{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:6WULYUNBDPICNEXCEUTW3HH6MM","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":"ba694de61c20a5003427afb60e2e4703dbf9878e061ee54ddfd50b51ac4f0ecc","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1999-04-15T12:26:21Z","title_canon_sha256":"007231aa2458e4c38553c5934bbd32709338bc218ee63fac331f00e0c5b271aa"},"schema_version":"1.0","source":{"id":"hep-th/9904109","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9904109","created_at":"2026-07-04T16:14:49Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9904109v1","created_at":"2026-07-04T16:14:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9904109","created_at":"2026-07-04T16:14:49Z"},{"alias_kind":"pith_short_12","alias_value":"6WULYUNBDPIC","created_at":"2026-07-04T16:14:49Z"},{"alias_kind":"pith_short_16","alias_value":"6WULYUNBDPICNEXC","created_at":"2026-07-04T16:14:49Z"},{"alias_kind":"pith_short_8","alias_value":"6WULYUNB","created_at":"2026-07-04T16:14:49Z"}],"graph_snapshots":[{"event_id":"sha256:7e9889007617703bf4d244727473cdf32633fab0f8fab5a15f6a29c6d42622c6","target":"graph","created_at":"2026-07-04T16:14:49Z","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/hep-th/9904109/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A generalization of the Ferber-Shirafuji formulation of superparticle mechanics is considered. The generalized model describes the dynamics of a superparticle in a superspace extended by tensorial central charge coordinates and commuting twistor-like spinor variables. The D=4 model contains a continuous real parameter $a\\geq 0$ and at a=0 reduces to the SU(2,2|1) supertwistor Ferber-Shirafuji model, while at a=1 one gets an OSp(1|8) supertwistor model of ref. [1] (hep-th/9811022) which describes BPS states with all but one unbroken target space supersymmetries. When 0<a<1 the model admits an O","authors_text":"Dmitri Sorokin, Igor Bandos, Jerzy Lukierski","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"1999-04-15T12:26:21Z","title":"Superparticle Models with Tensorial Central Charges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9904109","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:b54943cc3f95264c09ec410145c0071a6e65654c49cd0ed42ca8448b52fe27fb","target":"record","created_at":"2026-07-04T16:14:49Z","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":"ba694de61c20a5003427afb60e2e4703dbf9878e061ee54ddfd50b51ac4f0ecc","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1999-04-15T12:26:21Z","title_canon_sha256":"007231aa2458e4c38553c5934bbd32709338bc218ee63fac331f00e0c5b271aa"},"schema_version":"1.0","source":{"id":"hep-th/9904109","kind":"arxiv","version":1}},"canonical_sha256":"f5a8bc51a11bd02692e225276d9cfe63206e5520291e32a3ae7a589c3ba2747b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5a8bc51a11bd02692e225276d9cfe63206e5520291e32a3ae7a589c3ba2747b","first_computed_at":"2026-07-04T16:14:49.088795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:14:49.088795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y/MrvAGkl8VASJKheBOkZ1kqSakfAIgGulmSkUI7TGT89kNXPFwHeQND6Q42k496BW/xIwY1cA3z+e+W/dCyCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:14:49.089212Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/9904109","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b54943cc3f95264c09ec410145c0071a6e65654c49cd0ed42ca8448b52fe27fb","sha256:7e9889007617703bf4d244727473cdf32633fab0f8fab5a15f6a29c6d42622c6"],"state_sha256":"ff9de9364477a30c8b033e583626e03c284923da89138c6679144dd430742a1f"}