{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:FU6V7PFY6ECOE32KFC6ZAZXDAA","short_pith_number":"pith:FU6V7PFY","schema_version":"1.0","canonical_sha256":"2d3d5fbcb8f104e26f4a28bd9066e3003d4b3a6155c3f4621cebdfab9890e0e7","source":{"kind":"arxiv","id":"1101.5172","version":1},"attestation_state":"computed","paper":{"title":"Star Formation in Molecular Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Mark R. Krumholz","submitted_at":"2011-01-26T21:43:46Z","abstract_excerpt":"Star formation is one of the least understood processes in cosmic evolution. It is difficult to formulate a general theory for star formation in part because of the wide range of physical processes involved. The interstellar gas out of which stars form is a supersonically turbulent plasma governed by magnetohydrodynamics. This is hard enough by itself, since we do not understand even subsonic hydrodynamic turbulence very well, let alone supersonic non-ideal MHD turbulence. However, the behavior of star-forming clouds in the ISM is also obviously influenced by gravity, which adds complexity, an"},"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":"1101.5172","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-01-26T21:43:46Z","cross_cats_sorted":[],"title_canon_sha256":"12ebe6f9684b90db3236bc4cedfeb3a060704b0707d328ff52c478183eb2c3ea","abstract_canon_sha256":"580ab95a16a004d5bc98c6c4f673cfb64026f852c0c515cc3b43581cda7b2c23"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:21.623833Z","signature_b64":"SNPROkCsqWQG/ADL3a711MBxDpqA8/UKzmOn1uMAl7+uhvjwQeRIzAxWG6sdgj8v6dl5c1r/jAPUeQ+zQGqlCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d3d5fbcb8f104e26f4a28bd9066e3003d4b3a6155c3f4621cebdfab9890e0e7","last_reissued_at":"2026-05-18T02:03:21.623100Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:21.623100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Star Formation in Molecular Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Mark R. Krumholz","submitted_at":"2011-01-26T21:43:46Z","abstract_excerpt":"Star formation is one of the least understood processes in cosmic evolution. It is difficult to formulate a general theory for star formation in part because of the wide range of physical processes involved. The interstellar gas out of which stars form is a supersonically turbulent plasma governed by magnetohydrodynamics. This is hard enough by itself, since we do not understand even subsonic hydrodynamic turbulence very well, let alone supersonic non-ideal MHD turbulence. However, the behavior of star-forming clouds in the ISM is also obviously influenced by gravity, which adds complexity, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5172","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1101.5172","created_at":"2026-05-18T02:03:21.623211+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.5172v1","created_at":"2026-05-18T02:03:21.623211+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5172","created_at":"2026-05-18T02:03:21.623211+00:00"},{"alias_kind":"pith_short_12","alias_value":"FU6V7PFY6ECO","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_16","alias_value":"FU6V7PFY6ECOE32K","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_8","alias_value":"FU6V7PFY","created_at":"2026-05-18T12:26:28.662955+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/FU6V7PFY6ECOE32KFC6ZAZXDAA","json":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA.json","graph_json":"https://pith.science/api/pith-number/FU6V7PFY6ECOE32KFC6ZAZXDAA/graph.json","events_json":"https://pith.science/api/pith-number/FU6V7PFY6ECOE32KFC6ZAZXDAA/events.json","paper":"https://pith.science/paper/FU6V7PFY"},"agent_actions":{"view_html":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA","download_json":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA.json","view_paper":"https://pith.science/paper/FU6V7PFY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.5172&json=true","fetch_graph":"https://pith.science/api/pith-number/FU6V7PFY6ECOE32KFC6ZAZXDAA/graph.json","fetch_events":"https://pith.science/api/pith-number/FU6V7PFY6ECOE32KFC6ZAZXDAA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA/action/storage_attestation","attest_author":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA/action/author_attestation","sign_citation":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA/action/citation_signature","submit_replication":"https://pith.science/pith/FU6V7PFY6ECOE32KFC6ZAZXDAA/action/replication_record"}},"created_at":"2026-05-18T02:03:21.623211+00:00","updated_at":"2026-05-18T02:03:21.623211+00:00"}