{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:KKYTDLXGFZV4ZTYAJIEEFNRQKD","short_pith_number":"pith:KKYTDLXG","canonical_record":{"source":{"id":"1404.6492","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-04-25T18:10:42Z","cross_cats_sorted":[],"title_canon_sha256":"cf10f851d337981bc737b347a782dfcf8816ba487c70cedc9cd01720053a27a9","abstract_canon_sha256":"4c813dd66b43882af13c390ced93507c07b700ff753b58b67538586699b427ce"},"schema_version":"1.0"},"canonical_sha256":"52b131aee62e6bcccf004a0842b63050eb41797d6b001a716d4fff8242b3ff4b","source":{"kind":"arxiv","id":"1404.6492","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6492","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6492v2","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6492","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"pith_short_12","alias_value":"KKYTDLXGFZV4","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KKYTDLXGFZV4ZTYA","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KKYTDLXG","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:KKYTDLXGFZV4ZTYAJIEEFNRQKD","target":"record","payload":{"canonical_record":{"source":{"id":"1404.6492","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-04-25T18:10:42Z","cross_cats_sorted":[],"title_canon_sha256":"cf10f851d337981bc737b347a782dfcf8816ba487c70cedc9cd01720053a27a9","abstract_canon_sha256":"4c813dd66b43882af13c390ced93507c07b700ff753b58b67538586699b427ce"},"schema_version":"1.0"},"canonical_sha256":"52b131aee62e6bcccf004a0842b63050eb41797d6b001a716d4fff8242b3ff4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:45:39.389006Z","signature_b64":"m9vMv1z16ZZU8uAXnwZEiXSXnFulA0GI9qJZZVxix7dIS/jEmALXugBGqQ0X/YggOUNzEUiJaxMgK02jf12lBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52b131aee62e6bcccf004a0842b63050eb41797d6b001a716d4fff8242b3ff4b","last_reissued_at":"2026-05-18T02:45:39.388436Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:45:39.388436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.6492","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":"2026-05-18T02:45:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MPyKP7jt5JpYEKi5IpODJfvNVdYexW4GZTsYUFDii97H91K0vGwngXGupM2E6uydteOM/NV3tgd/6agcUkgSDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:18:33.900327Z"},"content_sha256":"f46549342580394a2c2ebea3e033b3a74e556bf20194d943a4dc72d94f588e91","schema_version":"1.0","event_id":"sha256:f46549342580394a2c2ebea3e033b3a74e556bf20194d943a4dc72d94f588e91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:KKYTDLXGFZV4ZTYAJIEEFNRQKD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement and nonclassical properties of hypergraph states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"B. Kraus, C. Macchiavello, D. Bru\\ss, F.E.S. Steinhoff, M. Cuquet, M. Rossi, O. G\\\"uhne, T. Moroder","submitted_at":"2014-04-25T18:10:42Z","abstract_excerpt":"Hypergraph states are multi-qubit states that form a subset of the locally maximally entangleable states and a generalization of the well--established notion of graph states. Mathematically, they can conveniently be described by a hypergraph that indicates a possible generation procedure of these states; alternatively, they can also be phrased in terms of a non-local stabilizer formalism. In this paper, we explore the entanglement properties and nonclassical features of hypergraph states. First, we identify the equivalence classes under local unitary transformations for up to four qubits, as w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6492","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":""},"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":"2026-05-18T02:45:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zSrheJ+ibGHlOeM0pff1nw02Y93B31wXkmr2f8p1ofPwYIVbrYOWKCf8U0JDGdtu2QDJA72LmrKmAf6pHBvyDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:18:33.901081Z"},"content_sha256":"4740630e4bfab7965ac93d4d5c5649fb2a81f4e730d4137e24b512d65d77407e","schema_version":"1.0","event_id":"sha256:4740630e4bfab7965ac93d4d5c5649fb2a81f4e730d4137e24b512d65d77407e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/bundle.json","state_url":"https://pith.science/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/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":"2026-05-30T17:18:33Z","links":{"resolver":"https://pith.science/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD","bundle":"https://pith.science/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/bundle.json","state":"https://pith.science/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KKYTDLXGFZV4ZTYAJIEEFNRQKD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KKYTDLXGFZV4ZTYAJIEEFNRQKD","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":"4c813dd66b43882af13c390ced93507c07b700ff753b58b67538586699b427ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-04-25T18:10:42Z","title_canon_sha256":"cf10f851d337981bc737b347a782dfcf8816ba487c70cedc9cd01720053a27a9"},"schema_version":"1.0","source":{"id":"1404.6492","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6492","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6492v2","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6492","created_at":"2026-05-18T02:45:39Z"},{"alias_kind":"pith_short_12","alias_value":"KKYTDLXGFZV4","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KKYTDLXGFZV4ZTYA","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KKYTDLXG","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:4740630e4bfab7965ac93d4d5c5649fb2a81f4e730d4137e24b512d65d77407e","target":"graph","created_at":"2026-05-18T02:45:39Z","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":"Hypergraph states are multi-qubit states that form a subset of the locally maximally entangleable states and a generalization of the well--established notion of graph states. Mathematically, they can conveniently be described by a hypergraph that indicates a possible generation procedure of these states; alternatively, they can also be phrased in terms of a non-local stabilizer formalism. In this paper, we explore the entanglement properties and nonclassical features of hypergraph states. First, we identify the equivalence classes under local unitary transformations for up to four qubits, as w","authors_text":"B. Kraus, C. Macchiavello, D. Bru\\ss, F.E.S. Steinhoff, M. Cuquet, M. Rossi, O. G\\\"uhne, T. Moroder","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-04-25T18:10:42Z","title":"Entanglement and nonclassical properties of hypergraph states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6492","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:f46549342580394a2c2ebea3e033b3a74e556bf20194d943a4dc72d94f588e91","target":"record","created_at":"2026-05-18T02:45:39Z","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":"4c813dd66b43882af13c390ced93507c07b700ff753b58b67538586699b427ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-04-25T18:10:42Z","title_canon_sha256":"cf10f851d337981bc737b347a782dfcf8816ba487c70cedc9cd01720053a27a9"},"schema_version":"1.0","source":{"id":"1404.6492","kind":"arxiv","version":2}},"canonical_sha256":"52b131aee62e6bcccf004a0842b63050eb41797d6b001a716d4fff8242b3ff4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52b131aee62e6bcccf004a0842b63050eb41797d6b001a716d4fff8242b3ff4b","first_computed_at":"2026-05-18T02:45:39.388436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:39.388436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m9vMv1z16ZZU8uAXnwZEiXSXnFulA0GI9qJZZVxix7dIS/jEmALXugBGqQ0X/YggOUNzEUiJaxMgK02jf12lBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:39.389006Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6492","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f46549342580394a2c2ebea3e033b3a74e556bf20194d943a4dc72d94f588e91","sha256:4740630e4bfab7965ac93d4d5c5649fb2a81f4e730d4137e24b512d65d77407e"],"state_sha256":"94817a1090ba448fa804a92ed3416b7fccfcf5b139eefd1bfc51bab58705125c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YYEfOFrJt3h1ZaAhzqGwAK16dJQkg+WiCstjTjzUP8QJVXxEgWSbdOIeHZMCk8IXYgzNgsraIYwMRB4AWvX5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:18:33.904702Z","bundle_sha256":"73afcf6388410fcb7a101beb58dfcaf914a6f4cc8406100100adf11cdfe49c69"}}