{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:Z757DCXAMSJWKG6EBNVUW23X72","short_pith_number":"pith:Z757DCXA","canonical_record":{"source":{"id":"2303.05184","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-09T11:27:05Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"bf57243da8ca91e556887d942fd4ee22b3d7f175eefed69ad6d1fc1c2ac8c908","abstract_canon_sha256":"32b047d448ff8cd23e86dfab75caa2ba2152c3a72b70c09c49ad36ae0e8f7770"},"schema_version":"1.0"},"canonical_sha256":"cffbf18ae06493651bc40b6b4b6b77fe8304b54eea84f5a8b39e932960148930","source":{"kind":"arxiv","id":"2303.05184","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.05184","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"2303.05184v1","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.05184","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"Z757DCXAMSJW","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_16","alias_value":"Z757DCXAMSJWKG6E","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_8","alias_value":"Z757DCXA","created_at":"2026-07-05T05:49:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:Z757DCXAMSJWKG6EBNVUW23X72","target":"record","payload":{"canonical_record":{"source":{"id":"2303.05184","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-09T11:27:05Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"bf57243da8ca91e556887d942fd4ee22b3d7f175eefed69ad6d1fc1c2ac8c908","abstract_canon_sha256":"32b047d448ff8cd23e86dfab75caa2ba2152c3a72b70c09c49ad36ae0e8f7770"},"schema_version":"1.0"},"canonical_sha256":"cffbf18ae06493651bc40b6b4b6b77fe8304b54eea84f5a8b39e932960148930","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:49:38.154378Z","signature_b64":"mfe/IZyCPvhfnMvfOKGmOqyXYzDbzZq1u1Pz4+9StwXyPqIa+iV233DW0Ta39amo3OajP/5Q8P3EmT8UppO1BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cffbf18ae06493651bc40b6b4b6b77fe8304b54eea84f5a8b39e932960148930","last_reissued_at":"2026-07-05T05:49:38.153917Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:49:38.153917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.05184","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":"2026-07-05T05:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZsRLk113omr9eSqpBCivuaACB9lxBslnEOuzP8MEZ81rLk5Na6/WNQ3zRBX45a12o+7U5FPCIsFlx7TXAdiFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:13:06.266369Z"},"content_sha256":"2d5c46cdeb1819bdf9da27e22f97375d9f9b22833ef3dea87b84b61385f2f3ef","schema_version":"1.0","event_id":"sha256:2d5c46cdeb1819bdf9da27e22f97375d9f9b22833ef3dea87b84b61385f2f3ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:Z757DCXAMSJWKG6EBNVUW23X72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mechanisms of SiO oxidation: Implications for dust formation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"David Gobrecht, Rosendo Valero, Stefan Andersson","submitted_at":"2023-03-09T11:27:05Z","abstract_excerpt":"Reactions of SiO molecules have been postulated to initiate efficient formation of silicate dust particles in outflows around dying (AGB) stars. Both OH radicals and H$_2$O molecules can be present in these environments and their reactions with SiO and the smallest SiO cluster, Si$_2$O$_2$, affect the efficiency of eventual dust formation. Rate coefficients of gas-phase oxidation and clustering reactions of SiO, Si$_2$O$_2$ and Si$_2$O$_3$ have been calculated using master equation calculations based on density functional theory calculations. The calculations show that the reactions involving "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.05184","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.05184/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zIFqdrEJD5+N3ngGQ+QS+6NnhCamEqOzjGsp0H9bepOsg3HYq8Q62J1DWQvA2mQsb67dcvnS19aB4WZZ1ovGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:13:06.267993Z"},"content_sha256":"f28b84946a6a98430f2d4ad2b88cfd6015be86a2b84cedfaf19b6ec504270ae8","schema_version":"1.0","event_id":"sha256:f28b84946a6a98430f2d4ad2b88cfd6015be86a2b84cedfaf19b6ec504270ae8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z757DCXAMSJWKG6EBNVUW23X72/bundle.json","state_url":"https://pith.science/pith/Z757DCXAMSJWKG6EBNVUW23X72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z757DCXAMSJWKG6EBNVUW23X72/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":"2026-08-23T17:13:06Z","links":{"resolver":"https://pith.science/pith/Z757DCXAMSJWKG6EBNVUW23X72","bundle":"https://pith.science/pith/Z757DCXAMSJWKG6EBNVUW23X72/bundle.json","state":"https://pith.science/pith/Z757DCXAMSJWKG6EBNVUW23X72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z757DCXAMSJWKG6EBNVUW23X72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Z757DCXAMSJWKG6EBNVUW23X72","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":"32b047d448ff8cd23e86dfab75caa2ba2152c3a72b70c09c49ad36ae0e8f7770","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-09T11:27:05Z","title_canon_sha256":"bf57243da8ca91e556887d942fd4ee22b3d7f175eefed69ad6d1fc1c2ac8c908"},"schema_version":"1.0","source":{"id":"2303.05184","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.05184","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"2303.05184v1","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.05184","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"Z757DCXAMSJW","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_16","alias_value":"Z757DCXAMSJWKG6E","created_at":"2026-07-05T05:49:38Z"},{"alias_kind":"pith_short_8","alias_value":"Z757DCXA","created_at":"2026-07-05T05:49:38Z"}],"graph_snapshots":[{"event_id":"sha256:f28b84946a6a98430f2d4ad2b88cfd6015be86a2b84cedfaf19b6ec504270ae8","target":"graph","created_at":"2026-07-05T05:49:38Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2303.05184/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reactions of SiO molecules have been postulated to initiate efficient formation of silicate dust particles in outflows around dying (AGB) stars. Both OH radicals and H$_2$O molecules can be present in these environments and their reactions with SiO and the smallest SiO cluster, Si$_2$O$_2$, affect the efficiency of eventual dust formation. Rate coefficients of gas-phase oxidation and clustering reactions of SiO, Si$_2$O$_2$ and Si$_2$O$_3$ have been calculated using master equation calculations based on density functional theory calculations. The calculations show that the reactions involving ","authors_text":"David Gobrecht, Rosendo Valero, Stefan Andersson","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-09T11:27:05Z","title":"Mechanisms of SiO oxidation: Implications for dust formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.05184","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":"sha256:2d5c46cdeb1819bdf9da27e22f97375d9f9b22833ef3dea87b84b61385f2f3ef","target":"record","created_at":"2026-07-05T05:49:38Z","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":"32b047d448ff8cd23e86dfab75caa2ba2152c3a72b70c09c49ad36ae0e8f7770","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-09T11:27:05Z","title_canon_sha256":"bf57243da8ca91e556887d942fd4ee22b3d7f175eefed69ad6d1fc1c2ac8c908"},"schema_version":"1.0","source":{"id":"2303.05184","kind":"arxiv","version":1}},"canonical_sha256":"cffbf18ae06493651bc40b6b4b6b77fe8304b54eea84f5a8b39e932960148930","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cffbf18ae06493651bc40b6b4b6b77fe8304b54eea84f5a8b39e932960148930","first_computed_at":"2026-07-05T05:49:38.153917Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:49:38.153917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mfe/IZyCPvhfnMvfOKGmOqyXYzDbzZq1u1Pz4+9StwXyPqIa+iV233DW0Ta39amo3OajP/5Q8P3EmT8UppO1BA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:49:38.154378Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.05184","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d5c46cdeb1819bdf9da27e22f97375d9f9b22833ef3dea87b84b61385f2f3ef","sha256:f28b84946a6a98430f2d4ad2b88cfd6015be86a2b84cedfaf19b6ec504270ae8"],"state_sha256":"92604fb975763189f5423abdff8cea13cef93b64444ccb7d75c319bf814e4085"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gxKQJmwXFQ4UGyV/tL6gQC+yuiBqf/V2QFyRRNS+euqsLAPOdNdc6VOucXW45EXlu4l2sEpeNVgLReFipvLkDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T17:13:06.274472Z","bundle_sha256":"5e54993babc90d4efe8930e846e0e51cb34d99d99ca15a772929b920b7d35524"}}