{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:7GPLGAODIAKLXSNLBPYBPJLHWC","short_pith_number":"pith:7GPLGAOD","canonical_record":{"source":{"id":"1905.08030","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-20T12:25:49Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"1fc3c53a4ed0f79d418d388d80d8468d73ee102899061fd8361f1287ada0eb26","abstract_canon_sha256":"709ca7691acef0d01908148e98bad9146a021a13a6ffa6202b636ec804ce033d"},"schema_version":"1.0"},"canonical_sha256":"f99eb301c34014bbc9ab0bf017a567b093c655acbef1f57a5bcaa657395ba7ff","source":{"kind":"arxiv","id":"1905.08030","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.08030","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"arxiv_version","alias_value":"1905.08030v1","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08030","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"pith_short_12","alias_value":"7GPLGAODIAKL","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"7GPLGAODIAKLXSNL","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"7GPLGAOD","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:7GPLGAODIAKLXSNLBPYBPJLHWC","target":"record","payload":{"canonical_record":{"source":{"id":"1905.08030","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-20T12:25:49Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"1fc3c53a4ed0f79d418d388d80d8468d73ee102899061fd8361f1287ada0eb26","abstract_canon_sha256":"709ca7691acef0d01908148e98bad9146a021a13a6ffa6202b636ec804ce033d"},"schema_version":"1.0"},"canonical_sha256":"f99eb301c34014bbc9ab0bf017a567b093c655acbef1f57a5bcaa657395ba7ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:42.081221Z","signature_b64":"BKkE/hhEPpNd6LveAkqtHDdwTt7WHaRW7t+krICtj2pyGrnA4ck6PFiuOcbl36gyfZHIOOzo+3IvEdcQXORADw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f99eb301c34014bbc9ab0bf017a567b093c655acbef1f57a5bcaa657395ba7ff","last_reissued_at":"2026-05-17T23:41:42.080655Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:42.080655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.08030","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":"2026-05-17T23:41:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/1H5m/GTioQFQS5xmUM6x75vTtWgqVN7fqQmB27Wlma6CO1EgckOJ2v2TqpKdi/PHfmNj4GLOYCtDXMKsO0rAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:10:11.973308Z"},"content_sha256":"596778fe87c7571c703136074680c28ffcb890c6f0fa73db7c458e5a03b825d7","schema_version":"1.0","event_id":"sha256:596778fe87c7571c703136074680c28ffcb890c6f0fa73db7c458e5a03b825d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:7GPLGAODIAKLXSNLBPYBPJLHWC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The effects of ionization feedback on star formation: A case study of the M16 H II region","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Annie Zavagno, Bing-Gang Ju, Chang-chun Ning, Chuan-Peng Zhang, Guo-Yin Zhang, Jinghua Yuan, Jin-Long Xu, Naiping Yu, Si-Ju Zhang, Xiao-Lan Liu, Ye Xu","submitted_at":"2019-05-20T12:25:49Z","abstract_excerpt":"We aim to investigate the impact of the ionized radiation from the M16 HII region on the surrounding molecular cloud and on its hosted star formation. To present comprehensive multi-wavelength observations towards the M16 HII region, we used new CO data and existing infrared, optical, and submillimeter data. The 12CO J=1-0, 13CO J=1-0, and C18O J=1-0 data were obtained with the Purple Mountain Observatory (PMO) 13.7m radio telescope. To trace massive clumps and extract young stellar objects (YSOs) associated with the M16 HII region, we used the ATLASGAL and GLIMPSE I catalogs, respectively. Fr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08030","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":"2026-05-17T23:41:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYfKCfyofb6q5sikpVlmVq0qxsquj29MerGw3hj2aDgtQsC+LHv5a15blFYE50vjWBj72yFJj54sDP9V9St0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:10:11.973696Z"},"content_sha256":"ad7a2fe865c64a40d63fae964cc0e0f5feb03191381181bc5643c899bb5849cb","schema_version":"1.0","event_id":"sha256:ad7a2fe865c64a40d63fae964cc0e0f5feb03191381181bc5643c899bb5849cb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/bundle.json","state_url":"https://pith.science/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/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":"2026-05-31T06:10:11Z","links":{"resolver":"https://pith.science/pith/7GPLGAODIAKLXSNLBPYBPJLHWC","bundle":"https://pith.science/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/bundle.json","state":"https://pith.science/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7GPLGAODIAKLXSNLBPYBPJLHWC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:7GPLGAODIAKLXSNLBPYBPJLHWC","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":"709ca7691acef0d01908148e98bad9146a021a13a6ffa6202b636ec804ce033d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-20T12:25:49Z","title_canon_sha256":"1fc3c53a4ed0f79d418d388d80d8468d73ee102899061fd8361f1287ada0eb26"},"schema_version":"1.0","source":{"id":"1905.08030","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.08030","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"arxiv_version","alias_value":"1905.08030v1","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08030","created_at":"2026-05-17T23:41:42Z"},{"alias_kind":"pith_short_12","alias_value":"7GPLGAODIAKL","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"7GPLGAODIAKLXSNL","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"7GPLGAOD","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:ad7a2fe865c64a40d63fae964cc0e0f5feb03191381181bc5643c899bb5849cb","target":"graph","created_at":"2026-05-17T23:41:42Z","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 aim to investigate the impact of the ionized radiation from the M16 HII region on the surrounding molecular cloud and on its hosted star formation. To present comprehensive multi-wavelength observations towards the M16 HII region, we used new CO data and existing infrared, optical, and submillimeter data. The 12CO J=1-0, 13CO J=1-0, and C18O J=1-0 data were obtained with the Purple Mountain Observatory (PMO) 13.7m radio telescope. To trace massive clumps and extract young stellar objects (YSOs) associated with the M16 HII region, we used the ATLASGAL and GLIMPSE I catalogs, respectively. Fr","authors_text":"Annie Zavagno, Bing-Gang Ju, Chang-chun Ning, Chuan-Peng Zhang, Guo-Yin Zhang, Jinghua Yuan, Jin-Long Xu, Naiping Yu, Si-Ju Zhang, Xiao-Lan Liu, Ye Xu","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-20T12:25:49Z","title":"The effects of ionization feedback on star formation: A case study of the M16 H II region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08030","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":"sha256:596778fe87c7571c703136074680c28ffcb890c6f0fa73db7c458e5a03b825d7","target":"record","created_at":"2026-05-17T23:41:42Z","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":"709ca7691acef0d01908148e98bad9146a021a13a6ffa6202b636ec804ce033d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-20T12:25:49Z","title_canon_sha256":"1fc3c53a4ed0f79d418d388d80d8468d73ee102899061fd8361f1287ada0eb26"},"schema_version":"1.0","source":{"id":"1905.08030","kind":"arxiv","version":1}},"canonical_sha256":"f99eb301c34014bbc9ab0bf017a567b093c655acbef1f57a5bcaa657395ba7ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f99eb301c34014bbc9ab0bf017a567b093c655acbef1f57a5bcaa657395ba7ff","first_computed_at":"2026-05-17T23:41:42.080655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:42.080655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BKkE/hhEPpNd6LveAkqtHDdwTt7WHaRW7t+krICtj2pyGrnA4ck6PFiuOcbl36gyfZHIOOzo+3IvEdcQXORADw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:42.081221Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.08030","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:596778fe87c7571c703136074680c28ffcb890c6f0fa73db7c458e5a03b825d7","sha256:ad7a2fe865c64a40d63fae964cc0e0f5feb03191381181bc5643c899bb5849cb"],"state_sha256":"d3c80233fbdc9c46679754f92c1cf3e16c66734d74a1c98b1dcab1b526c65278"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BmmS3rbnGCcd112OX+vHtk84gZ5CNBruyNv2ZNBgZW8PzGMXYHEhHlCM9ouFknPyB3fwounlVzqHCyvFsVq+Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T06:10:11.975713Z","bundle_sha256":"d417fb08c67728b1b2451504233609b0154f33dbf64f75790e801e38fde51e50"}}