{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:ZFWJV2V7VO2KDOOBGOFS4DS5T3","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":"2ccb10e24dbb10f50fa3bd7296543e0495f57ae8dd263388b468341679fb42ff","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-02T11:15:36Z","title_canon_sha256":"e4cfe94d77c6c0966276ecdef4d37269771774bbfe48f4269b90c614aea8dc5e"},"schema_version":"1.0","source":{"id":"astro-ph/0610034","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610034","created_at":"2026-07-04T15:22:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610034v1","created_at":"2026-07-04T15:22:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610034","created_at":"2026-07-04T15:22:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZFWJV2V7VO2K","created_at":"2026-07-04T15:22:21Z"},{"alias_kind":"pith_short_16","alias_value":"ZFWJV2V7VO2KDOOB","created_at":"2026-07-04T15:22:21Z"},{"alias_kind":"pith_short_8","alias_value":"ZFWJV2V7","created_at":"2026-07-04T15:22:21Z"}],"graph_snapshots":[{"event_id":"sha256:189cfcb64e4d63b20ecd01da0a4bc7e819a3b00ad75662972ad310513bf13c84","target":"graph","created_at":"2026-07-04T15:22:21Z","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/0610034/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gravitational lensing observations of galaxy clusters have identified dark matter ``blobs'' with remarkably low baryonic content. We use such a system to probe the particle nature of dark matter with X-ray observations. We also study high resolution X-ray grating spectra of a cluster of galaxies. From these grating spectra we improve the conservative constraints on a particular dark matter candidate, the sterile neutrino, by more than one order of magnitude. Based on these conservative constraints obtained from Cosmic X-ray observations alone, the low mass (m_s < 10keV) and low mixing angle (s","authors_text":"Haakon Dahle, Kristian Pedersen, Signe Riemer-Sorensen, Steen H. Hansen","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-10-02T11:15:36Z","title":"Probing the nature of dark matter with Cosmic X-rays: Constraints from \"Dark blobs\" and grating spectra of galaxy clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610034","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":"sha256:44bef015a9871ce25edd2df648795130a325b0f9daa673415e700b4fa0fa5528","target":"record","created_at":"2026-07-04T15:22:21Z","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":"2ccb10e24dbb10f50fa3bd7296543e0495f57ae8dd263388b468341679fb42ff","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-02T11:15:36Z","title_canon_sha256":"e4cfe94d77c6c0966276ecdef4d37269771774bbfe48f4269b90c614aea8dc5e"},"schema_version":"1.0","source":{"id":"astro-ph/0610034","kind":"arxiv","version":1}},"canonical_sha256":"c96c9aeabfabb4a1b9c1338b2e0e5d9ee9c258d2219402a9a57b5e2da7982006","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c96c9aeabfabb4a1b9c1338b2e0e5d9ee9c258d2219402a9a57b5e2da7982006","first_computed_at":"2026-07-04T15:22:21.476076Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:22:21.476076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ryBk8kFFBb0rj4Eqv4j+5ZQFpjmi+1ABtlw2AC5k21uOXvmdNvb4H9GLnH40Dj32K5B2M5mwDfe1Az2z0BF2Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:22:21.476509Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0610034","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44bef015a9871ce25edd2df648795130a325b0f9daa673415e700b4fa0fa5528","sha256:189cfcb64e4d63b20ecd01da0a4bc7e819a3b00ad75662972ad310513bf13c84"],"state_sha256":"aa6ae0c06bdb0f0995c44453339f2e1af9b23675c31a8a058029ff4a407fd295"}