{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QYJRJCD5AES6ZYSAETOSYZL42S","short_pith_number":"pith:QYJRJCD5","canonical_record":{"source":{"id":"1807.01490","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-04T09:11:31Z","cross_cats_sorted":[],"title_canon_sha256":"0f9d27ebb8ddfe2352925da8161fd7f3df0bb2ab4b601960e142f1df832448a0","abstract_canon_sha256":"3f2ed62678e261ba9b19c48fd4a5616174b4510cf871f1842d3a343dc5ad756e"},"schema_version":"1.0"},"canonical_sha256":"861314887d0125ece24024dd2c657cd49b0067e09675d79605be17bf7e877ec8","source":{"kind":"arxiv","id":"1807.01490","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01490","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01490v2","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01490","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"pith_short_12","alias_value":"QYJRJCD5AES6","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QYJRJCD5AES6ZYSA","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QYJRJCD5","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QYJRJCD5AES6ZYSAETOSYZL42S","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01490","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-04T09:11:31Z","cross_cats_sorted":[],"title_canon_sha256":"0f9d27ebb8ddfe2352925da8161fd7f3df0bb2ab4b601960e142f1df832448a0","abstract_canon_sha256":"3f2ed62678e261ba9b19c48fd4a5616174b4510cf871f1842d3a343dc5ad756e"},"schema_version":"1.0"},"canonical_sha256":"861314887d0125ece24024dd2c657cd49b0067e09675d79605be17bf7e877ec8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:23.853065Z","signature_b64":"bdll/KIjZZXgZsEuN8Bfzi/lKPVoXOpZbQZpigqrpjK5magehkWAosAxgOqZBgPVle5ZcxnI57hjD7ebgzdsAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"861314887d0125ece24024dd2c657cd49b0067e09675d79605be17bf7e877ec8","last_reissued_at":"2026-05-17T23:48:23.852423Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:23.852423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01490","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":"2026-05-17T23:48:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIK12HRFFWpCMP79w9BZvup1rZVAwk1AeUMQSxykOKFB68J91devmtfeq/Dy1EzrgcCj8Dhio9jxgoRbdN5CCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:06:03.832538Z"},"content_sha256":"45b8768f4d10da7c246e14f478272495b881bb33e2c24533aa513c6149bf6e39","schema_version":"1.0","event_id":"sha256:45b8768f4d10da7c246e14f478272495b881bb33e2c24533aa513c6149bf6e39"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QYJRJCD5AES6ZYSAETOSYZL42S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intrinsic and observed dual AGN fractions from major mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Del Olmo, C. Ramos Almeida, G. Valent\\'i-Rojas, I. M\\'arquez, J.D. Perea, J.L. Tous, J.M. Solanes","submitted_at":"2018-07-04T09:11:31Z","abstract_excerpt":"A suite of 432 collisionless simulations of bound pairs of spiral galaxies with mass ratios 1:1 and 3:1, and global properties consistent with the $\\Lambda$CDM paradigm, is used to test the conjecture that major mergers fuel the dual AGN (DAGN) of the local volume. Our analysis is based on the premise that the essential aspects of this scenario can be captured by replacing the physics of the central BH with restrictions on their relative separation in phase space. We introduce several estimates of the DAGN fraction and infer predictions for the activity levels and resolution limits usually inv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01490","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":"2026-05-17T23:48:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1XZa4c3Iy+mXd7qKx467IkjYPLymM3INkfWA8HGFmiotFVRI+hkxgdtwxK89dSfOTfHVF0BW2wn6YJlyfKpQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:06:03.833172Z"},"content_sha256":"75bb7ad5567d39b50ac979bb260b82c86376b4c32ffafb4b1e322cc954f69218","schema_version":"1.0","event_id":"sha256:75bb7ad5567d39b50ac979bb260b82c86376b4c32ffafb4b1e322cc954f69218"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYJRJCD5AES6ZYSAETOSYZL42S/bundle.json","state_url":"https://pith.science/pith/QYJRJCD5AES6ZYSAETOSYZL42S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYJRJCD5AES6ZYSAETOSYZL42S/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":"2026-05-30T09:06:03Z","links":{"resolver":"https://pith.science/pith/QYJRJCD5AES6ZYSAETOSYZL42S","bundle":"https://pith.science/pith/QYJRJCD5AES6ZYSAETOSYZL42S/bundle.json","state":"https://pith.science/pith/QYJRJCD5AES6ZYSAETOSYZL42S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYJRJCD5AES6ZYSAETOSYZL42S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QYJRJCD5AES6ZYSAETOSYZL42S","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":"3f2ed62678e261ba9b19c48fd4a5616174b4510cf871f1842d3a343dc5ad756e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-04T09:11:31Z","title_canon_sha256":"0f9d27ebb8ddfe2352925da8161fd7f3df0bb2ab4b601960e142f1df832448a0"},"schema_version":"1.0","source":{"id":"1807.01490","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01490","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01490v2","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01490","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"pith_short_12","alias_value":"QYJRJCD5AES6","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QYJRJCD5AES6ZYSA","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QYJRJCD5","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:75bb7ad5567d39b50ac979bb260b82c86376b4c32ffafb4b1e322cc954f69218","target":"graph","created_at":"2026-05-17T23:48:23Z","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 suite of 432 collisionless simulations of bound pairs of spiral galaxies with mass ratios 1:1 and 3:1, and global properties consistent with the $\\Lambda$CDM paradigm, is used to test the conjecture that major mergers fuel the dual AGN (DAGN) of the local volume. Our analysis is based on the premise that the essential aspects of this scenario can be captured by replacing the physics of the central BH with restrictions on their relative separation in phase space. We introduce several estimates of the DAGN fraction and infer predictions for the activity levels and resolution limits usually inv","authors_text":"A. Del Olmo, C. Ramos Almeida, G. Valent\\'i-Rojas, I. M\\'arquez, J.D. Perea, J.L. Tous, J.M. Solanes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-04T09:11:31Z","title":"Intrinsic and observed dual AGN fractions from major mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01490","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":"sha256:45b8768f4d10da7c246e14f478272495b881bb33e2c24533aa513c6149bf6e39","target":"record","created_at":"2026-05-17T23:48:23Z","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":"3f2ed62678e261ba9b19c48fd4a5616174b4510cf871f1842d3a343dc5ad756e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-04T09:11:31Z","title_canon_sha256":"0f9d27ebb8ddfe2352925da8161fd7f3df0bb2ab4b601960e142f1df832448a0"},"schema_version":"1.0","source":{"id":"1807.01490","kind":"arxiv","version":2}},"canonical_sha256":"861314887d0125ece24024dd2c657cd49b0067e09675d79605be17bf7e877ec8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"861314887d0125ece24024dd2c657cd49b0067e09675d79605be17bf7e877ec8","first_computed_at":"2026-05-17T23:48:23.852423Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:23.852423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bdll/KIjZZXgZsEuN8Bfzi/lKPVoXOpZbQZpigqrpjK5magehkWAosAxgOqZBgPVle5ZcxnI57hjD7ebgzdsAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:23.853065Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01490","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45b8768f4d10da7c246e14f478272495b881bb33e2c24533aa513c6149bf6e39","sha256:75bb7ad5567d39b50ac979bb260b82c86376b4c32ffafb4b1e322cc954f69218"],"state_sha256":"03196c2fe7b5967ba2ac63de5386cbe9409aa02b829b7ab5fd3ee08dc83854a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NP1De19uwr2OrznGwZ3ehnHJT5pPoz7YIJw+LQHJDc8ENcFYddI8tCxC/cvPZCOChV6eaDrSg8MxSuRoUNPBCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:06:03.836593Z","bundle_sha256":"bdf716513e18ba8439ecdb2ed636b66408aee43980033eaec3dfc7d623a7a55e"}}