{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:WGUYQV4O2UBNXMCKL2XCC53POH","short_pith_number":"pith:WGUYQV4O","schema_version":"1.0","canonical_sha256":"b1a988578ed502dbb04a5eae21776f71d10ef346dfe1481256f49ed307d0acd8","source":{"kind":"arxiv","id":"astro-ph/0312646","version":1},"attestation_state":"computed","paper":{"title":"XMM-Newton and VLT observations of the isolated neutron star 1E 1207.4-5209","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. De Luca, G.F. Bignami, M. Moroni, P.A. Caraveo, R.P. Mignani, S. Mereghetti","submitted_at":"2003-12-30T14:38:57Z","abstract_excerpt":"In August 2002, XMM-Newton devoted two full orbits to the observation of 1E 1207.4-5209, making this isolated neutron star the most deeply scrutinized galactic target of the mission. Thanks to the high throughput of the EPIC instrument, ~360,000 photons were collected from the source, allowing for a very sensitive study of the temporal and spectral behaviour of this object. The spectral data, both time-averaged and phase-resolved, yield one compelling interpretation of the observed features: cyclotron absorption from one fundamental (~0.7 keV) and three harmonics, at ~1.4, ~2.1 and ~2.8 keV. 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":"astro-ph/0312646","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-12-30T14:38:57Z","cross_cats_sorted":[],"title_canon_sha256":"932e7c6436a2ba6eee38ea51873da79c16ea9e2ede25c2f7e1d4bdd67946a03f","abstract_canon_sha256":"7d61c2c0ab4444735e069189c8f8c4cd776cc1e6e6f7dc7ae8fdec484b537dbf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:38:04.335550Z","signature_b64":"UmvsuE7Oq2MvTpRp4TZLNRum9HhfS1SiW+Fm8IMyV1oapOm0+qjZSZmFlhB/dGICC6ZKvynDis4kEdgr2cPDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1a988578ed502dbb04a5eae21776f71d10ef346dfe1481256f49ed307d0acd8","last_reissued_at":"2026-07-04T16:38:04.335120Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:38:04.335120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"XMM-Newton and VLT observations of the isolated neutron star 1E 1207.4-5209","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. De Luca, G.F. Bignami, M. Moroni, P.A. Caraveo, R.P. Mignani, S. Mereghetti","submitted_at":"2003-12-30T14:38:57Z","abstract_excerpt":"In August 2002, XMM-Newton devoted two full orbits to the observation of 1E 1207.4-5209, making this isolated neutron star the most deeply scrutinized galactic target of the mission. Thanks to the high throughput of the EPIC instrument, ~360,000 photons were collected from the source, allowing for a very sensitive study of the temporal and spectral behaviour of this object. The spectral data, both time-averaged and phase-resolved, yield one compelling interpretation of the observed features: cyclotron absorption from one fundamental (~0.7 keV) and three harmonics, at ~1.4, ~2.1 and ~2.8 keV. P"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0312646","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/astro-ph/0312646/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":"astro-ph/0312646","created_at":"2026-07-04T16:38:04.335188+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0312646v1","created_at":"2026-07-04T16:38:04.335188+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0312646","created_at":"2026-07-04T16:38:04.335188+00:00"},{"alias_kind":"pith_short_12","alias_value":"WGUYQV4O2UBN","created_at":"2026-07-04T16:38:04.335188+00:00"},{"alias_kind":"pith_short_16","alias_value":"WGUYQV4O2UBNXMCK","created_at":"2026-07-04T16:38:04.335188+00:00"},{"alias_kind":"pith_short_8","alias_value":"WGUYQV4O","created_at":"2026-07-04T16:38:04.335188+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2311.10903","citing_title":"Probing Low-Luminosity Gamma-Ray Emission from SNR G296.5+10.0 and CCO 1E 1207.4-5209 with CTAO","ref_index":27,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH","json":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH.json","graph_json":"https://pith.science/api/pith-number/WGUYQV4O2UBNXMCKL2XCC53POH/graph.json","events_json":"https://pith.science/api/pith-number/WGUYQV4O2UBNXMCKL2XCC53POH/events.json","paper":"https://pith.science/paper/WGUYQV4O"},"agent_actions":{"view_html":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH","download_json":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH.json","view_paper":"https://pith.science/paper/WGUYQV4O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0312646&json=true","fetch_graph":"https://pith.science/api/pith-number/WGUYQV4O2UBNXMCKL2XCC53POH/graph.json","fetch_events":"https://pith.science/api/pith-number/WGUYQV4O2UBNXMCKL2XCC53POH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH/action/storage_attestation","attest_author":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH/action/author_attestation","sign_citation":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH/action/citation_signature","submit_replication":"https://pith.science/pith/WGUYQV4O2UBNXMCKL2XCC53POH/action/replication_record"}},"created_at":"2026-07-04T16:38:04.335188+00:00","updated_at":"2026-07-04T16:38:04.335188+00:00"}