{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:5RH26E5DDACX2NJQ2N3OBJJYFW","short_pith_number":"pith:5RH26E5D","schema_version":"1.0","canonical_sha256":"ec4faf13a318057d3530d376e0a5382d9ae5fa5f1e9cdb735a1f99617f2be894","source":{"kind":"arxiv","id":"0910.5546","version":2},"attestation_state":"computed","paper":{"title":"Discovery of a 552 Hz burst oscillation in the low-mass X-ray binary EXO 0748-676","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"(2) Massachusetts Institute of Technology, (3) Naval Research Laboratory), Deepto Chakrabarty (2), Duncan K. Galloway (1), Jacob M. Hartman (3) ((1) Monash University, Jinrong Lin (2)","submitted_at":"2009-10-29T03:33:49Z","abstract_excerpt":"We report the detection of pulsations at 552 Hz in the rising phase of two type-I (thermonuclear) X-ray bursts observed from the accreting neutron star EXO 0748-676 in 2007 January and December, by the Rossi X-ray Timing Explorer. The fractional amplitude was 15% (rms). The dynamic power density spectrum for each burst revealed an increase in frequency of approx. 1-2 Hz while the oscillation was present. The frequency drift, the high significance of the detections and the almost identical signal frequencies measured in two bursts separated by 11 months, confirms this signal as a burst oscillat"},"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":"0910.5546","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-10-29T03:33:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"27822642a2315b89ba6e2c92f575a1d5b1b38d4e247c044c1948d438eafec2ec","abstract_canon_sha256":"1424492a9ec585098ece52f279078a04be77dd9ff1b07278ed12931771249b1d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:01.911952Z","signature_b64":"SlrhQiHnX3QWLjG3hzbJbQ4/1sKcFQnR4mLMiYNnekHvGIEPIxkzsEE1QrWrKqd3aPaZLpaBOaGsD7Lpgb0UDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec4faf13a318057d3530d376e0a5382d9ae5fa5f1e9cdb735a1f99617f2be894","last_reissued_at":"2026-05-18T02:11:01.911131Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:01.911131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of a 552 Hz burst oscillation in the low-mass X-ray binary EXO 0748-676","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"(2) Massachusetts Institute of Technology, (3) Naval Research Laboratory), Deepto Chakrabarty (2), Duncan K. Galloway (1), Jacob M. Hartman (3) ((1) Monash University, Jinrong Lin (2)","submitted_at":"2009-10-29T03:33:49Z","abstract_excerpt":"We report the detection of pulsations at 552 Hz in the rising phase of two type-I (thermonuclear) X-ray bursts observed from the accreting neutron star EXO 0748-676 in 2007 January and December, by the Rossi X-ray Timing Explorer. The fractional amplitude was 15% (rms). The dynamic power density spectrum for each burst revealed an increase in frequency of approx. 1-2 Hz while the oscillation was present. The frequency drift, the high significance of the detections and the almost identical signal frequencies measured in two bursts separated by 11 months, confirms this signal as a burst oscillat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.5546","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"0910.5546","created_at":"2026-05-18T02:11:01.911272+00:00"},{"alias_kind":"arxiv_version","alias_value":"0910.5546v2","created_at":"2026-05-18T02:11:01.911272+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.5546","created_at":"2026-05-18T02:11:01.911272+00:00"},{"alias_kind":"pith_short_12","alias_value":"5RH26E5DDACX","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"5RH26E5DDACX2NJQ","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"5RH26E5D","created_at":"2026-05-18T12:25:58.837520+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/5RH26E5DDACX2NJQ2N3OBJJYFW","json":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW.json","graph_json":"https://pith.science/api/pith-number/5RH26E5DDACX2NJQ2N3OBJJYFW/graph.json","events_json":"https://pith.science/api/pith-number/5RH26E5DDACX2NJQ2N3OBJJYFW/events.json","paper":"https://pith.science/paper/5RH26E5D"},"agent_actions":{"view_html":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW","download_json":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW.json","view_paper":"https://pith.science/paper/5RH26E5D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0910.5546&json=true","fetch_graph":"https://pith.science/api/pith-number/5RH26E5DDACX2NJQ2N3OBJJYFW/graph.json","fetch_events":"https://pith.science/api/pith-number/5RH26E5DDACX2NJQ2N3OBJJYFW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW/action/storage_attestation","attest_author":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW/action/author_attestation","sign_citation":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW/action/citation_signature","submit_replication":"https://pith.science/pith/5RH26E5DDACX2NJQ2N3OBJJYFW/action/replication_record"}},"created_at":"2026-05-18T02:11:01.911272+00:00","updated_at":"2026-05-18T02:11:01.911272+00:00"}