{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DUCDHCADQW2LEG3GCOH7GBBO6Y","short_pith_number":"pith:DUCDHCAD","canonical_record":{"source":{"id":"1705.00213","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-29T16:41:53Z","cross_cats_sorted":[],"title_canon_sha256":"5890149571644c53a2f88f0324d3806bb8a3a9fcad48deb4a0a140a7ead76025","abstract_canon_sha256":"6b1dd8f4be359876de25d6bc26e122eaa4c5bad6b36632d40cacd50e15aa87f0"},"schema_version":"1.0"},"canonical_sha256":"1d0433880385b4b21b66138ff3042ef6182c5e6ac4a3304a2a03da67dcbd35c7","source":{"kind":"arxiv","id":"1705.00213","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00213","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00213v1","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00213","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"DUCDHCADQW2L","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DUCDHCADQW2LEG3G","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DUCDHCAD","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DUCDHCADQW2LEG3GCOH7GBBO6Y","target":"record","payload":{"canonical_record":{"source":{"id":"1705.00213","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-29T16:41:53Z","cross_cats_sorted":[],"title_canon_sha256":"5890149571644c53a2f88f0324d3806bb8a3a9fcad48deb4a0a140a7ead76025","abstract_canon_sha256":"6b1dd8f4be359876de25d6bc26e122eaa4c5bad6b36632d40cacd50e15aa87f0"},"schema_version":"1.0"},"canonical_sha256":"1d0433880385b4b21b66138ff3042ef6182c5e6ac4a3304a2a03da67dcbd35c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:02.829624Z","signature_b64":"EWwiMriWr7/e9c/aOyRQzG9+CjeEHj4cBBtNGzRYNstB8JpDbNcwGTW/t/JRPgcE0rZKQoD8C0vSP73ikxE4DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d0433880385b4b21b66138ff3042ef6182c5e6ac4a3304a2a03da67dcbd35c7","last_reissued_at":"2026-05-18T00:38:02.829143Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:02.829143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.00213","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":"2026-05-18T00:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i7zLPc8QbxsERQQF22Cp1DEuzqQ7DrUtV7MyVOacmVMxU3Qqu1ezEcnC3yJuJMov1dZRcuchQEBw9hUEbBjABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:50:55.642836Z"},"content_sha256":"eaf9a4963d0bb702e59badc9921c6acdbbb55fc41ae220f0bb7cb39a04e693ee","schema_version":"1.0","event_id":"sha256:eaf9a4963d0bb702e59badc9921c6acdbbb55fc41ae220f0bb7cb39a04e693ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DUCDHCADQW2LEG3GCOH7GBBO6Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing the universality of the star formation efficiency in dense molecular gas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Roy, B. Ladjelate, H. Chen, J. Braine, N. Schneider, Ph. Andr\\'e, S. Bontemps, V. K\\\"onyves, Y. Gao, Y. Shimajiri","submitted_at":"2017-04-29T16:41:53Z","abstract_excerpt":"Recent studies have suggested that star formation (SF) in dense gas may be governed by essentially the same law in Galactic clouds and external galaxies. This conclusion remains controversial, however, because different tracers have been used to probe the dense gas mass in Galactic and extragalactic studies. We conducted observations of Aquila, Oph., and Orion B in HCN(1-0), HCO$^+$(1-0), and their isotopomers to calibrate the HCN and HCO$^+$ lines used as dense gas tracers in extragalactic studies and to test the possible universality of the star formation efficiency in dense gas, SFE$_{dense"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00213","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":"2026-05-18T00:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8OzNu35Mt4+w0SUBn8q5SiUGFX8WpYoOpuatIUte+oq5A94Qofz/FvCuxDDzSawNq61/nd+zYjyYBDGjnfIECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:50:55.643236Z"},"content_sha256":"42e900d1926b5b7ffefbb2139408a7c4ec23c98819d791866654fed2c8a989c7","schema_version":"1.0","event_id":"sha256:42e900d1926b5b7ffefbb2139408a7c4ec23c98819d791866654fed2c8a989c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/bundle.json","state_url":"https://pith.science/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/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":"2026-06-01T04:50:55Z","links":{"resolver":"https://pith.science/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y","bundle":"https://pith.science/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/bundle.json","state":"https://pith.science/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DUCDHCADQW2LEG3GCOH7GBBO6Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DUCDHCADQW2LEG3GCOH7GBBO6Y","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":"6b1dd8f4be359876de25d6bc26e122eaa4c5bad6b36632d40cacd50e15aa87f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-29T16:41:53Z","title_canon_sha256":"5890149571644c53a2f88f0324d3806bb8a3a9fcad48deb4a0a140a7ead76025"},"schema_version":"1.0","source":{"id":"1705.00213","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00213","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00213v1","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00213","created_at":"2026-05-18T00:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"DUCDHCADQW2L","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DUCDHCADQW2LEG3G","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DUCDHCAD","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:42e900d1926b5b7ffefbb2139408a7c4ec23c98819d791866654fed2c8a989c7","target":"graph","created_at":"2026-05-18T00:38:02Z","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":"Recent studies have suggested that star formation (SF) in dense gas may be governed by essentially the same law in Galactic clouds and external galaxies. This conclusion remains controversial, however, because different tracers have been used to probe the dense gas mass in Galactic and extragalactic studies. We conducted observations of Aquila, Oph., and Orion B in HCN(1-0), HCO$^+$(1-0), and their isotopomers to calibrate the HCN and HCO$^+$ lines used as dense gas tracers in extragalactic studies and to test the possible universality of the star formation efficiency in dense gas, SFE$_{dense","authors_text":"A. Roy, B. Ladjelate, H. Chen, J. Braine, N. Schneider, Ph. Andr\\'e, S. Bontemps, V. K\\\"onyves, Y. Gao, Y. Shimajiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-29T16:41:53Z","title":"Testing the universality of the star formation efficiency in dense molecular gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00213","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:eaf9a4963d0bb702e59badc9921c6acdbbb55fc41ae220f0bb7cb39a04e693ee","target":"record","created_at":"2026-05-18T00:38:02Z","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":"6b1dd8f4be359876de25d6bc26e122eaa4c5bad6b36632d40cacd50e15aa87f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-29T16:41:53Z","title_canon_sha256":"5890149571644c53a2f88f0324d3806bb8a3a9fcad48deb4a0a140a7ead76025"},"schema_version":"1.0","source":{"id":"1705.00213","kind":"arxiv","version":1}},"canonical_sha256":"1d0433880385b4b21b66138ff3042ef6182c5e6ac4a3304a2a03da67dcbd35c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d0433880385b4b21b66138ff3042ef6182c5e6ac4a3304a2a03da67dcbd35c7","first_computed_at":"2026-05-18T00:38:02.829143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:02.829143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EWwiMriWr7/e9c/aOyRQzG9+CjeEHj4cBBtNGzRYNstB8JpDbNcwGTW/t/JRPgcE0rZKQoD8C0vSP73ikxE4DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:02.829624Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.00213","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaf9a4963d0bb702e59badc9921c6acdbbb55fc41ae220f0bb7cb39a04e693ee","sha256:42e900d1926b5b7ffefbb2139408a7c4ec23c98819d791866654fed2c8a989c7"],"state_sha256":"3744b01c0acae6e2b8ff41f4478ebac30bdfbe758427ad91432cb47f25482ff6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idDjvXeTWSn4v8MosRfIp+12A9ymb8R8p4yTM3mVscBIiayHJShnIVJX1u/XLd0Akq26LwxeJzW8rfzya+rGCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T04:50:55.645577Z","bundle_sha256":"f5c7a429afcb6c857ec62db2214975550ffcdebdd92c1dea8dd97b6cf981eb2a"}}