{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QYJU24SJOMYH3YG7K4SAC4B52A","short_pith_number":"pith:QYJU24SJ","canonical_record":{"source":{"id":"1411.5055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-18T22:28:17Z","cross_cats_sorted":[],"title_canon_sha256":"20d5744fdbc68242fbecdfad0545321f67a7c679aa3208a964824dea108af138","abstract_canon_sha256":"90e789cd9aae00d14a162bb98ac7c679a00c9372787c9d67c3e977895eb44e80"},"schema_version":"1.0"},"canonical_sha256":"86134d724973307de0df572401703dd030f57ef823d9faef398b1ead0ef0f5f0","source":{"kind":"arxiv","id":"1411.5055","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.5055","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"arxiv_version","alias_value":"1411.5055v1","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.5055","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"pith_short_12","alias_value":"QYJU24SJOMYH","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QYJU24SJOMYH3YG7","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QYJU24SJ","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QYJU24SJOMYH3YG7K4SAC4B52A","target":"record","payload":{"canonical_record":{"source":{"id":"1411.5055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-18T22:28:17Z","cross_cats_sorted":[],"title_canon_sha256":"20d5744fdbc68242fbecdfad0545321f67a7c679aa3208a964824dea108af138","abstract_canon_sha256":"90e789cd9aae00d14a162bb98ac7c679a00c9372787c9d67c3e977895eb44e80"},"schema_version":"1.0"},"canonical_sha256":"86134d724973307de0df572401703dd030f57ef823d9faef398b1ead0ef0f5f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:29.255219Z","signature_b64":"l19nPy8/UJJClQBGsXOuQcwr7lt+Ot8rrzj3hPNYkZEiX+Ck1qUvEUQpYSw24+FE7LhDcMkKWhpVRL2XcC7lAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86134d724973307de0df572401703dd030f57ef823d9faef398b1ead0ef0f5f0","last_reissued_at":"2026-05-18T01:41:29.254660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:29.254660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.5055","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":"2026-05-18T01:41:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JsuZbn1ZYNkywL7E1/sJqP60ZoNooiS6FBtkIRaJwXi1jL8PFpl/fvH9YD19yS5gzK914EqZI3KqxxmUQqNEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:03:21.344468Z"},"content_sha256":"3996205f226580e00e43fdd7e4b1e82801b88975bb4e092b0b96916749264816","schema_version":"1.0","event_id":"sha256:3996205f226580e00e43fdd7e4b1e82801b88975bb4e092b0b96916749264816"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QYJU24SJOMYH3YG7K4SAC4B52A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HD/H2 as a probe of the roles of gas, dust, light, metallicity and cosmic rays in promoting the growth of molecular hydrogen in the diffuse interstellar medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"H. S. Liszt","submitted_at":"2014-11-18T22:28:17Z","abstract_excerpt":"We modelled recent observations of UV absorption of HD and \\HH\\ in the Milky Way and toward damped/sub-damped Lyman alpha systems at z=0.18 and z $>$ 1.7. N(HD)/N(\\HH) ratios reflect the separate self-shieldings of HD and \\HH\\ and the coupling introduced by deuteration chemistry. Locally, observations are explained by diffuse molecular gas with $ 16 \\pccc \\la$ n(H) $\\la 128 \\pccc $ if the cosmic-ray ionization rate per H-nucleus \\zetaH $= 2\\times 10^{-16}\\ps$ as inferred from \\H3\\p\\ and OH\\p. The dominant influence on N(HD)/N(\\HH) is the cosmic-ray ionization rate with a much weaker downward d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.5055","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":""},"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":"2026-05-18T01:41:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/TluUuC5xQ8t0+D1K/iLUBlL4KMluOWyLX6kpqcg/c69LVTkqHTtmp4yaNg93QW/bCgYKbyvoOoGrq3r3KHDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:03:21.344813Z"},"content_sha256":"eaa9cc908fcd6c2591593dc454d712f6c18eea1c84c33bf95f9af78da691be49","schema_version":"1.0","event_id":"sha256:eaa9cc908fcd6c2591593dc454d712f6c18eea1c84c33bf95f9af78da691be49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYJU24SJOMYH3YG7K4SAC4B52A/bundle.json","state_url":"https://pith.science/pith/QYJU24SJOMYH3YG7K4SAC4B52A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYJU24SJOMYH3YG7K4SAC4B52A/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":"2026-06-02T04:03:21Z","links":{"resolver":"https://pith.science/pith/QYJU24SJOMYH3YG7K4SAC4B52A","bundle":"https://pith.science/pith/QYJU24SJOMYH3YG7K4SAC4B52A/bundle.json","state":"https://pith.science/pith/QYJU24SJOMYH3YG7K4SAC4B52A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYJU24SJOMYH3YG7K4SAC4B52A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QYJU24SJOMYH3YG7K4SAC4B52A","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":"90e789cd9aae00d14a162bb98ac7c679a00c9372787c9d67c3e977895eb44e80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-18T22:28:17Z","title_canon_sha256":"20d5744fdbc68242fbecdfad0545321f67a7c679aa3208a964824dea108af138"},"schema_version":"1.0","source":{"id":"1411.5055","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.5055","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"arxiv_version","alias_value":"1411.5055v1","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.5055","created_at":"2026-05-18T01:41:29Z"},{"alias_kind":"pith_short_12","alias_value":"QYJU24SJOMYH","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QYJU24SJOMYH3YG7","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QYJU24SJ","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:eaa9cc908fcd6c2591593dc454d712f6c18eea1c84c33bf95f9af78da691be49","target":"graph","created_at":"2026-05-18T01:41:29Z","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 modelled recent observations of UV absorption of HD and \\HH\\ in the Milky Way and toward damped/sub-damped Lyman alpha systems at z=0.18 and z $>$ 1.7. N(HD)/N(\\HH) ratios reflect the separate self-shieldings of HD and \\HH\\ and the coupling introduced by deuteration chemistry. Locally, observations are explained by diffuse molecular gas with $ 16 \\pccc \\la$ n(H) $\\la 128 \\pccc $ if the cosmic-ray ionization rate per H-nucleus \\zetaH $= 2\\times 10^{-16}\\ps$ as inferred from \\H3\\p\\ and OH\\p. The dominant influence on N(HD)/N(\\HH) is the cosmic-ray ionization rate with a much weaker downward d","authors_text":"H. S. Liszt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-18T22:28:17Z","title":"HD/H2 as a probe of the roles of gas, dust, light, metallicity and cosmic rays in promoting the growth of molecular hydrogen in the diffuse interstellar medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.5055","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":"sha256:3996205f226580e00e43fdd7e4b1e82801b88975bb4e092b0b96916749264816","target":"record","created_at":"2026-05-18T01:41:29Z","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":"90e789cd9aae00d14a162bb98ac7c679a00c9372787c9d67c3e977895eb44e80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-18T22:28:17Z","title_canon_sha256":"20d5744fdbc68242fbecdfad0545321f67a7c679aa3208a964824dea108af138"},"schema_version":"1.0","source":{"id":"1411.5055","kind":"arxiv","version":1}},"canonical_sha256":"86134d724973307de0df572401703dd030f57ef823d9faef398b1ead0ef0f5f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86134d724973307de0df572401703dd030f57ef823d9faef398b1ead0ef0f5f0","first_computed_at":"2026-05-18T01:41:29.254660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:29.254660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l19nPy8/UJJClQBGsXOuQcwr7lt+Ot8rrzj3hPNYkZEiX+Ck1qUvEUQpYSw24+FE7LhDcMkKWhpVRL2XcC7lAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:29.255219Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.5055","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3996205f226580e00e43fdd7e4b1e82801b88975bb4e092b0b96916749264816","sha256:eaa9cc908fcd6c2591593dc454d712f6c18eea1c84c33bf95f9af78da691be49"],"state_sha256":"c750e7016ffa78bf40eb24b1b07c4d5f5f0287555d4b2921b2454aa5678a3789"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lj6Hwf4+svOz5IqFN0p0krH8PJe9AhhnmyGPVE70tiNJstk+VRQzl2n8mJ6jQpZ7hCXfJGXmC7gQ1/eyY80lAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T04:03:21.346770Z","bundle_sha256":"246b104ffb8fa1b9e7ac265535dcdd94c3afc7848266e3019c298b0c4649282f"}}