{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:37RSVBEMT44II3MHPZD3YUR34U","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":"3b3d9a7fcae4f0345036716cb957a448070b067915817aa84ae1281b0b010e40","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-05-30T10:50:58Z","title_canon_sha256":"e34cca7260eed4398604c848e6f4e9782f263f5766f2c5356ea89de1c59eb2c1"},"schema_version":"1.0","source":{"id":"1705.10540","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.10540","created_at":"2026-05-18T00:41:58Z"},{"alias_kind":"arxiv_version","alias_value":"1705.10540v1","created_at":"2026-05-18T00:41:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.10540","created_at":"2026-05-18T00:41:58Z"},{"alias_kind":"pith_short_12","alias_value":"37RSVBEMT44I","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"37RSVBEMT44II3MH","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"37RSVBEM","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:5b3ad43cd94403eabe7cb85d1b54f206a8dfd812e4250dd1be07904f6fa11fde","target":"graph","created_at":"2026-05-18T00:41:58Z","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 explore the hypothesis that the Eureka family of sub-km asteroids in the L5 region of Mars could have formed in a collision. We estimate the size distribution index from available information on family members; model the orbital dispersion of collisional fragments; and carry out a formal calculation of the collisional lifetime as a function of size. We find that, as initially conjectured by Rivkin et al (2003), the collisional lifetime of objects the size of (5261) Eureka is at least a few Gyr, significantly longer than for similar-sized Main Belt asteroids. In contrast, the observed degree","authors_text":"Alberto Cellino, Aldo Dell'Oro, Apostolos A. Christou, Galin Borisov, Stefano Bagnulo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-05-30T10:50:58Z","title":"Is the Eureka cluster a collisional family of Mars Trojan asteroids?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.10540","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:ec0b7718db99c53687413e795ec71b7a367be523e47e43d64246db5289155ec5","target":"record","created_at":"2026-05-18T00:41:58Z","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":"3b3d9a7fcae4f0345036716cb957a448070b067915817aa84ae1281b0b010e40","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-05-30T10:50:58Z","title_canon_sha256":"e34cca7260eed4398604c848e6f4e9782f263f5766f2c5356ea89de1c59eb2c1"},"schema_version":"1.0","source":{"id":"1705.10540","kind":"arxiv","version":1}},"canonical_sha256":"dfe32a848c9f38846d877e47bc523be508791995a3d97f0b3121e68633a95ef0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dfe32a848c9f38846d877e47bc523be508791995a3d97f0b3121e68633a95ef0","first_computed_at":"2026-05-18T00:41:58.814788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:58.814788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CIteTvNu7yylsUzT2VGRFVhUeO6IGMyacWRJu6HwVSq2STGdhNO7h/m8vUyo1jq62XxtEejkEcOXU9Z8j0uWBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:58.815519Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.10540","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec0b7718db99c53687413e795ec71b7a367be523e47e43d64246db5289155ec5","sha256:5b3ad43cd94403eabe7cb85d1b54f206a8dfd812e4250dd1be07904f6fa11fde"],"state_sha256":"e7aac69429aab9fbfb8ccaa7a902d71f009510788807fa03737dc8b49c7cea8c"}