{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:BKWHIOERAPPFIYZVYGH75WWMUE","short_pith_number":"pith:BKWHIOER","schema_version":"1.0","canonical_sha256":"0aac74389103de546335c18ffedacca13bc8d5492f011b58e7177787bf4a061f","source":{"kind":"arxiv","id":"1806.08564","version":2},"attestation_state":"computed","paper":{"title":"Synthetic C$^{18}$O observations of fibrous filaments: the problems of mapping from PPV to PPP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Duarte-Cabral, A. P. Whitworth, P. C. Clark, R. L. Spowage, S. D. Clarke, S. E. Jaffa, S. T. Suri, S. Walch","submitted_at":"2018-06-22T09:10:21Z","abstract_excerpt":"Molecular-line observations of filaments in star-forming regions have revealed the existence of elongated coherent features within the filaments; these features are termed fibres. Here we caution that, since fibres are traced in PPV space, there is no guarantee that they represent coherent features in PPP space. We illustrate this contention using simulations of the growth of a filament from a turbulent medium. Synthetic C$^{18}$O observations of the simulated filaments reveal the existence of fibres very similar to the observed ones, i.e. elongated coherent features in the resulting PPV data-"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1806.08564","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-22T09:10:21Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"87f0835191758aeb19c9fdbf5acb337be1311ca6abc446ef3210bbe86d3110e7","abstract_canon_sha256":"3d15aa1af3ccdb4315aed0301468a1c338158fb6449aeaccc20d53208eb9f709"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:04.356299Z","signature_b64":"No6JmZqqp41npOSnn1kJnxVXIa2/h8a5NdquYpJOjJUaN+kcXHyLkD4drrBuQXgJfk9gN+9pXRYHEQOk3nF4Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0aac74389103de546335c18ffedacca13bc8d5492f011b58e7177787bf4a061f","last_reissued_at":"2026-05-18T00:11:04.355426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:04.355426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Synthetic C$^{18}$O observations of fibrous filaments: the problems of mapping from PPV to PPP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Duarte-Cabral, A. P. Whitworth, P. C. Clark, R. L. Spowage, S. D. Clarke, S. E. Jaffa, S. T. Suri, S. Walch","submitted_at":"2018-06-22T09:10:21Z","abstract_excerpt":"Molecular-line observations of filaments in star-forming regions have revealed the existence of elongated coherent features within the filaments; these features are termed fibres. Here we caution that, since fibres are traced in PPV space, there is no guarantee that they represent coherent features in PPP space. We illustrate this contention using simulations of the growth of a filament from a turbulent medium. Synthetic C$^{18}$O observations of the simulated filaments reveal the existence of fibres very similar to the observed ones, i.e. elongated coherent features in the resulting PPV data-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08564","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1806.08564","created_at":"2026-05-18T00:11:04.355560+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.08564v2","created_at":"2026-05-18T00:11:04.355560+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08564","created_at":"2026-05-18T00:11:04.355560+00:00"},{"alias_kind":"pith_short_12","alias_value":"BKWHIOERAPPF","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_16","alias_value":"BKWHIOERAPPFIYZV","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_8","alias_value":"BKWHIOER","created_at":"2026-05-18T12:32:16.446611+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE","json":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE.json","graph_json":"https://pith.science/api/pith-number/BKWHIOERAPPFIYZVYGH75WWMUE/graph.json","events_json":"https://pith.science/api/pith-number/BKWHIOERAPPFIYZVYGH75WWMUE/events.json","paper":"https://pith.science/paper/BKWHIOER"},"agent_actions":{"view_html":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE","download_json":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE.json","view_paper":"https://pith.science/paper/BKWHIOER","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.08564&json=true","fetch_graph":"https://pith.science/api/pith-number/BKWHIOERAPPFIYZVYGH75WWMUE/graph.json","fetch_events":"https://pith.science/api/pith-number/BKWHIOERAPPFIYZVYGH75WWMUE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE/action/storage_attestation","attest_author":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE/action/author_attestation","sign_citation":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE/action/citation_signature","submit_replication":"https://pith.science/pith/BKWHIOERAPPFIYZVYGH75WWMUE/action/replication_record"}},"created_at":"2026-05-18T00:11:04.355560+00:00","updated_at":"2026-05-18T00:11:04.355560+00:00"}