{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AOEK4LHAGVPF5SDSONMXTHGTNT","short_pith_number":"pith:AOEK4LHA","canonical_record":{"source":{"id":"1801.04440","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-13T13:46:59Z","cross_cats_sorted":[],"title_canon_sha256":"8be81990f3e82e8561253336fefad2a52fafea2a52012efbb28fe06d1dc320dc","abstract_canon_sha256":"85b05143a486bedc58486f93e8ba8eb75f578fce3ec31e7b6c6e57e7ce649af4"},"schema_version":"1.0"},"canonical_sha256":"0388ae2ce0355e5ec8727359799cd36cd89af23048747f5f867effe57bba9941","source":{"kind":"arxiv","id":"1801.04440","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04440","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04440v1","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04440","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"AOEK4LHAGVPF","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AOEK4LHAGVPF5SDS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AOEK4LHA","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AOEK4LHAGVPF5SDSONMXTHGTNT","target":"record","payload":{"canonical_record":{"source":{"id":"1801.04440","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-13T13:46:59Z","cross_cats_sorted":[],"title_canon_sha256":"8be81990f3e82e8561253336fefad2a52fafea2a52012efbb28fe06d1dc320dc","abstract_canon_sha256":"85b05143a486bedc58486f93e8ba8eb75f578fce3ec31e7b6c6e57e7ce649af4"},"schema_version":"1.0"},"canonical_sha256":"0388ae2ce0355e5ec8727359799cd36cd89af23048747f5f867effe57bba9941","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:15.580517Z","signature_b64":"soNmb4AStBYuV9tBe14zoocx7jz8u21HtAxiWTAdkhWdMOFVsCabNH9Vkj9aDpX0KorvTlknBZbrgWttP75wCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0388ae2ce0355e5ec8727359799cd36cd89af23048747f5f867effe57bba9941","last_reissued_at":"2026-05-18T00:08:15.579963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:15.579963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.04440","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":"2026-05-18T00:08:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x9w9Tsm/GFiUgSsit5HOM/uuoI1/2LHSz6/O15LZhTlgHK706JYpYwERT1XnGvNQLJ4+FJk6eGWofmONVDY5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T11:21:32.130017Z"},"content_sha256":"1ca8e029562b0dc8a5ab5b788004b5a54c3147f627c68b918df2e4d936aa7699","schema_version":"1.0","event_id":"sha256:1ca8e029562b0dc8a5ab5b788004b5a54c3147f627c68b918df2e4d936aa7699"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AOEK4LHAGVPF5SDSONMXTHGTNT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Global photometric analysis of galactic HII regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anastasiia Topchieva, Dmitri Wiebe, Maria S. Kirsanova","submitted_at":"2018-01-13T13:46:59Z","abstract_excerpt":"Total infrared fluxes are estimated for 99 HII regions around massive stars. The following wavebands have been used for the analysis: 8 and 24 $\\mu$m, based on data from Spitzer space telescope (IRAC and MIPS, respectively); 70, 160, 250, 350, and 500 $\\mu$m, based on data from Herschel Space Observatory (PACS and SPIRE). The estimated fluxes are used to evaluate the mass fraction of polycyclic aromatic hydrocarbons ($q_{\\rm PAH}$) and the intensity of the ultraviolet emission in the studied objects. It is shown that the PAH mass fraction, $q_{\\rm PAH}$, is much lower in these objects than the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04440","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":"2026-05-18T00:08:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BBJ9i01fucqICuwJFFcVMuDZzcCHKGvb0SlfpUQgj4bRZ3Hq5wUjrLSyoKrqdPwc/Nlvh0GD2VKQYBop7RMkBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T11:21:32.130385Z"},"content_sha256":"c51397666310ea1f548f9a876f25c50de6ecab23359fbed81dccb828a7682a27","schema_version":"1.0","event_id":"sha256:c51397666310ea1f548f9a876f25c50de6ecab23359fbed81dccb828a7682a27"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/bundle.json","state_url":"https://pith.science/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/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":"2026-06-08T11:21:32Z","links":{"resolver":"https://pith.science/pith/AOEK4LHAGVPF5SDSONMXTHGTNT","bundle":"https://pith.science/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/bundle.json","state":"https://pith.science/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AOEK4LHAGVPF5SDSONMXTHGTNT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AOEK4LHAGVPF5SDSONMXTHGTNT","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":"85b05143a486bedc58486f93e8ba8eb75f578fce3ec31e7b6c6e57e7ce649af4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-13T13:46:59Z","title_canon_sha256":"8be81990f3e82e8561253336fefad2a52fafea2a52012efbb28fe06d1dc320dc"},"schema_version":"1.0","source":{"id":"1801.04440","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04440","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04440v1","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04440","created_at":"2026-05-18T00:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"AOEK4LHAGVPF","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AOEK4LHAGVPF5SDS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AOEK4LHA","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:c51397666310ea1f548f9a876f25c50de6ecab23359fbed81dccb828a7682a27","target":"graph","created_at":"2026-05-18T00:08:15Z","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":"Total infrared fluxes are estimated for 99 HII regions around massive stars. The following wavebands have been used for the analysis: 8 and 24 $\\mu$m, based on data from Spitzer space telescope (IRAC and MIPS, respectively); 70, 160, 250, 350, and 500 $\\mu$m, based on data from Herschel Space Observatory (PACS and SPIRE). The estimated fluxes are used to evaluate the mass fraction of polycyclic aromatic hydrocarbons ($q_{\\rm PAH}$) and the intensity of the ultraviolet emission in the studied objects. It is shown that the PAH mass fraction, $q_{\\rm PAH}$, is much lower in these objects than the","authors_text":"Anastasiia Topchieva, Dmitri Wiebe, Maria S. Kirsanova","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-13T13:46:59Z","title":"Global photometric analysis of galactic HII regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04440","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":"sha256:1ca8e029562b0dc8a5ab5b788004b5a54c3147f627c68b918df2e4d936aa7699","target":"record","created_at":"2026-05-18T00:08:15Z","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":"85b05143a486bedc58486f93e8ba8eb75f578fce3ec31e7b6c6e57e7ce649af4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-13T13:46:59Z","title_canon_sha256":"8be81990f3e82e8561253336fefad2a52fafea2a52012efbb28fe06d1dc320dc"},"schema_version":"1.0","source":{"id":"1801.04440","kind":"arxiv","version":1}},"canonical_sha256":"0388ae2ce0355e5ec8727359799cd36cd89af23048747f5f867effe57bba9941","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0388ae2ce0355e5ec8727359799cd36cd89af23048747f5f867effe57bba9941","first_computed_at":"2026-05-18T00:08:15.579963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:15.579963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"soNmb4AStBYuV9tBe14zoocx7jz8u21HtAxiWTAdkhWdMOFVsCabNH9Vkj9aDpX0KorvTlknBZbrgWttP75wCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:15.580517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.04440","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ca8e029562b0dc8a5ab5b788004b5a54c3147f627c68b918df2e4d936aa7699","sha256:c51397666310ea1f548f9a876f25c50de6ecab23359fbed81dccb828a7682a27"],"state_sha256":"fd616bca4fc23bfa198e7bddfcba7186c1b629b2446278f49450ec698ac9dde4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7adc2j5li3Pkme7ujSHo+OncuqTXxFg/MXvUZyQ2YNquH2zzNtlPe+Lamf/lWCg1wDbsrEw0XIl+56SvJXAvCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T11:21:32.132251Z","bundle_sha256":"9b69f05748db2ca852e810293b9926f1c5fd7d0dfac4723aae5ee00ba9b1a226"}}