{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:SR3YIFTBYFFDT4PAQLSPNAHXF6","short_pith_number":"pith:SR3YIFTB","canonical_record":{"source":{"id":"2109.09327","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-20T07:11:00Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"9e4ebab11edb99bc84f0b67a09489a9ab88584c2d101d7edaccb2ae75d9c632e","abstract_canon_sha256":"6bf4d6c1882dc6bdfebffa203a7a2649d3c9fdb18221db54fb71e2b5bc2e1688"},"schema_version":"1.0"},"canonical_sha256":"9477841661c14a39f1e082e4f680f72f919327732bb934577b1d438533db3c7d","source":{"kind":"arxiv","id":"2109.09327","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.09327","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"2109.09327v2","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.09327","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"SR3YIFTBYFFD","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"SR3YIFTBYFFDT4PA","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"SR3YIFTB","created_at":"2026-07-05T04:26:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:SR3YIFTBYFFDT4PAQLSPNAHXF6","target":"record","payload":{"canonical_record":{"source":{"id":"2109.09327","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-20T07:11:00Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"9e4ebab11edb99bc84f0b67a09489a9ab88584c2d101d7edaccb2ae75d9c632e","abstract_canon_sha256":"6bf4d6c1882dc6bdfebffa203a7a2649d3c9fdb18221db54fb71e2b5bc2e1688"},"schema_version":"1.0"},"canonical_sha256":"9477841661c14a39f1e082e4f680f72f919327732bb934577b1d438533db3c7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:26:33.901856Z","signature_b64":"i4ae1Yi3HeiBdP6YwmnKbfucJosp3B5BkNlkB6qfRrpaTiNmxsqEzTIn+4ASvUQudj4gMXB4xvCeTORFpq8wBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9477841661c14a39f1e082e4f680f72f919327732bb934577b1d438533db3c7d","last_reissued_at":"2026-07-05T04:26:33.901457Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:26:33.901457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.09327","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":"2026-07-05T04:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AD0WlOkhlOgRdZZRM075ci5yXXyjBVz0y1ee01tZ4skQMUbqZAF9G9hsJuw294DTT5JqxpMzkkdQgpq7C/x/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:31:01.128434Z"},"content_sha256":"6aad53f8491b7888f27b398104dfcd7e9955e89dd06bcb826b5bc4117184c5f2","schema_version":"1.0","event_id":"sha256:6aad53f8491b7888f27b398104dfcd7e9955e89dd06bcb826b5bc4117184c5f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:SR3YIFTBYFFDT4PAQLSPNAHXF6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reliable stellar abundances of individual stars with the MUSE integral-field spectrograph","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Boquan Chen, Joss Bland-Hawthorn, Maosheng Xiang, Michael R. Hayden, Sanjib Sharma, Yuan-Sen Ting, Zixian Wang (Purmortal)","submitted_at":"2021-09-20T07:11:00Z","abstract_excerpt":"We present a novel approach to deriving stellar labels for stars observed in MUSE fields making use of data-driven machine learning methods. Taking advantage of the comparable spectral properties (resolution, wavelength coverage) of the LAMOST and MUSE instruments, we adopt the Data-Driven Payne (DD-Payne) model used on LAMOST observations and apply it to stars observed in MUSE fields. Remarkably, in spite of instrumental differences, according to the cross-validation of 27 LAMOST-MUSE common stars, we are able to determine stellar labels with precision better than 75K in $T_{\\rm eff}$, 0.15 d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.09327","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/2109.09327/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":"2026-07-05T04:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DM8uSnzvB/eYCM2hBPEcqIAcXxvlrMYmSJLfAfbs2rdrdVanneYklWZhcju4/RsP2yO8kdYKAu4VqmLXj1mIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:31:01.129399Z"},"content_sha256":"26fb6b0a3bc11e4b6950be0d408537740c1519132a90cb62b786c32a8b8092d4","schema_version":"1.0","event_id":"sha256:26fb6b0a3bc11e4b6950be0d408537740c1519132a90cb62b786c32a8b8092d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/bundle.json","state_url":"https://pith.science/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/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":"2026-08-05T06:31:01Z","links":{"resolver":"https://pith.science/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6","bundle":"https://pith.science/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/bundle.json","state":"https://pith.science/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SR3YIFTBYFFDT4PAQLSPNAHXF6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SR3YIFTBYFFDT4PAQLSPNAHXF6","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":"6bf4d6c1882dc6bdfebffa203a7a2649d3c9fdb18221db54fb71e2b5bc2e1688","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-20T07:11:00Z","title_canon_sha256":"9e4ebab11edb99bc84f0b67a09489a9ab88584c2d101d7edaccb2ae75d9c632e"},"schema_version":"1.0","source":{"id":"2109.09327","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.09327","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"2109.09327v2","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.09327","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"SR3YIFTBYFFD","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"SR3YIFTBYFFDT4PA","created_at":"2026-07-05T04:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"SR3YIFTB","created_at":"2026-07-05T04:26:33Z"}],"graph_snapshots":[{"event_id":"sha256:26fb6b0a3bc11e4b6950be0d408537740c1519132a90cb62b786c32a8b8092d4","target":"graph","created_at":"2026-07-05T04:26:33Z","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/2109.09327/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a novel approach to deriving stellar labels for stars observed in MUSE fields making use of data-driven machine learning methods. Taking advantage of the comparable spectral properties (resolution, wavelength coverage) of the LAMOST and MUSE instruments, we adopt the Data-Driven Payne (DD-Payne) model used on LAMOST observations and apply it to stars observed in MUSE fields. Remarkably, in spite of instrumental differences, according to the cross-validation of 27 LAMOST-MUSE common stars, we are able to determine stellar labels with precision better than 75K in $T_{\\rm eff}$, 0.15 d","authors_text":"Boquan Chen, Joss Bland-Hawthorn, Maosheng Xiang, Michael R. Hayden, Sanjib Sharma, Yuan-Sen Ting, Zixian Wang (Purmortal)","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-20T07:11:00Z","title":"Reliable stellar abundances of individual stars with the MUSE integral-field spectrograph"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.09327","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":"sha256:6aad53f8491b7888f27b398104dfcd7e9955e89dd06bcb826b5bc4117184c5f2","target":"record","created_at":"2026-07-05T04:26:33Z","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":"6bf4d6c1882dc6bdfebffa203a7a2649d3c9fdb18221db54fb71e2b5bc2e1688","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-20T07:11:00Z","title_canon_sha256":"9e4ebab11edb99bc84f0b67a09489a9ab88584c2d101d7edaccb2ae75d9c632e"},"schema_version":"1.0","source":{"id":"2109.09327","kind":"arxiv","version":2}},"canonical_sha256":"9477841661c14a39f1e082e4f680f72f919327732bb934577b1d438533db3c7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9477841661c14a39f1e082e4f680f72f919327732bb934577b1d438533db3c7d","first_computed_at":"2026-07-05T04:26:33.901457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:26:33.901457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i4ae1Yi3HeiBdP6YwmnKbfucJosp3B5BkNlkB6qfRrpaTiNmxsqEzTIn+4ASvUQudj4gMXB4xvCeTORFpq8wBA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:26:33.901856Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.09327","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6aad53f8491b7888f27b398104dfcd7e9955e89dd06bcb826b5bc4117184c5f2","sha256:26fb6b0a3bc11e4b6950be0d408537740c1519132a90cb62b786c32a8b8092d4"],"state_sha256":"0db0024c15d5e51d6fc75cbf091bc23d5f06c01d22105d954866e99fc65246ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kLKo6bJvcyEfykAonzz62A32ufT6yWQT3OfKKeddzX+rmrDJV4czLkZz9ZAl8aaosmYHEe025DWXyHaEEhteBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:31:01.135230Z","bundle_sha256":"2a0ff60ce472c7b7d27f11d7414ba1e7312c9bd16e7f916e4d7265e1a9863268"}}