{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:B2BW4QAIOME5ILZWSVLG4PFOVK","short_pith_number":"pith:B2BW4QAI","canonical_record":{"source":{"id":"astro-ph/9907232","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-16T19:16:01Z","cross_cats_sorted":[],"title_canon_sha256":"d1f8c280cd9abded674bff0a4b38f6c3d23e311262b4b42117a547a8a7db8a67","abstract_canon_sha256":"faf00ad509cf04983928722c9d5c9139b3acc4f1a83bfb205b1a225431f548ee"},"schema_version":"1.0"},"canonical_sha256":"0e836e40087309d42f3695566e3caeaa943782f767d0a7a7599e3fab156faddc","source":{"kind":"arxiv","id":"astro-ph/9907232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9907232","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9907232v1","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9907232","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"pith_short_12","alias_value":"B2BW4QAIOME5","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"B2BW4QAIOME5ILZW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"B2BW4QAI","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:B2BW4QAIOME5ILZWSVLG4PFOVK","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9907232","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-16T19:16:01Z","cross_cats_sorted":[],"title_canon_sha256":"d1f8c280cd9abded674bff0a4b38f6c3d23e311262b4b42117a547a8a7db8a67","abstract_canon_sha256":"faf00ad509cf04983928722c9d5c9139b3acc4f1a83bfb205b1a225431f548ee"},"schema_version":"1.0"},"canonical_sha256":"0e836e40087309d42f3695566e3caeaa943782f767d0a7a7599e3fab156faddc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:12.901715Z","signature_b64":"ROl/5MTbXCU2w9PV9kNk/XHZ1ovnKjkaf2nuiCFdpx8Ew+O1bh5tFqoqQMmlSQV9e642V3RjXcs4FHDRyXTpDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e836e40087309d42f3695566e3caeaa943782f767d0a7a7599e3fab156faddc","last_reissued_at":"2026-05-18T01:40:12.901201Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:12.901201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9907232","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":"2026-05-18T01:40:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0kFpCRzI8BMUebc4NJSSo8U92ySbs1PVk70kl4STH4q+jB6leur+TUrNaBt/6kcvQgQplzVwiLfloHDyXlsdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:06:04.873323Z"},"content_sha256":"7f0a9a9af4b2652c29fa7d1bf436c4bfb3a0dc892fc94150c3ef9dd08b0355f6","schema_version":"1.0","event_id":"sha256:7f0a9a9af4b2652c29fa7d1bf436c4bfb3a0dc892fc94150c3ef9dd08b0355f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:B2BW4QAIOME5ILZWSVLG4PFOVK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"H_2 Absorption and Fluorescence for Gamma Ray Bursts in Molecular Clouds","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. T. Draine","submitted_at":"1999-07-16T19:16:01Z","abstract_excerpt":"If a gamma ray burst with strong UV emission occurs in a molecular cloud, there will be observable consequences resulting from excitation of the surrounding H2. The UV pulse from the GRB will pump H2 into vibrationally-excited levels which produce strong absorption at wavelengths < 1650 A. As a result, both the prompt flash and later afterglow will exhibit strong absorption shortward of 1650 A, with specific spectroscopic features. Such a cutoff in the emission from GRB 980329 may already have been observed by Fruchter et al.; if so, GRB 980329 was at redshift 3.0 < z < 4.4 . BVRI photometry o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9907232","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":"2026-05-18T01:40:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WcxyDWINpfl7slSCD7zaVYnY0vv3h3yVix9CKsHIUKKkFgQ/gjcKBeqboqws3EUS4VrUsAILy+BbVjj1BbCPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:06:04.873667Z"},"content_sha256":"76102298f5c87bebd9df7011b4f8cf22e9c43f661b75f858397ec71c07c844b0","schema_version":"1.0","event_id":"sha256:76102298f5c87bebd9df7011b4f8cf22e9c43f661b75f858397ec71c07c844b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/bundle.json","state_url":"https://pith.science/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/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":"2026-06-08T23:06:04Z","links":{"resolver":"https://pith.science/pith/B2BW4QAIOME5ILZWSVLG4PFOVK","bundle":"https://pith.science/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/bundle.json","state":"https://pith.science/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B2BW4QAIOME5ILZWSVLG4PFOVK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:B2BW4QAIOME5ILZWSVLG4PFOVK","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":"faf00ad509cf04983928722c9d5c9139b3acc4f1a83bfb205b1a225431f548ee","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-16T19:16:01Z","title_canon_sha256":"d1f8c280cd9abded674bff0a4b38f6c3d23e311262b4b42117a547a8a7db8a67"},"schema_version":"1.0","source":{"id":"astro-ph/9907232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9907232","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9907232v1","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9907232","created_at":"2026-05-18T01:40:12Z"},{"alias_kind":"pith_short_12","alias_value":"B2BW4QAIOME5","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"B2BW4QAIOME5ILZW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"B2BW4QAI","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:76102298f5c87bebd9df7011b4f8cf22e9c43f661b75f858397ec71c07c844b0","target":"graph","created_at":"2026-05-18T01:40:12Z","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":"If a gamma ray burst with strong UV emission occurs in a molecular cloud, there will be observable consequences resulting from excitation of the surrounding H2. The UV pulse from the GRB will pump H2 into vibrationally-excited levels which produce strong absorption at wavelengths < 1650 A. As a result, both the prompt flash and later afterglow will exhibit strong absorption shortward of 1650 A, with specific spectroscopic features. Such a cutoff in the emission from GRB 980329 may already have been observed by Fruchter et al.; if so, GRB 980329 was at redshift 3.0 < z < 4.4 . BVRI photometry o","authors_text":"B. T. Draine","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-07-16T19:16:01Z","title":"H_2 Absorption and Fluorescence for Gamma Ray Bursts in Molecular Clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9907232","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":"sha256:7f0a9a9af4b2652c29fa7d1bf436c4bfb3a0dc892fc94150c3ef9dd08b0355f6","target":"record","created_at":"2026-05-18T01:40:12Z","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":"faf00ad509cf04983928722c9d5c9139b3acc4f1a83bfb205b1a225431f548ee","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-16T19:16:01Z","title_canon_sha256":"d1f8c280cd9abded674bff0a4b38f6c3d23e311262b4b42117a547a8a7db8a67"},"schema_version":"1.0","source":{"id":"astro-ph/9907232","kind":"arxiv","version":1}},"canonical_sha256":"0e836e40087309d42f3695566e3caeaa943782f767d0a7a7599e3fab156faddc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e836e40087309d42f3695566e3caeaa943782f767d0a7a7599e3fab156faddc","first_computed_at":"2026-05-18T01:40:12.901201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:12.901201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ROl/5MTbXCU2w9PV9kNk/XHZ1ovnKjkaf2nuiCFdpx8Ew+O1bh5tFqoqQMmlSQV9e642V3RjXcs4FHDRyXTpDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:12.901715Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9907232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f0a9a9af4b2652c29fa7d1bf436c4bfb3a0dc892fc94150c3ef9dd08b0355f6","sha256:76102298f5c87bebd9df7011b4f8cf22e9c43f661b75f858397ec71c07c844b0"],"state_sha256":"f461b32f896f202361bd232ed88c019be65aea43afa78634c53669b6f209b5b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ccba7ZD92Obx51fozYiJqxC/GEi+Z9ewLr+cdZ6/3iEzkyYqBZTBeg4B5EvAYmJbRqeDDXC7dLw+pl/segHGBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T23:06:04.875486Z","bundle_sha256":"1cf96cc6a7e9f2ce7263481be13d34cc6675ccdc5a432e2ba3c6d217073ecf0d"}}