{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:FQVVNFH3W2PFHCUXZ775CEDE63","short_pith_number":"pith:FQVVNFH3","canonical_record":{"source":{"id":"astro-ph/0503507","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-23T20:44:12Z","cross_cats_sorted":[],"title_canon_sha256":"ff026e768597854c35074abf2acf32ff7da04fb139d19568eb913d587047fce3","abstract_canon_sha256":"b638e60fc25e6297613bbfb80cc6fb56cdfddb82c07a5f06539c7951cda723a9"},"schema_version":"1.0"},"canonical_sha256":"2c2b5694fbb69e538a97cfffd11064f6f18ed41560fbbbabc68c56e71d3a8c42","source":{"kind":"arxiv","id":"astro-ph/0503507","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0503507","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0503507v2","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0503507","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"FQVVNFH3W2PF","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_16","alias_value":"FQVVNFH3W2PFHCUX","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_8","alias_value":"FQVVNFH3","created_at":"2026-07-04T16:51:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:FQVVNFH3W2PFHCUXZ775CEDE63","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0503507","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-23T20:44:12Z","cross_cats_sorted":[],"title_canon_sha256":"ff026e768597854c35074abf2acf32ff7da04fb139d19568eb913d587047fce3","abstract_canon_sha256":"b638e60fc25e6297613bbfb80cc6fb56cdfddb82c07a5f06539c7951cda723a9"},"schema_version":"1.0"},"canonical_sha256":"2c2b5694fbb69e538a97cfffd11064f6f18ed41560fbbbabc68c56e71d3a8c42","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:51:03.595221Z","signature_b64":"dvj14syvSIFMOeWxz7a+jyVS+ZQPTshIc825bjku8Omsw2Pka1uR5FbxDXWYAWzL933Be0PuM3rBxqJLu1avBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c2b5694fbb69e538a97cfffd11064f6f18ed41560fbbbabc68c56e71d3a8c42","last_reissued_at":"2026-07-04T16:51:03.594779Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:51:03.594779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0503507","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":"2026-07-04T16:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kp0kXtgauryFHpa/HABQ1s6dXgxzmW8TUzrKszA0GTBhJKMlb9Wi5RYXsOTCbG9goJ1fTk/QUK089wCpMx+TDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:25:55.744811Z"},"content_sha256":"6cc77c34f5a4a03714a65a7d9eb815f626f1ffe1b88ba5702cbe6bd8c22ed460","schema_version":"1.0","event_id":"sha256:6cc77c34f5a4a03714a65a7d9eb815f626f1ffe1b88ba5702cbe6bd8c22ed460"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:FQVVNFH3W2PFHCUXZ775CEDE63","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A 10 micron spectroscopic survey of Herbig Ae star disks: grain growth and crystallization","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. de Koter, C. Dominik, J. Bouwman, L.B.F.M. Waters, M.E. van den Ancker, M. Min, R. van Boekel","submitted_at":"2005-03-23T20:44:12Z","abstract_excerpt":"We present spectroscopic observations of a large sample of Herbig Ae stars in the 10 micrometer spectral region. We perform compositional fits of the spectra based on properties of homogeneous as well as inhomogeneous spherical particles, and derive the mineralogy and typical grain sizes of the dust responsible for the 10 $\\mu$m emission. Several trends are reported that can constrain theoretical models of dust processing in these systems: i) none of the sources consists of fully pristine dust comparable to that found in the interstellar medium, ii) all sources with a high fraction of crystall"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0503507","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0503507/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":"2026-07-04T16:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yvdAxSzJNoNuW/oqJ/1fwohRo1HDhA8Cj33QTrqISXRNu/siFz5IEPyd/N9ozHMOpT2zZ4C93BisogJw2NKHCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:25:55.745303Z"},"content_sha256":"edcc5b421ba2e99f5a8aba1c999ca612b61b7a3620804d9b41cfbe1fdbf6f8d7","schema_version":"1.0","event_id":"sha256:edcc5b421ba2e99f5a8aba1c999ca612b61b7a3620804d9b41cfbe1fdbf6f8d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FQVVNFH3W2PFHCUXZ775CEDE63/bundle.json","state_url":"https://pith.science/pith/FQVVNFH3W2PFHCUXZ775CEDE63/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FQVVNFH3W2PFHCUXZ775CEDE63/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":"2026-08-04T21:25:55Z","links":{"resolver":"https://pith.science/pith/FQVVNFH3W2PFHCUXZ775CEDE63","bundle":"https://pith.science/pith/FQVVNFH3W2PFHCUXZ775CEDE63/bundle.json","state":"https://pith.science/pith/FQVVNFH3W2PFHCUXZ775CEDE63/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FQVVNFH3W2PFHCUXZ775CEDE63/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:FQVVNFH3W2PFHCUXZ775CEDE63","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":"b638e60fc25e6297613bbfb80cc6fb56cdfddb82c07a5f06539c7951cda723a9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-23T20:44:12Z","title_canon_sha256":"ff026e768597854c35074abf2acf32ff7da04fb139d19568eb913d587047fce3"},"schema_version":"1.0","source":{"id":"astro-ph/0503507","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0503507","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0503507v2","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0503507","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"FQVVNFH3W2PF","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_16","alias_value":"FQVVNFH3W2PFHCUX","created_at":"2026-07-04T16:51:03Z"},{"alias_kind":"pith_short_8","alias_value":"FQVVNFH3","created_at":"2026-07-04T16:51:03Z"}],"graph_snapshots":[{"event_id":"sha256:edcc5b421ba2e99f5a8aba1c999ca612b61b7a3620804d9b41cfbe1fdbf6f8d7","target":"graph","created_at":"2026-07-04T16:51:03Z","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/astro-ph/0503507/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present spectroscopic observations of a large sample of Herbig Ae stars in the 10 micrometer spectral region. We perform compositional fits of the spectra based on properties of homogeneous as well as inhomogeneous spherical particles, and derive the mineralogy and typical grain sizes of the dust responsible for the 10 $\\mu$m emission. Several trends are reported that can constrain theoretical models of dust processing in these systems: i) none of the sources consists of fully pristine dust comparable to that found in the interstellar medium, ii) all sources with a high fraction of crystall","authors_text":"A. de Koter, C. Dominik, J. Bouwman, L.B.F.M. Waters, M.E. van den Ancker, M. Min, R. van Boekel","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-03-23T20:44:12Z","title":"A 10 micron spectroscopic survey of Herbig Ae star disks: grain growth and crystallization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0503507","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":"sha256:6cc77c34f5a4a03714a65a7d9eb815f626f1ffe1b88ba5702cbe6bd8c22ed460","target":"record","created_at":"2026-07-04T16:51:03Z","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":"b638e60fc25e6297613bbfb80cc6fb56cdfddb82c07a5f06539c7951cda723a9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-23T20:44:12Z","title_canon_sha256":"ff026e768597854c35074abf2acf32ff7da04fb139d19568eb913d587047fce3"},"schema_version":"1.0","source":{"id":"astro-ph/0503507","kind":"arxiv","version":2}},"canonical_sha256":"2c2b5694fbb69e538a97cfffd11064f6f18ed41560fbbbabc68c56e71d3a8c42","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c2b5694fbb69e538a97cfffd11064f6f18ed41560fbbbabc68c56e71d3a8c42","first_computed_at":"2026-07-04T16:51:03.594779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:51:03.594779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dvj14syvSIFMOeWxz7a+jyVS+ZQPTshIc825bjku8Omsw2Pka1uR5FbxDXWYAWzL933Be0PuM3rBxqJLu1avBg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:51:03.595221Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0503507","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cc77c34f5a4a03714a65a7d9eb815f626f1ffe1b88ba5702cbe6bd8c22ed460","sha256:edcc5b421ba2e99f5a8aba1c999ca612b61b7a3620804d9b41cfbe1fdbf6f8d7"],"state_sha256":"e5a5c387f96af315de443d53a39824420d7e87ad02e5613160be12227e6b4685"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OgHs1vfop7/rljUtybEZAfoA7dFx3aj6WIq4vx+7BZY4izwVTIoREQMoL0QhHDDy/tpDaT04OQN64qWkLXW2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T21:25:55.748691Z","bundle_sha256":"1cb9edde38a9fec38ca734f77ce47251175495e12e6761de965c4d1db96a93e1"}}