{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZQ6P35K3FHMISN27KVJ5J2WNUP","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":"d03973853e6db898414dd473f99b91def3110a2561b7a2c4167ddfa7befe49e2","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-12T20:07:51Z","title_canon_sha256":"fc8706d286b06af178b32f944baaf5e369d1ce0ba425a6e9546b47d9d672186e"},"schema_version":"1.0","source":{"id":"1406.3362","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.3362","created_at":"2026-05-18T01:42:57Z"},{"alias_kind":"arxiv_version","alias_value":"1406.3362v1","created_at":"2026-05-18T01:42:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.3362","created_at":"2026-05-18T01:42:57Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ6P35K3FHMI","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ6P35K3FHMISN27","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ6P35K3","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:66844b48cecafbcf4b851fc3e55fd69940d226fbbbe8f5a22e76624744fc5dba","target":"graph","created_at":"2026-05-18T01:42:57Z","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 report on the X-ray and optical observations of galaxy groups selected from the 2dfGRS group catalog, to explore the possibility that galaxy groups hosting a giant elliptical galaxy and a large optical luminosity gap present between the two brightest group galaxies, can be associated with an extended X-ray emission, similar to that observed in fossil galaxy groups. The X-ray observations of 4 galaxy groups were carried out with Chandra telescope with 10-20 ksec exposure time. Combining the X-ray and the optical observations we find evidences for the presence of a diffuse extended X-ray emis","authors_text":"Alastair J.R. Sanderson, Ali A. Dariush, Alireza Molaeinezhad, Ghassem Gozaliasl, Habib G. Khosroshahi, Jesper Rasmussen, Trevor Ponman","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-12T20:07:51Z","title":"Optically selected fossil groups; X-ray observations and galaxy properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.3362","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:e666ec08f98defdd1b2d977381cf8a105ba9f1ed51d3bd76c200eea4d32acc60","target":"record","created_at":"2026-05-18T01:42:57Z","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":"d03973853e6db898414dd473f99b91def3110a2561b7a2c4167ddfa7befe49e2","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-12T20:07:51Z","title_canon_sha256":"fc8706d286b06af178b32f944baaf5e369d1ce0ba425a6e9546b47d9d672186e"},"schema_version":"1.0","source":{"id":"1406.3362","kind":"arxiv","version":1}},"canonical_sha256":"cc3cfdf55b29d889375f5553d4eacda3d22a75d921ce183b8379dfdc25bcacc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc3cfdf55b29d889375f5553d4eacda3d22a75d921ce183b8379dfdc25bcacc1","first_computed_at":"2026-05-18T01:42:57.861200Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:57.861200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w6mcT79Yk79saCAODA/1xzwe4SMoVqlv97QEqHljMEZ2NEKI4WW616dSo2hvNPO6DnV6611ma3mt0wvl3BrlDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:57.861705Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.3362","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e666ec08f98defdd1b2d977381cf8a105ba9f1ed51d3bd76c200eea4d32acc60","sha256:66844b48cecafbcf4b851fc3e55fd69940d226fbbbe8f5a22e76624744fc5dba"],"state_sha256":"17911aeab7def5963efc27c5a7222e9834a5bbed5924a8ba57bf4f986b697afa"}