{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:H7FXS4B5SJN2OUOTKI3B7KFBHS","short_pith_number":"pith:H7FXS4B5","schema_version":"1.0","canonical_sha256":"3fcb79703d925ba751d352361fa8a13c92637124b26defeeea9e5f7e89edcfd4","source":{"kind":"arxiv","id":"2503.05444","version":1},"attestation_state":"computed","paper":{"title":"Sidebands to mHz QPOs in 4U 1626$-$67 in the second spin-down state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aru Beri, Biswajit Paul, Chetana Jain, Rahul Sharma","submitted_at":"2025-03-07T14:15:54Z","abstract_excerpt":"We report results from an $AstroSat$ Target-of-Opportunity (ToO) observation of 4U 1626$-$67, performed on 2023 May 18, soon after the discovery of torque reversal to spin-down in the source. The X-ray emission exhibited significant dependence on both energy and torque state. This work highlights the comparison of timing features of 4U 1626$-$67 with a previous $AstroSat$ observation from 2018, when the neutron star was in the spin-up state. The power density spectrum (PDS) of the 2023 observation comprised a sharp peak corresponding to $\\nu_{\\rm NS}\\sim$130 mHz X-ray pulsations along with a p"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2503.05444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-07T14:15:54Z","cross_cats_sorted":[],"title_canon_sha256":"531817b1927d003190c59f21d28152b1871c276b9763b0f4845535477f2be6c3","abstract_canon_sha256":"2e5004dd293b5044062eda62b2f4f5292fdcdac8189a63367914e4e3f9f1a06e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:26:28.627488Z","signature_b64":"5hH4vPy0txvXU9mc3LmfDNDCsUFsrObsuUGc/LO0tcqL1AXf8p916aoUajtMDbq9B9nS/E4nJIrpv5KvnG/3AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fcb79703d925ba751d352361fa8a13c92637124b26defeeea9e5f7e89edcfd4","last_reissued_at":"2026-07-05T10:26:28.626888Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:26:28.626888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sidebands to mHz QPOs in 4U 1626$-$67 in the second spin-down state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aru Beri, Biswajit Paul, Chetana Jain, Rahul Sharma","submitted_at":"2025-03-07T14:15:54Z","abstract_excerpt":"We report results from an $AstroSat$ Target-of-Opportunity (ToO) observation of 4U 1626$-$67, performed on 2023 May 18, soon after the discovery of torque reversal to spin-down in the source. The X-ray emission exhibited significant dependence on both energy and torque state. This work highlights the comparison of timing features of 4U 1626$-$67 with a previous $AstroSat$ observation from 2018, when the neutron star was in the spin-up state. The power density spectrum (PDS) of the 2023 observation comprised a sharp peak corresponding to $\\nu_{\\rm NS}\\sim$130 mHz X-ray pulsations along with a p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.05444","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/2503.05444/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":"2503.05444","created_at":"2026-07-05T10:26:28.626957+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.05444v1","created_at":"2026-07-05T10:26:28.626957+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.05444","created_at":"2026-07-05T10:26:28.626957+00:00"},{"alias_kind":"pith_short_12","alias_value":"H7FXS4B5SJN2","created_at":"2026-07-05T10:26:28.626957+00:00"},{"alias_kind":"pith_short_16","alias_value":"H7FXS4B5SJN2OUOT","created_at":"2026-07-05T10:26:28.626957+00:00"},{"alias_kind":"pith_short_8","alias_value":"H7FXS4B5","created_at":"2026-07-05T10:26:28.626957+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/H7FXS4B5SJN2OUOTKI3B7KFBHS","json":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS.json","graph_json":"https://pith.science/api/pith-number/H7FXS4B5SJN2OUOTKI3B7KFBHS/graph.json","events_json":"https://pith.science/api/pith-number/H7FXS4B5SJN2OUOTKI3B7KFBHS/events.json","paper":"https://pith.science/paper/H7FXS4B5"},"agent_actions":{"view_html":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS","download_json":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS.json","view_paper":"https://pith.science/paper/H7FXS4B5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.05444&json=true","fetch_graph":"https://pith.science/api/pith-number/H7FXS4B5SJN2OUOTKI3B7KFBHS/graph.json","fetch_events":"https://pith.science/api/pith-number/H7FXS4B5SJN2OUOTKI3B7KFBHS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS/action/storage_attestation","attest_author":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS/action/author_attestation","sign_citation":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS/action/citation_signature","submit_replication":"https://pith.science/pith/H7FXS4B5SJN2OUOTKI3B7KFBHS/action/replication_record"}},"created_at":"2026-07-05T10:26:28.626957+00:00","updated_at":"2026-07-05T10:26:28.626957+00:00"}