{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:OTZUE2CXI6VKIK2XIZXXW6HWRP","short_pith_number":"pith:OTZUE2CX","canonical_record":{"source":{"id":"2411.08193","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-12T21:26:29Z","cross_cats_sorted":[],"title_canon_sha256":"098daa31eb69c982064fe3a1bd68365d29ee14d49522448ca8e2d26c39da6e25","abstract_canon_sha256":"7453a580e43905f3f6237e80256fa02d705c52a89bd8742264b732481437e908"},"schema_version":"1.0"},"canonical_sha256":"74f342685747aaa42b57466f7b78f68bf802b93d83282be185933deeff8bcf8a","source":{"kind":"arxiv","id":"2411.08193","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.08193","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"2411.08193v1","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.08193","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"OTZUE2CXI6VK","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_16","alias_value":"OTZUE2CXI6VKIK2X","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_8","alias_value":"OTZUE2CX","created_at":"2026-07-05T09:50:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:OTZUE2CXI6VKIK2XIZXXW6HWRP","target":"record","payload":{"canonical_record":{"source":{"id":"2411.08193","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-12T21:26:29Z","cross_cats_sorted":[],"title_canon_sha256":"098daa31eb69c982064fe3a1bd68365d29ee14d49522448ca8e2d26c39da6e25","abstract_canon_sha256":"7453a580e43905f3f6237e80256fa02d705c52a89bd8742264b732481437e908"},"schema_version":"1.0"},"canonical_sha256":"74f342685747aaa42b57466f7b78f68bf802b93d83282be185933deeff8bcf8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:50:36.341221Z","signature_b64":"KG+5YNDBIZ55AqG18Ktfkd9WBbsLY61gom6eKZbdeQvEiscL70uXaMtHT8bRWEJraHtzxEJtdkyd9vpMD0XGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74f342685747aaa42b57466f7b78f68bf802b93d83282be185933deeff8bcf8a","last_reissued_at":"2026-07-05T09:50:36.340760Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:50:36.340760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.08193","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:50:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rljef1DQTFNoNvUs9+phYyv5S2qhi4CvtgaBtpk9L9HJpWzGbxF96lIspknqbfE/MC2d4F6WSivqRC5Kh93jAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:09:39.551252Z"},"content_sha256":"00c25db8f33b9122eb9e81dce5637b6ac7c411078204c4e54e0c8b8b8b7d4d4d","schema_version":"1.0","event_id":"sha256:00c25db8f33b9122eb9e81dce5637b6ac7c411078204c4e54e0c8b8b8b7d4d4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:OTZUE2CXI6VKIK2XIZXXW6HWRP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revisiting rotationally excited CH at radio wavelengths: A case study towards W51","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alexandre Faure, Arshia M. Jacob, Carlos A. Duran, David A. Neufeld, Karl M. Menten, Maitraiyee Tiwari, Meera Nandakumar, Nirupam Roy, Thushara G. S. Pillai, Timothy Robishaw","submitted_at":"2024-11-12T21:26:29Z","abstract_excerpt":"Ever since they were first detected in the interstellar medium, the radio wavelength (3.3 GHz) hyperfine-structure splitting transitions in the rotational ground state of CH have been observed to show anomalous excitation. Astonishingly, this behaviour has been uniformly observed towards a variety of different sources probing a wide range of physical conditions. While the observed level inversion can be explained globally by a pumping scheme involving collisions, a description of the extent of 'over-excitation' observed in individual sources requires the inclusion of radiative processes, invol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.08193","kind":"arxiv","version":1},"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/2411.08193/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":"2026-07-05T09:50:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1RhL9MKNekd4PZKAQ+tCGQV231bKB1jihcjPP2rrWalUkLn+VQBQk9A5T/qylQUEUtWizxaij5Bixhf2+eWAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:09:39.552130Z"},"content_sha256":"3b401a9d44c414604454a1c4afb1e5be405184b15bb52ededbe08e6ef1d20043","schema_version":"1.0","event_id":"sha256:3b401a9d44c414604454a1c4afb1e5be405184b15bb52ededbe08e6ef1d20043"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/bundle.json","state_url":"https://pith.science/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/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":"2026-08-20T02:09:39Z","links":{"resolver":"https://pith.science/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP","bundle":"https://pith.science/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/bundle.json","state":"https://pith.science/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OTZUE2CXI6VKIK2XIZXXW6HWRP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OTZUE2CXI6VKIK2XIZXXW6HWRP","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":"7453a580e43905f3f6237e80256fa02d705c52a89bd8742264b732481437e908","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-12T21:26:29Z","title_canon_sha256":"098daa31eb69c982064fe3a1bd68365d29ee14d49522448ca8e2d26c39da6e25"},"schema_version":"1.0","source":{"id":"2411.08193","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.08193","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"2411.08193v1","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.08193","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"OTZUE2CXI6VK","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_16","alias_value":"OTZUE2CXI6VKIK2X","created_at":"2026-07-05T09:50:36Z"},{"alias_kind":"pith_short_8","alias_value":"OTZUE2CX","created_at":"2026-07-05T09:50:36Z"}],"graph_snapshots":[{"event_id":"sha256:3b401a9d44c414604454a1c4afb1e5be405184b15bb52ededbe08e6ef1d20043","target":"graph","created_at":"2026-07-05T09:50:36Z","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/2411.08193/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ever since they were first detected in the interstellar medium, the radio wavelength (3.3 GHz) hyperfine-structure splitting transitions in the rotational ground state of CH have been observed to show anomalous excitation. Astonishingly, this behaviour has been uniformly observed towards a variety of different sources probing a wide range of physical conditions. While the observed level inversion can be explained globally by a pumping scheme involving collisions, a description of the extent of 'over-excitation' observed in individual sources requires the inclusion of radiative processes, invol","authors_text":"Alexandre Faure, Arshia M. Jacob, Carlos A. Duran, David A. Neufeld, Karl M. Menten, Maitraiyee Tiwari, Meera Nandakumar, Nirupam Roy, Thushara G. S. Pillai, Timothy Robishaw","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-12T21:26:29Z","title":"Revisiting rotationally excited CH at radio wavelengths: A case study towards W51"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.08193","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":"sha256:00c25db8f33b9122eb9e81dce5637b6ac7c411078204c4e54e0c8b8b8b7d4d4d","target":"record","created_at":"2026-07-05T09:50:36Z","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":"7453a580e43905f3f6237e80256fa02d705c52a89bd8742264b732481437e908","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-11-12T21:26:29Z","title_canon_sha256":"098daa31eb69c982064fe3a1bd68365d29ee14d49522448ca8e2d26c39da6e25"},"schema_version":"1.0","source":{"id":"2411.08193","kind":"arxiv","version":1}},"canonical_sha256":"74f342685747aaa42b57466f7b78f68bf802b93d83282be185933deeff8bcf8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74f342685747aaa42b57466f7b78f68bf802b93d83282be185933deeff8bcf8a","first_computed_at":"2026-07-05T09:50:36.340760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:50:36.340760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KG+5YNDBIZ55AqG18Ktfkd9WBbsLY61gom6eKZbdeQvEiscL70uXaMtHT8bRWEJraHtzxEJtdkyd9vpMD0XGDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:50:36.341221Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.08193","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00c25db8f33b9122eb9e81dce5637b6ac7c411078204c4e54e0c8b8b8b7d4d4d","sha256:3b401a9d44c414604454a1c4afb1e5be405184b15bb52ededbe08e6ef1d20043"],"state_sha256":"905d4b6d4e158ebc557b8ce9b8393358233df61da792c5f2156fd1ba9a0d2fec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1OJBxsdc3uqjNNN/VZKggFvCUkuSbZ0th7xgQJw+WjyZcOZGT+/HzVYVPzMUkr5muiWp/WrUJ/o7iCbEbc0gDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T02:09:39.558960Z","bundle_sha256":"d4c4b5bbb435291643eac80a268b2db934221a3a8ad149fa72f91657b9b28d55"}}