{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FSQLI3RZSPMSILZZ2BJGYUUCZV","short_pith_number":"pith:FSQLI3RZ","canonical_record":{"source":{"id":"1805.09911","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-24T21:41:47Z","cross_cats_sorted":[],"title_canon_sha256":"59178eb178e82c0bea00f8d49e78d8d7c6639c9bf773cd8cdfca1ccfae1f33f1","abstract_canon_sha256":"76875c9a5a50a02e9aa1b3781e6019db9aaa7b9c38d1304f95ac3a4843c62f66"},"schema_version":"1.0"},"canonical_sha256":"2ca0b46e3993d9242f39d0526c5282cd642126c0c435534d5d7414126da0b3e8","source":{"kind":"arxiv","id":"1805.09911","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09911","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09911v1","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09911","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"pith_short_12","alias_value":"FSQLI3RZSPMS","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FSQLI3RZSPMSILZZ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FSQLI3RZ","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FSQLI3RZSPMSILZZ2BJGYUUCZV","target":"record","payload":{"canonical_record":{"source":{"id":"1805.09911","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-24T21:41:47Z","cross_cats_sorted":[],"title_canon_sha256":"59178eb178e82c0bea00f8d49e78d8d7c6639c9bf773cd8cdfca1ccfae1f33f1","abstract_canon_sha256":"76875c9a5a50a02e9aa1b3781e6019db9aaa7b9c38d1304f95ac3a4843c62f66"},"schema_version":"1.0"},"canonical_sha256":"2ca0b46e3993d9242f39d0526c5282cd642126c0c435534d5d7414126da0b3e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:58.811246Z","signature_b64":"SmbxnJ2CJi3h53kpoVshipeSAuNMtD+Fcz6MLbWu8VyDV0V1UhHUhRIDskC96K8vqxmsLRnep0pvu7Ji0iVNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ca0b46e3993d9242f39d0526c5282cd642126c0c435534d5d7414126da0b3e8","last_reissued_at":"2026-05-18T00:14:58.810672Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:58.810672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.09911","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":"2026-05-18T00:14:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XWqDsT+tz7sky+FLPTt03XbojJSvwmUvptzVZurKzW2Wd/sCLvLGvN+MpveSMMD77gH1XJz1IGCWK5eLe5C4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:02:24.783705Z"},"content_sha256":"66e55d1e09db9eaf4f3738fa1f239313e4c50e19d1ae84457fffec8a1e849efd","schema_version":"1.0","event_id":"sha256:66e55d1e09db9eaf4f3738fa1f239313e4c50e19d1ae84457fffec8a1e849efd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FSQLI3RZSPMSILZZ2BJGYUUCZV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Star Formation Rate Distribution in the Galaxy NGC 1232","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alberto Rodr\\'iguez-Ardila, Alexandre Ara\\'ujo de Souza, Luciano Fraga, Lucimara P. Martins","submitted_at":"2018-05-24T21:41:47Z","abstract_excerpt":"NGC 1232 is a face-on spiral galaxy and a great laboratory for the study of star-formation due to its proximity. We obtained high spatial resolution H{\\alpha} images of this galaxy, with adaptive optics, using the SAM instrument at the SOAR telescope, and used these images to study its H ii regions. These observations allowed us to produce the most complete H ii region catalog for it to date, with a total of 976 sources. This doubles the number of H ii regions previously found for this object. We used these data to construct the H ii luminosity function, and obtained a power-law index lower th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09911","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":"2026-05-18T00:14:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7TVVwZ3ip9LHybiT5nHif4O6E7FzAdbPZqFOn8EvTG11kL4iDD5IgHfiI5pqZ1yrl4NDqSqoHJjkTiRzrFlFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:02:24.784436Z"},"content_sha256":"f1ab045c93e79455d86a11e8d1dc57f7c08129bd5fc9c6996e49afb3e8135bef","schema_version":"1.0","event_id":"sha256:f1ab045c93e79455d86a11e8d1dc57f7c08129bd5fc9c6996e49afb3e8135bef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/bundle.json","state_url":"https://pith.science/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/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":"2026-05-28T20:02:24Z","links":{"resolver":"https://pith.science/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV","bundle":"https://pith.science/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/bundle.json","state":"https://pith.science/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FSQLI3RZSPMSILZZ2BJGYUUCZV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FSQLI3RZSPMSILZZ2BJGYUUCZV","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":"76875c9a5a50a02e9aa1b3781e6019db9aaa7b9c38d1304f95ac3a4843c62f66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-24T21:41:47Z","title_canon_sha256":"59178eb178e82c0bea00f8d49e78d8d7c6639c9bf773cd8cdfca1ccfae1f33f1"},"schema_version":"1.0","source":{"id":"1805.09911","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09911","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09911v1","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09911","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"pith_short_12","alias_value":"FSQLI3RZSPMS","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FSQLI3RZSPMSILZZ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FSQLI3RZ","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:f1ab045c93e79455d86a11e8d1dc57f7c08129bd5fc9c6996e49afb3e8135bef","target":"graph","created_at":"2026-05-18T00:14:58Z","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":"NGC 1232 is a face-on spiral galaxy and a great laboratory for the study of star-formation due to its proximity. We obtained high spatial resolution H{\\alpha} images of this galaxy, with adaptive optics, using the SAM instrument at the SOAR telescope, and used these images to study its H ii regions. These observations allowed us to produce the most complete H ii region catalog for it to date, with a total of 976 sources. This doubles the number of H ii regions previously found for this object. We used these data to construct the H ii luminosity function, and obtained a power-law index lower th","authors_text":"Alberto Rodr\\'iguez-Ardila, Alexandre Ara\\'ujo de Souza, Luciano Fraga, Lucimara P. Martins","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-24T21:41:47Z","title":"Star Formation Rate Distribution in the Galaxy NGC 1232"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09911","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":"sha256:66e55d1e09db9eaf4f3738fa1f239313e4c50e19d1ae84457fffec8a1e849efd","target":"record","created_at":"2026-05-18T00:14:58Z","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":"76875c9a5a50a02e9aa1b3781e6019db9aaa7b9c38d1304f95ac3a4843c62f66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-24T21:41:47Z","title_canon_sha256":"59178eb178e82c0bea00f8d49e78d8d7c6639c9bf773cd8cdfca1ccfae1f33f1"},"schema_version":"1.0","source":{"id":"1805.09911","kind":"arxiv","version":1}},"canonical_sha256":"2ca0b46e3993d9242f39d0526c5282cd642126c0c435534d5d7414126da0b3e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ca0b46e3993d9242f39d0526c5282cd642126c0c435534d5d7414126da0b3e8","first_computed_at":"2026-05-18T00:14:58.810672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:58.810672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SmbxnJ2CJi3h53kpoVshipeSAuNMtD+Fcz6MLbWu8VyDV0V1UhHUhRIDskC96K8vqxmsLRnep0pvu7Ji0iVNBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:58.811246Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09911","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66e55d1e09db9eaf4f3738fa1f239313e4c50e19d1ae84457fffec8a1e849efd","sha256:f1ab045c93e79455d86a11e8d1dc57f7c08129bd5fc9c6996e49afb3e8135bef"],"state_sha256":"49766126236500188d67a7dd2f7f39190e4336099dd48f46c92e4f74be3525b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UFuo2UnKEMjUSKmItsErOJ5pOZSL3C1NxzyaL2Beinim6brwdMWby4o57zlGkgwan6mHEqevQbHffhSKhT9cCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:02:24.788329Z","bundle_sha256":"3d80b3c98428f068df5f177370c3b048f8bc6d7e4771c4653c61cd04fef6c41f"}}