{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OXD6ZNEUZZW463HS42JARVXOTU","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":"eb0399fc69b689647f165b2d155a0caec14451a2bee4261c170c163139f0f6da","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-06-02T12:56:33Z","title_canon_sha256":"caa8bd5476ad5b8b1f6f4c194a9d588688b8b350eaa299f90e5fdebee54c2e35"},"schema_version":"1.0","source":{"id":"1606.00654","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.00654","created_at":"2026-05-18T01:04:12Z"},{"alias_kind":"arxiv_version","alias_value":"1606.00654v1","created_at":"2026-05-18T01:04:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.00654","created_at":"2026-05-18T01:04:12Z"},{"alias_kind":"pith_short_12","alias_value":"OXD6ZNEUZZW4","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OXD6ZNEUZZW463HS","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OXD6ZNEU","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:365ce0fb54dc4f89bf4fb35e3eb052b1b84d149dc95c9f37c4bca441bfc70fa2","target":"graph","created_at":"2026-05-18T01:04:12Z","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":"There are five maximally supersymmetric backgrounds in four-dimensional off-shell N=1 supergravity, two of which are well known: Minkowski superspace M^{4|4} and anti-de Sitter superspace AdS^{4|4}. The three remaining supermanifolds support spacetimes of different topology, which are: R x S^3, AdS_3 x R, and a supersymmetric plane wave isometric to the Nappi-Witten group. As is well known, the Minkowski and anti-de Sitter superspaces are solutions of the Poincar\\'e and anti-de Sitter supergravity theories, respectively. Here we demonstrate that the other three superspaces are solutions of no-","authors_text":"Sergei M. Kuzenko","cross_cats":["math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-06-02T12:56:33Z","title":"Maximally supersymmetric solutions of $R^2$ supergravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.00654","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":"sha256:7243909dc38e061fbd3a000be40e77bd9b2f8fd39f397ae7badddf71ad2f6951","target":"record","created_at":"2026-05-18T01:04:12Z","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":"eb0399fc69b689647f165b2d155a0caec14451a2bee4261c170c163139f0f6da","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-06-02T12:56:33Z","title_canon_sha256":"caa8bd5476ad5b8b1f6f4c194a9d588688b8b350eaa299f90e5fdebee54c2e35"},"schema_version":"1.0","source":{"id":"1606.00654","kind":"arxiv","version":1}},"canonical_sha256":"75c7ecb494ce6dcf6cf2e69208d6ee9d0f0a3a10de58be1baedeb9087e9ca165","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75c7ecb494ce6dcf6cf2e69208d6ee9d0f0a3a10de58be1baedeb9087e9ca165","first_computed_at":"2026-05-18T01:04:12.611443Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:12.611443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M+LkVZDIute9GOg4OP08lH6NOz2dhKvEKiFT8vGOclGASoWOLb4VET7MUiS1qobtt9FDjXX+zPLYcvFoGpYsDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:12.611887Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.00654","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7243909dc38e061fbd3a000be40e77bd9b2f8fd39f397ae7badddf71ad2f6951","sha256:365ce0fb54dc4f89bf4fb35e3eb052b1b84d149dc95c9f37c4bca441bfc70fa2"],"state_sha256":"23879ef95ad5a267784526feb9ef4a9c259103181a91ae982f440702c8fe3a78"}