{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:ZAA4CGRUBIGZOLH3HKLCNDYNC6","short_pith_number":"pith:ZAA4CGRU","canonical_record":{"source":{"id":"astro-ph/0106358","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-20T14:21:19Z","cross_cats_sorted":[],"title_canon_sha256":"976e11b090b0fd173f755666b990e5319e27602e1c84e1d81bdd853cc9a4d4ad","abstract_canon_sha256":"382bfee0ed2c80e6502e814ec768a018c75c2d8fbbd2f8499beee1c665f258d9"},"schema_version":"1.0"},"canonical_sha256":"c801c11a340a0d972cfb3a96268f0d17b4ba86adfb908a0285abc9ee27f4dc46","source":{"kind":"arxiv","id":"astro-ph/0106358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106358","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106358v1","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106358","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"ZAA4CGRUBIGZ","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_16","alias_value":"ZAA4CGRUBIGZOLH3","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_8","alias_value":"ZAA4CGRU","created_at":"2026-07-04T14:11:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:ZAA4CGRUBIGZOLH3HKLCNDYNC6","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0106358","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-20T14:21:19Z","cross_cats_sorted":[],"title_canon_sha256":"976e11b090b0fd173f755666b990e5319e27602e1c84e1d81bdd853cc9a4d4ad","abstract_canon_sha256":"382bfee0ed2c80e6502e814ec768a018c75c2d8fbbd2f8499beee1c665f258d9"},"schema_version":"1.0"},"canonical_sha256":"c801c11a340a0d972cfb3a96268f0d17b4ba86adfb908a0285abc9ee27f4dc46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:11:19.505523Z","signature_b64":"v/xWWZAIRM0XHEZkovZ4LwChnjuHFxamrTIFW9pJACeh6b/UZx3MJuEKWcTKApSMM8cfJPLTuioQ/OXmTH+9Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c801c11a340a0d972cfb3a96268f0d17b4ba86adfb908a0285abc9ee27f4dc46","last_reissued_at":"2026-07-04T14:11:19.505060Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:11:19.505060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0106358","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":"2026-07-04T14:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RFHXUY3rK8waFAlndV5NGltB9FhNi3Z5v6OWks1uEY7qHxCdj7xJYXAuET8FT1hnqozieB35jFgCzJgqV//2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:35:40.722237Z"},"content_sha256":"b6dec92225eec57e1a425ae8967e5f0420f3cfa93e558b7856cb676163cb73e1","schema_version":"1.0","event_id":"sha256:b6dec92225eec57e1a425ae8967e5f0420f3cfa93e558b7856cb676163cb73e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:ZAA4CGRUBIGZOLH3HKLCNDYNC6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Galactic Mergers with Supermassive Black Holes","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"David Merritt (Rutgers University), Fidel Cruz","submitted_at":"2001-06-20T14:21:19Z","abstract_excerpt":"We present the results of N-body simulations of the accretion of high-density dwarf galaxies by low-density giant galaxies. Both galaxies contain power-law central density cusps and point masses representing supermassive black holes; the ratio of galaxy masses is 3:1. The cusp of the dwarf galaxy is always disrupted during the merger, leading to a remnant with a weak power law in the intrinsic density and a ``core'' in the projected density. Removing both black holes from the giant and dwarf galaxies allows the dwarf galaxy to remain intact and leads to a remnant with a high central density, c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106358","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/0106358/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":"2026-07-04T14:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k1cwFjANme1bawnH84eBVaVNug4O7kDAChodqNMeyG/XOw63tLlOcn5QIJvClBdSxYZ4mHcxWT73wMSbiNBMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:35:40.722623Z"},"content_sha256":"751a044f7cb153bcc6318b2f2796f6f1622d0be8bdcb61fdffaaba96db9785b4","schema_version":"1.0","event_id":"sha256:751a044f7cb153bcc6318b2f2796f6f1622d0be8bdcb61fdffaaba96db9785b4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/bundle.json","state_url":"https://pith.science/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/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":"2026-07-04T19:35:40Z","links":{"resolver":"https://pith.science/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6","bundle":"https://pith.science/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/bundle.json","state":"https://pith.science/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZAA4CGRUBIGZOLH3HKLCNDYNC6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:ZAA4CGRUBIGZOLH3HKLCNDYNC6","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":"382bfee0ed2c80e6502e814ec768a018c75c2d8fbbd2f8499beee1c665f258d9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-20T14:21:19Z","title_canon_sha256":"976e11b090b0fd173f755666b990e5319e27602e1c84e1d81bdd853cc9a4d4ad"},"schema_version":"1.0","source":{"id":"astro-ph/0106358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106358","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106358v1","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106358","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"ZAA4CGRUBIGZ","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_16","alias_value":"ZAA4CGRUBIGZOLH3","created_at":"2026-07-04T14:11:19Z"},{"alias_kind":"pith_short_8","alias_value":"ZAA4CGRU","created_at":"2026-07-04T14:11:19Z"}],"graph_snapshots":[{"event_id":"sha256:751a044f7cb153bcc6318b2f2796f6f1622d0be8bdcb61fdffaaba96db9785b4","target":"graph","created_at":"2026-07-04T14:11:19Z","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/0106358/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the results of N-body simulations of the accretion of high-density dwarf galaxies by low-density giant galaxies. Both galaxies contain power-law central density cusps and point masses representing supermassive black holes; the ratio of galaxy masses is 3:1. The cusp of the dwarf galaxy is always disrupted during the merger, leading to a remnant with a weak power law in the intrinsic density and a ``core'' in the projected density. Removing both black holes from the giant and dwarf galaxies allows the dwarf galaxy to remain intact and leads to a remnant with a high central density, c","authors_text":"David Merritt (Rutgers University), Fidel Cruz","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-06-20T14:21:19Z","title":"Galactic Mergers with Supermassive Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106358","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:b6dec92225eec57e1a425ae8967e5f0420f3cfa93e558b7856cb676163cb73e1","target":"record","created_at":"2026-07-04T14:11:19Z","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":"382bfee0ed2c80e6502e814ec768a018c75c2d8fbbd2f8499beee1c665f258d9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-20T14:21:19Z","title_canon_sha256":"976e11b090b0fd173f755666b990e5319e27602e1c84e1d81bdd853cc9a4d4ad"},"schema_version":"1.0","source":{"id":"astro-ph/0106358","kind":"arxiv","version":1}},"canonical_sha256":"c801c11a340a0d972cfb3a96268f0d17b4ba86adfb908a0285abc9ee27f4dc46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c801c11a340a0d972cfb3a96268f0d17b4ba86adfb908a0285abc9ee27f4dc46","first_computed_at":"2026-07-04T14:11:19.505060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:11:19.505060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v/xWWZAIRM0XHEZkovZ4LwChnjuHFxamrTIFW9pJACeh6b/UZx3MJuEKWcTKApSMM8cfJPLTuioQ/OXmTH+9Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:11:19.505523Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0106358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6dec92225eec57e1a425ae8967e5f0420f3cfa93e558b7856cb676163cb73e1","sha256:751a044f7cb153bcc6318b2f2796f6f1622d0be8bdcb61fdffaaba96db9785b4"],"state_sha256":"438269e96dafd06a230aee6fa69226713a05477499928c7755b1a33680037405"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zwRBohgA8cTDAX/fakq0FAqgavw4m7M0kdyrm7+yeRuctW0eyppghXmX27R8S+IyD/uFXvTfcsrODdZ1gOdPBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T19:35:40.724686Z","bundle_sha256":"0b35af14d5d92cffd719d659b66280d0134330bf59cb94bad752dff1f658b0c1"}}