{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:Z4ZXUMCWXGL6WGO7TQINZHUFDY","short_pith_number":"pith:Z4ZXUMCW","schema_version":"1.0","canonical_sha256":"cf337a3056b997eb19df9c10dc9e851e0d45d71183b0a77202eece2b6d56f4da","source":{"kind":"arxiv","id":"1306.0576","version":4},"attestation_state":"computed","paper":{"title":"Inside-Out Planet Formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"2) ((1) Dept. of Astronomy, (2) Dept. of Physics, Jonathan C. Tan (1, Sourav Chatterjee (1), University of Florida, University of Florida)","submitted_at":"2013-06-03T20:00:12Z","abstract_excerpt":"The compact multi-transiting planet systems discovered by Kepler challenge planet formation theories. Formation in situ from disks with radial mass surface density, $\\Sigma$, profiles similar to the minimum mass solar nebula (MMSN) but boosted in normalization by factors $\\gtrsim 10$ has been suggested. We propose that a more natural way to create these planets in the inner disk is formation sequentially from the inside-out via creation of successive gravitationally unstable rings fed from a continuous stream of small (~cm--m size) \"pebbles\", drifting inwards via gas drag. Pebbles collect at t"},"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":"1306.0576","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-03T20:00:12Z","cross_cats_sorted":[],"title_canon_sha256":"fab992efc7c87a9fbd7c87d81f771c800437c3a3bc3be9d76772e242f6a3dcc3","abstract_canon_sha256":"d3ef9aece04b127f076759c43482262079aae923228a26353a36f7aba1a93a1a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:33.451006Z","signature_b64":"jaIO4gZ1Y9i+rOlF21jU0/tszsAkXT9JXmgo5J5VRkPYRJ2GvClCAesrCiu32zhQqaVxVlPoWX547HY22a0SCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf337a3056b997eb19df9c10dc9e851e0d45d71183b0a77202eece2b6d56f4da","last_reissued_at":"2026-05-18T01:49:33.450624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:33.450624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Inside-Out Planet Formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"2) ((1) Dept. of Astronomy, (2) Dept. of Physics, Jonathan C. Tan (1, Sourav Chatterjee (1), University of Florida, University of Florida)","submitted_at":"2013-06-03T20:00:12Z","abstract_excerpt":"The compact multi-transiting planet systems discovered by Kepler challenge planet formation theories. Formation in situ from disks with radial mass surface density, $\\Sigma$, profiles similar to the minimum mass solar nebula (MMSN) but boosted in normalization by factors $\\gtrsim 10$ has been suggested. We propose that a more natural way to create these planets in the inner disk is formation sequentially from the inside-out via creation of successive gravitationally unstable rings fed from a continuous stream of small (~cm--m size) \"pebbles\", drifting inwards via gas drag. Pebbles collect at t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0576","kind":"arxiv","version":4},"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":"1306.0576","created_at":"2026-05-18T01:49:33.450685+00:00"},{"alias_kind":"arxiv_version","alias_value":"1306.0576v4","created_at":"2026-05-18T01:49:33.450685+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0576","created_at":"2026-05-18T01:49:33.450685+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z4ZXUMCWXGL6","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z4ZXUMCWXGL6WGO7","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z4ZXUMCW","created_at":"2026-05-18T12:28:09.283467+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2510.17955","citing_title":"Sub-Snowline Formation of Gas-Giant Planets in Binary Systems","ref_index":17,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY","json":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY.json","graph_json":"https://pith.science/api/pith-number/Z4ZXUMCWXGL6WGO7TQINZHUFDY/graph.json","events_json":"https://pith.science/api/pith-number/Z4ZXUMCWXGL6WGO7TQINZHUFDY/events.json","paper":"https://pith.science/paper/Z4ZXUMCW"},"agent_actions":{"view_html":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY","download_json":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY.json","view_paper":"https://pith.science/paper/Z4ZXUMCW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1306.0576&json=true","fetch_graph":"https://pith.science/api/pith-number/Z4ZXUMCWXGL6WGO7TQINZHUFDY/graph.json","fetch_events":"https://pith.science/api/pith-number/Z4ZXUMCWXGL6WGO7TQINZHUFDY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY/action/storage_attestation","attest_author":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY/action/author_attestation","sign_citation":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY/action/citation_signature","submit_replication":"https://pith.science/pith/Z4ZXUMCWXGL6WGO7TQINZHUFDY/action/replication_record"}},"created_at":"2026-05-18T01:49:33.450685+00:00","updated_at":"2026-05-18T01:49:33.450685+00:00"}