{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:M36ENEU6LQTACS7J7J7WXI5BIV","short_pith_number":"pith:M36ENEU6","canonical_record":{"source":{"id":"1609.03425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-12T14:37:53Z","cross_cats_sorted":[],"title_canon_sha256":"d889358f5919e5affc5925ce5ed5ce9230443e0f6b6c2dc58fc65a7d62f77e14","abstract_canon_sha256":"2b8acc348ad942ce873fb560f70ee3c8e40f90a93cc5f874838eedbc7a397ee3"},"schema_version":"1.0"},"canonical_sha256":"66fc46929e5c26014be9fa7f6ba3a14578fe470c0f9dba50b052407ad7af4e45","source":{"kind":"arxiv","id":"1609.03425","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.03425","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"arxiv_version","alias_value":"1609.03425v1","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.03425","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"pith_short_12","alias_value":"M36ENEU6LQTA","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"M36ENEU6LQTACS7J","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"M36ENEU6","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:M36ENEU6LQTACS7J7J7WXI5BIV","target":"record","payload":{"canonical_record":{"source":{"id":"1609.03425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-12T14:37:53Z","cross_cats_sorted":[],"title_canon_sha256":"d889358f5919e5affc5925ce5ed5ce9230443e0f6b6c2dc58fc65a7d62f77e14","abstract_canon_sha256":"2b8acc348ad942ce873fb560f70ee3c8e40f90a93cc5f874838eedbc7a397ee3"},"schema_version":"1.0"},"canonical_sha256":"66fc46929e5c26014be9fa7f6ba3a14578fe470c0f9dba50b052407ad7af4e45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:29.804040Z","signature_b64":"mRJ9OPWk2t/pQS1JGRFn6iSTq3vGYRKUvn5gkQljrLGr2qzhg/Fz6O1tqI4XAtcu0eckRpsPOivCr/sbOl/MBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66fc46929e5c26014be9fa7f6ba3a14578fe470c0f9dba50b052407ad7af4e45","last_reissued_at":"2026-05-18T00:54:29.803358Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:29.803358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.03425","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":"2026-05-18T00:54:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MgZO7tepLUkBUVYuKVxNlqy2n41Vy1vFV6UflBCmkGITnvBJagKhf49LTACMv/vO45SFhXYIwh3uvBQb7aboCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:20:15.711704Z"},"content_sha256":"3d85f96eabf95c97c62cda0e416f61b004bc1ca52f0837500d5ffa5f2065dd0f","schema_version":"1.0","event_id":"sha256:3d85f96eabf95c97c62cda0e416f61b004bc1ca52f0837500d5ffa5f2065dd0f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:M36ENEU6LQTACS7J7J7WXI5BIV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting Relativistic X-ray Jets in High-Redshift Quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aneta Siemiginowska, C. C. Cheung, D. A. Schwartz, David A. van Dyk, Davide Donato, D. E. Harris, Fabrizio Tavecchio, J. F. C. Wardle, Kathryn McKeough, Laura Maraschi, Lukasz Stawarz, Nathan Stein, N. P. Lee, Vasileios Stampoulis, Vinay L. Kashyap","submitted_at":"2016-09-12T14:37:53Z","abstract_excerpt":"We analyze Chandra X-ray images of a sample of 11 quasars that are known to contain kiloparsec scale radio jets. The sample consists of five high-redshift (z >= 3.6) flat-spectrum radio quasars, and six intermediate redshift (2.1 < z < 2.9) quasars. The dataset includes four sources with integrated steep radio spectra and seven with flat radio spectra. A total of 25 radio jet features are present in this sample. We apply a Bayesian multi-scale image reconstruction method to detect and measure the X-ray emission from the jets. We compute deviations from a baseline model that does not include th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.03425","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":""},"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":"2026-05-18T00:54:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mq2oUjEZKVUW0XRzATW5jlN8XAsjiXptEfoZBcFOWXAfXCoaQuuR6HgHoFDf4L1f/AWfjMWlw6QtEgrHaXEGCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:20:15.712058Z"},"content_sha256":"547260c1e60f61eea8c1d11c9e79112b82fa95dfc0eb3bcc5ddc0061655e606e","schema_version":"1.0","event_id":"sha256:547260c1e60f61eea8c1d11c9e79112b82fa95dfc0eb3bcc5ddc0061655e606e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M36ENEU6LQTACS7J7J7WXI5BIV/bundle.json","state_url":"https://pith.science/pith/M36ENEU6LQTACS7J7J7WXI5BIV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M36ENEU6LQTACS7J7J7WXI5BIV/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":"2026-05-28T13:20:15Z","links":{"resolver":"https://pith.science/pith/M36ENEU6LQTACS7J7J7WXI5BIV","bundle":"https://pith.science/pith/M36ENEU6LQTACS7J7J7WXI5BIV/bundle.json","state":"https://pith.science/pith/M36ENEU6LQTACS7J7J7WXI5BIV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M36ENEU6LQTACS7J7J7WXI5BIV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:M36ENEU6LQTACS7J7J7WXI5BIV","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":"2b8acc348ad942ce873fb560f70ee3c8e40f90a93cc5f874838eedbc7a397ee3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-12T14:37:53Z","title_canon_sha256":"d889358f5919e5affc5925ce5ed5ce9230443e0f6b6c2dc58fc65a7d62f77e14"},"schema_version":"1.0","source":{"id":"1609.03425","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.03425","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"arxiv_version","alias_value":"1609.03425v1","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.03425","created_at":"2026-05-18T00:54:29Z"},{"alias_kind":"pith_short_12","alias_value":"M36ENEU6LQTA","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"M36ENEU6LQTACS7J","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"M36ENEU6","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:547260c1e60f61eea8c1d11c9e79112b82fa95dfc0eb3bcc5ddc0061655e606e","target":"graph","created_at":"2026-05-18T00:54:29Z","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"},"paper":{"abstract_excerpt":"We analyze Chandra X-ray images of a sample of 11 quasars that are known to contain kiloparsec scale radio jets. The sample consists of five high-redshift (z >= 3.6) flat-spectrum radio quasars, and six intermediate redshift (2.1 < z < 2.9) quasars. The dataset includes four sources with integrated steep radio spectra and seven with flat radio spectra. A total of 25 radio jet features are present in this sample. We apply a Bayesian multi-scale image reconstruction method to detect and measure the X-ray emission from the jets. We compute deviations from a baseline model that does not include th","authors_text":"Aneta Siemiginowska, C. C. Cheung, D. A. Schwartz, David A. van Dyk, Davide Donato, D. E. Harris, Fabrizio Tavecchio, J. F. C. Wardle, Kathryn McKeough, Laura Maraschi, Lukasz Stawarz, Nathan Stein, N. P. Lee, Vasileios Stampoulis, Vinay L. Kashyap","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-12T14:37:53Z","title":"Detecting Relativistic X-ray Jets in High-Redshift Quasars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.03425","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":"sha256:3d85f96eabf95c97c62cda0e416f61b004bc1ca52f0837500d5ffa5f2065dd0f","target":"record","created_at":"2026-05-18T00:54:29Z","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":"2b8acc348ad942ce873fb560f70ee3c8e40f90a93cc5f874838eedbc7a397ee3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-12T14:37:53Z","title_canon_sha256":"d889358f5919e5affc5925ce5ed5ce9230443e0f6b6c2dc58fc65a7d62f77e14"},"schema_version":"1.0","source":{"id":"1609.03425","kind":"arxiv","version":1}},"canonical_sha256":"66fc46929e5c26014be9fa7f6ba3a14578fe470c0f9dba50b052407ad7af4e45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66fc46929e5c26014be9fa7f6ba3a14578fe470c0f9dba50b052407ad7af4e45","first_computed_at":"2026-05-18T00:54:29.803358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:29.803358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mRJ9OPWk2t/pQS1JGRFn6iSTq3vGYRKUvn5gkQljrLGr2qzhg/Fz6O1tqI4XAtcu0eckRpsPOivCr/sbOl/MBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:29.804040Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.03425","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d85f96eabf95c97c62cda0e416f61b004bc1ca52f0837500d5ffa5f2065dd0f","sha256:547260c1e60f61eea8c1d11c9e79112b82fa95dfc0eb3bcc5ddc0061655e606e"],"state_sha256":"367ab1d42ef21e7e70f4c257df4ee25e435916e1f4c79f2f2033a14ddf5b9638"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I30wT1B0tO2T8UD8SDoG7e/MG6VI8S4la4P6ipb1lEIBnFDtTHH028M/lmwYcJdB9wEybHA65FUh0jKfcxVtCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:20:15.714325Z","bundle_sha256":"6cbcf39963f114bbc769cc8bf32853edd79a099144420c974813d16ece3a1953"}}