{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:LP77NWVZUTMNNCK2PBI6A7K6V3","short_pith_number":"pith:LP77NWVZ","canonical_record":{"source":{"id":"astro-ph/0405491","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2004-05-25T16:02:13Z","cross_cats_sorted":[],"title_canon_sha256":"6dc672c5e2f9a8f5630bf3a4a15b0eba572ac6bd5aa6102a779471c1f5c46590","abstract_canon_sha256":"2efd74478dcd2de9e27f977bb260d172d9613349da73ac3da29cccdcf2461fa2"},"schema_version":"1.0"},"canonical_sha256":"5bfff6dab9a4d8d6895a7851e07d5eaed1b08a5ac6497c48941026a7d59f1930","source":{"kind":"arxiv","id":"astro-ph/0405491","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0405491","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0405491v4","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0405491","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"pith_short_12","alias_value":"LP77NWVZUTMN","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"LP77NWVZUTMNNCK2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"LP77NWVZ","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:LP77NWVZUTMNNCK2PBI6A7K6V3","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0405491","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2004-05-25T16:02:13Z","cross_cats_sorted":[],"title_canon_sha256":"6dc672c5e2f9a8f5630bf3a4a15b0eba572ac6bd5aa6102a779471c1f5c46590","abstract_canon_sha256":"2efd74478dcd2de9e27f977bb260d172d9613349da73ac3da29cccdcf2461fa2"},"schema_version":"1.0"},"canonical_sha256":"5bfff6dab9a4d8d6895a7851e07d5eaed1b08a5ac6497c48941026a7d59f1930","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:27.903965Z","signature_b64":"XxAnWEp566ec2AhYkEX8snGZsNp6HQvecMBx/6baPfFijyUj17f1QMiIw00S0I0KnXo/CNYxrDE1bgwjEWI4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bfff6dab9a4d8d6895a7851e07d5eaed1b08a5ac6497c48941026a7d59f1930","last_reissued_at":"2026-05-18T02:31:27.903386Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:27.903386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0405491","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:31:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YlTWsNPY7XYstqFnzm6na4CPvxQZF+zpywQWJO3+q2lREOq5d0+8Eqnd5iYAHbNjjgHg3oD7n0n69QYRouI8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:39:43.040027Z"},"content_sha256":"3602e59b8d89b59181f2a0b39ae14dcd25065d3e40f44e265217c6bb1078c940","schema_version":"1.0","event_id":"sha256:3602e59b8d89b59181f2a0b39ae14dcd25065d3e40f44e265217c6bb1078c940"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:LP77NWVZUTMNNCK2PBI6A7K6V3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dark matter in elliptical galaxies: II. Estimating the mass within the virial radius","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) CAMK, Ewa L. Lokas (2) ((1) IAP, France, Gary A. Mamon (1), Paris, Poland), Warsaw","submitted_at":"2004-05-25T16:02:13Z","abstract_excerpt":"Elliptical galaxies are modelled with a a 4-component model: Sersic stars, LCDM dark matter (DM), hot gas and central black hole. DM is negligible in the inner regions, which are dominated by stars and the central black hole. This prevents any kinematical estimate (using a Jeans analysis) of the inner slope of the DM density profile. The gas fraction rises, but the baryon fraction decreases with radius, at least out to 10 effective radii (R_e). Even with line-of-sight velocity dispersion (VD) measurements at 4 to 6 R_e with 20 km/s accuracy and perfectly known velocity anisotropy, the total ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0405491","kind":"arxiv","version":4},"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":"2026-05-18T02:31:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cbqDgwKYJyZH1pJZrAnZpvCqBSAs+AlQ3iq8NvukOwrPnjbYb8/odmGWuRu0aQO6JWblLj9gQC7bvkXwyE7JCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:39:43.040513Z"},"content_sha256":"6e9a863c650118166ff2c7bf979a12683bac136184e591a2b6942be2a128d6b3","schema_version":"1.0","event_id":"sha256:6e9a863c650118166ff2c7bf979a12683bac136184e591a2b6942be2a128d6b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/bundle.json","state_url":"https://pith.science/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/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":"2026-05-28T17:39:43Z","links":{"resolver":"https://pith.science/pith/LP77NWVZUTMNNCK2PBI6A7K6V3","bundle":"https://pith.science/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/bundle.json","state":"https://pith.science/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LP77NWVZUTMNNCK2PBI6A7K6V3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:LP77NWVZUTMNNCK2PBI6A7K6V3","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":"2efd74478dcd2de9e27f977bb260d172d9613349da73ac3da29cccdcf2461fa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2004-05-25T16:02:13Z","title_canon_sha256":"6dc672c5e2f9a8f5630bf3a4a15b0eba572ac6bd5aa6102a779471c1f5c46590"},"schema_version":"1.0","source":{"id":"astro-ph/0405491","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0405491","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0405491v4","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0405491","created_at":"2026-05-18T02:31:27Z"},{"alias_kind":"pith_short_12","alias_value":"LP77NWVZUTMN","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"LP77NWVZUTMNNCK2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"LP77NWVZ","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:6e9a863c650118166ff2c7bf979a12683bac136184e591a2b6942be2a128d6b3","target":"graph","created_at":"2026-05-18T02:31:27Z","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":"Elliptical galaxies are modelled with a a 4-component model: Sersic stars, LCDM dark matter (DM), hot gas and central black hole. DM is negligible in the inner regions, which are dominated by stars and the central black hole. This prevents any kinematical estimate (using a Jeans analysis) of the inner slope of the DM density profile. The gas fraction rises, but the baryon fraction decreases with radius, at least out to 10 effective radii (R_e). Even with line-of-sight velocity dispersion (VD) measurements at 4 to 6 R_e with 20 km/s accuracy and perfectly known velocity anisotropy, the total ma","authors_text":"(2) CAMK, Ewa L. Lokas (2) ((1) IAP, France, Gary A. Mamon (1), Paris, Poland), Warsaw","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2004-05-25T16:02:13Z","title":"Dark matter in elliptical galaxies: II. Estimating the mass within the virial radius"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0405491","kind":"arxiv","version":4},"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":"sha256:3602e59b8d89b59181f2a0b39ae14dcd25065d3e40f44e265217c6bb1078c940","target":"record","created_at":"2026-05-18T02:31:27Z","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":"2efd74478dcd2de9e27f977bb260d172d9613349da73ac3da29cccdcf2461fa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2004-05-25T16:02:13Z","title_canon_sha256":"6dc672c5e2f9a8f5630bf3a4a15b0eba572ac6bd5aa6102a779471c1f5c46590"},"schema_version":"1.0","source":{"id":"astro-ph/0405491","kind":"arxiv","version":4}},"canonical_sha256":"5bfff6dab9a4d8d6895a7851e07d5eaed1b08a5ac6497c48941026a7d59f1930","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bfff6dab9a4d8d6895a7851e07d5eaed1b08a5ac6497c48941026a7d59f1930","first_computed_at":"2026-05-18T02:31:27.903386Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:27.903386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XxAnWEp566ec2AhYkEX8snGZsNp6HQvecMBx/6baPfFijyUj17f1QMiIw00S0I0KnXo/CNYxrDE1bgwjEWI4AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:27.903965Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0405491","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3602e59b8d89b59181f2a0b39ae14dcd25065d3e40f44e265217c6bb1078c940","sha256:6e9a863c650118166ff2c7bf979a12683bac136184e591a2b6942be2a128d6b3"],"state_sha256":"a1aa9302a778db08cd3a914ac4031004b665bf4a955c199f29514a578b7d92a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kW1WlhIsMNfRhlwmLFZZpGU6iyCYoMSq0oGlZYUUqemCGeb4jIsO/BIckhw5jtqEufIMM+tl7qV3m/xD4dp5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:39:43.043656Z","bundle_sha256":"4aa218a05fcc2fd30a58fbeec88f56e7c3849d5eb455870624843140f4fe628a"}}