{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LSAAQ65PSZNK6MJJEWFD4GSFDC","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":"1732795254d0d23d0a6bdbcc9feb7e2e9ccd55ff29503ca76539c996817c9c17","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-18T17:14:15Z","title_canon_sha256":"7ac87e08714d21323cea1f80074b9d32cc3c6d7208b63ae6ec0d6a9e1491889e"},"schema_version":"1.0","source":{"id":"1801.06131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.06131","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"arxiv_version","alias_value":"1801.06131v1","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.06131","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"pith_short_12","alias_value":"LSAAQ65PSZNK","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LSAAQ65PSZNK6MJJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LSAAQ65P","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:ea6813124bd8cc032fbd8ccc4a8a9c383658ddd4875d86127dbdc55fec64f930","target":"graph","created_at":"2026-05-18T00:22:02Z","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":"We perform long-term simulations, up to ten billion years, of closely-spaced configurations of 2 -- 6 planets, each as massive as the Earth, traveling on nested orbits about either stellar component in $\\alpha$ Centauri AB. The innermost planet initially orbits at either the inner edge of its star's empirical habitable zone (HZ) or the inner edge of its star's conservative HZ. Although individual planets on low inclination, low eccentricity, orbits can survive throughout the habitable zones of both stars, perturbations from the companion star require that the minimum spacing of planets in mult","authors_text":"Billy Quarles, Jack J. Lissauer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-18T17:14:15Z","title":"Long-Term Stability of Tightly Packed Multi-Planet Systems in Prograde, Coplanar, Circumstellar Orbits within the $\\alpha$ Centauri AB System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.06131","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:d702b7f10f59f79b96ca2ecc22122016cd9cbc8c44df2c0ae8c9354a83c71e54","target":"record","created_at":"2026-05-18T00:22:02Z","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":"1732795254d0d23d0a6bdbcc9feb7e2e9ccd55ff29503ca76539c996817c9c17","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-01-18T17:14:15Z","title_canon_sha256":"7ac87e08714d21323cea1f80074b9d32cc3c6d7208b63ae6ec0d6a9e1491889e"},"schema_version":"1.0","source":{"id":"1801.06131","kind":"arxiv","version":1}},"canonical_sha256":"5c80087baf965aaf3129258a3e1a451891ba283e1f0f89323fd30f454b2fa3d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c80087baf965aaf3129258a3e1a451891ba283e1f0f89323fd30f454b2fa3d9","first_computed_at":"2026-05-18T00:22:02.331644Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:02.331644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pXvImowr1IG2DQsbzxokJfxqBlakmse+tKZIuk5uGX6uhjrjwMqW4WTKA2RkRlxWuIBsNDK1Wzw9CHb8fcbJCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:02.332187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.06131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d702b7f10f59f79b96ca2ecc22122016cd9cbc8c44df2c0ae8c9354a83c71e54","sha256:ea6813124bd8cc032fbd8ccc4a8a9c383658ddd4875d86127dbdc55fec64f930"],"state_sha256":"893b0999049ee36abb86eab411bf25b3b4cd85ea331d676506b727a9df7e0228"}