{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GY5ZIQYLVUMYPDZFGJVVE7XU63","short_pith_number":"pith:GY5ZIQYL","canonical_record":{"source":{"id":"1006.1894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-09T20:00:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"397aeff3d038e43483a587df47956ac8f3c680c0533910a56d6e3a660335f8a6","abstract_canon_sha256":"fd3e5effbee8b27707c2479db77c53ddab32fc415eb12a6a8f71f687cb435267"},"schema_version":"1.0"},"canonical_sha256":"363b94430bad19878f25326b527ef4f6f64004fea3cd91e0ab2144ee9c843483","source":{"kind":"arxiv","id":"1006.1894","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1894","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1894v1","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1894","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"pith_short_12","alias_value":"GY5ZIQYLVUMY","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GY5ZIQYLVUMYPDZF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GY5ZIQYL","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GY5ZIQYLVUMYPDZFGJVVE7XU63","target":"record","payload":{"canonical_record":{"source":{"id":"1006.1894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-09T20:00:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"397aeff3d038e43483a587df47956ac8f3c680c0533910a56d6e3a660335f8a6","abstract_canon_sha256":"fd3e5effbee8b27707c2479db77c53ddab32fc415eb12a6a8f71f687cb435267"},"schema_version":"1.0"},"canonical_sha256":"363b94430bad19878f25326b527ef4f6f64004fea3cd91e0ab2144ee9c843483","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:55.382659Z","signature_b64":"HXEZsw+rrc59Lvvxu1L9WN8CIWEiNLDWPzgkL1kimd2sPOKk27V0XKyPtDaJ50ekcWSfv2xXkmzgNxCPoV+pAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"363b94430bad19878f25326b527ef4f6f64004fea3cd91e0ab2144ee9c843483","last_reissued_at":"2026-05-18T02:06:55.382016Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:55.382016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.1894","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":"2026-05-18T02:06:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KIL57PaU0famb5Uv9JzQFaUEQCaXg02m4ibHZzl152rbDEn2AVKMKX7+73TRYIQ7GXtdMwpbsETyCii/XRIiCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:07:00.473885Z"},"content_sha256":"3b7a1f5757ffb7b058a260be685c35318d73b22748a632b0a9d6dd8989dc64e9","schema_version":"1.0","event_id":"sha256:3b7a1f5757ffb7b058a260be685c35318d73b22748a632b0a9d6dd8989dc64e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GY5ZIQYLVUMYPDZFGJVVE7XU63","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinematics and line strength indices in the halos of the Coma Brightest Cluster Galaxies NGC 4874 and NGC 4889","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"G. Ventimiglia, K. C. Freeman, L. Coccato, M. Arnaboldi, N. Yasuda, O. Gerhard","submitted_at":"2010-06-09T20:00:04Z","abstract_excerpt":"We investigate the stellar kinematics and line strength indices in the outer halos of brightest cluster galaxies (BCGs) in the Coma cluster to obtain the outer halo V_rot and sigma profiles and to derive constraints on the formation history of these objects. Methods: We analyzed absorption lines in deep, medium-resolution, long-slit spectra in the wavelength range ~ 4500 - 5900 Angstrom, out to ~50 kpc for NGC 4874 and ~65 kpc for NGC 4889, probing regions with a surface brightness down to mu_R ~24 mag/arcsec^2. Results: These data provide stellar velocity and velocity dispersion profiles alon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1894","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":"2026-05-18T02:06:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HhC3IKch795704Zhz57xVb/YHnn1tV42eftN1PnXo6X+GpdWYahDgTO9rjcEL5zxLsG5oxnZY0hYLrgQVnEbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:07:00.474582Z"},"content_sha256":"056482cc2b4d048c8e387961f4af802a138a06089bd4f9c774c797ea92aa1ccd","schema_version":"1.0","event_id":"sha256:056482cc2b4d048c8e387961f4af802a138a06089bd4f9c774c797ea92aa1ccd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/bundle.json","state_url":"https://pith.science/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/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":"2026-06-07T12:07:00Z","links":{"resolver":"https://pith.science/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63","bundle":"https://pith.science/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/bundle.json","state":"https://pith.science/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GY5ZIQYLVUMYPDZFGJVVE7XU63/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GY5ZIQYLVUMYPDZFGJVVE7XU63","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":"fd3e5effbee8b27707c2479db77c53ddab32fc415eb12a6a8f71f687cb435267","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-09T20:00:04Z","title_canon_sha256":"397aeff3d038e43483a587df47956ac8f3c680c0533910a56d6e3a660335f8a6"},"schema_version":"1.0","source":{"id":"1006.1894","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1894","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1894v1","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1894","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"pith_short_12","alias_value":"GY5ZIQYLVUMY","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GY5ZIQYLVUMYPDZF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GY5ZIQYL","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:056482cc2b4d048c8e387961f4af802a138a06089bd4f9c774c797ea92aa1ccd","target":"graph","created_at":"2026-05-18T02:06:55Z","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 investigate the stellar kinematics and line strength indices in the outer halos of brightest cluster galaxies (BCGs) in the Coma cluster to obtain the outer halo V_rot and sigma profiles and to derive constraints on the formation history of these objects. Methods: We analyzed absorption lines in deep, medium-resolution, long-slit spectra in the wavelength range ~ 4500 - 5900 Angstrom, out to ~50 kpc for NGC 4874 and ~65 kpc for NGC 4889, probing regions with a surface brightness down to mu_R ~24 mag/arcsec^2. Results: These data provide stellar velocity and velocity dispersion profiles alon","authors_text":"G. Ventimiglia, K. C. Freeman, L. Coccato, M. Arnaboldi, N. Yasuda, O. Gerhard","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-09T20:00:04Z","title":"Kinematics and line strength indices in the halos of the Coma Brightest Cluster Galaxies NGC 4874 and NGC 4889"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1894","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":"sha256:3b7a1f5757ffb7b058a260be685c35318d73b22748a632b0a9d6dd8989dc64e9","target":"record","created_at":"2026-05-18T02:06:55Z","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":"fd3e5effbee8b27707c2479db77c53ddab32fc415eb12a6a8f71f687cb435267","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-09T20:00:04Z","title_canon_sha256":"397aeff3d038e43483a587df47956ac8f3c680c0533910a56d6e3a660335f8a6"},"schema_version":"1.0","source":{"id":"1006.1894","kind":"arxiv","version":1}},"canonical_sha256":"363b94430bad19878f25326b527ef4f6f64004fea3cd91e0ab2144ee9c843483","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"363b94430bad19878f25326b527ef4f6f64004fea3cd91e0ab2144ee9c843483","first_computed_at":"2026-05-18T02:06:55.382016Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:55.382016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HXEZsw+rrc59Lvvxu1L9WN8CIWEiNLDWPzgkL1kimd2sPOKk27V0XKyPtDaJ50ekcWSfv2xXkmzgNxCPoV+pAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:55.382659Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.1894","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b7a1f5757ffb7b058a260be685c35318d73b22748a632b0a9d6dd8989dc64e9","sha256:056482cc2b4d048c8e387961f4af802a138a06089bd4f9c774c797ea92aa1ccd"],"state_sha256":"04db3716326be4179bcbf2aab0839cf43fe0760a11dae545ecbfba422635908b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gte2l1QuGAhagR16pQuJMYJLpUudQvXI8aA3EtDeSGDGmYv414pv0GuYv2EONoOlmWcPSSwU76gjOizvvyvyCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T12:07:00.478069Z","bundle_sha256":"7c718d912de98dc6894f91e5bd3e70040aa4da91a9da8543de077f2b1214a6c4"}}