{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LYOVAIFS6IRKAOWXIMVYRKMUS3","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":"9fe566517b2c8ca627f7fd524a38de116d05454f7d2c1db242f29b02ae539247","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-13T08:06:51Z","title_canon_sha256":"900b240fb49a4582f6438739ba323b9d8a7e19d198ceef0d6e3cc3ea65e38b30"},"schema_version":"1.0","source":{"id":"1503.03984","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.03984","created_at":"2026-05-18T01:59:37Z"},{"alias_kind":"arxiv_version","alias_value":"1503.03984v2","created_at":"2026-05-18T01:59:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03984","created_at":"2026-05-18T01:59:37Z"},{"alias_kind":"pith_short_12","alias_value":"LYOVAIFS6IRK","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LYOVAIFS6IRKAOWX","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LYOVAIFS","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:ab2f58cd1d7d095574aa1e156a45581721c5320feb613050c04105b1cabc28e3","target":"graph","created_at":"2026-05-18T01:59:37Z","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 constrain the structure of the circumstellar material around the post-AGB binary and RV Tauri pulsator AC Her. We want to constrain the spatial distribution of the amorphous as well as of the crystalline dust. We present very high-quality mid-IR interferometric data that were obtained with MIDI/VLTI. We analyse the MIDI data and the full SED, using the MCMax radiative transfer code, to find a good structure model of AC Her's circumbinary disk. We include a grain size distribution and midplane settling of dust self-consistently. The spatial distribution of crystalline forsterite in th","authors_text":"B. L. de Vries, G. D. Mulders, H. Van Winckel, J. Menu, M. Hillen, M. Min","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-13T08:06:51Z","title":"The evolved circumbinary disk of AC Her: a radiative transfer, interferometric and mineralogical study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03984","kind":"arxiv","version":2},"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":"sha256:47e0c928443a242dfe8af1078a24ea053b966387100a67a2adef93c2825a4820","target":"record","created_at":"2026-05-18T01:59:37Z","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":"9fe566517b2c8ca627f7fd524a38de116d05454f7d2c1db242f29b02ae539247","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-13T08:06:51Z","title_canon_sha256":"900b240fb49a4582f6438739ba323b9d8a7e19d198ceef0d6e3cc3ea65e38b30"},"schema_version":"1.0","source":{"id":"1503.03984","kind":"arxiv","version":2}},"canonical_sha256":"5e1d5020b2f222a03ad7432b88a99496c8f69a05c70fdb5d77738d9564cae357","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e1d5020b2f222a03ad7432b88a99496c8f69a05c70fdb5d77738d9564cae357","first_computed_at":"2026-05-18T01:59:37.140526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:37.140526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N54ZWo58YApQYZzNZDNCN0oEgeJ4+rikxqn0fvytuO9e50RnduGlXjCB+ozW9ubD9kgPJXXgAAhBZDOD0aPrDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:37.141190Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.03984","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47e0c928443a242dfe8af1078a24ea053b966387100a67a2adef93c2825a4820","sha256:ab2f58cd1d7d095574aa1e156a45581721c5320feb613050c04105b1cabc28e3"],"state_sha256":"753c59f50295d1cfeb1dcd4c26f6c0eac4f1b7ccd165b310fc2a18a5e34d72b4"}