{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:I6KC5VAMYII4VWC4QW6JQIWR42","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":"e385ec47b5bf075c21385a3c5456323ef132dafdeb75c5d6bc64b081707cb0f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-06T19:00:02Z","title_canon_sha256":"8b63b56e98969972baacdfa94fe375cf12f4055e2250fe2af6c0300cbc6e0f41"},"schema_version":"1.0","source":{"id":"1903.02564","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02564","created_at":"2026-07-05T00:03:13Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02564v2","created_at":"2026-07-05T00:03:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02564","created_at":"2026-07-05T00:03:13Z"},{"alias_kind":"pith_short_12","alias_value":"I6KC5VAMYII4","created_at":"2026-07-05T00:03:13Z"},{"alias_kind":"pith_short_16","alias_value":"I6KC5VAMYII4VWC4","created_at":"2026-07-05T00:03:13Z"},{"alias_kind":"pith_short_8","alias_value":"I6KC5VAM","created_at":"2026-07-05T00:03:13Z"}],"graph_snapshots":[{"event_id":"sha256:0a38c468b2fb9a69a7756cad0d64adac24b304e0381961e14b2ff77487f9e522","target":"graph","created_at":"2026-07-05T00:03:13Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1903.02564/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most giant exoplanets discovered by radial velocity surveys have much higher eccentricities than those in the solar system. The planet--planet scattering mechanism has been shown to match the broad eccentricity distribution, but the highest-eccentricity planets are often attributed to Kozai-Lidov oscillations induced by a stellar companion. Here we investigate whether the highly eccentric exoplanet population can be produced entirely by scattering. We ran 500 N-body simulations of closely packed giant-planet systems that became unstable under their own mutual perturbations. We find that the su","authors_text":"Daniel Carrera, Melvyn B. Davies, Sean R. Raymond","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-06T19:00:02Z","title":"Planet-planet scattering as the source of the highest eccentricity exoplanets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02564","kind":"arxiv","version":2},"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":"sha256:7cb57127b33edd7059d99dd12e9df6731281545291745d340ac2db3889123374","target":"record","created_at":"2026-07-05T00:03:13Z","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":"e385ec47b5bf075c21385a3c5456323ef132dafdeb75c5d6bc64b081707cb0f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-06T19:00:02Z","title_canon_sha256":"8b63b56e98969972baacdfa94fe375cf12f4055e2250fe2af6c0300cbc6e0f41"},"schema_version":"1.0","source":{"id":"1903.02564","kind":"arxiv","version":2}},"canonical_sha256":"47942ed40cc211cad85c85bc9822d1e6a6c72c4631f380c1e5e38c0a18fc86e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47942ed40cc211cad85c85bc9822d1e6a6c72c4631f380c1e5e38c0a18fc86e0","first_computed_at":"2026-07-05T00:03:13.981440Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:03:13.981440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RaYz7ixQBxfR8GRyiac4BugRqzfNYzpq/COhsMXvOFP+P7OlGPP5SCh0XTnKifGVa/jOlQTCZWMIdNfllgCVBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:03:13.981892Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.02564","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7cb57127b33edd7059d99dd12e9df6731281545291745d340ac2db3889123374","sha256:0a38c468b2fb9a69a7756cad0d64adac24b304e0381961e14b2ff77487f9e522"],"state_sha256":"c8b51df8d1b4e86b35f2c82db2e0c95b1a64e17658d1320e8e6404aea1a59f42"}