{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MYWZO7HLMANODJHRMYRO34GKFK","short_pith_number":"pith:MYWZO7HL","canonical_record":{"source":{"id":"1802.10306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T08:30:00Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2b96ca98cbdbb3807c2705c944005ccbdb0ef6de448f0bfb963431ec46c6b06e","abstract_canon_sha256":"c346f5d45c7c6bdbe096f43c859dbe20a43939f851708a7e0adff7d1c2c4184c"},"schema_version":"1.0"},"canonical_sha256":"662d977ceb601ae1a4f16622edf0ca2a98d1a2ac70a5d422ed8d306a3bea5545","source":{"kind":"arxiv","id":"1802.10306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10306","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10306v1","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10306","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"pith_short_12","alias_value":"MYWZO7HLMANO","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MYWZO7HLMANODJHR","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MYWZO7HL","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MYWZO7HLMANODJHRMYRO34GKFK","target":"record","payload":{"canonical_record":{"source":{"id":"1802.10306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T08:30:00Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2b96ca98cbdbb3807c2705c944005ccbdb0ef6de448f0bfb963431ec46c6b06e","abstract_canon_sha256":"c346f5d45c7c6bdbe096f43c859dbe20a43939f851708a7e0adff7d1c2c4184c"},"schema_version":"1.0"},"canonical_sha256":"662d977ceb601ae1a4f16622edf0ca2a98d1a2ac70a5d422ed8d306a3bea5545","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:17.553623Z","signature_b64":"RwH7yNFPwWr+X7sBOhVmsgiLyH9wh6TKEtQkx/xIfUCHeBwo+2xzA/zWeXoqaHsyA6Mna2u2EUO2tZD8VsDpDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"662d977ceb601ae1a4f16622edf0ca2a98d1a2ac70a5d422ed8d306a3bea5545","last_reissued_at":"2026-05-18T00:22:17.552969Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:17.552969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.10306","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":"2026-05-18T00:22:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3l/Bmfzlb8CvyDfRLn+eR6w2/BfWwvH9z3z0G+MJ84OHW6yj+tPcbBptCJgGCPSzVdtFLRFYNBTXod0B+nxiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T18:33:46.544972Z"},"content_sha256":"6a4bcde2bd44154831fa00a1cf29b5bd7f4ac529180d47e9fec4459cb24dd022","schema_version":"1.0","event_id":"sha256:6a4bcde2bd44154831fa00a1cf29b5bd7f4ac529180d47e9fec4459cb24dd022"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MYWZO7HLMANODJHRMYRO34GKFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AGN outflows and feedback twenty years on","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A. Fl\\\"utsch, C.M. Harrison (ESO), C.N. Tadhunter, D. Kakkad, G. Vietri, M. Perna, T. Costa","submitted_at":"2018-02-28T08:30:00Z","abstract_excerpt":"It is the twentieth anniversary of the publication of the seminal papers by Magorrian et al. and Silk & Rees which, along with other related work, ignited an explosion of publications connecting active galactic nuclei (AGN)-driven outflows to galaxy evolution. With a surge in observations of AGN outflows, studies are attempting to directly test AGN feedback models using the outflow properties. With a focus on outflows traced by optical and CO emission lines, we discuss significant challenges which greatly complicate this task from both an observational and theoretical perspective. We highlight"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10306","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":"2026-05-18T00:22:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cBKHd0lkKcgpcTEg+7RhKSNU3kQ48XCLkL0q3xW1UlCb9VHgG65BjDizX6bI1IWcVp7PuQlnm9AMUerw7J8uCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T18:33:46.545330Z"},"content_sha256":"5d17b975fc98f2e20bd2dbbc06b7d6906f551fd13ac8360232ddb1ced9dd60f9","schema_version":"1.0","event_id":"sha256:5d17b975fc98f2e20bd2dbbc06b7d6906f551fd13ac8360232ddb1ced9dd60f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MYWZO7HLMANODJHRMYRO34GKFK/bundle.json","state_url":"https://pith.science/pith/MYWZO7HLMANODJHRMYRO34GKFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MYWZO7HLMANODJHRMYRO34GKFK/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":"2026-05-21T18:33:46Z","links":{"resolver":"https://pith.science/pith/MYWZO7HLMANODJHRMYRO34GKFK","bundle":"https://pith.science/pith/MYWZO7HLMANODJHRMYRO34GKFK/bundle.json","state":"https://pith.science/pith/MYWZO7HLMANODJHRMYRO34GKFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MYWZO7HLMANODJHRMYRO34GKFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MYWZO7HLMANODJHRMYRO34GKFK","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":"c346f5d45c7c6bdbe096f43c859dbe20a43939f851708a7e0adff7d1c2c4184c","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T08:30:00Z","title_canon_sha256":"2b96ca98cbdbb3807c2705c944005ccbdb0ef6de448f0bfb963431ec46c6b06e"},"schema_version":"1.0","source":{"id":"1802.10306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10306","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10306v1","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10306","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"pith_short_12","alias_value":"MYWZO7HLMANO","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MYWZO7HLMANODJHR","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MYWZO7HL","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:5d17b975fc98f2e20bd2dbbc06b7d6906f551fd13ac8360232ddb1ced9dd60f9","target":"graph","created_at":"2026-05-18T00:22:17Z","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":"It is the twentieth anniversary of the publication of the seminal papers by Magorrian et al. and Silk & Rees which, along with other related work, ignited an explosion of publications connecting active galactic nuclei (AGN)-driven outflows to galaxy evolution. With a surge in observations of AGN outflows, studies are attempting to directly test AGN feedback models using the outflow properties. With a focus on outflows traced by optical and CO emission lines, we discuss significant challenges which greatly complicate this task from both an observational and theoretical perspective. We highlight","authors_text":"A. Fl\\\"utsch, C.M. Harrison (ESO), C.N. Tadhunter, D. Kakkad, G. Vietri, M. Perna, T. Costa","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T08:30:00Z","title":"AGN outflows and feedback twenty years on"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10306","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":"sha256:6a4bcde2bd44154831fa00a1cf29b5bd7f4ac529180d47e9fec4459cb24dd022","target":"record","created_at":"2026-05-18T00:22:17Z","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":"c346f5d45c7c6bdbe096f43c859dbe20a43939f851708a7e0adff7d1c2c4184c","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T08:30:00Z","title_canon_sha256":"2b96ca98cbdbb3807c2705c944005ccbdb0ef6de448f0bfb963431ec46c6b06e"},"schema_version":"1.0","source":{"id":"1802.10306","kind":"arxiv","version":1}},"canonical_sha256":"662d977ceb601ae1a4f16622edf0ca2a98d1a2ac70a5d422ed8d306a3bea5545","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"662d977ceb601ae1a4f16622edf0ca2a98d1a2ac70a5d422ed8d306a3bea5545","first_computed_at":"2026-05-18T00:22:17.552969Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:17.552969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RwH7yNFPwWr+X7sBOhVmsgiLyH9wh6TKEtQkx/xIfUCHeBwo+2xzA/zWeXoqaHsyA6Mna2u2EUO2tZD8VsDpDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:17.553623Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.10306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a4bcde2bd44154831fa00a1cf29b5bd7f4ac529180d47e9fec4459cb24dd022","sha256:5d17b975fc98f2e20bd2dbbc06b7d6906f551fd13ac8360232ddb1ced9dd60f9"],"state_sha256":"16015ab5d17945cb8f7c36bde2dff42cab2e0aa1479f5dfc7e5d9e62986c9d3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6pdj5LGGPp1QUrdG2yRfo6Tmz2CD/k6j6otgQIkxxnxvR8Ej1oYHx4yAxhUR/Wjor5FkWZ1JC92ogIjVcK7pAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T18:33:46.547415Z","bundle_sha256":"a1ca69d145aed38c7287b0e3d4457ef13fa67e9ea45d28e2e3fd9861fed33c08"}}