{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CHWUV2U3YRKBPG2AKIJ6QVAGFP","short_pith_number":"pith:CHWUV2U3","canonical_record":{"source":{"id":"1812.07590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T19:00:34Z","cross_cats_sorted":[],"title_canon_sha256":"c0b54e23eb28c277eeb1de740f4e0329431b4565f0ba8b8c59d22e52878a363c","abstract_canon_sha256":"37c489292369f18d423223239202fc908acc95c8980516d6b3fbd62b97d4c043"},"schema_version":"1.0"},"canonical_sha256":"11ed4aea9bc454179b405213e854062bd3449b6723fd05d653ddd65997e30dc6","source":{"kind":"arxiv","id":"1812.07590","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07590","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07590v1","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07590","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"CHWUV2U3YRKB","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CHWUV2U3YRKBPG2A","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CHWUV2U3","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CHWUV2U3YRKBPG2AKIJ6QVAGFP","target":"record","payload":{"canonical_record":{"source":{"id":"1812.07590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T19:00:34Z","cross_cats_sorted":[],"title_canon_sha256":"c0b54e23eb28c277eeb1de740f4e0329431b4565f0ba8b8c59d22e52878a363c","abstract_canon_sha256":"37c489292369f18d423223239202fc908acc95c8980516d6b3fbd62b97d4c043"},"schema_version":"1.0"},"canonical_sha256":"11ed4aea9bc454179b405213e854062bd3449b6723fd05d653ddd65997e30dc6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:44.498479Z","signature_b64":"L/fKH7553p1PN3Q/UWxbcdRUBENQyIbfNuCFQ8pOUqblRr7EG3CiIckQmHyS0OgkMIHuKzK4xdoa4hU1MxdLDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"11ed4aea9bc454179b405213e854062bd3449b6723fd05d653ddd65997e30dc6","last_reissued_at":"2026-05-17T23:56:44.498084Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:44.498084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.07590","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0dEsfpv20QcjVGmKsaQTIS3I017XvP1JbLA2phj8lFct9HqTQvSFMPtWi2Mla1YG4DiSOk0FxOLWd8930QzuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:52:10.085348Z"},"content_sha256":"a4a053c7471bd62bfb2ca4a4ba4d2e5f163ca222d24748bedbc0069b1096ad3a","schema_version":"1.0","event_id":"sha256:a4a053c7471bd62bfb2ca4a4ba4d2e5f163ca222d24748bedbc0069b1096ad3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CHWUV2U3YRKBPG2AKIJ6QVAGFP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The early instability scenario: terrestrial planet formation during the giant planet instability, and the effect of collisional fragmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"John E. Chambers, Kevin J. Walsh, Matthew S. Clement, Nathan A. Kaib, Sean N. Raymond","submitted_at":"2018-12-18T19:00:34Z","abstract_excerpt":"The solar system's dynamical state can be explained by an orbital instability among the giant planets. A recent model has proposed that the giant planet instability happened during terrestrial planet formation. This scenario has been shown to match the inner solar system by stunting Mars' growth and preventing planet formation in the asteroid belt. Here we present a large sample of new simulations of the \"Early Instability\" scenario. We use an N-body integration scheme that accounts for collisional fragmentation, and also perform a large set of control simulations that do not include an early "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07590","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pUFCCo70pTBq8FSg5beeOGk1hWG3EjpBq2MFwIJ1OGJCCmsrhnpf9q06tCJlG7W2kuZdo6zz0qUUshsh9c34CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:52:10.085933Z"},"content_sha256":"d58363ef17bc8c2f71f13a645bdcb63861d478a6df4ad80418c5ad3e54068c66","schema_version":"1.0","event_id":"sha256:d58363ef17bc8c2f71f13a645bdcb63861d478a6df4ad80418c5ad3e54068c66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/bundle.json","state_url":"https://pith.science/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T17:52:10Z","links":{"resolver":"https://pith.science/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP","bundle":"https://pith.science/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/bundle.json","state":"https://pith.science/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CHWUV2U3YRKBPG2AKIJ6QVAGFP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CHWUV2U3YRKBPG2AKIJ6QVAGFP","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":"37c489292369f18d423223239202fc908acc95c8980516d6b3fbd62b97d4c043","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T19:00:34Z","title_canon_sha256":"c0b54e23eb28c277eeb1de740f4e0329431b4565f0ba8b8c59d22e52878a363c"},"schema_version":"1.0","source":{"id":"1812.07590","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07590","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07590v1","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07590","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"CHWUV2U3YRKB","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CHWUV2U3YRKBPG2A","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CHWUV2U3","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:d58363ef17bc8c2f71f13a645bdcb63861d478a6df4ad80418c5ad3e54068c66","target":"graph","created_at":"2026-05-17T23:56:44Z","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 solar system's dynamical state can be explained by an orbital instability among the giant planets. A recent model has proposed that the giant planet instability happened during terrestrial planet formation. This scenario has been shown to match the inner solar system by stunting Mars' growth and preventing planet formation in the asteroid belt. Here we present a large sample of new simulations of the \"Early Instability\" scenario. We use an N-body integration scheme that accounts for collisional fragmentation, and also perform a large set of control simulations that do not include an early ","authors_text":"John E. Chambers, Kevin J. Walsh, Matthew S. Clement, Nathan A. Kaib, Sean N. Raymond","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T19:00:34Z","title":"The early instability scenario: terrestrial planet formation during the giant planet instability, and the effect of collisional fragmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07590","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:a4a053c7471bd62bfb2ca4a4ba4d2e5f163ca222d24748bedbc0069b1096ad3a","target":"record","created_at":"2026-05-17T23:56:44Z","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":"37c489292369f18d423223239202fc908acc95c8980516d6b3fbd62b97d4c043","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T19:00:34Z","title_canon_sha256":"c0b54e23eb28c277eeb1de740f4e0329431b4565f0ba8b8c59d22e52878a363c"},"schema_version":"1.0","source":{"id":"1812.07590","kind":"arxiv","version":1}},"canonical_sha256":"11ed4aea9bc454179b405213e854062bd3449b6723fd05d653ddd65997e30dc6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11ed4aea9bc454179b405213e854062bd3449b6723fd05d653ddd65997e30dc6","first_computed_at":"2026-05-17T23:56:44.498084Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:44.498084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L/fKH7553p1PN3Q/UWxbcdRUBENQyIbfNuCFQ8pOUqblRr7EG3CiIckQmHyS0OgkMIHuKzK4xdoa4hU1MxdLDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:44.498479Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.07590","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4a053c7471bd62bfb2ca4a4ba4d2e5f163ca222d24748bedbc0069b1096ad3a","sha256:d58363ef17bc8c2f71f13a645bdcb63861d478a6df4ad80418c5ad3e54068c66"],"state_sha256":"28fae46ca5f26501624e29772fdda9351eab136a252624f01b900155e9eac360"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VC6qC90/ztyZq3EeW1sKy3TdSpJ6HyI8pkDJUUAp9RJcTx6LwvehHFdQIS3rilF3wn7kgmjCV0Lv9HGUceAfAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:52:10.088978Z","bundle_sha256":"9320c4bd4831c0c08025e52d1a808bf84d463a5d1bebc9e5bc907c136c78ff71"}}