{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:EKA7Y3CUUJLN7LNPJMNMU2PEID","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":"5076ab3a9e2fc8680290226e6e917bba7c297896b55654f2e56031a670975f7d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-20T07:32:47Z","title_canon_sha256":"73ea7d4bfb6eb3b337f04c16d0577984cf2c9e12b0d6cc8921701eadcc10f951"},"schema_version":"1.0","source":{"id":"astro-ph/0610613","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610613","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610613v1","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610613","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"EKA7Y3CUUJLN","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EKA7Y3CUUJLN7LNP","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EKA7Y3CU","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:1b2dac071f3d9cce9acd28d8b818d4df348432ba6b193f3038962e6d4b7f9cc5","target":"graph","created_at":"2026-05-18T04:28:57Z","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":"There exists observational evidence that the interstellar medium has a fractal structure in a wide range of spatial scales. The measurement of the fractal dimension (Df) of interstellar clouds is a simple way to characterize this fractal structure, but several factors, both intrinsic to the clouds and to the observations, may contribute to affect the values obtained. In this work we study the effects that opacity and noise have on the determination of Df. We focus on two different fractal dimension estimators: the perimeter-area based dimension (Dper) and the mass-size dimension (Dm). We first","authors_text":"Emilio J. Alfaro, Enrique Perez, Nestor Sanchez","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-10-20T07:32:47Z","title":"Fractal dimension of interstellar clouds: opacity and noise effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610613","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":"sha256:8e9737df12ccb0d56896d12e5723202efe7e4beab7eddb359066efe25e8d8f61","target":"record","created_at":"2026-05-18T04:28:57Z","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":"5076ab3a9e2fc8680290226e6e917bba7c297896b55654f2e56031a670975f7d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-20T07:32:47Z","title_canon_sha256":"73ea7d4bfb6eb3b337f04c16d0577984cf2c9e12b0d6cc8921701eadcc10f951"},"schema_version":"1.0","source":{"id":"astro-ph/0610613","kind":"arxiv","version":1}},"canonical_sha256":"2281fc6c54a256dfadaf4b1aca69e440fbc396a7c6c6b5923961485fb0432baa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2281fc6c54a256dfadaf4b1aca69e440fbc396a7c6c6b5923961485fb0432baa","first_computed_at":"2026-05-18T04:28:57.453477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:57.453477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O/+8YCEb1oQLIdKOoTzWUa5jnLkOi/7yATWl1I3jXGwRd+6WVVqXwfxhnQ+yqVKrZR5EfenGOIYa4OlocJwWDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:57.454087Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0610613","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e9737df12ccb0d56896d12e5723202efe7e4beab7eddb359066efe25e8d8f61","sha256:1b2dac071f3d9cce9acd28d8b818d4df348432ba6b193f3038962e6d4b7f9cc5"],"state_sha256":"2257cba06bfd85367d42dd35d976a08f963dbdeeece604de162a1143163a79ee"}