{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VPXABJNBT35ZKK7WLKLC5NFBBI","short_pith_number":"pith:VPXABJNB","canonical_record":{"source":{"id":"1405.7797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-30T08:36:43Z","cross_cats_sorted":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"title_canon_sha256":"f9678a79cde864fea7ba497252da8c8236b35f6156e63c24a48df280761758f8","abstract_canon_sha256":"8cf238d5fedcd30de7555296d9a455eb610a02b0c0926cfcb768df4d254cec9d"},"schema_version":"1.0"},"canonical_sha256":"abee00a5a19efb952bf65a962eb4a10a2acea2e1ee73a31b1f967bc668001a94","source":{"kind":"arxiv","id":"1405.7797","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.7797","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"arxiv_version","alias_value":"1405.7797v1","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.7797","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"pith_short_12","alias_value":"VPXABJNBT35Z","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VPXABJNBT35ZKK7W","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VPXABJNB","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VPXABJNBT35ZKK7WLKLC5NFBBI","target":"record","payload":{"canonical_record":{"source":{"id":"1405.7797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-30T08:36:43Z","cross_cats_sorted":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"title_canon_sha256":"f9678a79cde864fea7ba497252da8c8236b35f6156e63c24a48df280761758f8","abstract_canon_sha256":"8cf238d5fedcd30de7555296d9a455eb610a02b0c0926cfcb768df4d254cec9d"},"schema_version":"1.0"},"canonical_sha256":"abee00a5a19efb952bf65a962eb4a10a2acea2e1ee73a31b1f967bc668001a94","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:50:49.820084Z","signature_b64":"JQK4uz9qqj7Ayf2auiPDj5N2K0lMDuhhDGB33MlMqVYOS38DNpoe2Bjg3814MOf1slH1DlCC9SjsSCQuD56QAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abee00a5a19efb952bf65a962eb4a10a2acea2e1ee73a31b1f967bc668001a94","last_reissued_at":"2026-05-18T02:50:49.819573Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:50:49.819573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.7797","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":"2026-05-18T02:50:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D4W4EUWbhMSN8j+Wg1eAZZGrKwlSuP2Yd0dbO8QB4AFZzaPPJRnHizqQa8HAgIDxDGP7xQBFWbERSYmCO1Y4Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T22:35:14.258095Z"},"content_sha256":"303a0f145faed0754b259558ada16dc722a80b36015caef152ca3edd12bdb2a3","schema_version":"1.0","event_id":"sha256:303a0f145faed0754b259558ada16dc722a80b36015caef152ca3edd12bdb2a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VPXABJNBT35ZKK7WLKLC5NFBBI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vacuum-UV spectroscopy of interstellar ice analogs. I. Absorption cross-sections of polar-ice molecules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"primary_cat":"astro-ph.SR","authors_text":"G. A. Cruz-Diaz, G. M. Munoz Caro, T.-S. Yih, Y.-J. Chen","submitted_at":"2014-05-30T08:36:43Z","abstract_excerpt":"The VUV absorption cross sections of most molecular solids present in interstellar ice mantles with the exception of H2O, NH3, and CO2 have not been reported yet. Models of ice photoprocessing depend on the VUV absorption cross section of the ice to estimate the penetration depth and radiation dose, and in the past, gas phase cross section values were used as an approximation. We aim to estimate the VUV absorption cross section of molecular ice components. Pure ices composed of CO, H2O, CH3OH, NH3, or H2S were deposited at 8 K. The column density of the ice samples was measured in situ by infr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.7797","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":"2026-05-18T02:50:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4tuHaDyy1WIxy3vwiVLcdy5cDL69Z1NPXhsXXhCQUQF1lXLydyRvLbzD9bGeka4NiwNgoOrueS7g8eKYJdDUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T22:35:14.258469Z"},"content_sha256":"7307eb9cc1a7730f0eafa8395c48fb64ca9667936f5f41fa80f98403871c86fc","schema_version":"1.0","event_id":"sha256:7307eb9cc1a7730f0eafa8395c48fb64ca9667936f5f41fa80f98403871c86fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/bundle.json","state_url":"https://pith.science/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/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":"2026-06-08T22:35:14Z","links":{"resolver":"https://pith.science/pith/VPXABJNBT35ZKK7WLKLC5NFBBI","bundle":"https://pith.science/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/bundle.json","state":"https://pith.science/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VPXABJNBT35ZKK7WLKLC5NFBBI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VPXABJNBT35ZKK7WLKLC5NFBBI","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":"8cf238d5fedcd30de7555296d9a455eb610a02b0c0926cfcb768df4d254cec9d","cross_cats_sorted":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-30T08:36:43Z","title_canon_sha256":"f9678a79cde864fea7ba497252da8c8236b35f6156e63c24a48df280761758f8"},"schema_version":"1.0","source":{"id":"1405.7797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.7797","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"arxiv_version","alias_value":"1405.7797v1","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.7797","created_at":"2026-05-18T02:50:49Z"},{"alias_kind":"pith_short_12","alias_value":"VPXABJNBT35Z","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VPXABJNBT35ZKK7W","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VPXABJNB","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:7307eb9cc1a7730f0eafa8395c48fb64ca9667936f5f41fa80f98403871c86fc","target":"graph","created_at":"2026-05-18T02:50:49Z","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":"The VUV absorption cross sections of most molecular solids present in interstellar ice mantles with the exception of H2O, NH3, and CO2 have not been reported yet. Models of ice photoprocessing depend on the VUV absorption cross section of the ice to estimate the penetration depth and radiation dose, and in the past, gas phase cross section values were used as an approximation. We aim to estimate the VUV absorption cross section of molecular ice components. Pure ices composed of CO, H2O, CH3OH, NH3, or H2S were deposited at 8 K. The column density of the ice samples was measured in situ by infr","authors_text":"G. A. Cruz-Diaz, G. M. Munoz Caro, T.-S. Yih, Y.-J. Chen","cross_cats":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-30T08:36:43Z","title":"Vacuum-UV spectroscopy of interstellar ice analogs. I. Absorption cross-sections of polar-ice molecules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.7797","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":"sha256:303a0f145faed0754b259558ada16dc722a80b36015caef152ca3edd12bdb2a3","target":"record","created_at":"2026-05-18T02:50:49Z","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":"8cf238d5fedcd30de7555296d9a455eb610a02b0c0926cfcb768df4d254cec9d","cross_cats_sorted":["astro-ph.EP","astro-ph.GA","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-30T08:36:43Z","title_canon_sha256":"f9678a79cde864fea7ba497252da8c8236b35f6156e63c24a48df280761758f8"},"schema_version":"1.0","source":{"id":"1405.7797","kind":"arxiv","version":1}},"canonical_sha256":"abee00a5a19efb952bf65a962eb4a10a2acea2e1ee73a31b1f967bc668001a94","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"abee00a5a19efb952bf65a962eb4a10a2acea2e1ee73a31b1f967bc668001a94","first_computed_at":"2026-05-18T02:50:49.819573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:50:49.819573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JQK4uz9qqj7Ayf2auiPDj5N2K0lMDuhhDGB33MlMqVYOS38DNpoe2Bjg3814MOf1slH1DlCC9SjsSCQuD56QAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:50:49.820084Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.7797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:303a0f145faed0754b259558ada16dc722a80b36015caef152ca3edd12bdb2a3","sha256:7307eb9cc1a7730f0eafa8395c48fb64ca9667936f5f41fa80f98403871c86fc"],"state_sha256":"b90109d739254aef07b2fad219d1f9b4c157a8a552d207097ebf1378bda90970"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mpBKXJRb3NpXZqoY81EWXhsfXOUYVfkd2fipL51fJWnOrp5orCHKg1dPkPOkbPSq9NTyl5N20hBRJV4cMtqsCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T22:35:14.260308Z","bundle_sha256":"40b9b90d4e1036b28b5864d59332536c1e23d6b9695d3e49bb7551d41f6b332f"}}