{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:5MXBBFRSINISOXU5EEZX7UTEUG","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"5f7ecc0b56607c59b0bc01027539e5aac899b96494739241c7f4786c92c3b321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-06T23:27:01Z","title_canon_sha256":"0293c577f2876dc8021c7e19bdaaebe0cd262c28c4d1265fa02690cdec06265e"},"schema_version":"1.0","source":{"id":"1510.01778","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.01778","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"arxiv_version","alias_value":"1510.01778v1","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.01778","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"pith_short_12","alias_value":"5MXBBFRSINIS","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"5MXBBFRSINISOXU5","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"5MXBBFRS","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:0abdf77a200c37a21db6dfd66292b42fb45c35b694c18efa66ac6d57b151e1ee","target":"graph","created_at":"2026-05-18T01:30:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Planetary systems are born in the disks of gas, dust and rocky fragments that surround newly formed stars. Solid content assembles into ever-larger rocky fragments that eventually become planetary embryos. These then continue their growth by accreting leftover material in the disc. Concurrently, tidal effects in the disc cause a radial drift in the embryo orbits, a process known as migration. Fast inward migration is predicted by theory for embryos smaller than three to five Earth masses. With only inward migration, these embryos can only rarely become giant planets located at Earth's distance","authors_text":"Fr\\'ed\\'eric Masset, Gloria Koenigsberger, Judit Szul\\'agyi, Pablo Ben\\'itez-Llambay","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-06T23:27:01Z","title":"Planet heating prevents inward migration of planetary cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.01778","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:21917525d9b6d98676c94e2eba112444eb22ee14878c8d7be5f3100b2653d5f8","target":"record","created_at":"2026-05-18T01:30:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"5f7ecc0b56607c59b0bc01027539e5aac899b96494739241c7f4786c92c3b321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-06T23:27:01Z","title_canon_sha256":"0293c577f2876dc8021c7e19bdaaebe0cd262c28c4d1265fa02690cdec06265e"},"schema_version":"1.0","source":{"id":"1510.01778","kind":"arxiv","version":1}},"canonical_sha256":"eb2e1096324351275e9d21337fd264a19e8f2d9910a874a7aefd1ebe96b49adb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb2e1096324351275e9d21337fd264a19e8f2d9910a874a7aefd1ebe96b49adb","first_computed_at":"2026-05-18T01:30:50.403209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:50.403209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UhfC33klwlqyaaAylkFkennmpKJriqesRmn8WNND7tX5Y7PzfXsvXFmJtl5zGepffAQT3/u+1FED6Rb5CQCRDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:50.403676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.01778","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21917525d9b6d98676c94e2eba112444eb22ee14878c8d7be5f3100b2653d5f8","sha256:0abdf77a200c37a21db6dfd66292b42fb45c35b694c18efa66ac6d57b151e1ee"],"state_sha256":"e13842475a67d60100f779c167142cc952d586a5c42c885e493eb40c8dea68cb"}