{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:YJXBXJHHPRN6ARQVUDR4LS66XB","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":"22bee64b0dd2a1d1c9bdacf815916ebb2dea4473bc13db3e86779d6798361a5f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-20T21:11:11Z","title_canon_sha256":"48cffe49603cda555b8f2f907352a62f4f8fea476ccc160c2f6913bc3719b300"},"schema_version":"1.0","source":{"id":"0802.2944","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.2944","created_at":"2026-07-04T17:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"0802.2944v1","created_at":"2026-07-04T17:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.2944","created_at":"2026-07-04T17:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"YJXBXJHHPRN6","created_at":"2026-07-04T17:09:24Z"},{"alias_kind":"pith_short_16","alias_value":"YJXBXJHHPRN6ARQV","created_at":"2026-07-04T17:09:24Z"},{"alias_kind":"pith_short_8","alias_value":"YJXBXJHH","created_at":"2026-07-04T17:09:24Z"}],"graph_snapshots":[{"event_id":"sha256:e01e9aa09adefe146e59bf5f40df01e9ff87345abbed7654b955976306a305e2","target":"graph","created_at":"2026-07-04T17:09:24Z","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/0802.2944/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate the utility of dendrograms at representing the essential features of the hierarchical structure of the isosurfaces for molecular line data cubes. The dendrogram of a data cube is an abstraction of the changing topology of the isosurfaces as a function of contour level. The ability to track hierarchical structure over a range of scales makes this analysis philosophically different from local segmentation algorithms like CLUMPFIND. Points in the dendrogram structure correspond to specific volumes in data cubes defined by their bounding isosurfaces. We further refine the technique ","authors_text":"2), 3), 3) ((1) CfA (2) UBC Okanagan (3) Harvard IIC), A. A. Goodman (1, E. W. Rosolowsky (1, J. E. Pineda (1), J. Kauffmann (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-20T21:11:11Z","title":"Structural Analysis of Molecular Clouds: Dendrograms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.2944","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":"sha256:74247e446f29f41f3b686acd51470b280e47507829a1d1f3bd7c53c7a95ae202","target":"record","created_at":"2026-07-04T17:09:24Z","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":"22bee64b0dd2a1d1c9bdacf815916ebb2dea4473bc13db3e86779d6798361a5f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-20T21:11:11Z","title_canon_sha256":"48cffe49603cda555b8f2f907352a62f4f8fea476ccc160c2f6913bc3719b300"},"schema_version":"1.0","source":{"id":"0802.2944","kind":"arxiv","version":1}},"canonical_sha256":"c26e1ba4e77c5be04615a0e3c5cbdeb85010b526bfefc132891d82dd0161670c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c26e1ba4e77c5be04615a0e3c5cbdeb85010b526bfefc132891d82dd0161670c","first_computed_at":"2026-07-04T17:09:24.845255Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:09:24.845255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O5spJ7NxNdYRoMokgRJwUnH1u/lfiFKQifD1Untmp8q7Z1Vtrbk52fezpqEe3wwir+ByI2apoK1+EwAlwHGJDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:09:24.845654Z","signed_message":"canonical_sha256_bytes"},"source_id":"0802.2944","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74247e446f29f41f3b686acd51470b280e47507829a1d1f3bd7c53c7a95ae202","sha256:e01e9aa09adefe146e59bf5f40df01e9ff87345abbed7654b955976306a305e2"],"state_sha256":"8f73b6385ce8dd32700d9a5d06c7416e41d58986ca3a6fb5eb80763f004b8865"}