{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:6FBZ2LXIMQRH4GZ4AHURU7X7BK","short_pith_number":"pith:6FBZ2LXI","canonical_record":{"source":{"id":"2603.10849","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-11T14:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"2434c9d5e04551cbb886aa508d403337f8f70d175265afe5cde61c646fa9bde8","abstract_canon_sha256":"89a33e9bdb83efe3d27165ccff3075a4985e7bb1d4d9e0340208b808bd7a34f1"},"schema_version":"1.0"},"canonical_sha256":"f1439d2ee864227e1b3c01e91a7eff0a9390f74198fe0d4b31eb7e3a989b1c8c","source":{"kind":"arxiv","id":"2603.10849","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.10849","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"arxiv_version","alias_value":"2603.10849v2","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.10849","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_12","alias_value":"6FBZ2LXIMQRH","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_16","alias_value":"6FBZ2LXIMQRH4GZ4","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_8","alias_value":"6FBZ2LXI","created_at":"2026-06-02T03:05:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:6FBZ2LXIMQRH4GZ4AHURU7X7BK","target":"record","payload":{"canonical_record":{"source":{"id":"2603.10849","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-11T14:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"2434c9d5e04551cbb886aa508d403337f8f70d175265afe5cde61c646fa9bde8","abstract_canon_sha256":"89a33e9bdb83efe3d27165ccff3075a4985e7bb1d4d9e0340208b808bd7a34f1"},"schema_version":"1.0"},"canonical_sha256":"f1439d2ee864227e1b3c01e91a7eff0a9390f74198fe0d4b31eb7e3a989b1c8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-02T03:05:05.165234Z","signature_b64":"b2ssXH/10DZJ9tJOeu0oAcoem8IWbLMKJ6bOi58i2I+QnkxypERlv08hA3XHKMv62ZdK7hMVptD5iAT3s1xNBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f1439d2ee864227e1b3c01e91a7eff0a9390f74198fe0d4b31eb7e3a989b1c8c","last_reissued_at":"2026-06-02T03:05:05.164646Z","signature_status":"signed_v1","first_computed_at":"2026-06-02T03:05:05.164646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.10849","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-02T03:05:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANGtH4c5uCEFNPR4l1+OOYci/0PsNLt/9QvgumBQYCmdcrmscXwSQY+Q7wLWWQHDk2ZRqeh6eXMgtS4n1PIwBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:38:19.527795Z"},"content_sha256":"a7ef81c9ea5393e3f3c56d7ec7891094b960b67c0cf57861525de95261cf11a5","schema_version":"1.0","event_id":"sha256:a7ef81c9ea5393e3f3c56d7ec7891094b960b67c0cf57861525de95261cf11a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:6FBZ2LXIMQRH4GZ4AHURU7X7BK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectroscopic galaxy redshifts in the Peanut cluster - a massive nearly head-on cluster merger shortly after pericenter passage","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Arshinova, A. Moiseev, E. Churazov, I. Bikmaev, I. Khabibullin, I. Khamitov, I. Zaznobin, M. Gilfanov, M. Suslikov, N. Lyskova, R. Burenin, R. Sunyaev, R. Uklein, S. Dodonov, S. Kotov, S. Sazonov","submitted_at":"2026-03-11T14:58:28Z","abstract_excerpt":"The Peanut cluster (SRGe J023820.8+200556, SRGe CL0238.3+2005, $z_{spec}$ = 0.42) has recently emerged as a candidate for a rare, massive merger, potentially analogous to the Bullet cluster. We present the results of optical identification and spectroscopic redshift measurements for 31 galaxies in the Peanut cluster, including 26 new redshifts obtained with the 6-m telescope BTA (Big Telescope Alt-azimuthal) at SAO RAS between October 2024 and January 2025. The derived distribution of line-of-sight velocities reveals the possible presence of two subclusters with a line-of-sight velocity differ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.10849","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.10849/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-02T03:05:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/h34wKs+Mwuk45ZtOuuBPrDl40GWrIDquISmQqBKim3+yM5Qk+1vo0owe61Acp787Ti90uuSM9yFVsw/rIOzCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:38:19.528209Z"},"content_sha256":"be51e2639f33f79c2bab47ccb6487922ecd7689d3378bcb478ba134ca3ccca0b","schema_version":"1.0","event_id":"sha256:be51e2639f33f79c2bab47ccb6487922ecd7689d3378bcb478ba134ca3ccca0b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/bundle.json","state_url":"https://pith.science/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/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":"2026-06-03T01:38:19Z","links":{"resolver":"https://pith.science/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK","bundle":"https://pith.science/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/bundle.json","state":"https://pith.science/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FBZ2LXIMQRH4GZ4AHURU7X7BK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6FBZ2LXIMQRH4GZ4AHURU7X7BK","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":"89a33e9bdb83efe3d27165ccff3075a4985e7bb1d4d9e0340208b808bd7a34f1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-11T14:58:28Z","title_canon_sha256":"2434c9d5e04551cbb886aa508d403337f8f70d175265afe5cde61c646fa9bde8"},"schema_version":"1.0","source":{"id":"2603.10849","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.10849","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"arxiv_version","alias_value":"2603.10849v2","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.10849","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_12","alias_value":"6FBZ2LXIMQRH","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_16","alias_value":"6FBZ2LXIMQRH4GZ4","created_at":"2026-06-02T03:05:05Z"},{"alias_kind":"pith_short_8","alias_value":"6FBZ2LXI","created_at":"2026-06-02T03:05:05Z"}],"graph_snapshots":[{"event_id":"sha256:be51e2639f33f79c2bab47ccb6487922ecd7689d3378bcb478ba134ca3ccca0b","target":"graph","created_at":"2026-06-02T03:05:05Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2603.10849/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Peanut cluster (SRGe J023820.8+200556, SRGe CL0238.3+2005, $z_{spec}$ = 0.42) has recently emerged as a candidate for a rare, massive merger, potentially analogous to the Bullet cluster. We present the results of optical identification and spectroscopic redshift measurements for 31 galaxies in the Peanut cluster, including 26 new redshifts obtained with the 6-m telescope BTA (Big Telescope Alt-azimuthal) at SAO RAS between October 2024 and January 2025. The derived distribution of line-of-sight velocities reveals the possible presence of two subclusters with a line-of-sight velocity differ","authors_text":"A. Arshinova, A. Moiseev, E. Churazov, I. Bikmaev, I. Khabibullin, I. Khamitov, I. Zaznobin, M. Gilfanov, M. Suslikov, N. Lyskova, R. Burenin, R. Sunyaev, R. Uklein, S. Dodonov, S. Kotov, S. Sazonov","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-11T14:58:28Z","title":"Spectroscopic galaxy redshifts in the Peanut cluster - a massive nearly head-on cluster merger shortly after pericenter passage"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.10849","kind":"arxiv","version":2},"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:a7ef81c9ea5393e3f3c56d7ec7891094b960b67c0cf57861525de95261cf11a5","target":"record","created_at":"2026-06-02T03:05:05Z","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":"89a33e9bdb83efe3d27165ccff3075a4985e7bb1d4d9e0340208b808bd7a34f1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-11T14:58:28Z","title_canon_sha256":"2434c9d5e04551cbb886aa508d403337f8f70d175265afe5cde61c646fa9bde8"},"schema_version":"1.0","source":{"id":"2603.10849","kind":"arxiv","version":2}},"canonical_sha256":"f1439d2ee864227e1b3c01e91a7eff0a9390f74198fe0d4b31eb7e3a989b1c8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f1439d2ee864227e1b3c01e91a7eff0a9390f74198fe0d4b31eb7e3a989b1c8c","first_computed_at":"2026-06-02T03:05:05.164646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-02T03:05:05.164646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b2ssXH/10DZJ9tJOeu0oAcoem8IWbLMKJ6bOi58i2I+QnkxypERlv08hA3XHKMv62ZdK7hMVptD5iAT3s1xNBA==","signature_status":"signed_v1","signed_at":"2026-06-02T03:05:05.165234Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.10849","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7ef81c9ea5393e3f3c56d7ec7891094b960b67c0cf57861525de95261cf11a5","sha256:be51e2639f33f79c2bab47ccb6487922ecd7689d3378bcb478ba134ca3ccca0b"],"state_sha256":"86a556bfad2a4d221f1f249ed65cf70a375970ad2da97bd15a01ac784d4b1e45"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rOc2R1g9dVhpbcWj0VLBW1WNWNVsymcPcSBQ+4+SZeQvhWfFOwM9pDQFxhB3ceiM7Kh5RnLTnZUOwu4g/GDNBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:38:19.530290Z","bundle_sha256":"3858968774aae6a7202060c971e42087f9f6d3076534c29f3809aa96bc03c989"}}