{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:GTYOBO5QMFKJSQVJC3QQGRMU2I","short_pith_number":"pith:GTYOBO5Q","schema_version":"1.0","canonical_sha256":"34f0e0bbb061549942a916e1034594d21dc72f7f357c1b2bf9f8b0851a8045d4","source":{"kind":"arxiv","id":"2607.07568","version":1},"attestation_state":"computed","paper":{"title":"Transient and Variable Ultra-luminous X-ray Sources in NGC 4552","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. S. Sreya, E. Sreeraj, R. Arun, Riya Elza Mathew, V. Jithesh","submitted_at":"2026-07-08T15:57:44Z","abstract_excerpt":"We searched for transient and variable X-ray sources in the elliptical galaxy NGC 4552 using the {\\it Chandra} and {\\it XMM-Newton} observations from 2001-2012. We detected 14 transient and variable X-ray sources within the 4$R_{e}$ region of the galaxy, which exhibited peak state and undetected flux behaviour in the {\\it Chandra} observations. Among them, two sources (T1 and T14) exceed the X-ray luminosity $10^{39}\\rm~erg~s^{-1}$ in the detected observations and have the peak state and undetected luminosity ratio of $\\geq 14.3$ and $\\geq 8.7$, respectively, which we classified as transient a"},"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":"2607.07568","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-08T15:57:44Z","cross_cats_sorted":[],"title_canon_sha256":"14054437b1db2f4a3eec7fae9b5ee89ecec72267e06d5b538e27b01eddb89d67","abstract_canon_sha256":"5aa2f7d7aecba650a19ef40eca70faecf8b3620f74f7dd05e5576cd4b0587551"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-09T01:20:29.759979Z","signature_b64":"zcncS2qu1Muc78UjH4saQH5ZKzd/9mGZOu9J0yNOk7VgChdJ48xdG3Hsr6mOHDfky2/NmpyNSLG4J4SajPMRAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34f0e0bbb061549942a916e1034594d21dc72f7f357c1b2bf9f8b0851a8045d4","last_reissued_at":"2026-07-09T01:20:29.759537Z","signature_status":"signed_v1","first_computed_at":"2026-07-09T01:20:29.759537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Transient and Variable Ultra-luminous X-ray Sources in NGC 4552","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. S. Sreya, E. Sreeraj, R. Arun, Riya Elza Mathew, V. Jithesh","submitted_at":"2026-07-08T15:57:44Z","abstract_excerpt":"We searched for transient and variable X-ray sources in the elliptical galaxy NGC 4552 using the {\\it Chandra} and {\\it XMM-Newton} observations from 2001-2012. We detected 14 transient and variable X-ray sources within the 4$R_{e}$ region of the galaxy, which exhibited peak state and undetected flux behaviour in the {\\it Chandra} observations. Among them, two sources (T1 and T14) exceed the X-ray luminosity $10^{39}\\rm~erg~s^{-1}$ in the detected observations and have the peak state and undetected luminosity ratio of $\\geq 14.3$ and $\\geq 8.7$, respectively, which we classified as transient a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07568","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/2607.07568/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":"2607.07568","created_at":"2026-07-09T01:20:29.759596+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.07568v1","created_at":"2026-07-09T01:20:29.759596+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07568","created_at":"2026-07-09T01:20:29.759596+00:00"},{"alias_kind":"pith_short_12","alias_value":"GTYOBO5QMFKJ","created_at":"2026-07-09T01:20:29.759596+00:00"},{"alias_kind":"pith_short_16","alias_value":"GTYOBO5QMFKJSQVJ","created_at":"2026-07-09T01:20:29.759596+00:00"},{"alias_kind":"pith_short_8","alias_value":"GTYOBO5Q","created_at":"2026-07-09T01:20:29.759596+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/GTYOBO5QMFKJSQVJC3QQGRMU2I","json":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I.json","graph_json":"https://pith.science/api/pith-number/GTYOBO5QMFKJSQVJC3QQGRMU2I/graph.json","events_json":"https://pith.science/api/pith-number/GTYOBO5QMFKJSQVJC3QQGRMU2I/events.json","paper":"https://pith.science/paper/GTYOBO5Q"},"agent_actions":{"view_html":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I","download_json":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I.json","view_paper":"https://pith.science/paper/GTYOBO5Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.07568&json=true","fetch_graph":"https://pith.science/api/pith-number/GTYOBO5QMFKJSQVJC3QQGRMU2I/graph.json","fetch_events":"https://pith.science/api/pith-number/GTYOBO5QMFKJSQVJC3QQGRMU2I/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I/action/storage_attestation","attest_author":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I/action/author_attestation","sign_citation":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I/action/citation_signature","submit_replication":"https://pith.science/pith/GTYOBO5QMFKJSQVJC3QQGRMU2I/action/replication_record"}},"created_at":"2026-07-09T01:20:29.759596+00:00","updated_at":"2026-07-09T01:20:29.759596+00:00"}