{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:CGFLP2TNF6C43OVK2JKMWZDZ2X","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":"0fb419892bfb6d8f1e342fea1fb5ea3ad576b5c8e3f45bb014b4da0728e9ddec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-11-24T09:10:32Z","title_canon_sha256":"6fe29cd2a8500a25a81d8dc10795a3f7770c281806882e9f3cdef147a326a1b6"},"schema_version":"1.0","source":{"id":"1111.5699","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.5699","created_at":"2026-05-18T01:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1111.5699v1","created_at":"2026-05-18T01:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.5699","created_at":"2026-05-18T01:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"CGFLP2TNF6C4","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CGFLP2TNF6C43OVK","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CGFLP2TN","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:42cc137fb9d5ef03cbd0e387443a339e02c4f52dbc42968ce41c98fb97f5c0cd","target":"graph","created_at":"2026-05-18T01:59:25Z","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":"Main Belt comets represent a recently discovered class of objects. They are quite intriguing because, while having a Tisserand invariant value higher than 3, are showing cometary activity. We study the activity of the Main Belt comets making the assumption that they are icy-bodies and that the activity has been triggered by an impact. We determine the characteristics of this activity and if the nowadays impact rate in the Main Asteroid Belt is compatible with the hypothesis of an activity triggered by a recent impact. Due to the fact that the Main Belt comets can be considered as a kind of com","authors_text":"Angioletta Coradini, Eleonora Ammannito, Maria Cristina De Sanctis, Maria Teresa Capria, Simone Marchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-11-24T09:10:32Z","title":"The activity of Main Belt comets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.5699","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:a8291cad0fc673c2aed8bd588a76e13e4c26b656c341353ce14a7ce377c19734","target":"record","created_at":"2026-05-18T01:59:25Z","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":"0fb419892bfb6d8f1e342fea1fb5ea3ad576b5c8e3f45bb014b4da0728e9ddec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-11-24T09:10:32Z","title_canon_sha256":"6fe29cd2a8500a25a81d8dc10795a3f7770c281806882e9f3cdef147a326a1b6"},"schema_version":"1.0","source":{"id":"1111.5699","kind":"arxiv","version":1}},"canonical_sha256":"118ab7ea6d2f85cdbaaad254cb6479d5ec1a330a93108f66d423f8e4a181a02f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"118ab7ea6d2f85cdbaaad254cb6479d5ec1a330a93108f66d423f8e4a181a02f","first_computed_at":"2026-05-18T01:59:25.946497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:25.946497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WoxYj+khhm5utXVEcyDfR5tfoo8ytMiGqFxkrjsR7yuKoZ+If2VPzC97ZYkLMwYXgT2OLg1gpkrW1TVxLcC8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:25.947191Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.5699","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8291cad0fc673c2aed8bd588a76e13e4c26b656c341353ce14a7ce377c19734","sha256:42cc137fb9d5ef03cbd0e387443a339e02c4f52dbc42968ce41c98fb97f5c0cd"],"state_sha256":"ad71757263925f0f89accb63951fc44caed568f63c4d2cddf944b69d909e8c61"}