{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PPOOVV32CX6YVCHLQDZCDMIP2T","short_pith_number":"pith:PPOOVV32","canonical_record":{"source":{"id":"1107.0909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-05T15:51:31Z","cross_cats_sorted":[],"title_canon_sha256":"b1112714490e95952a6ade6cd9e393bf8b111d0e1a26cc975ea1b2c5f6b1dd97","abstract_canon_sha256":"fc65998cacb81bd880523a855b9c32b17c82bedbc13830fff8c0fb8ad59ed09c"},"schema_version":"1.0"},"canonical_sha256":"7bdcead77a15fd8a88eb80f221b10fd4c12468de9da5cee24a14b81fc1ef0b46","source":{"kind":"arxiv","id":"1107.0909","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.0909","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"arxiv_version","alias_value":"1107.0909v1","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.0909","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"pith_short_12","alias_value":"PPOOVV32CX6Y","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PPOOVV32CX6YVCHL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PPOOVV32","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PPOOVV32CX6YVCHLQDZCDMIP2T","target":"record","payload":{"canonical_record":{"source":{"id":"1107.0909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-05T15:51:31Z","cross_cats_sorted":[],"title_canon_sha256":"b1112714490e95952a6ade6cd9e393bf8b111d0e1a26cc975ea1b2c5f6b1dd97","abstract_canon_sha256":"fc65998cacb81bd880523a855b9c32b17c82bedbc13830fff8c0fb8ad59ed09c"},"schema_version":"1.0"},"canonical_sha256":"7bdcead77a15fd8a88eb80f221b10fd4c12468de9da5cee24a14b81fc1ef0b46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:24.609685Z","signature_b64":"QY7ShBhQZoXp2MugAen5CkBx9ai5b+iuHmYfVF+41nxxPRJHjdjGocMuaCCAllReA7OzOpdRxivupFe1ZNueDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bdcead77a15fd8a88eb80f221b10fd4c12468de9da5cee24a14b81fc1ef0b46","last_reissued_at":"2026-05-18T02:01:24.609098Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:24.609098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.0909","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bt8CUh1C8ROwhVkfN0c9HGpkWBZrNeLoA//kvckWZHBcs/DIJ7MVNtqI2HAaQFfsd24Mzax38GkUrTeSXikYCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:52:14.811693Z"},"content_sha256":"a4e4f65e42df9240eada3a90678c5ccc8a3fefb31eb1b8cae85851d01b51227e","schema_version":"1.0","event_id":"sha256:a4e4f65e42df9240eada3a90678c5ccc8a3fefb31eb1b8cae85851d01b51227e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PPOOVV32CX6YVCHLQDZCDMIP2T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mid-infrared interferometric monitoring of evolved stars - The dust shell around the Mira variable RR Aql at 13 epochs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. A. Boboltz, E. Fossat, I. Karovicova, K. Ohnaka, M. Scholz, M. Wittkowski","submitted_at":"2011-07-05T15:51:31Z","abstract_excerpt":"We obtained 13 epochs of mid-infrared interferometry with the MIDI instrument at the VLTI between April 2004 and July 2007, covering pulsation phases 0.45-0.85 within four cycles. The data are modeled with a radiative transfer model of the dust shell where the central stellar intensity profile is described by a series of dust-free dynamic model atmospheres based on self-excited pulsation models. We examined two dust species, silicate and Al2O3 grains. We performed model simulations using variations in model phase and dust shell parameters to investigate the expected variability of our photomet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.0909","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDLJLgTflGh2jK4Jtvu6j5C+Q/Exy498tcfyzZgPaHAA6BnfwVE5+Tt5F3UhIvRS1q1PyigPcsg7S9MhOMqtBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:52:14.812367Z"},"content_sha256":"2f4f917f699b6f958f84ca7c82e21592af2d47f40f1c3f1204e19624d7f4bccc","schema_version":"1.0","event_id":"sha256:2f4f917f699b6f958f84ca7c82e21592af2d47f40f1c3f1204e19624d7f4bccc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/bundle.json","state_url":"https://pith.science/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T18:52:14Z","links":{"resolver":"https://pith.science/pith/PPOOVV32CX6YVCHLQDZCDMIP2T","bundle":"https://pith.science/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/bundle.json","state":"https://pith.science/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PPOOVV32CX6YVCHLQDZCDMIP2T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PPOOVV32CX6YVCHLQDZCDMIP2T","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":"fc65998cacb81bd880523a855b9c32b17c82bedbc13830fff8c0fb8ad59ed09c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-05T15:51:31Z","title_canon_sha256":"b1112714490e95952a6ade6cd9e393bf8b111d0e1a26cc975ea1b2c5f6b1dd97"},"schema_version":"1.0","source":{"id":"1107.0909","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.0909","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"arxiv_version","alias_value":"1107.0909v1","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.0909","created_at":"2026-05-18T02:01:24Z"},{"alias_kind":"pith_short_12","alias_value":"PPOOVV32CX6Y","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PPOOVV32CX6YVCHL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PPOOVV32","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:2f4f917f699b6f958f84ca7c82e21592af2d47f40f1c3f1204e19624d7f4bccc","target":"graph","created_at":"2026-05-18T02:01:24Z","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 obtained 13 epochs of mid-infrared interferometry with the MIDI instrument at the VLTI between April 2004 and July 2007, covering pulsation phases 0.45-0.85 within four cycles. The data are modeled with a radiative transfer model of the dust shell where the central stellar intensity profile is described by a series of dust-free dynamic model atmospheres based on self-excited pulsation models. We examined two dust species, silicate and Al2O3 grains. We performed model simulations using variations in model phase and dust shell parameters to investigate the expected variability of our photomet","authors_text":"D. A. Boboltz, E. Fossat, I. Karovicova, K. Ohnaka, M. Scholz, M. Wittkowski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-05T15:51:31Z","title":"Mid-infrared interferometric monitoring of evolved stars - The dust shell around the Mira variable RR Aql at 13 epochs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.0909","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:a4e4f65e42df9240eada3a90678c5ccc8a3fefb31eb1b8cae85851d01b51227e","target":"record","created_at":"2026-05-18T02:01:24Z","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":"fc65998cacb81bd880523a855b9c32b17c82bedbc13830fff8c0fb8ad59ed09c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-05T15:51:31Z","title_canon_sha256":"b1112714490e95952a6ade6cd9e393bf8b111d0e1a26cc975ea1b2c5f6b1dd97"},"schema_version":"1.0","source":{"id":"1107.0909","kind":"arxiv","version":1}},"canonical_sha256":"7bdcead77a15fd8a88eb80f221b10fd4c12468de9da5cee24a14b81fc1ef0b46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bdcead77a15fd8a88eb80f221b10fd4c12468de9da5cee24a14b81fc1ef0b46","first_computed_at":"2026-05-18T02:01:24.609098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:24.609098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QY7ShBhQZoXp2MugAen5CkBx9ai5b+iuHmYfVF+41nxxPRJHjdjGocMuaCCAllReA7OzOpdRxivupFe1ZNueDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:24.609685Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.0909","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4e4f65e42df9240eada3a90678c5ccc8a3fefb31eb1b8cae85851d01b51227e","sha256:2f4f917f699b6f958f84ca7c82e21592af2d47f40f1c3f1204e19624d7f4bccc"],"state_sha256":"bc826a6966a640c20961d88fa882bc51e6653c6932d41f72bb6be5f0709dae9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"trhBaOVV5bkY/ZfEg4TJMNHyBQfUJwKVJMsSujlxKJ5OQvVoFYHnVJwvdqQYFF+gihIZ5VAgxwp4PuE8kUFGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:52:14.815954Z","bundle_sha256":"51d06b0b87366f67914f913306ee99ebb2fe9a52fe8107166ea06e1a91e1c556"}}