{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:5MIVYQXT3TKGFCGPMPEJYULIZX","short_pith_number":"pith:5MIVYQXT","canonical_record":{"source":{"id":"astro-ph/0202077","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-04T17:40:50Z","cross_cats_sorted":[],"title_canon_sha256":"26ec6870435d87ca15f89a36a63228897f3dc8996e1c70843077ae05d0271b80","abstract_canon_sha256":"afbe98831f7ef2abe473cfd6e674b43d3d9562480f330368d9ac8f26fcd3cd86"},"schema_version":"1.0"},"canonical_sha256":"eb115c42f3dcd46288cf63c89c5168cdf8961b80c8144f980bec67d44f72912f","source":{"kind":"arxiv","id":"astro-ph/0202077","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0202077","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0202077v1","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0202077","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_12","alias_value":"5MIVYQXT3TKG","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_16","alias_value":"5MIVYQXT3TKGFCGP","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_8","alias_value":"5MIVYQXT","created_at":"2026-07-04T16:29:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:5MIVYQXT3TKGFCGPMPEJYULIZX","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0202077","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-04T17:40:50Z","cross_cats_sorted":[],"title_canon_sha256":"26ec6870435d87ca15f89a36a63228897f3dc8996e1c70843077ae05d0271b80","abstract_canon_sha256":"afbe98831f7ef2abe473cfd6e674b43d3d9562480f330368d9ac8f26fcd3cd86"},"schema_version":"1.0"},"canonical_sha256":"eb115c42f3dcd46288cf63c89c5168cdf8961b80c8144f980bec67d44f72912f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:29:21.798470Z","signature_b64":"J5vLDCIm7sr84Wn2Zs9ilN+oMkQWcRMlTEnvWE8K0U0OPNXLAr4t3o6jEi+ungIGC8szeuvXaelGHqlFtvhTCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb115c42f3dcd46288cf63c89c5168cdf8961b80c8144f980bec67d44f72912f","last_reissued_at":"2026-07-04T16:29:21.798070Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:29:21.798070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0202077","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":"2026-07-04T16:29:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LeB7mIhLbIOejiW7bPEqtL6wfZelluH1V8f64C4oIVIsov4uNMI1KzCtLrM9h8tnQXIbZ2PnuekTF3EZdOGIAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:16:19.769178Z"},"content_sha256":"63e3efadaf851c4a95b0af7e6ebeb1293e172ea7e8d332f926c7fda0f6a971db","schema_version":"1.0","event_id":"sha256:63e3efadaf851c4a95b0af7e6ebeb1293e172ea7e8d332f926c7fda0f6a971db"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:5MIVYQXT3TKGFCGPMPEJYULIZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of complex narrow X-ray absorption features from the low-mass X-ray binary GX13+1 with XMM-Newton","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.N.Parmar, D.Lumb (ESA/ESTEC, Italy), L.Sidoli (IASF/CNR, Milano, Noordwijk, the Netherlands), T.Oosterbroek","submitted_at":"2002-02-04T17:40:50Z","abstract_excerpt":"We report the detection of a complex of narrow X-ray absorption features from the low-mass X-ray binary GX13+1 during 3 XMM-Newton observations in 2000 March and April. The features are consistent with being due to resonant scattering of the K_alpha and K_beta lines of He- and H-like iron (Fe xxv and Fe xxvi) and H-like calcium (Ca xx) K_alpha. Only the Fe xxvi K_alpha line has been previously observed from GX13+1. Due to the closeness in energy the Fe xxv and Fe xxvi K_beta features may also be ascribed to Nixxvii and Nixxviii K_alpha, respectively. We also find evidence for the presence of a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202077","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/0202077/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":"2026-07-04T16:29:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tLCIkylWLWJbexcCgJYthEIGbENMdcJCjPiF402o0WKCcqfbibP1553YWaon8ykI3CoV7mTIBU/AkMFCu85EBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:16:19.769700Z"},"content_sha256":"714618faf075c03160f2ec374fd45d26aa3646f75f59284eb51a01bedf609192","schema_version":"1.0","event_id":"sha256:714618faf075c03160f2ec374fd45d26aa3646f75f59284eb51a01bedf609192"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/bundle.json","state_url":"https://pith.science/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/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":"2026-08-13T10:16:19Z","links":{"resolver":"https://pith.science/pith/5MIVYQXT3TKGFCGPMPEJYULIZX","bundle":"https://pith.science/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/bundle.json","state":"https://pith.science/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5MIVYQXT3TKGFCGPMPEJYULIZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:5MIVYQXT3TKGFCGPMPEJYULIZX","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":"afbe98831f7ef2abe473cfd6e674b43d3d9562480f330368d9ac8f26fcd3cd86","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-04T17:40:50Z","title_canon_sha256":"26ec6870435d87ca15f89a36a63228897f3dc8996e1c70843077ae05d0271b80"},"schema_version":"1.0","source":{"id":"astro-ph/0202077","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0202077","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0202077v1","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0202077","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_12","alias_value":"5MIVYQXT3TKG","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_16","alias_value":"5MIVYQXT3TKGFCGP","created_at":"2026-07-04T16:29:21Z"},{"alias_kind":"pith_short_8","alias_value":"5MIVYQXT","created_at":"2026-07-04T16:29:21Z"}],"graph_snapshots":[{"event_id":"sha256:714618faf075c03160f2ec374fd45d26aa3646f75f59284eb51a01bedf609192","target":"graph","created_at":"2026-07-04T16:29:21Z","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/astro-ph/0202077/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the detection of a complex of narrow X-ray absorption features from the low-mass X-ray binary GX13+1 during 3 XMM-Newton observations in 2000 March and April. The features are consistent with being due to resonant scattering of the K_alpha and K_beta lines of He- and H-like iron (Fe xxv and Fe xxvi) and H-like calcium (Ca xx) K_alpha. Only the Fe xxvi K_alpha line has been previously observed from GX13+1. Due to the closeness in energy the Fe xxv and Fe xxvi K_beta features may also be ascribed to Nixxvii and Nixxviii K_alpha, respectively. We also find evidence for the presence of a","authors_text":"A.N.Parmar, D.Lumb (ESA/ESTEC, Italy), L.Sidoli (IASF/CNR, Milano, Noordwijk, the Netherlands), T.Oosterbroek","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-02-04T17:40:50Z","title":"Discovery of complex narrow X-ray absorption features from the low-mass X-ray binary GX13+1 with XMM-Newton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202077","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":"sha256:63e3efadaf851c4a95b0af7e6ebeb1293e172ea7e8d332f926c7fda0f6a971db","target":"record","created_at":"2026-07-04T16:29:21Z","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":"afbe98831f7ef2abe473cfd6e674b43d3d9562480f330368d9ac8f26fcd3cd86","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-04T17:40:50Z","title_canon_sha256":"26ec6870435d87ca15f89a36a63228897f3dc8996e1c70843077ae05d0271b80"},"schema_version":"1.0","source":{"id":"astro-ph/0202077","kind":"arxiv","version":1}},"canonical_sha256":"eb115c42f3dcd46288cf63c89c5168cdf8961b80c8144f980bec67d44f72912f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb115c42f3dcd46288cf63c89c5168cdf8961b80c8144f980bec67d44f72912f","first_computed_at":"2026-07-04T16:29:21.798070Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:21.798070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J5vLDCIm7sr84Wn2Zs9ilN+oMkQWcRMlTEnvWE8K0U0OPNXLAr4t3o6jEi+ungIGC8szeuvXaelGHqlFtvhTCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:21.798470Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0202077","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63e3efadaf851c4a95b0af7e6ebeb1293e172ea7e8d332f926c7fda0f6a971db","sha256:714618faf075c03160f2ec374fd45d26aa3646f75f59284eb51a01bedf609192"],"state_sha256":"4636d4e9d58ce138a8144cad52df7a702a41bd0ac92cdf743c8893c2268542d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Yqmin8d9wqbNXOy2aDD8Bw/gPlicwKAGV7DGUboUnCtdUmTJxPv4hMMX7hUf6Vs9q2+tuSZyUgw8xkKpCwoBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T10:16:19.774611Z","bundle_sha256":"79565910eb53ec3fe02fe1a495dbf044b09ce3a0f21e80643a79fee8f77c2521"}}