{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:VEN2RPAX4UTRTUI3AAZPKS77AB","short_pith_number":"pith:VEN2RPAX","canonical_record":{"source":{"id":"astro-ph/0203468","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-26T20:40:48Z","cross_cats_sorted":[],"title_canon_sha256":"4d4bf224bcbc9de5a29c45ec56d8ea9992193c74ef7d7daa69c33ef9e9cbe69d","abstract_canon_sha256":"608fa7b523a36a34c42d59d2c965d9589c66858a22c364d13424947300f663fa"},"schema_version":"1.0"},"canonical_sha256":"a91ba8bc17e52719d11b0032f54bff00654c6bac1cbdad867a520fdc455bd730","source":{"kind":"arxiv","id":"astro-ph/0203468","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0203468","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0203468v1","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0203468","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_12","alias_value":"VEN2RPAX4UTR","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_16","alias_value":"VEN2RPAX4UTRTUI3","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_8","alias_value":"VEN2RPAX","created_at":"2026-07-04T15:17:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:VEN2RPAX4UTRTUI3AAZPKS77AB","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0203468","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-26T20:40:48Z","cross_cats_sorted":[],"title_canon_sha256":"4d4bf224bcbc9de5a29c45ec56d8ea9992193c74ef7d7daa69c33ef9e9cbe69d","abstract_canon_sha256":"608fa7b523a36a34c42d59d2c965d9589c66858a22c364d13424947300f663fa"},"schema_version":"1.0"},"canonical_sha256":"a91ba8bc17e52719d11b0032f54bff00654c6bac1cbdad867a520fdc455bd730","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:17:59.548932Z","signature_b64":"1Hj95iYsUR6MqlWQeakxmGZcxpbPeQA+oBq2cOB+kqqkthHeLHfKqyViIjMeZr/dJ6aYVTzFpNNpEky88gfoBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a91ba8bc17e52719d11b0032f54bff00654c6bac1cbdad867a520fdc455bd730","last_reissued_at":"2026-07-04T15:17:59.548491Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:17:59.548491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0203468","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":"2026-07-04T15:17:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eT/hNOVJYbBMm6/m8QhH/uZhvjY7qjuc4z7c159PzJeUC8yRltRdZd6cvWXweGnxbGM6mzRRCt+Y+Lb+MYOtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T00:34:19.717676Z"},"content_sha256":"43928c36450958dc5ff16fab74261827b6d8bc480399e74ee07c9b97e0757646","schema_version":"1.0","event_id":"sha256:43928c36450958dc5ff16fab74261827b6d8bc480399e74ee07c9b97e0757646"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:VEN2RPAX4UTRTUI3AAZPKS77AB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The slope of the black-hole mass versus velocity dispersion correlation","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alan Dressler, Alexei V. Filippenko, Carl Grillmair, Douglas Richstone, Gary Bower, Jason Pinkney, John Kormendy, John Magorrian, Karl Gebhardt, Luis C. Ho, Ralf Bender, Richard Green, Scott Tremaine, S. M. Faber, Tod R. Lauer","submitted_at":"2002-03-26T20:40:48Z","abstract_excerpt":"Observations of nearby galaxies reveal a strong correlation between the mass of the central dark object M and the velocity dispersion sigma of the host galaxy, of the form log(M/M_sun) = a + b*log(sigma/sigma_0); however, published estimates of the slope b span a wide range (3.75 to 5.3). Merritt & Ferrarese have argued that low slopes (<4) arise because of neglect of random measurement errors in the dispersions and an incorrect choice for the dispersion of the Milky Way Galaxy. We show that these explanations account for at most a small part of the slope range. Instead, the range of slopes ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0203468","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/0203468/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":"2026-07-04T15:17:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KnOVDtkZp6hF8J40EAV5GggIi8ad9ggK4w+CuxpYFgX4qV2RQtlzXz1CKObAogQXVWy1TS80zYfqPhknkIcmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T00:34:19.718257Z"},"content_sha256":"e56e30d7ea6fd5569bbf0112d140354794a58bbf567a3b838e0816c0985df107","schema_version":"1.0","event_id":"sha256:e56e30d7ea6fd5569bbf0112d140354794a58bbf567a3b838e0816c0985df107"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/bundle.json","state_url":"https://pith.science/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/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":"2026-08-08T00:34:19Z","links":{"resolver":"https://pith.science/pith/VEN2RPAX4UTRTUI3AAZPKS77AB","bundle":"https://pith.science/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/bundle.json","state":"https://pith.science/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VEN2RPAX4UTRTUI3AAZPKS77AB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:VEN2RPAX4UTRTUI3AAZPKS77AB","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":"608fa7b523a36a34c42d59d2c965d9589c66858a22c364d13424947300f663fa","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-26T20:40:48Z","title_canon_sha256":"4d4bf224bcbc9de5a29c45ec56d8ea9992193c74ef7d7daa69c33ef9e9cbe69d"},"schema_version":"1.0","source":{"id":"astro-ph/0203468","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0203468","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0203468v1","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0203468","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_12","alias_value":"VEN2RPAX4UTR","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_16","alias_value":"VEN2RPAX4UTRTUI3","created_at":"2026-07-04T15:17:59Z"},{"alias_kind":"pith_short_8","alias_value":"VEN2RPAX","created_at":"2026-07-04T15:17:59Z"}],"graph_snapshots":[{"event_id":"sha256:e56e30d7ea6fd5569bbf0112d140354794a58bbf567a3b838e0816c0985df107","target":"graph","created_at":"2026-07-04T15:17:59Z","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/0203468/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observations of nearby galaxies reveal a strong correlation between the mass of the central dark object M and the velocity dispersion sigma of the host galaxy, of the form log(M/M_sun) = a + b*log(sigma/sigma_0); however, published estimates of the slope b span a wide range (3.75 to 5.3). Merritt & Ferrarese have argued that low slopes (<4) arise because of neglect of random measurement errors in the dispersions and an incorrect choice for the dispersion of the Milky Way Galaxy. We show that these explanations account for at most a small part of the slope range. Instead, the range of slopes ar","authors_text":"Alan Dressler, Alexei V. Filippenko, Carl Grillmair, Douglas Richstone, Gary Bower, Jason Pinkney, John Kormendy, John Magorrian, Karl Gebhardt, Luis C. Ho, Ralf Bender, Richard Green, Scott Tremaine, S. M. Faber, Tod R. Lauer","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-03-26T20:40:48Z","title":"The slope of the black-hole mass versus velocity dispersion correlation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0203468","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":"sha256:43928c36450958dc5ff16fab74261827b6d8bc480399e74ee07c9b97e0757646","target":"record","created_at":"2026-07-04T15:17:59Z","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":"608fa7b523a36a34c42d59d2c965d9589c66858a22c364d13424947300f663fa","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-26T20:40:48Z","title_canon_sha256":"4d4bf224bcbc9de5a29c45ec56d8ea9992193c74ef7d7daa69c33ef9e9cbe69d"},"schema_version":"1.0","source":{"id":"astro-ph/0203468","kind":"arxiv","version":1}},"canonical_sha256":"a91ba8bc17e52719d11b0032f54bff00654c6bac1cbdad867a520fdc455bd730","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a91ba8bc17e52719d11b0032f54bff00654c6bac1cbdad867a520fdc455bd730","first_computed_at":"2026-07-04T15:17:59.548491Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:17:59.548491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1Hj95iYsUR6MqlWQeakxmGZcxpbPeQA+oBq2cOB+kqqkthHeLHfKqyViIjMeZr/dJ6aYVTzFpNNpEky88gfoBg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:17:59.548932Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0203468","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43928c36450958dc5ff16fab74261827b6d8bc480399e74ee07c9b97e0757646","sha256:e56e30d7ea6fd5569bbf0112d140354794a58bbf567a3b838e0816c0985df107"],"state_sha256":"ae3e6428aeefe0676d97111e9e207d785c77439e9fd48d939de725f0329a7ef1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FCk4qjUUJ2XYUb51BmBflkKEzZawvP/H28+AH6iRHOr2hCizzJCjvsw5ZSlCf5f3/7mKN3cABdRFsqNwUOwnAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T00:34:19.727710Z","bundle_sha256":"9e5e0b2ca7c9bbce259bbdcad4ef47e14b131bcb7f273618bb49fad3d7cf365b"}}