{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GQNHOTLVC2W25TOGXURTJBS6UH","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":"670ccc4e3c8a346638be1550e932fb39bd91aad8305073f810b91217789379bf","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-18T22:25:43Z","title_canon_sha256":"0b8f629cf59c7ef0a02b017c8896b32dd385980a34d2b6320d3ae4088c8cbdbf"},"schema_version":"1.0","source":{"id":"2412.14378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.14378","created_at":"2026-07-05T09:51:46Z"},{"alias_kind":"arxiv_version","alias_value":"2412.14378v1","created_at":"2026-07-05T09:51:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.14378","created_at":"2026-07-05T09:51:46Z"},{"alias_kind":"pith_short_12","alias_value":"GQNHOTLVC2W2","created_at":"2026-07-05T09:51:46Z"},{"alias_kind":"pith_short_16","alias_value":"GQNHOTLVC2W25TOG","created_at":"2026-07-05T09:51:46Z"},{"alias_kind":"pith_short_8","alias_value":"GQNHOTLV","created_at":"2026-07-05T09:51:46Z"}],"graph_snapshots":[{"event_id":"sha256:a1e8f4e5ed473c9c35046fdc1ecb316e65de137d2c6868082d10bd13af245de6","target":"graph","created_at":"2026-07-05T09:51:46Z","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/2412.14378/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the initial results of MEAD (Measuring Extinction and Abundances of Dust), with a focus on the dust extinction features observed in our JWST near- and mid-infrared spectra of nine diffuse Milky Way sightlines ($1.2 \\leq A(V) \\leq 2.5$). For the first time, we find strong correlations between the 10 $\\mu$m silicate feature strength and the column densities of Mg, Fe and O in dust. This is consistent with the well-established theory that Mg- and Fe-rich silicates are responsible for this feature. We obtained an average stoichiometry of the silicate grains in our sample of Mg:Fe:O = 1.","authors_text":"Burcu G\\\"unay, Julia Roman-Duval, Karl A. Misselt, Karl D. Gordon, Marjorie Decleir, Sascha T. Zeegers","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-18T22:25:43Z","title":"A first taste of MEAD (Measuring Extinction and Abundances of Dust) -- I. Diffuse Milky Way interstellar dust extinction features in JWST infrared spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.14378","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":"sha256:1f8bd1a0993c5c35aa081e4fbb46c91c9891a7aaa5e645565c363cd03c84d01d","target":"record","created_at":"2026-07-05T09:51:46Z","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":"670ccc4e3c8a346638be1550e932fb39bd91aad8305073f810b91217789379bf","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-18T22:25:43Z","title_canon_sha256":"0b8f629cf59c7ef0a02b017c8896b32dd385980a34d2b6320d3ae4088c8cbdbf"},"schema_version":"1.0","source":{"id":"2412.14378","kind":"arxiv","version":1}},"canonical_sha256":"341a774d7516adaecdc6bd2334865ea1e488ddc68de02a8d05642e27097183ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"341a774d7516adaecdc6bd2334865ea1e488ddc68de02a8d05642e27097183ba","first_computed_at":"2026-07-05T09:51:46.456169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:51:46.456169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mhFqJKkfDRFgyghdpo6fDEQKznexpj+pQW7aIGOLd2Xabvg7VxHK3BXd7jc6i8oEUEy1rUiHc8rH6fpe8019DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:51:46.456649Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.14378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f8bd1a0993c5c35aa081e4fbb46c91c9891a7aaa5e645565c363cd03c84d01d","sha256:a1e8f4e5ed473c9c35046fdc1ecb316e65de137d2c6868082d10bd13af245de6"],"state_sha256":"128ece0dad6d9a6bfc27b227cc6d2ea9aa5001fe9ea984edafff16b84a8b9a11"}