{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:OWVRWG6GVQRXXJQ3ROB7TAIRUU","short_pith_number":"pith:OWVRWG6G","canonical_record":{"source":{"id":"1704.05237","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-18T08:50:27Z","cross_cats_sorted":[],"title_canon_sha256":"e286248a993b8cca3b19ecbc8d25ce7460b555963c10ad385bfc37299b4cd773","abstract_canon_sha256":"210e764e5f22ceccc15e3b3b3bfd06b2ee1801e47b1c1765568b06b36b93d2c7"},"schema_version":"1.0"},"canonical_sha256":"75ab1b1bc6ac237ba61b8b83f98111a530fd28432222a145193e078d425714cd","source":{"kind":"arxiv","id":"1704.05237","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05237","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05237v2","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05237","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"pith_short_12","alias_value":"OWVRWG6GVQRX","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OWVRWG6GVQRXXJQ3","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OWVRWG6G","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:OWVRWG6GVQRXXJQ3ROB7TAIRUU","target":"record","payload":{"canonical_record":{"source":{"id":"1704.05237","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-18T08:50:27Z","cross_cats_sorted":[],"title_canon_sha256":"e286248a993b8cca3b19ecbc8d25ce7460b555963c10ad385bfc37299b4cd773","abstract_canon_sha256":"210e764e5f22ceccc15e3b3b3bfd06b2ee1801e47b1c1765568b06b36b93d2c7"},"schema_version":"1.0"},"canonical_sha256":"75ab1b1bc6ac237ba61b8b83f98111a530fd28432222a145193e078d425714cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:15.950862Z","signature_b64":"HxNoniSM9hX0An0k8ajSr+kzfFWUz28vGUZRbfikbaEjD6ZGW6AZt8/XVIL0o8Y/goMgq/furMe0QJaLxUBwBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75ab1b1bc6ac237ba61b8b83f98111a530fd28432222a145193e078d425714cd","last_reissued_at":"2026-05-18T00:28:15.950121Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:15.950121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.05237","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:28:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6P4+Y5oliUJAAikPFdKdX/UAMGzQFECPkHcET9VKX2l+4CtgjSADnzw2Zv6BrL1bgQAJc99bPNX+VnPP5RQbDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:55:49.532269Z"},"content_sha256":"b19eebc34f7aec664daa4124e372ea87c33ca4262159c7ddad60eccf67c6c5e2","schema_version":"1.0","event_id":"sha256:b19eebc34f7aec664daa4124e372ea87c33ca4262159c7ddad60eccf67c6c5e2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:OWVRWG6GVQRXXJQ3ROB7TAIRUU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tracing the phase transition of Al-bearing species from molecules to dust in AGB winds. Constraining the presence of gas-phase (Al2O3)n clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.M.S. Richards, D. Gobrecht, E. De Beck, J.A. Nuth, J. Bakker, L.B.F.M. Waters, L. Decin, M. Van de Sande, T. Danilovich, T. Khouri, W. Homan","submitted_at":"2017-04-18T08:50:27Z","abstract_excerpt":"(abbreviated) We aim to constrain the dust formation histories in the winds of oxygen-rich AGB stars. We have obtained ALMA observations with a spatial resolution of 120x150 mas tracing the dust formation region of a low mass-loss rate and a high mass-loss rate AGB star, R Dor and IK Tau. Emission line profiles of AlO, AlOH and AlCl are detected and are used to derive a lower limit of atomic aluminium incorporated in molecules. We show that the gas-phase aluminium chemistry is completely different in both stars, with a remarkable difference in the AlO and AlOH abundance stratification. The amo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05237","kind":"arxiv","version":2},"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":"2026-05-18T00:28:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QVV/zwG3otd2nQmTA7FXV5RCqB4fn3FG8qnuKiLOJ1pD8Uxy2ZqoDONKbIM7lilzj61ZyCEst/ou8Z5ooHdSBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:55:49.532949Z"},"content_sha256":"dd8260bf3558b62c150a85dc33d6efd656cec0493b375ecf3835f22e4fcd2e14","schema_version":"1.0","event_id":"sha256:dd8260bf3558b62c150a85dc33d6efd656cec0493b375ecf3835f22e4fcd2e14"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/bundle.json","state_url":"https://pith.science/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/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":"2026-05-26T20:55:49Z","links":{"resolver":"https://pith.science/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU","bundle":"https://pith.science/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/bundle.json","state":"https://pith.science/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OWVRWG6GVQRXXJQ3ROB7TAIRUU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OWVRWG6GVQRXXJQ3ROB7TAIRUU","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":"210e764e5f22ceccc15e3b3b3bfd06b2ee1801e47b1c1765568b06b36b93d2c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-18T08:50:27Z","title_canon_sha256":"e286248a993b8cca3b19ecbc8d25ce7460b555963c10ad385bfc37299b4cd773"},"schema_version":"1.0","source":{"id":"1704.05237","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05237","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05237v2","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05237","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"pith_short_12","alias_value":"OWVRWG6GVQRX","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OWVRWG6GVQRXXJQ3","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OWVRWG6G","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:dd8260bf3558b62c150a85dc33d6efd656cec0493b375ecf3835f22e4fcd2e14","target":"graph","created_at":"2026-05-18T00:28:15Z","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":"(abbreviated) We aim to constrain the dust formation histories in the winds of oxygen-rich AGB stars. We have obtained ALMA observations with a spatial resolution of 120x150 mas tracing the dust formation region of a low mass-loss rate and a high mass-loss rate AGB star, R Dor and IK Tau. Emission line profiles of AlO, AlOH and AlCl are detected and are used to derive a lower limit of atomic aluminium incorporated in molecules. We show that the gas-phase aluminium chemistry is completely different in both stars, with a remarkable difference in the AlO and AlOH abundance stratification. The amo","authors_text":"A.M.S. Richards, D. Gobrecht, E. De Beck, J.A. Nuth, J. Bakker, L.B.F.M. Waters, L. Decin, M. Van de Sande, T. Danilovich, T. Khouri, W. Homan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-18T08:50:27Z","title":"Tracing the phase transition of Al-bearing species from molecules to dust in AGB winds. Constraining the presence of gas-phase (Al2O3)n clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05237","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:b19eebc34f7aec664daa4124e372ea87c33ca4262159c7ddad60eccf67c6c5e2","target":"record","created_at":"2026-05-18T00:28:15Z","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":"210e764e5f22ceccc15e3b3b3bfd06b2ee1801e47b1c1765568b06b36b93d2c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-18T08:50:27Z","title_canon_sha256":"e286248a993b8cca3b19ecbc8d25ce7460b555963c10ad385bfc37299b4cd773"},"schema_version":"1.0","source":{"id":"1704.05237","kind":"arxiv","version":2}},"canonical_sha256":"75ab1b1bc6ac237ba61b8b83f98111a530fd28432222a145193e078d425714cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75ab1b1bc6ac237ba61b8b83f98111a530fd28432222a145193e078d425714cd","first_computed_at":"2026-05-18T00:28:15.950121Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:15.950121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HxNoniSM9hX0An0k8ajSr+kzfFWUz28vGUZRbfikbaEjD6ZGW6AZt8/XVIL0o8Y/goMgq/furMe0QJaLxUBwBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:15.950862Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.05237","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b19eebc34f7aec664daa4124e372ea87c33ca4262159c7ddad60eccf67c6c5e2","sha256:dd8260bf3558b62c150a85dc33d6efd656cec0493b375ecf3835f22e4fcd2e14"],"state_sha256":"5f2995217e9fe85fc1c04c754c6bbe96b859e02a5c94c1f997b439f2497422a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wmxAugm0YaHeqniBUYs1yo7cTZaK0hdtnMCAp9M3Gtzu1LYSF1PYh98vOcOR5UEhLFgkAt4/9VnYvEJjLYBzAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:55:49.536503Z","bundle_sha256":"27baf5d25ae181c60cbac9b427e7cafb5bac00458e67264c9431b68086048a13"}}