{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IRLVG7NFJIQSDPIQJEQUVDII7S","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":"55d144ce74ee46729353944e282977c92a98a8ac4bd39005b48290b0537867d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-20T20:28:37Z","title_canon_sha256":"8067d4678924f35d69d9d0b283de97ce4c47f397787cebd948a2011058e55e93"},"schema_version":"1.0","source":{"id":"1905.08336","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.08336","created_at":"2026-05-17T23:45:43Z"},{"alias_kind":"arxiv_version","alias_value":"1905.08336v1","created_at":"2026-05-17T23:45:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08336","created_at":"2026-05-17T23:45:43Z"},{"alias_kind":"pith_short_12","alias_value":"IRLVG7NFJIQS","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IRLVG7NFJIQSDPIQ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IRLVG7NF","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:b02d52f174da50e6bd432000fd799dd8978d26be583b7a30e7300b806c1326ba","target":"graph","created_at":"2026-05-17T23:45:43Z","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 present a new non-convex model of the binary asteroid (809) Lundia. A SAGE (Shaping Asteroids with Genetic Evolution) method using disc-integrated photometry only was used for deriving physical parameters of this binary system. The model of (809) Lundia improves former system's pole solution and gives the ecliptic coordinates of the orbit pole - $\\lambda=122^{\\circ}$, $\\beta=22^{\\circ}$, $\\sigma=\\pm5^{\\circ}$ - and the orbital period of $15.41574 \\pm 0.00001$ h. For scaling our results we used effective diameter of $D_{eff} = 9.6 \\pm 1.1$ km obtained from Spitzer observations. The non-conve","authors_text":"A. Kryszczy\\'nska, A. Marciniak, F. Colas, F. Vachier, G. Apostolovska, G. Dudzi\\'nski, J. Nadolny, J. Pollock, M. Murawiecka, M. Poli\\'nska, P. Bartczak, P. Wietrzycka, R. Hirsch, T. Santana-Ros, W. Dimitrow","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-20T20:28:37Z","title":"A new non-convex model of the binary asteroid (809) Lundia obtained with the SAGE modelling technique"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08336","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:fe85cea57b43c7f37293f3b72fa85983ae896004c3134ffec43d392866d4e347","target":"record","created_at":"2026-05-17T23:45:43Z","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":"55d144ce74ee46729353944e282977c92a98a8ac4bd39005b48290b0537867d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-20T20:28:37Z","title_canon_sha256":"8067d4678924f35d69d9d0b283de97ce4c47f397787cebd948a2011058e55e93"},"schema_version":"1.0","source":{"id":"1905.08336","kind":"arxiv","version":1}},"canonical_sha256":"4457537da54a2121bd1049214a8d08fc8bcaf14998f3e3b24f93522ece70e6bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4457537da54a2121bd1049214a8d08fc8bcaf14998f3e3b24f93522ece70e6bb","first_computed_at":"2026-05-17T23:45:43.591141Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:43.591141Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BsgG5jsQwBfulfim5sreUiSA215IubwnzRO7edGTkKvq5/bov9X7YWs2VYpgdAX/ghdwISKeQGDXE97ATsVLDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:43.591779Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.08336","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe85cea57b43c7f37293f3b72fa85983ae896004c3134ffec43d392866d4e347","sha256:b02d52f174da50e6bd432000fd799dd8978d26be583b7a30e7300b806c1326ba"],"state_sha256":"87aced1fbf87b7130dc8ccb85cf50656b7b6dc96399475bb2460ca6c6be6c896"}