{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:O2QNF3S7GB4ABGTVN47DI755TN","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":"b039bbb74694136ca01c0419202e0dd5f02091123ec95a50c3804d770194eca2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-26T08:13:57Z","title_canon_sha256":"430141e156a53ede9c79c497479be87239061e51cf7022a79c82e192899ff18f"},"schema_version":"1.0","source":{"id":"2108.11641","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.11641","created_at":"2026-07-05T03:10:35Z"},{"alias_kind":"arxiv_version","alias_value":"2108.11641v1","created_at":"2026-07-05T03:10:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.11641","created_at":"2026-07-05T03:10:35Z"},{"alias_kind":"pith_short_12","alias_value":"O2QNF3S7GB4A","created_at":"2026-07-05T03:10:35Z"},{"alias_kind":"pith_short_16","alias_value":"O2QNF3S7GB4ABGTV","created_at":"2026-07-05T03:10:35Z"},{"alias_kind":"pith_short_8","alias_value":"O2QNF3S7","created_at":"2026-07-05T03:10:35Z"}],"graph_snapshots":[{"event_id":"sha256:15486c15778b33b48a95b4bdf5bbaf6a70e30dbfb18d5f4352d1d7348fd746d2","target":"graph","created_at":"2026-07-05T03:10:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2108.11641/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop an automatic bubble-recognition routine based on Minkowski functionals (MF) and tensors (MT) to detect bubble-like interstellar structures in optical emission line images. Minkowski functionals and MT are powerful mathematical tools for parameterizing the shapes of bodies. Using the papaya2-library, we created maps of the desired MF or MT of structures at a given window size. We used maps of the irreducible MT $\\psi_2$, which is sensitive to elongation, to find filamentary regions in H$\\alpha$, [SII], and [OIII] images of the Magellanic Cloud Emission Line Survey (MCELS). Using the ","authors_text":"Caroline Collischon, Klaus Mecke, Manami Sasaki, Michael A. Klatt, Sean D. Points","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-26T08:13:57Z","title":"Tracking down the origin of superbubbles and supergiant shells in the Magellanic Clouds with Minkowski tensor analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.11641","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":"sha256:0f488918c938e55bb1d347c4a8eac9a13c97ad557c864402f5efe8894048ccdc","target":"record","created_at":"2026-07-05T03:10:35Z","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":"b039bbb74694136ca01c0419202e0dd5f02091123ec95a50c3804d770194eca2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-26T08:13:57Z","title_canon_sha256":"430141e156a53ede9c79c497479be87239061e51cf7022a79c82e192899ff18f"},"schema_version":"1.0","source":{"id":"2108.11641","kind":"arxiv","version":1}},"canonical_sha256":"76a0d2ee5f3078009a756f3e347fbd9b47db8693100f1dea4fce084225f2aa30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76a0d2ee5f3078009a756f3e347fbd9b47db8693100f1dea4fce084225f2aa30","first_computed_at":"2026-07-05T03:10:35.715911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:10:35.715911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0LUfAlDUrTAfsaQ1fi3yc1/cbRiKM+EFqj/Tekm1DTemBlzxfyUnuwj808YHzz5NJt7hubAAw8EdaqGF7x62DA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:10:35.716399Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.11641","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f488918c938e55bb1d347c4a8eac9a13c97ad557c864402f5efe8894048ccdc","sha256:15486c15778b33b48a95b4bdf5bbaf6a70e30dbfb18d5f4352d1d7348fd746d2"],"state_sha256":"497b0a6e4460104d0ae7d81ed8c74756baa6d1f912e378c92d64fe003c6e8ba9"}