZNFT246QIO","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":"738b9d8e6ef2a94180585e40cbdfd151c33cbcd5c0b9e9c18842219fc280e9ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-02-25T03:25:19Z","title_canon_sha256":"1c2334964a7ed6f1b0da291c9cee62bc102aca03dd4275d43ea339fee0172576"},"schema_version":"1.0","source":{"id":"2302.12970","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.12970","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"2302.12970v2","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.12970","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"ADFMJTTIZEDQ","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_16","alias_value":"ADFMJTTIZEDQTYX6","created_at":"2026-07-05T05:58:41Z"},{"alias_kind":"pith_short_8","alias_value":"ADFMJTTI","created_at":"2026-07-05T05:58:41Z"}],"graph_snapshots":[{"event_id":"sha256:bbe1c4f2e0b6ebe3d04dac4da7693c61d0fb3cb337348d8d260d3f38e74db6f2","target":"graph","created_at":"2026-07-05T05:58:41Z","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/2302.12970/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The cosmic-ray ionization rate (CRIR, $\\zeta_2$) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as H$_3^+$, OH$^+$, and H$_2$O$^+$, are hard to detect and require the presence of background massive stars for absorption measurements. In this work, we propose an alternative method to infer the CRIR in diffuse clouds using the abundance ratios of OH/CO and HCO$^+$/CO. We have analyzed the response of chemical abundances of CO, OH, and HCO$^+$ on various environmental parame","authors_text":"Di Li, Gan Luo, Junzhi Wang, Nannan Yue, Ningyu Tang, Pei Zuo, Ping Zhou, Thomas G. Bisbas, Zhiyu Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-02-25T03:25:19Z","title":"Abundance ratios of OH/CO and HCO+/CO as probes of the cosmic ray ionization rate in diffuse clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.12970","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":"sha256:51a4e39ede69c7aa974500bace591e8220697964d90b04b726d8fc6dfda92a0e","target":"record","created_at":"2026-07-05T05:58:41Z","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":"738b9d8e6ef2a94180585e40cbdfd151c33cbcd5c0b9e9c18842219fc280e9ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-02-25T03:25:19Z","title_canon_sha256":"1c2334964a7ed6f1b0da291c9cee62bc102aca03dd4275d43ea339fee0172576"},"schema_version":"1.0","source":{"id":"2302.12970","kind":"arxiv","version":2}},"canonical_sha256":"00cac4ce68c90709e2fecb4b3d73d04389efd4e026395a4e1b2208167314a402","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00cac4ce68c90709e2fecb4b3d73d04389efd4e026395a4e1b2208167314a402","first_computed_at":"2026-07-05T05:58:41.069041Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:58:41.069041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3tQ/JSVA3sqfFEBTUYjHJbHkeFEEKOjxJ+UMQcF0pvts0dtzDW86KrK5wddsPf/uTobdF2ahx4tXwtmk82vhBA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:58:41.069429Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.12970","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51a4e39ede69c7aa974500bace591e8220697964d90b04b726d8fc6dfda92a0e","sha256:bbe1c4f2e0b6ebe3d04dac4da7693c61d0fb3cb337348d8d260d3f38e74db6f2"],"state_sha256":"edbe8cf50e88ffde99128a353793ea39258169e6fc1031141452b7433860f3a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s42g4EDAFXlFCzn+Qvao8LveIYoCKu7wLHWG70Fkmp1j4wL3TorNPnT5baCpm9C7LGuiqscrzZhKvmuU1zYZDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T07:20:21.133314Z","bundle_sha256":"bc0e8768f6ced93b24a3fa19b3a377e12a7ca0463245e3b1f2d87309eac4faaf"}}