{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:GYXG2BCVFL5CNJAOCZHLETDZFH","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":"509b4674b5b121c009b57a9e56060af67d996d414927f20cc116c4dd1fec6c11","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-06-29T07:55:44Z","title_canon_sha256":"f3c5e8638d9cbc89bd9621f9b034f930eb2d688b0ded0b330c204454e5336190"},"schema_version":"1.0","source":{"id":"2606.29918","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.29918","created_at":"2026-06-30T02:17:40Z"},{"alias_kind":"arxiv_version","alias_value":"2606.29918v1","created_at":"2026-06-30T02:17:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.29918","created_at":"2026-06-30T02:17:40Z"},{"alias_kind":"pith_short_12","alias_value":"GYXG2BCVFL5C","created_at":"2026-06-30T02:17:40Z"},{"alias_kind":"pith_short_16","alias_value":"GYXG2BCVFL5CNJAO","created_at":"2026-06-30T02:17:40Z"},{"alias_kind":"pith_short_8","alias_value":"GYXG2BCV","created_at":"2026-06-30T02:17:40Z"}],"graph_snapshots":[{"event_id":"sha256:1384ed92841370010b6b05fe0d2864561ec1450994dbc20c122155327615324a","target":"graph","created_at":"2026-06-30T02:17:40Z","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/2606.29918/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Blue horizontal-branch (BHB) stars are low-mass, core helium-burning objects with nearly constant luminosities, making them powerful tracers of old, metal-poor populations and valuable standard candles for mapping the Galactic halo. However, robustly identifying BHB stars from low-resolution spectra remains challenging. We present MSFA-Net, a two-stage framework developed for the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR12. By combining multi-scale convolutions with a soft frequency attention mechanism, MSFA-Net learns discriminative representations in both the wave","authors_text":"Jie Ju, Mingyuan Wang, Xiaoming Kong, Yuchen Liang, Yude Bu","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-06-29T07:55:44Z","title":"MSFA-Net: An Advanced Deep Learning Model for Identifying Blue Horizontal-Branch Stars from LAMOST DR12"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.29918","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:c6f2851589bc87a737d158b742b71f666dfb0763a86e8b332b586a877a35a164","target":"record","created_at":"2026-06-30T02:17:40Z","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":"509b4674b5b121c009b57a9e56060af67d996d414927f20cc116c4dd1fec6c11","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-06-29T07:55:44Z","title_canon_sha256":"f3c5e8638d9cbc89bd9621f9b034f930eb2d688b0ded0b330c204454e5336190"},"schema_version":"1.0","source":{"id":"2606.29918","kind":"arxiv","version":1}},"canonical_sha256":"362e6d04552afa26a40e164eb24c7929eb14b16a56cd6cbc24d41c47f1b5234a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"362e6d04552afa26a40e164eb24c7929eb14b16a56cd6cbc24d41c47f1b5234a","first_computed_at":"2026-06-30T02:17:40.918441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T02:17:40.918441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3mZydQqylurwEQpU86Q8dqsVeq0y8I/JhBiJtbAYl+rJWhwZ1UfQLqUtdYIWf2ei61MSNx8bYAtptQ4ETSnRDg==","signature_status":"signed_v1","signed_at":"2026-06-30T02:17:40.919002Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.29918","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6f2851589bc87a737d158b742b71f666dfb0763a86e8b332b586a877a35a164","sha256:1384ed92841370010b6b05fe0d2864561ec1450994dbc20c122155327615324a"],"state_sha256":"3286e218b6ee35c9ebf04261237342195cdeb8a72c84b02deb6745a6fac7354b"}