{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GTED54ZK5WZOMNJJDMMCBXYD5B","short_pith_number":"pith:GTED54ZK","canonical_record":{"source":{"id":"1708.04227","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2017-08-14T17:44:09Z","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"title_canon_sha256":"837b21189594ab8e02415ea00bf2e06d1f62123c405d9df63e250487f05e5587","abstract_canon_sha256":"38b40caf01cadd87601db54aea4c0a836774cdec47803c80cbdbb830618679b4"},"schema_version":"1.0"},"canonical_sha256":"34c83ef32aedb2e635291b1820df03e8716f09802b15a30a093003f35ea3bd49","source":{"kind":"arxiv","id":"1708.04227","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04227","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04227v1","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04227","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"pith_short_12","alias_value":"GTED54ZK5WZO","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTED54ZK5WZOMNJJ","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTED54ZK","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GTED54ZK5WZOMNJJDMMCBXYD5B","target":"record","payload":{"canonical_record":{"source":{"id":"1708.04227","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2017-08-14T17:44:09Z","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"title_canon_sha256":"837b21189594ab8e02415ea00bf2e06d1f62123c405d9df63e250487f05e5587","abstract_canon_sha256":"38b40caf01cadd87601db54aea4c0a836774cdec47803c80cbdbb830618679b4"},"schema_version":"1.0"},"canonical_sha256":"34c83ef32aedb2e635291b1820df03e8716f09802b15a30a093003f35ea3bd49","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:53.472729Z","signature_b64":"LVFg5cIHePvZ7e1Quf1B3XrJxAYbrLbRpNFahqI07hLUzGIg0Qn1gS5JUhfLAru1tdYxtZtubNC+znlHJl7vBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34c83ef32aedb2e635291b1820df03e8716f09802b15a30a093003f35ea3bd49","last_reissued_at":"2026-05-17T23:45:53.472302Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:53.472302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.04227","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":"2026-05-17T23:45:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OaXy6gw2Wg+F+GDXfvXr24/bK3nWytcML+HgDGZLKy2X9/zLTkCzAQ7CYkDwbNGWblaT66ObYLzq3LIl6C3/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:48:18.501555Z"},"content_sha256":"c35417c0c47849579a3ab601f4c493097c026d6d865542ca098225169f18a4e0","schema_version":"1.0","event_id":"sha256:c35417c0c47849579a3ab601f4c493097c026d6d865542ca098225169f18a4e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GTED54ZK5WZOMNJJDMMCBXYD5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simple conformally recurrent space-times are conformally recurrent PP-waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","math.DG","math.MP"],"primary_cat":"math-ph","authors_text":"Carlo Alberto Mantica, Luca Guido Molinari","submitted_at":"2017-08-14T17:44:09Z","abstract_excerpt":"We show that in dimension n>3 the class of simple conformally recurrent space-times coincides with the class of conformally recurrent pp-waves."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04227","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":"2026-05-17T23:45:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGUKgq2j3nn9rd+xHumYXkCxCBSRJ9iex2KZLvZJrHOvKDJp375Qi4KDjNjshAZvo5OvUk3vb19tlhy11i3XCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:48:18.502216Z"},"content_sha256":"bfec37d3a30b0efacfd1278e2b68f14be7f12d9aaf91ade82522c55ad0a15935","schema_version":"1.0","event_id":"sha256:bfec37d3a30b0efacfd1278e2b68f14be7f12d9aaf91ade82522c55ad0a15935"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/bundle.json","state_url":"https://pith.science/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/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":"2026-05-25T20:48:18Z","links":{"resolver":"https://pith.science/pith/GTED54ZK5WZOMNJJDMMCBXYD5B","bundle":"https://pith.science/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/bundle.json","state":"https://pith.science/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GTED54ZK5WZOMNJJDMMCBXYD5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GTED54ZK5WZOMNJJDMMCBXYD5B","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":"38b40caf01cadd87601db54aea4c0a836774cdec47803c80cbdbb830618679b4","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2017-08-14T17:44:09Z","title_canon_sha256":"837b21189594ab8e02415ea00bf2e06d1f62123c405d9df63e250487f05e5587"},"schema_version":"1.0","source":{"id":"1708.04227","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04227","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04227v1","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04227","created_at":"2026-05-17T23:45:53Z"},{"alias_kind":"pith_short_12","alias_value":"GTED54ZK5WZO","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTED54ZK5WZOMNJJ","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTED54ZK","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:bfec37d3a30b0efacfd1278e2b68f14be7f12d9aaf91ade82522c55ad0a15935","target":"graph","created_at":"2026-05-17T23:45:53Z","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 show that in dimension n>3 the class of simple conformally recurrent space-times coincides with the class of conformally recurrent pp-waves.","authors_text":"Carlo Alberto Mantica, Luca Guido Molinari","cross_cats":["gr-qc","math.DG","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2017-08-14T17:44:09Z","title":"Simple conformally recurrent space-times are conformally recurrent PP-waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04227","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:c35417c0c47849579a3ab601f4c493097c026d6d865542ca098225169f18a4e0","target":"record","created_at":"2026-05-17T23:45:53Z","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":"38b40caf01cadd87601db54aea4c0a836774cdec47803c80cbdbb830618679b4","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2017-08-14T17:44:09Z","title_canon_sha256":"837b21189594ab8e02415ea00bf2e06d1f62123c405d9df63e250487f05e5587"},"schema_version":"1.0","source":{"id":"1708.04227","kind":"arxiv","version":1}},"canonical_sha256":"34c83ef32aedb2e635291b1820df03e8716f09802b15a30a093003f35ea3bd49","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34c83ef32aedb2e635291b1820df03e8716f09802b15a30a093003f35ea3bd49","first_computed_at":"2026-05-17T23:45:53.472302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:53.472302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LVFg5cIHePvZ7e1Quf1B3XrJxAYbrLbRpNFahqI07hLUzGIg0Qn1gS5JUhfLAru1tdYxtZtubNC+znlHJl7vBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:53.472729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.04227","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c35417c0c47849579a3ab601f4c493097c026d6d865542ca098225169f18a4e0","sha256:bfec37d3a30b0efacfd1278e2b68f14be7f12d9aaf91ade82522c55ad0a15935"],"state_sha256":"7203a73b7c65d76f13e13a8156489800eee954935075cf1a6f210c3d8a77046d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zwc0H+Kn1ZnX2ZN95reRftV0ltZsI/AAEeILyciaVx5dA60ia5VVaed4a9HRsAql/KVOz/WaB5tzQnUEC1wBBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:48:18.506436Z","bundle_sha256":"c9e592753924ef61dab2e53f6da8fa092e2058693e82faaba0fa5fb98da96d64"}}