{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YP2DYVCS3Q3RFCOWRM5GOIKYQW","short_pith_number":"pith:YP2DYVCS","canonical_record":{"source":{"id":"2407.18106","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-25T15:09:24Z","cross_cats_sorted":[],"title_canon_sha256":"d0aea11d4289252184761d7310170926772ab7a4d94c231573059371113d4326","abstract_canon_sha256":"9534cb1cdf7555c61ad04bb2df5a5c9a517c2d833e650ce50243b8d9d706ca38"},"schema_version":"1.0"},"canonical_sha256":"c3f43c5452dc371289d68b3a67215885a7ccb0ab962fa2f344c938ceafffafa8","source":{"kind":"arxiv","id":"2407.18106","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.18106","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"arxiv_version","alias_value":"2407.18106v1","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.18106","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_12","alias_value":"YP2DYVCS3Q3R","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_16","alias_value":"YP2DYVCS3Q3RFCOW","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_8","alias_value":"YP2DYVCS","created_at":"2026-07-05T08:48:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YP2DYVCS3Q3RFCOWRM5GOIKYQW","target":"record","payload":{"canonical_record":{"source":{"id":"2407.18106","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-25T15:09:24Z","cross_cats_sorted":[],"title_canon_sha256":"d0aea11d4289252184761d7310170926772ab7a4d94c231573059371113d4326","abstract_canon_sha256":"9534cb1cdf7555c61ad04bb2df5a5c9a517c2d833e650ce50243b8d9d706ca38"},"schema_version":"1.0"},"canonical_sha256":"c3f43c5452dc371289d68b3a67215885a7ccb0ab962fa2f344c938ceafffafa8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:48:34.494936Z","signature_b64":"oMm8d0qabAtROtTnxr29gO9BW8j3DPoQ1LdLdUrypG7Kl3+59DRa1MDUmV8fhzGmr0Xq86A9PMVBPcECZGjXAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3f43c5452dc371289d68b3a67215885a7ccb0ab962fa2f344c938ceafffafa8","last_reissued_at":"2026-07-05T08:48:34.494491Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:48:34.494491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.18106","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:48:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YgoHBkhXSdkhiFzDK4KHo+Kxp07necHBAPFfrpSLc77fOZP0FHotTNabRhhy5hKSIdPU60q/T+UQwqNdmHHFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T00:41:11.136493Z"},"content_sha256":"a11c4a85beeca59394b84c2e27ab7795e533a8d20834316bcacd97e9878fb552","schema_version":"1.0","event_id":"sha256:a11c4a85beeca59394b84c2e27ab7795e533a8d20834316bcacd97e9878fb552"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YP2DYVCS3Q3RFCOWRM5GOIKYQW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase-resolved Spectroscopy of Low-frequency Quasi-periodic Oscillations from the Newly Discovered Black Hole X-ray Binary Swift J1727.8-1613","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Hong-Xing Yin, Hua Feng, Jiang-Qiang Peng, Jian Li, Jin-Lu Qu, Liang Zhang, Lian Tao, Ling-Da Kong, Long Ji, Ming-Yu Ge, Peng-Ju Wang, Qing-Cang Shui, Shuang-Nan Zhang, Shu Zhang, Yu-peng Chen, Zhi Chang, Zhuo-li Yu","submitted_at":"2024-07-25T15:09:24Z","abstract_excerpt":"Low-frequency quasi-periodic oscillations (LFQPOs) are commonly observed in X-ray light curves of black hole X-ray binaries (BHXRBs); however, their origin remains a topic of debate. In order to thoroughly investigate variations in spectral properties on the QPO timescale, we utilized the Hilbert-Huang transform technique to conduct phase-resolved spectroscopy across a broad energy band for LFQPOs in the newly discovered BHXRB Swift J1727.8-1613. This is achieved through quasi-simultaneous observations from Neutron star Interior Composition ExploreR (NICER), Nuclear Spectroscopic Telescope ARr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.18106","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/2407.18106/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:48:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iPXbXXABLwbD6mwjcrFnRGeR/X7odLDeIASPhbsHEBpPrDhxciba0VL/6VvpfjI51LtXIyT2kkJ4uNIk2piDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T00:41:11.137016Z"},"content_sha256":"3c621aad7c4436e5f593eb17a419bbb4ce998b0b2825881fdc8720efe883d092","schema_version":"1.0","event_id":"sha256:3c621aad7c4436e5f593eb17a419bbb4ce998b0b2825881fdc8720efe883d092"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/bundle.json","state_url":"https://pith.science/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-08T00:41:11Z","links":{"resolver":"https://pith.science/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW","bundle":"https://pith.science/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/bundle.json","state":"https://pith.science/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YP2DYVCS3Q3RFCOWRM5GOIKYQW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YP2DYVCS3Q3RFCOWRM5GOIKYQW","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":"9534cb1cdf7555c61ad04bb2df5a5c9a517c2d833e650ce50243b8d9d706ca38","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-25T15:09:24Z","title_canon_sha256":"d0aea11d4289252184761d7310170926772ab7a4d94c231573059371113d4326"},"schema_version":"1.0","source":{"id":"2407.18106","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.18106","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"arxiv_version","alias_value":"2407.18106v1","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.18106","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_12","alias_value":"YP2DYVCS3Q3R","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_16","alias_value":"YP2DYVCS3Q3RFCOW","created_at":"2026-07-05T08:48:34Z"},{"alias_kind":"pith_short_8","alias_value":"YP2DYVCS","created_at":"2026-07-05T08:48:34Z"}],"graph_snapshots":[{"event_id":"sha256:3c621aad7c4436e5f593eb17a419bbb4ce998b0b2825881fdc8720efe883d092","target":"graph","created_at":"2026-07-05T08:48:34Z","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/2407.18106/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Low-frequency quasi-periodic oscillations (LFQPOs) are commonly observed in X-ray light curves of black hole X-ray binaries (BHXRBs); however, their origin remains a topic of debate. In order to thoroughly investigate variations in spectral properties on the QPO timescale, we utilized the Hilbert-Huang transform technique to conduct phase-resolved spectroscopy across a broad energy band for LFQPOs in the newly discovered BHXRB Swift J1727.8-1613. This is achieved through quasi-simultaneous observations from Neutron star Interior Composition ExploreR (NICER), Nuclear Spectroscopic Telescope ARr","authors_text":"Hong-Xing Yin, Hua Feng, Jiang-Qiang Peng, Jian Li, Jin-Lu Qu, Liang Zhang, Lian Tao, Ling-Da Kong, Long Ji, Ming-Yu Ge, Peng-Ju Wang, Qing-Cang Shui, Shuang-Nan Zhang, Shu Zhang, Yu-peng Chen, Zhi Chang, Zhuo-li Yu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-25T15:09:24Z","title":"Phase-resolved Spectroscopy of Low-frequency Quasi-periodic Oscillations from the Newly Discovered Black Hole X-ray Binary Swift J1727.8-1613"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.18106","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:a11c4a85beeca59394b84c2e27ab7795e533a8d20834316bcacd97e9878fb552","target":"record","created_at":"2026-07-05T08:48:34Z","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":"9534cb1cdf7555c61ad04bb2df5a5c9a517c2d833e650ce50243b8d9d706ca38","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-25T15:09:24Z","title_canon_sha256":"d0aea11d4289252184761d7310170926772ab7a4d94c231573059371113d4326"},"schema_version":"1.0","source":{"id":"2407.18106","kind":"arxiv","version":1}},"canonical_sha256":"c3f43c5452dc371289d68b3a67215885a7ccb0ab962fa2f344c938ceafffafa8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3f43c5452dc371289d68b3a67215885a7ccb0ab962fa2f344c938ceafffafa8","first_computed_at":"2026-07-05T08:48:34.494491Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:48:34.494491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oMm8d0qabAtROtTnxr29gO9BW8j3DPoQ1LdLdUrypG7Kl3+59DRa1MDUmV8fhzGmr0Xq86A9PMVBPcECZGjXAA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:48:34.494936Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.18106","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a11c4a85beeca59394b84c2e27ab7795e533a8d20834316bcacd97e9878fb552","sha256:3c621aad7c4436e5f593eb17a419bbb4ce998b0b2825881fdc8720efe883d092"],"state_sha256":"898d9e0b451fa7be8af5075f1f194c43d8273809ecaa45f87f566a7cceb2e5e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QT29bz7M9wPC3qqYT57AxZOeuQ4VWFz7Z9r52GzEeyfrROT246xedV6HLh4ofEthJS+C+R6JUthxsKGv/w4iCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T00:41:11.140532Z","bundle_sha256":"ef8ea043df82ccf5b552326a858021514d924417e86f7c6bccfef704a8c4940c"}}