{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:SXF7OCMKBUNUJVWLRIIBMDIDA2","short_pith_number":"pith:SXF7OCMK","canonical_record":{"source":{"id":"astro-ph/0608521","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-24T15:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"c8373f812fe96c41d8256560cd009b685d8c24b0d7eafdfc0f64be4df7ea2940","abstract_canon_sha256":"8bf20a53f70a4e0da5d33b956187e9f8f1dec13d0f66e6951199fecb402ee511"},"schema_version":"1.0"},"canonical_sha256":"95cbf7098a0d1b44d6cb8a10160d03068cf4e1cab82d89d4c9ba824a548736b3","source":{"kind":"arxiv","id":"astro-ph/0608521","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0608521","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0608521v2","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0608521","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"SXF7OCMKBUNU","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"SXF7OCMKBUNUJVWL","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"SXF7OCMK","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:SXF7OCMKBUNUJVWLRIIBMDIDA2","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0608521","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-24T15:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"c8373f812fe96c41d8256560cd009b685d8c24b0d7eafdfc0f64be4df7ea2940","abstract_canon_sha256":"8bf20a53f70a4e0da5d33b956187e9f8f1dec13d0f66e6951199fecb402ee511"},"schema_version":"1.0"},"canonical_sha256":"95cbf7098a0d1b44d6cb8a10160d03068cf4e1cab82d89d4c9ba824a548736b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:21.007090Z","signature_b64":"lon3fIrBiSeqfkfJmuHqtPYoUMS1gBPqJo4V+dMmvXZ8lPnXbhm8dNutj10XEGtp9uoH3y+tPNsZsRtwh1kdBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95cbf7098a0d1b44d6cb8a10160d03068cf4e1cab82d89d4c9ba824a548736b3","last_reissued_at":"2026-05-18T04:36:21.006643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:21.006643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0608521","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":"2026-05-18T04:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+vEDPJP3yJ0b8CmHLUrTAAZ3xgMo+qpofV9rED3HRON2CEuIrkyw6SWylONAuzu/qH3IGOnUaHJpiESaMkvQCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:50:54.124027Z"},"content_sha256":"3ceea795d4d56f08598d562204a34776bc3b7f79200b45a989fd85f230ed1497","schema_version":"1.0","event_id":"sha256:3ceea795d4d56f08598d562204a34776bc3b7f79200b45a989fd85f230ed1497"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:SXF7OCMKBUNUJVWLRIIBMDIDA2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The M-sigma Relation for Nucleated Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew R. King, Dean E. McLaughlin, Sergei Nayakshin","submitted_at":"2006-08-24T15:30:10Z","abstract_excerpt":"Momentum feedback from super-Eddington accretion offers a simple explanation for the observed M-sigma and M-M_{spheroid} relations between supermassive black holes (SMBH) and the spheroids of their host galaxies. Recently Ferrarese et al. and Wehner & Harris observed analogous relations between the masses of central star clusters and their hosts. We show that stellar winds and supernovae from such nuclear clusters (NC) give similar feedback explanations for this case also, and we discuss the connection to the Faber-Jackson relation for the spheroids themselves."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0608521","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":"2026-05-18T04:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"55kVdee8SliJ8THt5eWxPJWO3XF5VONrHQ+43IZMdz9gq1Xg7Dr3ma1P/rtBsyA5lqZg668bz8DzeKCTYhx5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:50:54.124392Z"},"content_sha256":"c5da829e91bc6aa483a7f2c1b98112ecaa2873e8b76abf2a455f460f7441dbb4","schema_version":"1.0","event_id":"sha256:c5da829e91bc6aa483a7f2c1b98112ecaa2873e8b76abf2a455f460f7441dbb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/bundle.json","state_url":"https://pith.science/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/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":"2026-05-28T19:50:54Z","links":{"resolver":"https://pith.science/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2","bundle":"https://pith.science/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/bundle.json","state":"https://pith.science/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SXF7OCMKBUNUJVWLRIIBMDIDA2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:SXF7OCMKBUNUJVWLRIIBMDIDA2","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":"8bf20a53f70a4e0da5d33b956187e9f8f1dec13d0f66e6951199fecb402ee511","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-24T15:30:10Z","title_canon_sha256":"c8373f812fe96c41d8256560cd009b685d8c24b0d7eafdfc0f64be4df7ea2940"},"schema_version":"1.0","source":{"id":"astro-ph/0608521","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0608521","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0608521v2","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0608521","created_at":"2026-05-18T04:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"SXF7OCMKBUNU","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"SXF7OCMKBUNUJVWL","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"SXF7OCMK","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:c5da829e91bc6aa483a7f2c1b98112ecaa2873e8b76abf2a455f460f7441dbb4","target":"graph","created_at":"2026-05-18T04:36:21Z","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":"Momentum feedback from super-Eddington accretion offers a simple explanation for the observed M-sigma and M-M_{spheroid} relations between supermassive black holes (SMBH) and the spheroids of their host galaxies. Recently Ferrarese et al. and Wehner & Harris observed analogous relations between the masses of central star clusters and their hosts. We show that stellar winds and supernovae from such nuclear clusters (NC) give similar feedback explanations for this case also, and we discuss the connection to the Faber-Jackson relation for the spheroids themselves.","authors_text":"Andrew R. King, Dean E. McLaughlin, Sergei Nayakshin","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-08-24T15:30:10Z","title":"The M-sigma Relation for Nucleated Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0608521","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":"sha256:3ceea795d4d56f08598d562204a34776bc3b7f79200b45a989fd85f230ed1497","target":"record","created_at":"2026-05-18T04:36:21Z","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":"8bf20a53f70a4e0da5d33b956187e9f8f1dec13d0f66e6951199fecb402ee511","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-24T15:30:10Z","title_canon_sha256":"c8373f812fe96c41d8256560cd009b685d8c24b0d7eafdfc0f64be4df7ea2940"},"schema_version":"1.0","source":{"id":"astro-ph/0608521","kind":"arxiv","version":2}},"canonical_sha256":"95cbf7098a0d1b44d6cb8a10160d03068cf4e1cab82d89d4c9ba824a548736b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95cbf7098a0d1b44d6cb8a10160d03068cf4e1cab82d89d4c9ba824a548736b3","first_computed_at":"2026-05-18T04:36:21.006643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:21.006643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lon3fIrBiSeqfkfJmuHqtPYoUMS1gBPqJo4V+dMmvXZ8lPnXbhm8dNutj10XEGtp9uoH3y+tPNsZsRtwh1kdBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:21.007090Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0608521","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ceea795d4d56f08598d562204a34776bc3b7f79200b45a989fd85f230ed1497","sha256:c5da829e91bc6aa483a7f2c1b98112ecaa2873e8b76abf2a455f460f7441dbb4"],"state_sha256":"6dab6b38aa9bcabbeeffd54138bbafe28b7e7651fcd1199a485069029852eed4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UZOq1obiQGCP6cX3QbOXntoDlagX3/yZtybGpDQluCGkw2OUwTtvtvh2+44hZivnirsFmbZ/U6VgKK5UZlERDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:50:54.126630Z","bundle_sha256":"3b927a2fbd3b4a5140edddcdf1adde28e5468209b31725b586fe7e3d7d362356"}}