{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:L3L5N2VKGL67UZI3GNFDRAOTYZ","short_pith_number":"pith:L3L5N2VK","canonical_record":{"source":{"id":"1310.4493","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-16T19:58:06Z","cross_cats_sorted":[],"title_canon_sha256":"be4d2b7087e32cbb8d13d5425838a9c171768c902e30e9a7d80ecdd2fac85b09","abstract_canon_sha256":"27ad62fca19b8f1491cf35e0bdf8d259f29f695832805874d139dddcb4fde59b"},"schema_version":"1.0"},"canonical_sha256":"5ed7d6eaaa32fdfa651b334a3881d3c6536398e61eca2ec8a1df9a54607fd2b4","source":{"kind":"arxiv","id":"1310.4493","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4493","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4493v1","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4493","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"pith_short_12","alias_value":"L3L5N2VKGL67","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"L3L5N2VKGL67UZI3","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"L3L5N2VK","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:L3L5N2VKGL67UZI3GNFDRAOTYZ","target":"record","payload":{"canonical_record":{"source":{"id":"1310.4493","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-16T19:58:06Z","cross_cats_sorted":[],"title_canon_sha256":"be4d2b7087e32cbb8d13d5425838a9c171768c902e30e9a7d80ecdd2fac85b09","abstract_canon_sha256":"27ad62fca19b8f1491cf35e0bdf8d259f29f695832805874d139dddcb4fde59b"},"schema_version":"1.0"},"canonical_sha256":"5ed7d6eaaa32fdfa651b334a3881d3c6536398e61eca2ec8a1df9a54607fd2b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:58.716214Z","signature_b64":"4983F8AVSKD2k37CcODCIOtm21Fb7AzsqWzivDo49sFFIev4EasrL9Nnu7QnyXyo5iXSgJfJSeBeJd46BXtxBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ed7d6eaaa32fdfa651b334a3881d3c6536398e61eca2ec8a1df9a54607fd2b4","last_reissued_at":"2026-05-18T01:46:58.715659Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:58.715659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.4493","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":"2026-05-18T01:46:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"67OpNahDqB1g8A3bI443Y3MKr86/93T1zh4xBLnXy8PEece5DwcNwUlougj5F3ScIiEnvzwPhlDYSWfkWo7cBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:54:32.641977Z"},"content_sha256":"2d74add42d55254151c7033f3cd268f223d5db54cbe810f58973497e8ed5240b","schema_version":"1.0","event_id":"sha256:2d74add42d55254151c7033f3cd268f223d5db54cbe810f58973497e8ed5240b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:L3L5N2VKGL67UZI3GNFDRAOTYZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Molecular Gas Properties of the Giant Molecular Cloud Complexes in the Arms and Inter-arms of the Spiral Galaxy NGC 6946","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Estelle Bayet, Martin Bureau, Selcuk Topal, Timothy A. Davis, Wilfred Walsh","submitted_at":"2013-10-16T19:58:06Z","abstract_excerpt":"Combining observations of multiple CO lines with radiative transfer modeling is a very powerful tool to investigate the physical properties of the molecular gas in galaxies. Using new observations as well as literature data, we provide the most complete CO ladders ever generated for eight star-forming regions in the spiral arms and inter-arms of the spiral galaxy NGC 6946, with observations of the CO(1-0), CO(2-1), CO(3-2), CO(4-3), CO(6-5), 13CO(1-0) and 13CO(2-1) transitions. For each region, we use the large velocity gradient assumption to derive beam-averaged molecular gas physical propert"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4493","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":"2026-05-18T01:46:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NsrDbiWZ5Pdl/CPWB9mZE0s+uzabWOWxfVdq/SZh+lcF0vvpFEKLjLYwjECslLdgpY7iahkTUFwML0pNHfDUCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:54:32.642665Z"},"content_sha256":"87867f9e41277c322d3ba44837f93766ebbafa8aa0908b9192fba9932c2e9aba","schema_version":"1.0","event_id":"sha256:87867f9e41277c322d3ba44837f93766ebbafa8aa0908b9192fba9932c2e9aba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/bundle.json","state_url":"https://pith.science/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/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":"2026-05-31T10:54:32Z","links":{"resolver":"https://pith.science/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ","bundle":"https://pith.science/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/bundle.json","state":"https://pith.science/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L3L5N2VKGL67UZI3GNFDRAOTYZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:L3L5N2VKGL67UZI3GNFDRAOTYZ","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":"27ad62fca19b8f1491cf35e0bdf8d259f29f695832805874d139dddcb4fde59b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-16T19:58:06Z","title_canon_sha256":"be4d2b7087e32cbb8d13d5425838a9c171768c902e30e9a7d80ecdd2fac85b09"},"schema_version":"1.0","source":{"id":"1310.4493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4493","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4493v1","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4493","created_at":"2026-05-18T01:46:58Z"},{"alias_kind":"pith_short_12","alias_value":"L3L5N2VKGL67","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"L3L5N2VKGL67UZI3","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"L3L5N2VK","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:87867f9e41277c322d3ba44837f93766ebbafa8aa0908b9192fba9932c2e9aba","target":"graph","created_at":"2026-05-18T01:46:58Z","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":"Combining observations of multiple CO lines with radiative transfer modeling is a very powerful tool to investigate the physical properties of the molecular gas in galaxies. Using new observations as well as literature data, we provide the most complete CO ladders ever generated for eight star-forming regions in the spiral arms and inter-arms of the spiral galaxy NGC 6946, with observations of the CO(1-0), CO(2-1), CO(3-2), CO(4-3), CO(6-5), 13CO(1-0) and 13CO(2-1) transitions. For each region, we use the large velocity gradient assumption to derive beam-averaged molecular gas physical propert","authors_text":"Estelle Bayet, Martin Bureau, Selcuk Topal, Timothy A. Davis, Wilfred Walsh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-16T19:58:06Z","title":"Molecular Gas Properties of the Giant Molecular Cloud Complexes in the Arms and Inter-arms of the Spiral Galaxy NGC 6946"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4493","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":"sha256:2d74add42d55254151c7033f3cd268f223d5db54cbe810f58973497e8ed5240b","target":"record","created_at":"2026-05-18T01:46:58Z","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":"27ad62fca19b8f1491cf35e0bdf8d259f29f695832805874d139dddcb4fde59b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-16T19:58:06Z","title_canon_sha256":"be4d2b7087e32cbb8d13d5425838a9c171768c902e30e9a7d80ecdd2fac85b09"},"schema_version":"1.0","source":{"id":"1310.4493","kind":"arxiv","version":1}},"canonical_sha256":"5ed7d6eaaa32fdfa651b334a3881d3c6536398e61eca2ec8a1df9a54607fd2b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ed7d6eaaa32fdfa651b334a3881d3c6536398e61eca2ec8a1df9a54607fd2b4","first_computed_at":"2026-05-18T01:46:58.715659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:58.715659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4983F8AVSKD2k37CcODCIOtm21Fb7AzsqWzivDo49sFFIev4EasrL9Nnu7QnyXyo5iXSgJfJSeBeJd46BXtxBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:58.716214Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.4493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d74add42d55254151c7033f3cd268f223d5db54cbe810f58973497e8ed5240b","sha256:87867f9e41277c322d3ba44837f93766ebbafa8aa0908b9192fba9932c2e9aba"],"state_sha256":"2f902f8326d7d1aa3c62743a03947310964422768174279a4dbe7a42f00e065d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mx9ZpflMoEgg88n20JVBXTYTAafwAKXT0zWU1gg/JZtVY0Ce0luqA4OuSPl17V9q5TyFaormtyBQnF53RIStAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:54:32.646340Z","bundle_sha256":"4b7e2eddb7f6f1b43a804ffe4e6393089efb51213dc42c11145d4c980be39dfc"}}