{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WBUECMSP7UBQ57KILDB3SJYD36","short_pith_number":"pith:WBUECMSP","canonical_record":{"source":{"id":"1801.05442","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-16T19:00:18Z","cross_cats_sorted":[],"title_canon_sha256":"424930a9b07d639c1d67c61d2db43fa108e94306c05bfde4d8a365169b12fde2","abstract_canon_sha256":"de62d1b617c6f2bc61473b0638e68fcfd15ee386d7dbf3f4f76b6b9f889ad85d"},"schema_version":"1.0"},"canonical_sha256":"b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e","source":{"kind":"arxiv","id":"1801.05442","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.05442","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"arxiv_version","alias_value":"1801.05442v2","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.05442","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"pith_short_12","alias_value":"WBUECMSP7UBQ","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"WBUECMSP7UBQ57KI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"WBUECMSP","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WBUECMSP7UBQ57KILDB3SJYD36","target":"record","payload":{"canonical_record":{"source":{"id":"1801.05442","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-16T19:00:18Z","cross_cats_sorted":[],"title_canon_sha256":"424930a9b07d639c1d67c61d2db43fa108e94306c05bfde4d8a365169b12fde2","abstract_canon_sha256":"de62d1b617c6f2bc61473b0638e68fcfd15ee386d7dbf3f4f76b6b9f889ad85d"},"schema_version":"1.0"},"canonical_sha256":"b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:44.124924Z","signature_b64":"9aupsMo2Ryq4ySAKWtQ/RDV8dQEWFRMSnf7Rp59Qnt+vkmyXmtwoMr1aNYoFbdHjUSuj4uwAfZNUNoJe8NNmCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e","last_reissued_at":"2026-05-18T00:20:44.124234Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:44.124234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.05442","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:20:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e9MJ2UPJcLtqoyAk+h3xQpITHpYhQmJGiNm5z5Xu2cH9FnRq+xL00I0ZKiQPIGicuDq+82d2bu1XQeViTrDkCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:54:57.764752Z"},"content_sha256":"a0312dc0ed90748976d0f0700f195d06bf3193773c8bf02af69059b1ae0af120","schema_version":"1.0","event_id":"sha256:a0312dc0ed90748976d0f0700f195d06bf3193773c8bf02af69059b1ae0af120"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WBUECMSP7UBQ57KILDB3SJYD36","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a dual AGN at z~3.3 with 20kpc separation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Husemann, F. Arrigoni Battaia, G. Worseck, T. Shanks","submitted_at":"2018-01-16T19:00:18Z","abstract_excerpt":"A prediction of the current paradigm of the hierarchical assembly of galaxies is the presence of supermassive dual black holes at separations of a few kpc or less. In this context, we report the detection of a narrow-line emitter within the extended LyA nebula (~120kpc diameter) of the luminous radio-quiet quasi-stellar object (QSO) LBQS0302-0019 at z=3.286. We identify several high-ionization narrow emission lines (HeII, CIV, CIII]) associated with this point-like source, which we have named \"Jil\", which is only ~20kpc (2.9\") away from the QSO in projection. Emission-line diagnostics confirm "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.05442","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:20:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hgo+Iwn4CxmdaULOGGd7XmrKS7+dsCvG7GZTYhWir4R02iK9n2ksoxfuhprCSDA3aYRBK6j4sX5arJdmIaN0Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:54:57.765507Z"},"content_sha256":"c181503f3fc3e1cddfabbdc97c9baa43ab662a48f11b50ab27dab0e47ee6791f","schema_version":"1.0","event_id":"sha256:c181503f3fc3e1cddfabbdc97c9baa43ab662a48f11b50ab27dab0e47ee6791f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WBUECMSP7UBQ57KILDB3SJYD36/bundle.json","state_url":"https://pith.science/pith/WBUECMSP7UBQ57KILDB3SJYD36/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WBUECMSP7UBQ57KILDB3SJYD36/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":"2026-06-01T00:54:57Z","links":{"resolver":"https://pith.science/pith/WBUECMSP7UBQ57KILDB3SJYD36","bundle":"https://pith.science/pith/WBUECMSP7UBQ57KILDB3SJYD36/bundle.json","state":"https://pith.science/pith/WBUECMSP7UBQ57KILDB3SJYD36/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WBUECMSP7UBQ57KILDB3SJYD36/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WBUECMSP7UBQ57KILDB3SJYD36","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":"de62d1b617c6f2bc61473b0638e68fcfd15ee386d7dbf3f4f76b6b9f889ad85d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-16T19:00:18Z","title_canon_sha256":"424930a9b07d639c1d67c61d2db43fa108e94306c05bfde4d8a365169b12fde2"},"schema_version":"1.0","source":{"id":"1801.05442","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.05442","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"arxiv_version","alias_value":"1801.05442v2","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.05442","created_at":"2026-05-18T00:20:44Z"},{"alias_kind":"pith_short_12","alias_value":"WBUECMSP7UBQ","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"WBUECMSP7UBQ57KI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"WBUECMSP","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:c181503f3fc3e1cddfabbdc97c9baa43ab662a48f11b50ab27dab0e47ee6791f","target":"graph","created_at":"2026-05-18T00:20:44Z","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":"A prediction of the current paradigm of the hierarchical assembly of galaxies is the presence of supermassive dual black holes at separations of a few kpc or less. In this context, we report the detection of a narrow-line emitter within the extended LyA nebula (~120kpc diameter) of the luminous radio-quiet quasi-stellar object (QSO) LBQS0302-0019 at z=3.286. We identify several high-ionization narrow emission lines (HeII, CIV, CIII]) associated with this point-like source, which we have named \"Jil\", which is only ~20kpc (2.9\") away from the QSO in projection. Emission-line diagnostics confirm ","authors_text":"B. Husemann, F. Arrigoni Battaia, G. Worseck, T. Shanks","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-16T19:00:18Z","title":"Discovery of a dual AGN at z~3.3 with 20kpc separation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.05442","kind":"arxiv","version":2},"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:a0312dc0ed90748976d0f0700f195d06bf3193773c8bf02af69059b1ae0af120","target":"record","created_at":"2026-05-18T00:20:44Z","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":"de62d1b617c6f2bc61473b0638e68fcfd15ee386d7dbf3f4f76b6b9f889ad85d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-16T19:00:18Z","title_canon_sha256":"424930a9b07d639c1d67c61d2db43fa108e94306c05bfde4d8a365169b12fde2"},"schema_version":"1.0","source":{"id":"1801.05442","kind":"arxiv","version":2}},"canonical_sha256":"b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e","first_computed_at":"2026-05-18T00:20:44.124234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:44.124234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9aupsMo2Ryq4ySAKWtQ/RDV8dQEWFRMSnf7Rp59Qnt+vkmyXmtwoMr1aNYoFbdHjUSuj4uwAfZNUNoJe8NNmCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:44.124924Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.05442","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0312dc0ed90748976d0f0700f195d06bf3193773c8bf02af69059b1ae0af120","sha256:c181503f3fc3e1cddfabbdc97c9baa43ab662a48f11b50ab27dab0e47ee6791f"],"state_sha256":"21224e3c76df64dd74c5f49e184dd77f1f75b30c68be222901e4a91e619ff263"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tUBxCkwO8VBdioYZaFX4i1pTFE1QLU9gPBa25lVenzxz5SP1BjlqVBhZcBQGDDY9L47d9AKjHCmOLRh8gTHtAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:54:57.769901Z","bundle_sha256":"9e7c6db3502a4a194360549c718fac5a4bbd545ce7138f7c7a2375aa2123a5c4"}}