{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:JP7VRIEUEEUI5DKF5JYSSVKZE4","short_pith_number":"pith:JP7VRIEU","canonical_record":{"source":{"id":"0905.1934","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-12T19:09:27Z","cross_cats_sorted":[],"title_canon_sha256":"9f4efb2423eca0387c757d9a24321f5561a8f5c476cf7c12ccb8302258b1e2be","abstract_canon_sha256":"3399b81a0091304557296760b2c9e275ffe04ba6614f1a0b5089179fd53302d1"},"schema_version":"1.0"},"canonical_sha256":"4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1","source":{"kind":"arxiv","id":"0905.1934","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.1934","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"arxiv_version","alias_value":"0905.1934v1","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.1934","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"pith_short_12","alias_value":"JP7VRIEUEEUI","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JP7VRIEUEEUI5DKF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JP7VRIEU","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:JP7VRIEUEEUI5DKF5JYSSVKZE4","target":"record","payload":{"canonical_record":{"source":{"id":"0905.1934","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-12T19:09:27Z","cross_cats_sorted":[],"title_canon_sha256":"9f4efb2423eca0387c757d9a24321f5561a8f5c476cf7c12ccb8302258b1e2be","abstract_canon_sha256":"3399b81a0091304557296760b2c9e275ffe04ba6614f1a0b5089179fd53302d1"},"schema_version":"1.0"},"canonical_sha256":"4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:39.835081Z","signature_b64":"/VujLMK1C9russbvuz/0QYpEmZBuvuueYEGbJk0bux9iu4dFdE3BF6tmIpkFpr/a5VlUEZ2nI+hvLh5I1ECwAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1","last_reissued_at":"2026-05-18T02:13:39.834612Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:39.834612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.1934","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":"2026-05-18T02:13:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F0jJxdDjSuP9KUiqvjdtaeDeIDoDlDRCGSG7sN7PpipNvhD6a9N/op9e2bADvpCGQgrsCtKJZBSk46qWspFwBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:31:02.735457Z"},"content_sha256":"24a0fbd346b9febf49dc0ea94b70d8e19985b81db82435bf61f10c07798311d6","schema_version":"1.0","event_id":"sha256:24a0fbd346b9febf49dc0ea94b70d8e19985b81db82435bf61f10c07798311d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:JP7VRIEUEEUI5DKF5JYSSVKZE4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An optical and X-ray study of the fossil group RX J1340.6+4018","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Claudia L. Mendes de Oliveira, Eduardo S. Cypriano, Laerte Sodr\\'e Jr, Renato A. Dupke","submitted_at":"2009-05-12T19:09:27Z","abstract_excerpt":"Fossil groups are systems with one single central elliptical galaxy and an unusual lack of luminous galaxies in the inner regions. The standard explanation for the formation of these systems suggests that the lack of bright galaxies is due to galactic cannibalism. In this study we show the results of an optical and X-ray analysis of RX J1340.6+4018, the prototype fossil group. The data indicates that RX J1340.6+4018 is similar to clusters in almost every sense, dynamical mass, X-ray luminosity, M/L and luminosity function, except for the lack of L* galaxies.\n  There are claims in the literatur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.1934","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":"2026-05-18T02:13:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pka6e9u4Wn//M228xcAInLpskZTHDn6vMY32q7fwcFKhPqj8hTv4pXrYHSbcnV3uB3xO4Fdssj+gEOUipLkNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:31:02.736028Z"},"content_sha256":"0dff765effd94fe693e8f3621d4c88d051adf7e3eb4f90c2936d3c5f8d002cf4","schema_version":"1.0","event_id":"sha256:0dff765effd94fe693e8f3621d4c88d051adf7e3eb4f90c2936d3c5f8d002cf4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/bundle.json","state_url":"https://pith.science/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/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":"2026-05-22T17:31:02Z","links":{"resolver":"https://pith.science/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4","bundle":"https://pith.science/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/bundle.json","state":"https://pith.science/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JP7VRIEUEEUI5DKF5JYSSVKZE4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:JP7VRIEUEEUI5DKF5JYSSVKZE4","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":"3399b81a0091304557296760b2c9e275ffe04ba6614f1a0b5089179fd53302d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-12T19:09:27Z","title_canon_sha256":"9f4efb2423eca0387c757d9a24321f5561a8f5c476cf7c12ccb8302258b1e2be"},"schema_version":"1.0","source":{"id":"0905.1934","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.1934","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"arxiv_version","alias_value":"0905.1934v1","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.1934","created_at":"2026-05-18T02:13:39Z"},{"alias_kind":"pith_short_12","alias_value":"JP7VRIEUEEUI","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JP7VRIEUEEUI5DKF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JP7VRIEU","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:0dff765effd94fe693e8f3621d4c88d051adf7e3eb4f90c2936d3c5f8d002cf4","target":"graph","created_at":"2026-05-18T02:13:39Z","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":"Fossil groups are systems with one single central elliptical galaxy and an unusual lack of luminous galaxies in the inner regions. The standard explanation for the formation of these systems suggests that the lack of bright galaxies is due to galactic cannibalism. In this study we show the results of an optical and X-ray analysis of RX J1340.6+4018, the prototype fossil group. The data indicates that RX J1340.6+4018 is similar to clusters in almost every sense, dynamical mass, X-ray luminosity, M/L and luminosity function, except for the lack of L* galaxies.\n  There are claims in the literatur","authors_text":"Claudia L. Mendes de Oliveira, Eduardo S. Cypriano, Laerte Sodr\\'e Jr, Renato A. Dupke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-12T19:09:27Z","title":"An optical and X-ray study of the fossil group RX J1340.6+4018"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.1934","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":"sha256:24a0fbd346b9febf49dc0ea94b70d8e19985b81db82435bf61f10c07798311d6","target":"record","created_at":"2026-05-18T02:13:39Z","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":"3399b81a0091304557296760b2c9e275ffe04ba6614f1a0b5089179fd53302d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-12T19:09:27Z","title_canon_sha256":"9f4efb2423eca0387c757d9a24321f5561a8f5c476cf7c12ccb8302258b1e2be"},"schema_version":"1.0","source":{"id":"0905.1934","kind":"arxiv","version":1}},"canonical_sha256":"4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4bff58a09421288e8d45ea71295559270faf8b91fb1bdc70597a34ffd4b2b8c1","first_computed_at":"2026-05-18T02:13:39.834612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:39.834612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/VujLMK1C9russbvuz/0QYpEmZBuvuueYEGbJk0bux9iu4dFdE3BF6tmIpkFpr/a5VlUEZ2nI+hvLh5I1ECwAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:39.835081Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.1934","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24a0fbd346b9febf49dc0ea94b70d8e19985b81db82435bf61f10c07798311d6","sha256:0dff765effd94fe693e8f3621d4c88d051adf7e3eb4f90c2936d3c5f8d002cf4"],"state_sha256":"abec7828361c515f99f37eec912b57d8bf23d1c460224383ed0df6a3729b47ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8M1jkTO3pP9VTIGM/FWvqUyhFW8uYfRwNORheG6MqqwfwihIDcnQW1d4UkU5gXbbvUA1gf8G6yvdiNYEgfZ+CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T17:31:02.738872Z","bundle_sha256":"6074c01a5d29fa2db5c6db0afc26f5592c06907ca6fd952f950665760151bea7"}}