{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:YIUBQHEBLV5POYN5P3IMM7Y2WS","short_pith_number":"pith:YIUBQHEB","canonical_record":{"source":{"id":"astro-ph/0005255","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T19:43:15Z","cross_cats_sorted":[],"title_canon_sha256":"59b1086096ae01f45417f6a5aec26397f9c774bde728dc55fb7732c3feb63d36","abstract_canon_sha256":"64c795a581ba4e0c1985a2e1a665892d3de5d6f19fdcd46938d9c32ee9325cbf"},"schema_version":"1.0"},"canonical_sha256":"c228181c815d7af761bd7ed0c67f1ab4a9217dab87a96e1005e42114b89516a8","source":{"kind":"arxiv","id":"astro-ph/0005255","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0005255","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0005255v1","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0005255","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_12","alias_value":"YIUBQHEBLV5P","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_16","alias_value":"YIUBQHEBLV5POYN5","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_8","alias_value":"YIUBQHEB","created_at":"2026-07-04T16:16:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:YIUBQHEBLV5POYN5P3IMM7Y2WS","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0005255","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T19:43:15Z","cross_cats_sorted":[],"title_canon_sha256":"59b1086096ae01f45417f6a5aec26397f9c774bde728dc55fb7732c3feb63d36","abstract_canon_sha256":"64c795a581ba4e0c1985a2e1a665892d3de5d6f19fdcd46938d9c32ee9325cbf"},"schema_version":"1.0"},"canonical_sha256":"c228181c815d7af761bd7ed0c67f1ab4a9217dab87a96e1005e42114b89516a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:16:39.420098Z","signature_b64":"xWQr+UIkvd96RkQpBahfU8BZwLyAI+yLT/b1E92528wdhRS2s32T7zfr5ec0/3z43iFIhv2kso6Nb6qxdkf+Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c228181c815d7af761bd7ed0c67f1ab4a9217dab87a96e1005e42114b89516a8","last_reissued_at":"2026-07-04T16:16:39.419659Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:16:39.419659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0005255","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":"2026-07-04T16:16:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3xxAqugtbFVKtcWil/EAoTvn9QSibFIXJbnUNdYqtTqkeIs1YKZbUXNJpCe/AAYXGjTi82VGOXnWl2KCdPKKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T19:13:46.737620Z"},"content_sha256":"d29c00200b31f297a20306586fa9b88d3376910b0095f099c9996ccfc8866de2","schema_version":"1.0","event_id":"sha256:d29c00200b31f297a20306586fa9b88d3376910b0095f099c9996ccfc8866de2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:YIUBQHEBLV5POYN5P3IMM7Y2WS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chandra Discovery of a 100 kpc X-ray Jet in PKS 0637--752","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(10) Ohio State University), (2) MIT, (3) ATNF/CSIRO, 4), (4) JPL, 5), 5) ((1) Harvard-Smithsonian CfA, (5) University of Bristol, (6) PSU, (7) NASA/MSFC, (8) ISAS, (9) SUNY at Stony Brook, B.G. Piner (4), B. Wilkes (1), D.A. Schwartz (1), D.E. Harris (1), D.L. Jauncey (3), D. M. Worrall (1, E.D. Feigelson (6), E.J. Hooper (1), G. Chartas (6), H. Hirabayashi (8), H.L. Marshall (2), J.E.J. Lovell (3), K.K. Ghosh (7), K.M. Lanzetta (9), M. Birkinshaw (1, M. Elvis (1), R. A. Preston (4), S.J. Tingay (3, S. Mathur (10), S. Virani (1), W. H. Tucker (1)","submitted_at":"2000-05-11T19:43:15Z","abstract_excerpt":"The quasar PKS 0637-753, the first celestial X-ray target of the Chandra X-ray Observatory, has revealed asymmetric X-ray structure extending from 3 to 12 arcsec west of the quasar, coincident with the inner portion of the jet previously detected in a 4.8 GHz radio image (Tingay et al. 1998). At a redshift of z=0.651, the jet is the largest (~100 kpc) and most luminous (~10^{44.6} ergs/s) of the few so far detected in X-rays. This letter presents a high resolution X-ray image of the jet, from 42 ks of data when PKS 0637-753 was on-axis and ACIS-S was near the optimum focus. For the inner porti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0005255","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/0005255/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":"2026-07-04T16:16:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a7KCPEtNZZXwGZkTR95nE79+MXD/nR/MW6cE7n/opeZ06KWbbq4Gh8Qv+uIGoexJbNM2HTKRyErlQiAkWJwmCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T19:13:46.738138Z"},"content_sha256":"303e49c5406445836b5e8df8bab5bd8381850ef47fae017bcacd89408f1af87b","schema_version":"1.0","event_id":"sha256:303e49c5406445836b5e8df8bab5bd8381850ef47fae017bcacd89408f1af87b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/bundle.json","state_url":"https://pith.science/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/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":"2026-08-16T19:13:46Z","links":{"resolver":"https://pith.science/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS","bundle":"https://pith.science/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/bundle.json","state":"https://pith.science/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YIUBQHEBLV5POYN5P3IMM7Y2WS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:YIUBQHEBLV5POYN5P3IMM7Y2WS","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":"64c795a581ba4e0c1985a2e1a665892d3de5d6f19fdcd46938d9c32ee9325cbf","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T19:43:15Z","title_canon_sha256":"59b1086096ae01f45417f6a5aec26397f9c774bde728dc55fb7732c3feb63d36"},"schema_version":"1.0","source":{"id":"astro-ph/0005255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0005255","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0005255v1","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0005255","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_12","alias_value":"YIUBQHEBLV5P","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_16","alias_value":"YIUBQHEBLV5POYN5","created_at":"2026-07-04T16:16:39Z"},{"alias_kind":"pith_short_8","alias_value":"YIUBQHEB","created_at":"2026-07-04T16:16:39Z"}],"graph_snapshots":[{"event_id":"sha256:303e49c5406445836b5e8df8bab5bd8381850ef47fae017bcacd89408f1af87b","target":"graph","created_at":"2026-07-04T16:16:39Z","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/0005255/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The quasar PKS 0637-753, the first celestial X-ray target of the Chandra X-ray Observatory, has revealed asymmetric X-ray structure extending from 3 to 12 arcsec west of the quasar, coincident with the inner portion of the jet previously detected in a 4.8 GHz radio image (Tingay et al. 1998). At a redshift of z=0.651, the jet is the largest (~100 kpc) and most luminous (~10^{44.6} ergs/s) of the few so far detected in X-rays. This letter presents a high resolution X-ray image of the jet, from 42 ks of data when PKS 0637-753 was on-axis and ACIS-S was near the optimum focus. For the inner porti","authors_text":"(10) Ohio State University), (2) MIT, (3) ATNF/CSIRO, 4), (4) JPL, 5), 5) ((1) Harvard-Smithsonian CfA, (5) University of Bristol, (6) PSU, (7) NASA/MSFC, (8) ISAS, (9) SUNY at Stony Brook, B.G. Piner (4), B. Wilkes (1), D.A. Schwartz (1), D.E. Harris (1), D.L. Jauncey (3), D. M. Worrall (1, E.D. Feigelson (6), E.J. Hooper (1), G. Chartas (6), H. Hirabayashi (8), H.L. Marshall (2), J.E.J. Lovell (3), K.K. Ghosh (7), K.M. Lanzetta (9), M. Birkinshaw (1, M. Elvis (1), R. A. Preston (4), S.J. Tingay (3, S. Mathur (10), S. Virani (1), W. H. Tucker (1)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T19:43:15Z","title":"Chandra Discovery of a 100 kpc X-ray Jet in PKS 0637--752"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0005255","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:d29c00200b31f297a20306586fa9b88d3376910b0095f099c9996ccfc8866de2","target":"record","created_at":"2026-07-04T16:16:39Z","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":"64c795a581ba4e0c1985a2e1a665892d3de5d6f19fdcd46938d9c32ee9325cbf","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T19:43:15Z","title_canon_sha256":"59b1086096ae01f45417f6a5aec26397f9c774bde728dc55fb7732c3feb63d36"},"schema_version":"1.0","source":{"id":"astro-ph/0005255","kind":"arxiv","version":1}},"canonical_sha256":"c228181c815d7af761bd7ed0c67f1ab4a9217dab87a96e1005e42114b89516a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c228181c815d7af761bd7ed0c67f1ab4a9217dab87a96e1005e42114b89516a8","first_computed_at":"2026-07-04T16:16:39.419659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:16:39.419659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xWQr+UIkvd96RkQpBahfU8BZwLyAI+yLT/b1E92528wdhRS2s32T7zfr5ec0/3z43iFIhv2kso6Nb6qxdkf+Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:16:39.420098Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0005255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d29c00200b31f297a20306586fa9b88d3376910b0095f099c9996ccfc8866de2","sha256:303e49c5406445836b5e8df8bab5bd8381850ef47fae017bcacd89408f1af87b"],"state_sha256":"403b6cc5a02dbb1fecbdf4353dd58e933c13141820d61e3f1e61e0030e0a66a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jCvsiljkhWdSaaYWUGM8JXfU26U3I/nX8/2BHTHQnmUSpxn9BMw0annL1KD2JrQaadGqFZIiVDoYyLhmMRU7BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T19:13:46.743570Z","bundle_sha256":"fe4a16a64eafbf89d2736a4dec74694e8e045e510f90c7dbe9cb88b0d6cb7cdb"}}