{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:TNZ2BSQ2AKJ437CR2JGPPNLV7S","short_pith_number":"pith:TNZ2BSQ2","canonical_record":{"source":{"id":"1111.3674","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-11-15T22:02:33Z","cross_cats_sorted":[],"title_canon_sha256":"5d64f4c8a0d68439330f08afe61d2304919445bb5f81858698d0d92449f10248","abstract_canon_sha256":"627958d852552ad1abf5b6ae351167302f39f0c973e283ec103ea4167fc51139"},"schema_version":"1.0"},"canonical_sha256":"9b73a0ca1a0293cdfc51d24cf7b575fc9a563288810b462278041b314c27bef9","source":{"kind":"arxiv","id":"1111.3674","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.3674","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"1111.3674v1","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3674","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"TNZ2BSQ2AKJ4","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"TNZ2BSQ2AKJ437CR","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"TNZ2BSQ2","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:TNZ2BSQ2AKJ437CR2JGPPNLV7S","target":"record","payload":{"canonical_record":{"source":{"id":"1111.3674","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-11-15T22:02:33Z","cross_cats_sorted":[],"title_canon_sha256":"5d64f4c8a0d68439330f08afe61d2304919445bb5f81858698d0d92449f10248","abstract_canon_sha256":"627958d852552ad1abf5b6ae351167302f39f0c973e283ec103ea4167fc51139"},"schema_version":"1.0"},"canonical_sha256":"9b73a0ca1a0293cdfc51d24cf7b575fc9a563288810b462278041b314c27bef9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:32.712544Z","signature_b64":"ZWk/7cd+qphSjBLau4dY8r8d1FIU4t4hGuii+XNJ+yBAZ/zoK9J3OjEdA/Ft0YOTgz+z7DMpGXkXWG1pz/PlAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b73a0ca1a0293cdfc51d24cf7b575fc9a563288810b462278041b314c27bef9","last_reissued_at":"2026-05-18T01:59:32.711871Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:32.711871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.3674","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":"2026-05-18T01:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hq5Z1vb2dodv5cgJHij5WNwN/u2wqJs3EvDpnqBwSdjCWw2uD25uhXJXotGLtyi4X0mFjZdtiA95dbDAeCZ/AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T19:58:52.267907Z"},"content_sha256":"16776d1cc759be50f00160de837ffc4c9ade9a91feb87d853b77968d7c5282db","schema_version":"1.0","event_id":"sha256:16776d1cc759be50f00160de837ffc4c9ade9a91feb87d853b77968d7c5282db"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:TNZ2BSQ2AKJ437CR2JGPPNLV7S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interstellar H I and H_2 in the Magellanic Clouds: An Expanded Sample Based on UV Absorption-Line Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(2) University of Illinois at Urbana/Champaign), Daniel E. Welty (1), Rui Xue (2), Tony Wong (2) ((1) University of Chicago","submitted_at":"2011-11-15T22:02:33Z","abstract_excerpt":"We have determined column densities of H I and/or H_2 for sight lines in the Magellanic Clouds from archival HST and FUSE spectra of H I Lyman-alpha and H_2 Lyman-band absorption. Together with some similar data from the literature, we now have absorption-based N(H I) and/or N(H_2) for 285 LMC and SMC sight lines (114 with a detection or limit for both species) -- enabling more extensive, direct, and accurate determinations of molecular fractions, gas-to-dust ratios, and elemental depletions in these two nearby, low-metallicity galaxies. For sight lines where the N(H I) estimated from 21 cm em"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3674","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":"2026-05-18T01:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BAHCdxwUS9X7hnZrHYZvTAFElrBPiCaTcHTPVkir3TLnJDeKCyAnEzJaQ1VKj6IK3PKmzvo2NS0QoU6rMbgmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T19:58:52.268246Z"},"content_sha256":"daeb825c5dc124c6152278d26da564afff766316d49919f6c3026c016495f46a","schema_version":"1.0","event_id":"sha256:daeb825c5dc124c6152278d26da564afff766316d49919f6c3026c016495f46a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/bundle.json","state_url":"https://pith.science/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/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":"2026-06-22T19:58:52Z","links":{"resolver":"https://pith.science/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S","bundle":"https://pith.science/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/bundle.json","state":"https://pith.science/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TNZ2BSQ2AKJ437CR2JGPPNLV7S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:TNZ2BSQ2AKJ437CR2JGPPNLV7S","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":"627958d852552ad1abf5b6ae351167302f39f0c973e283ec103ea4167fc51139","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-11-15T22:02:33Z","title_canon_sha256":"5d64f4c8a0d68439330f08afe61d2304919445bb5f81858698d0d92449f10248"},"schema_version":"1.0","source":{"id":"1111.3674","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.3674","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"1111.3674v1","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3674","created_at":"2026-05-18T01:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"TNZ2BSQ2AKJ4","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"TNZ2BSQ2AKJ437CR","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"TNZ2BSQ2","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:daeb825c5dc124c6152278d26da564afff766316d49919f6c3026c016495f46a","target":"graph","created_at":"2026-05-18T01:59:32Z","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 determined column densities of H I and/or H_2 for sight lines in the Magellanic Clouds from archival HST and FUSE spectra of H I Lyman-alpha and H_2 Lyman-band absorption. Together with some similar data from the literature, we now have absorption-based N(H I) and/or N(H_2) for 285 LMC and SMC sight lines (114 with a detection or limit for both species) -- enabling more extensive, direct, and accurate determinations of molecular fractions, gas-to-dust ratios, and elemental depletions in these two nearby, low-metallicity galaxies. For sight lines where the N(H I) estimated from 21 cm em","authors_text":"(2) University of Illinois at Urbana/Champaign), Daniel E. Welty (1), Rui Xue (2), Tony Wong (2) ((1) University of Chicago","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-11-15T22:02:33Z","title":"Interstellar H I and H_2 in the Magellanic Clouds: An Expanded Sample Based on UV Absorption-Line Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3674","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":"sha256:16776d1cc759be50f00160de837ffc4c9ade9a91feb87d853b77968d7c5282db","target":"record","created_at":"2026-05-18T01:59:32Z","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":"627958d852552ad1abf5b6ae351167302f39f0c973e283ec103ea4167fc51139","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-11-15T22:02:33Z","title_canon_sha256":"5d64f4c8a0d68439330f08afe61d2304919445bb5f81858698d0d92449f10248"},"schema_version":"1.0","source":{"id":"1111.3674","kind":"arxiv","version":1}},"canonical_sha256":"9b73a0ca1a0293cdfc51d24cf7b575fc9a563288810b462278041b314c27bef9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b73a0ca1a0293cdfc51d24cf7b575fc9a563288810b462278041b314c27bef9","first_computed_at":"2026-05-18T01:59:32.711871Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:32.711871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZWk/7cd+qphSjBLau4dY8r8d1FIU4t4hGuii+XNJ+yBAZ/zoK9J3OjEdA/Ft0YOTgz+z7DMpGXkXWG1pz/PlAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:32.712544Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.3674","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16776d1cc759be50f00160de837ffc4c9ade9a91feb87d853b77968d7c5282db","sha256:daeb825c5dc124c6152278d26da564afff766316d49919f6c3026c016495f46a"],"state_sha256":"9b400e67fa50e40d53c2740748c8ee7e15cd758089a34b0a36daf6af29fd543f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TESNTZM1RyeVnJE5UwaO0FtQGww7IZilYtSrvL077IfUXmsdRcglT21BChDHDDengOO/GShW402nAoRR4EIIAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T19:58:52.270147Z","bundle_sha256":"66a13c9ef18c7e45c1269b063917661f00ceef56f14a1f4adc7c1362cf91d0df"}}