{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:QZSGKXNPR2PEULLVMFNNLFSMC5","short_pith_number":"pith:QZSGKXNP","schema_version":"1.0","canonical_sha256":"8664655daf8e9e4a2d75615ad5964c175b24953369d8f7dbaba04f651d0b149c","source":{"kind":"arxiv","id":"1907.01290","version":1},"attestation_state":"computed","paper":{"title":"The Concentration and Growth of Solids in Fragmenting Circumstellar Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Hans Baehr, Hubert Klahr","submitted_at":"2019-07-02T10:37:06Z","abstract_excerpt":"Due to the gas rich environments of early circumstellar disks, the gravitational collapse of cool, dense regions of the disk form fragments largely composed of gas. During formation, disk fragments may attain increased metallicities as they interact with the surrounding disk material, whether through particle migration to pressure maxima or through mutual gravitational interaction. In this paper, we investigate the ability of fragments to collect and retain a significant solid component through gas-particle interactions in high-resolution 3D self-gravitating shearing box simulations. The forma"},"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":"1907.01290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-02T10:37:06Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"144ad07d61887d072aa2d56e2369e9ffa6d7e5183cb2bfad0316ef1bef332e34","abstract_canon_sha256":"20a2029cd9be5d219b40ea5bcfea728c6ee55115a957a25ddf3fddb2e3ab6cac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:59:23.027730Z","signature_b64":"XS5SsI6Svc9DLTZZyDhyMRG5MGbDO27oUhk0nlg41LmJ+NC8Wupt3WOsMHmoz28tXskUptWWphKTjT/ov+YkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8664655daf8e9e4a2d75615ad5964c175b24953369d8f7dbaba04f651d0b149c","last_reissued_at":"2026-07-04T23:59:23.027231Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:59:23.027231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Concentration and Growth of Solids in Fragmenting Circumstellar Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Hans Baehr, Hubert Klahr","submitted_at":"2019-07-02T10:37:06Z","abstract_excerpt":"Due to the gas rich environments of early circumstellar disks, the gravitational collapse of cool, dense regions of the disk form fragments largely composed of gas. During formation, disk fragments may attain increased metallicities as they interact with the surrounding disk material, whether through particle migration to pressure maxima or through mutual gravitational interaction. In this paper, we investigate the ability of fragments to collect and retain a significant solid component through gas-particle interactions in high-resolution 3D self-gravitating shearing box simulations. The forma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01290","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.01290/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1907.01290","created_at":"2026-07-04T23:59:23.027291+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.01290v1","created_at":"2026-07-04T23:59:23.027291+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01290","created_at":"2026-07-04T23:59:23.027291+00:00"},{"alias_kind":"pith_short_12","alias_value":"QZSGKXNPR2PE","created_at":"2026-07-04T23:59:23.027291+00:00"},{"alias_kind":"pith_short_16","alias_value":"QZSGKXNPR2PEULLV","created_at":"2026-07-04T23:59:23.027291+00:00"},{"alias_kind":"pith_short_8","alias_value":"QZSGKXNP","created_at":"2026-07-04T23:59:23.027291+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/QZSGKXNPR2PEULLVMFNNLFSMC5","json":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5.json","graph_json":"https://pith.science/api/pith-number/QZSGKXNPR2PEULLVMFNNLFSMC5/graph.json","events_json":"https://pith.science/api/pith-number/QZSGKXNPR2PEULLVMFNNLFSMC5/events.json","paper":"https://pith.science/paper/QZSGKXNP"},"agent_actions":{"view_html":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5","download_json":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5.json","view_paper":"https://pith.science/paper/QZSGKXNP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.01290&json=true","fetch_graph":"https://pith.science/api/pith-number/QZSGKXNPR2PEULLVMFNNLFSMC5/graph.json","fetch_events":"https://pith.science/api/pith-number/QZSGKXNPR2PEULLVMFNNLFSMC5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5/action/storage_attestation","attest_author":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5/action/author_attestation","sign_citation":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5/action/citation_signature","submit_replication":"https://pith.science/pith/QZSGKXNPR2PEULLVMFNNLFSMC5/action/replication_record"}},"created_at":"2026-07-04T23:59:23.027291+00:00","updated_at":"2026-07-04T23:59:23.027291+00:00"}