{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LXC2LD3GWGASBPQW3MEELYB33W","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":"c6812f76af3244c35f4d2a8b05ae0ad72af69a5345a425f016890b1a2a2157c1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-11T13:47:21Z","title_canon_sha256":"30fb300883295fd766d9a2a3abaf0cf00f1ae6f851ad6bfeb5767b3917f2b5e7"},"schema_version":"1.0","source":{"id":"1801.03756","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03756","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03756v1","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03756","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"pith_short_12","alias_value":"LXC2LD3GWGAS","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LXC2LD3GWGASBPQW","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LXC2LD3G","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:a016bddfe87d484539c105bdf38685f62c915485d0a4f7581517518692c25069","target":"graph","created_at":"2026-05-18T00:26:13Z","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":"The timeline of the lunar bombardment in the first Gy of the Solar System remains unclear. Some basin-forming impacts occurred 3.9-3.7Gy ago. Many other basins formed before, but their exact ages are not precisely known. There are two possible interpretations of the data: in the cataclysm scenario there was a surge in the impact rate approximately 3.9Gy ago, while in the accretion tail scenario the lunar bombardment declined since the era of planet formation and the latest basins formed in its tail-end. Here, we revisit the work of Morbidelli et al.(2012) that examined which scenario could be ","authors_text":"A. Morbidelli, D.C. Rubie, D.Nesvorny, L. Elkins-Tanton, M. Wieczorek, S.Jacobson, S. Marchi, V. Laurenz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-11T13:47:21Z","title":"The timeline of the Lunar bombardment - revisited"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03756","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":"sha256:334ff3d165a34c0d4dbdae0bd0499bad723737c3167d5f1d0764203a219a260b","target":"record","created_at":"2026-05-18T00:26:13Z","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":"c6812f76af3244c35f4d2a8b05ae0ad72af69a5345a425f016890b1a2a2157c1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-11T13:47:21Z","title_canon_sha256":"30fb300883295fd766d9a2a3abaf0cf00f1ae6f851ad6bfeb5767b3917f2b5e7"},"schema_version":"1.0","source":{"id":"1801.03756","kind":"arxiv","version":1}},"canonical_sha256":"5dc5a58f66b18120be16db0845e03bdda2686e2c6b38d76361c05507b0d14df2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dc5a58f66b18120be16db0845e03bdda2686e2c6b38d76361c05507b0d14df2","first_computed_at":"2026-05-18T00:26:13.527256Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:13.527256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"woiYOamjkSPZk0OcMVqCiAQSkZzsy87c5lqJxgoIFz/9JxS2VTCnAle2iJpGBNSniKu95dVd+8xv+lxyhDsFDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:13.527716Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.03756","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:334ff3d165a34c0d4dbdae0bd0499bad723737c3167d5f1d0764203a219a260b","sha256:a016bddfe87d484539c105bdf38685f62c915485d0a4f7581517518692c25069"],"state_sha256":"75539dc28020ba12d3001b2b8a1e54e6b0ea99c5390ecdf368a0ce4c23d31105"}