{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VM24PKZNUXDUASJANZA4WNFMDX","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":"e91048f1a9acdcd7420f459e819fdfde8c84d3814c0f152425c16eeb73a4b1ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-14T17:03:37Z","title_canon_sha256":"cb7fee2b4609652e52bb6e7ed4034d16af930db4f999b98031d829f9b0a7df10"},"schema_version":"1.0","source":{"id":"1903.06130","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.06130","created_at":"2026-05-17T23:44:11Z"},{"alias_kind":"arxiv_version","alias_value":"1903.06130v1","created_at":"2026-05-17T23:44:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06130","created_at":"2026-05-17T23:44:11Z"},{"alias_kind":"pith_short_12","alias_value":"VM24PKZNUXDU","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VM24PKZNUXDUASJA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VM24PKZN","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:b0448250e6ddbb0b670a49c40320994021bf7cfbce78218ac6edd179ad2f1d0c","target":"graph","created_at":"2026-05-17T23:44:11Z","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 aim to explore two exozodiacal dust production mechanisms, first re-investigating the Poynting-Robertson drag pile-up scenario, and then elaborating on the less explored, but promising exocometary dust delivery scenario. We developped a new versatile, numerical model that calculates the dust dynamics, with non orbit-averaged equations for the grains close to the star. The model includes dust sublimation and incorporates a radiative transfer code for direct comparison to the observations. We consider in this study four stellar types, three dust compositions, and we assume a parent belt at 50","authors_text":"\\'Elie Sezestre, Jean-Charles Augereau, Philippe Th\\'ebault","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-14T17:03:37Z","title":"Hot exozodiacal dust: an exocometary origin?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06130","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":"sha256:1e66e7acfe74f08a650aabc99420fecebcd1c4fa5e511437703af8d47e714a53","target":"record","created_at":"2026-05-17T23:44:11Z","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":"e91048f1a9acdcd7420f459e819fdfde8c84d3814c0f152425c16eeb73a4b1ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-14T17:03:37Z","title_canon_sha256":"cb7fee2b4609652e52bb6e7ed4034d16af930db4f999b98031d829f9b0a7df10"},"schema_version":"1.0","source":{"id":"1903.06130","kind":"arxiv","version":1}},"canonical_sha256":"ab35c7ab2da5c74049206e41cb34ac1df3d52351a116f0cbb2f8f155aa956953","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab35c7ab2da5c74049206e41cb34ac1df3d52351a116f0cbb2f8f155aa956953","first_computed_at":"2026-05-17T23:44:11.747405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:11.747405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vgOszYJRLg3gAIPGrpFmYHg5ttnsQZxln8Wh4/XfLhpGNrShtSShikONeN9VAbNEqCJaPHzfzHBU8mNJjb0DBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:11.747948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.06130","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e66e7acfe74f08a650aabc99420fecebcd1c4fa5e511437703af8d47e714a53","sha256:b0448250e6ddbb0b670a49c40320994021bf7cfbce78218ac6edd179ad2f1d0c"],"state_sha256":"4fd0151255767a1f485bdc79a865cce38a054226da39f36a3d654fb50b55ad41"}