{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DKRQZDBNUBKB2CFSPMGYC4ML2I","short_pith_number":"pith:DKRQZDBN","canonical_record":{"source":{"id":"1007.5322","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-29T20:13:26Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"dae35cc93ca4682d2fb15afdf08a5795faca9a869169e6f3bdebb34dcbabf15d","abstract_canon_sha256":"88a99e2e0b9974d122c22214da376b1f0c8e8c8c57e6004e8601a73d6ff2adf6"},"schema_version":"1.0"},"canonical_sha256":"1aa30c8c2da0541d08b27b0d81718bd23653560e00e78538c720c9c876686f01","source":{"kind":"arxiv","id":"1007.5322","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.5322","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1007.5322v1","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.5322","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"DKRQZDBNUBKB","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DKRQZDBNUBKB2CFS","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DKRQZDBN","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DKRQZDBNUBKB2CFSPMGYC4ML2I","target":"record","payload":{"canonical_record":{"source":{"id":"1007.5322","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-29T20:13:26Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"dae35cc93ca4682d2fb15afdf08a5795faca9a869169e6f3bdebb34dcbabf15d","abstract_canon_sha256":"88a99e2e0b9974d122c22214da376b1f0c8e8c8c57e6004e8601a73d6ff2adf6"},"schema_version":"1.0"},"canonical_sha256":"1aa30c8c2da0541d08b27b0d81718bd23653560e00e78538c720c9c876686f01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:01.125346Z","signature_b64":"e7wOSjjf4mxSXrKX3GW/tlNH3K03QOXlIKxoaE2bcR21usUeBmD28O1FkC6iXRZbHUvV1ERdwVBOPqUiwJ5VAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1aa30c8c2da0541d08b27b0d81718bd23653560e00e78538c720c9c876686f01","last_reissued_at":"2026-05-18T02:06:01.124683Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:01.124683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.5322","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":"2026-05-18T02:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LysBVU70hcJ8rivSRLbrg8HpGikDpB26d5ki3umT8bhitBG59pGXnlDJ2u52/4y48B6BTLrSVqqrdD1kn7EtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:17:40.278383Z"},"content_sha256":"7048073dcd628c2787db32fa14e3a266bc8f51dbe5693a25e0b7d90ec61d0903","schema_version":"1.0","event_id":"sha256:7048073dcd628c2787db32fa14e3a266bc8f51dbe5693a25e0b7d90ec61d0903"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DKRQZDBNUBKB2CFSPMGYC4ML2I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Steepening mass profiles, dark matter and environment of X-ray bright elliptical galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Eugene Churazov, Irina Zhuravleva, Ortwin Gerhard, Payel Das","submitted_at":"2010-07-29T20:13:26Z","abstract_excerpt":"We use a new non-parametric Bayesian approach to obtain the most probable mass distributions and circular velocity curves along with their confidence ranges, given deprojected density and temperature profiles of the hot gas surrounding X-ray bright elliptical galaxies. For a sample of six X-ray bright ellipticals, we find that all circular velocity curves are rising in the outer parts due to a combination of a rising temperature profile and a logarithmic pressure gradient that increases in magnitude. Comparing the circular velocity curves we obtain from X-rays to those obtained from dynamical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.5322","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":""},"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":"2026-05-18T02:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1trKBJgpsLX0kyAsc/mkD972/qAobXOu9iFrvu6cH+IgOR2xB9QJO1PVD/i0XqnAzcCEhiXSv4uhPw1HefnUAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:17:40.279020Z"},"content_sha256":"f7dfd6f8b77e4c4ec84ea065f648873857ecec90106f42dae6a104031d628e99","schema_version":"1.0","event_id":"sha256:f7dfd6f8b77e4c4ec84ea065f648873857ecec90106f42dae6a104031d628e99"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/bundle.json","state_url":"https://pith.science/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/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":"2026-05-26T00:17:40Z","links":{"resolver":"https://pith.science/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I","bundle":"https://pith.science/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/bundle.json","state":"https://pith.science/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DKRQZDBNUBKB2CFSPMGYC4ML2I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DKRQZDBNUBKB2CFSPMGYC4ML2I","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":"88a99e2e0b9974d122c22214da376b1f0c8e8c8c57e6004e8601a73d6ff2adf6","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-29T20:13:26Z","title_canon_sha256":"dae35cc93ca4682d2fb15afdf08a5795faca9a869169e6f3bdebb34dcbabf15d"},"schema_version":"1.0","source":{"id":"1007.5322","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.5322","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1007.5322v1","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.5322","created_at":"2026-05-18T02:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"DKRQZDBNUBKB","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DKRQZDBNUBKB2CFS","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DKRQZDBN","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:f7dfd6f8b77e4c4ec84ea065f648873857ecec90106f42dae6a104031d628e99","target":"graph","created_at":"2026-05-18T02:06:01Z","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":"We use a new non-parametric Bayesian approach to obtain the most probable mass distributions and circular velocity curves along with their confidence ranges, given deprojected density and temperature profiles of the hot gas surrounding X-ray bright elliptical galaxies. For a sample of six X-ray bright ellipticals, we find that all circular velocity curves are rising in the outer parts due to a combination of a rising temperature profile and a logarithmic pressure gradient that increases in magnitude. Comparing the circular velocity curves we obtain from X-rays to those obtained from dynamical ","authors_text":"Eugene Churazov, Irina Zhuravleva, Ortwin Gerhard, Payel Das","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-29T20:13:26Z","title":"Steepening mass profiles, dark matter and environment of X-ray bright elliptical galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.5322","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":"sha256:7048073dcd628c2787db32fa14e3a266bc8f51dbe5693a25e0b7d90ec61d0903","target":"record","created_at":"2026-05-18T02:06:01Z","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":"88a99e2e0b9974d122c22214da376b1f0c8e8c8c57e6004e8601a73d6ff2adf6","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-29T20:13:26Z","title_canon_sha256":"dae35cc93ca4682d2fb15afdf08a5795faca9a869169e6f3bdebb34dcbabf15d"},"schema_version":"1.0","source":{"id":"1007.5322","kind":"arxiv","version":1}},"canonical_sha256":"1aa30c8c2da0541d08b27b0d81718bd23653560e00e78538c720c9c876686f01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1aa30c8c2da0541d08b27b0d81718bd23653560e00e78538c720c9c876686f01","first_computed_at":"2026-05-18T02:06:01.124683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:01.124683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e7wOSjjf4mxSXrKX3GW/tlNH3K03QOXlIKxoaE2bcR21usUeBmD28O1FkC6iXRZbHUvV1ERdwVBOPqUiwJ5VAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:01.125346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.5322","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7048073dcd628c2787db32fa14e3a266bc8f51dbe5693a25e0b7d90ec61d0903","sha256:f7dfd6f8b77e4c4ec84ea065f648873857ecec90106f42dae6a104031d628e99"],"state_sha256":"de74d3864aa30ee4354586b2b7f83f1c28ab76d19b018d40a811fde27459662c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TR8qKrd9WTF5tmidqT51UHuGMZDyOQsqefWUoJmeeHgikPax9l7Ry7otmChX3yxI41Q+X0rqPMniDuG6WRcBAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:17:40.282658Z","bundle_sha256":"d36d68e6bd61e8440b2afe0e839d3f82a4651638398aa1b5a74c51940a5b2a6f"}}