{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:FTFENODVWOEQVZ6RNIMYLKOVNC","short_pith_number":"pith:FTFENODV","schema_version":"1.0","canonical_sha256":"2cca46b875b3890ae7d16a1985a9d56882740c6c1d3355d0e108fbce63349240","source":{"kind":"arxiv","id":"astro-ph/9904034","version":1},"attestation_state":"computed","paper":{"title":"Mid-infrared spectra of late-type stars: Long-term evolution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"J. D. Monnier, T. R. Geballe, W. C. Danchi","submitted_at":"1999-04-02T19:49:49Z","abstract_excerpt":"Recent ground-based mid-infrared spectra of 29 late-type stars, most with substantial dust shells, are compared to ground-based spectra of these stars from the 1960s and 1970s and to IRAS-LRS spectra obtained in 1983. The spectra of about half the stars show no detectable changes, implying that their distributions of circumstellar material and associated dust grain properties have changed little over this time interval. However, many of the stars with strong silicate features showed marked changes. In nearly all cases the silicate peak has strengthened with respect to the underlying continuum,"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/9904034","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-02T19:49:49Z","cross_cats_sorted":[],"title_canon_sha256":"e81aff006bba92b971cf2625e81d8091f705c5ae4832adcf35e79f20af2be358","abstract_canon_sha256":"fab83b68566bed2388675fb5255b63a43622b3c56aba386146557d07a6b3ed49"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:10:51.948686Z","signature_b64":"BV4prOnif2jo6Ri7doIsZwpI+CBnPoycslN8W8oADm+0nfj73KeOsbHR8WcJkhERynQSHvB0kXedXmyecGOGCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cca46b875b3890ae7d16a1985a9d56882740c6c1d3355d0e108fbce63349240","last_reissued_at":"2026-07-04T16:10:51.948336Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:10:51.948336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mid-infrared spectra of late-type stars: Long-term evolution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"J. D. Monnier, T. R. Geballe, W. C. Danchi","submitted_at":"1999-04-02T19:49:49Z","abstract_excerpt":"Recent ground-based mid-infrared spectra of 29 late-type stars, most with substantial dust shells, are compared to ground-based spectra of these stars from the 1960s and 1970s and to IRAS-LRS spectra obtained in 1983. The spectra of about half the stars show no detectable changes, implying that their distributions of circumstellar material and associated dust grain properties have changed little over this time interval. However, many of the stars with strong silicate features showed marked changes. In nearly all cases the silicate peak has strengthened with respect to the underlying continuum,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9904034","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/astro-ph/9904034/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9904034","created_at":"2026-07-04T16:10:51.948393+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9904034v1","created_at":"2026-07-04T16:10:51.948393+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9904034","created_at":"2026-07-04T16:10:51.948393+00:00"},{"alias_kind":"pith_short_12","alias_value":"FTFENODVWOEQ","created_at":"2026-07-04T16:10:51.948393+00:00"},{"alias_kind":"pith_short_16","alias_value":"FTFENODVWOEQVZ6R","created_at":"2026-07-04T16:10:51.948393+00:00"},{"alias_kind":"pith_short_8","alias_value":"FTFENODV","created_at":"2026-07-04T16:10:51.948393+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC","json":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC.json","graph_json":"https://pith.science/api/pith-number/FTFENODVWOEQVZ6RNIMYLKOVNC/graph.json","events_json":"https://pith.science/api/pith-number/FTFENODVWOEQVZ6RNIMYLKOVNC/events.json","paper":"https://pith.science/paper/FTFENODV"},"agent_actions":{"view_html":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC","download_json":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC.json","view_paper":"https://pith.science/paper/FTFENODV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9904034&json=true","fetch_graph":"https://pith.science/api/pith-number/FTFENODVWOEQVZ6RNIMYLKOVNC/graph.json","fetch_events":"https://pith.science/api/pith-number/FTFENODVWOEQVZ6RNIMYLKOVNC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC/action/storage_attestation","attest_author":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC/action/author_attestation","sign_citation":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC/action/citation_signature","submit_replication":"https://pith.science/pith/FTFENODVWOEQVZ6RNIMYLKOVNC/action/replication_record"}},"created_at":"2026-07-04T16:10:51.948393+00:00","updated_at":"2026-07-04T16:10:51.948393+00:00"}