{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:2SACJYRJEIAGCIV5VU2F33I5BX","short_pith_number":"pith:2SACJYRJ","schema_version":"1.0","canonical_sha256":"d48024e22922006122bdad345ded1d0de777bf3e62e516e8777fe4786a28f4f2","source":{"kind":"arxiv","id":"1310.0156","version":2},"attestation_state":"computed","paper":{"title":"How Empty are Disk Gaps Opened by Giant Planets?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Eugene Chiang, Jeffrey Fung, Ji-Ming Shi","submitted_at":"2013-10-01T06:41:48Z","abstract_excerpt":"Gap clearing by giant planets has been proposed to explain the optically thin cavities observed in many protoplanetary disks. How much material remains in the gap determines not only how detectable young planets are in their birth environments, but also how strong corotation torques are, which impacts how planets can survive fast orbital migration. We determine numerically how the average surface density inside the gap, sigma_gap, depends on planet-to-star mass ratio q, Shakura-Sunyaev viscosity parameter alpha, and disk height-to-radius aspect ratio h/r. Our results are derived from our new G"},"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":"1310.0156","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-10-01T06:41:48Z","cross_cats_sorted":[],"title_canon_sha256":"4892e52fe49b952ec8a0d1d94b8e046aabf9a5da4b4b816401f9ba26763f95f9","abstract_canon_sha256":"e98ad1ade45e14f28f6a95301b8f4f21f237ebb9cc55020c0586fbb45a310187"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:46.807712Z","signature_b64":"utUL708VXggdSpVg7eayM6HHmRFVezRI82L9xRfOaHJlJDgZmpHP3G8y+EShUEWGyGYONqSx6xlgZTUCzsrDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d48024e22922006122bdad345ded1d0de777bf3e62e516e8777fe4786a28f4f2","last_reissued_at":"2026-05-18T02:48:46.807091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:46.807091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"How Empty are Disk Gaps Opened by Giant Planets?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Eugene Chiang, Jeffrey Fung, Ji-Ming Shi","submitted_at":"2013-10-01T06:41:48Z","abstract_excerpt":"Gap clearing by giant planets has been proposed to explain the optically thin cavities observed in many protoplanetary disks. How much material remains in the gap determines not only how detectable young planets are in their birth environments, but also how strong corotation torques are, which impacts how planets can survive fast orbital migration. We determine numerically how the average surface density inside the gap, sigma_gap, depends on planet-to-star mass ratio q, Shakura-Sunyaev viscosity parameter alpha, and disk height-to-radius aspect ratio h/r. Our results are derived from our new G"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0156","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":"1310.0156","created_at":"2026-05-18T02:48:46.807194+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.0156v2","created_at":"2026-05-18T02:48:46.807194+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0156","created_at":"2026-05-18T02:48:46.807194+00:00"},{"alias_kind":"pith_short_12","alias_value":"2SACJYRJEIAG","created_at":"2026-05-18T12:27:32.513160+00:00"},{"alias_kind":"pith_short_16","alias_value":"2SACJYRJEIAGCIV5","created_at":"2026-05-18T12:27:32.513160+00:00"},{"alias_kind":"pith_short_8","alias_value":"2SACJYRJ","created_at":"2026-05-18T12:27:32.513160+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/2SACJYRJEIAGCIV5VU2F33I5BX","json":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX.json","graph_json":"https://pith.science/api/pith-number/2SACJYRJEIAGCIV5VU2F33I5BX/graph.json","events_json":"https://pith.science/api/pith-number/2SACJYRJEIAGCIV5VU2F33I5BX/events.json","paper":"https://pith.science/paper/2SACJYRJ"},"agent_actions":{"view_html":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX","download_json":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX.json","view_paper":"https://pith.science/paper/2SACJYRJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.0156&json=true","fetch_graph":"https://pith.science/api/pith-number/2SACJYRJEIAGCIV5VU2F33I5BX/graph.json","fetch_events":"https://pith.science/api/pith-number/2SACJYRJEIAGCIV5VU2F33I5BX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX/action/storage_attestation","attest_author":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX/action/author_attestation","sign_citation":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX/action/citation_signature","submit_replication":"https://pith.science/pith/2SACJYRJEIAGCIV5VU2F33I5BX/action/replication_record"}},"created_at":"2026-05-18T02:48:46.807194+00:00","updated_at":"2026-05-18T02:48:46.807194+00:00"}