{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:6GRQCLFBOP3OWU47UIXH5G4S7W","short_pith_number":"pith:6GRQCLFB","canonical_record":{"source":{"id":"1408.4696","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-08-20T15:29:08Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"e3f308f0e88b4bc35206142395c19d27e542062566d4728cb84b456deaff1b5b","abstract_canon_sha256":"0c99bc7d1cad316fcb370331d834207cba835d9b82f460ea5f6287f8a0cec01c"},"schema_version":"1.0"},"canonical_sha256":"f1a3012ca173f6eb539fa22e7e9b92fd95166bb138c0a7e393a7d7a2077d9e4e","source":{"kind":"arxiv","id":"1408.4696","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.4696","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"1408.4696v3","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.4696","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"6GRQCLFBOP3O","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6GRQCLFBOP3OWU47","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6GRQCLFB","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:6GRQCLFBOP3OWU47UIXH5G4S7W","target":"record","payload":{"canonical_record":{"source":{"id":"1408.4696","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-08-20T15:29:08Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"e3f308f0e88b4bc35206142395c19d27e542062566d4728cb84b456deaff1b5b","abstract_canon_sha256":"0c99bc7d1cad316fcb370331d834207cba835d9b82f460ea5f6287f8a0cec01c"},"schema_version":"1.0"},"canonical_sha256":"f1a3012ca173f6eb539fa22e7e9b92fd95166bb138c0a7e393a7d7a2077d9e4e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:56.877096Z","signature_b64":"kSlEj5p8GigIm+k+zUmiWRHcBdoFTOqYJWlC6fPPs+A2/d5/odnZOcQcfvJJO9AEYNMGjVLNn3OkdERFRUb8Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f1a3012ca173f6eb539fa22e7e9b92fd95166bb138c0a7e393a7d7a2077d9e4e","last_reissued_at":"2026-05-18T01:36:56.876468Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:56.876468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.4696","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6VXy8/bH8cvUith4WwkjVnSIUooTBIIFvQG+GP4R3ddAoI8Z3Y7MHuWOjrPrhcU5rdZyLINJbYUHx8dMerVZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T10:06:58.733150Z"},"content_sha256":"c016951eea694cd2ca78eea4f4d49c121820f442ca1fc640b4ed474128619a0d","schema_version":"1.0","event_id":"sha256:c016951eea694cd2ca78eea4f4d49c121820f442ca1fc640b4ed474128619a0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:6GRQCLFBOP3OWU47UIXH5G4S7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reaction Studies of Neutral Atomic ${\\rm C}$ with ${\\rm H_3^+}$ using a Merged-Beams Apparatus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"astro-ph.IM","authors_text":"A. P. O'Connor, D. W. Savin, J. St\\\"utzel, K. A. Miller, M. Garrido, N. de Ruette, X. Urbain","submitted_at":"2014-08-20T15:29:08Z","abstract_excerpt":"We have investigated the chemistry of ${\\rm C + H_3^+}$ forming CH$^+$, CH$_2^+$, and CH$_3^+$. These reactions are believed to be some of the key gas-phase astrochemical processes initiating the formation of organic molecules in molecular clouds. For this work we have constructed a novel merged fast-beams apparatus which overlaps a beam of molecular ions onto a beam of ground-term neutral atoms. Here we present cross section data for forming CH$^+$ and CH$_2^+$ at collision energies from $\\approx 9$ meV to $\\approx20$ and 3 eV, respectively. Using these data we have derived thermal rate coeff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.4696","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T01:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vnOZSNo57CWpav5ZXVRNgNZeZDCwqGpqQqqbwEpzQ4x237CgnerJTdn8OgCzi4GitSIcZpNxGk7sO37orsInBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T10:06:58.733511Z"},"content_sha256":"43839383640101c0b50c2b5ac7d72f63ac941997db61ba02d6eadcbcd48a0d8a","schema_version":"1.0","event_id":"sha256:43839383640101c0b50c2b5ac7d72f63ac941997db61ba02d6eadcbcd48a0d8a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/bundle.json","state_url":"https://pith.science/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/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":"2026-05-21T10:06:58Z","links":{"resolver":"https://pith.science/pith/6GRQCLFBOP3OWU47UIXH5G4S7W","bundle":"https://pith.science/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/bundle.json","state":"https://pith.science/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6GRQCLFBOP3OWU47UIXH5G4S7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:6GRQCLFBOP3OWU47UIXH5G4S7W","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":"0c99bc7d1cad316fcb370331d834207cba835d9b82f460ea5f6287f8a0cec01c","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-08-20T15:29:08Z","title_canon_sha256":"e3f308f0e88b4bc35206142395c19d27e542062566d4728cb84b456deaff1b5b"},"schema_version":"1.0","source":{"id":"1408.4696","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.4696","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"1408.4696v3","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.4696","created_at":"2026-05-18T01:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"6GRQCLFBOP3O","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6GRQCLFBOP3OWU47","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6GRQCLFB","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:43839383640101c0b50c2b5ac7d72f63ac941997db61ba02d6eadcbcd48a0d8a","target":"graph","created_at":"2026-05-18T01:36:56Z","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"},"paper":{"abstract_excerpt":"We have investigated the chemistry of ${\\rm C + H_3^+}$ forming CH$^+$, CH$_2^+$, and CH$_3^+$. These reactions are believed to be some of the key gas-phase astrochemical processes initiating the formation of organic molecules in molecular clouds. For this work we have constructed a novel merged fast-beams apparatus which overlaps a beam of molecular ions onto a beam of ground-term neutral atoms. Here we present cross section data for forming CH$^+$ and CH$_2^+$ at collision energies from $\\approx 9$ meV to $\\approx20$ and 3 eV, respectively. Using these data we have derived thermal rate coeff","authors_text":"A. P. O'Connor, D. W. Savin, J. St\\\"utzel, K. A. Miller, M. Garrido, N. de Ruette, X. Urbain","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-08-20T15:29:08Z","title":"Reaction Studies of Neutral Atomic ${\\rm C}$ with ${\\rm H_3^+}$ using a Merged-Beams Apparatus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.4696","kind":"arxiv","version":3},"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:c016951eea694cd2ca78eea4f4d49c121820f442ca1fc640b4ed474128619a0d","target":"record","created_at":"2026-05-18T01:36:56Z","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":"0c99bc7d1cad316fcb370331d834207cba835d9b82f460ea5f6287f8a0cec01c","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-08-20T15:29:08Z","title_canon_sha256":"e3f308f0e88b4bc35206142395c19d27e542062566d4728cb84b456deaff1b5b"},"schema_version":"1.0","source":{"id":"1408.4696","kind":"arxiv","version":3}},"canonical_sha256":"f1a3012ca173f6eb539fa22e7e9b92fd95166bb138c0a7e393a7d7a2077d9e4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f1a3012ca173f6eb539fa22e7e9b92fd95166bb138c0a7e393a7d7a2077d9e4e","first_computed_at":"2026-05-18T01:36:56.876468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:56.876468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kSlEj5p8GigIm+k+zUmiWRHcBdoFTOqYJWlC6fPPs+A2/d5/odnZOcQcfvJJO9AEYNMGjVLNn3OkdERFRUb8Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:56.877096Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.4696","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c016951eea694cd2ca78eea4f4d49c121820f442ca1fc640b4ed474128619a0d","sha256:43839383640101c0b50c2b5ac7d72f63ac941997db61ba02d6eadcbcd48a0d8a"],"state_sha256":"ed1a708f34e6d7b9e6e2bd4bcf276728c51de27bf920d1b95cbe92e3b6fc354b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OXN1YuMy2GJS8S4l6uT7tRCLMddOz0Jz8PTOVroXF9nnf+a+nmdpNqEwbig0udoJH9rmd1EcKIOulripD9tuDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T10:06:58.735629Z","bundle_sha256":"2e103e606a029e1493399732f6ab2779e06b381ab20a60a8bdde2892f7b99577"}}