{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:ZGUO42ZSG7QMHYEVSDQGGZNPUB","short_pith_number":"pith:ZGUO42ZS","canonical_record":{"source":{"id":"2402.15562","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-02-23T19:03:02Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"044d583f3ee61f13fc02d052f05563b790509879b4c1f02707125b8dc69327ba","abstract_canon_sha256":"d48629ef95c99ddb9bea93444da101ad38f8eea6150a8e79de1cf9fa5a936107"},"schema_version":"1.0"},"canonical_sha256":"c9a8ee6b3237e0c3e09590e06365afa06a03657c480d302307b38d72ad54a7cd","source":{"kind":"arxiv","id":"2402.15562","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.15562","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"arxiv_version","alias_value":"2402.15562v2","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.15562","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_12","alias_value":"ZGUO42ZSG7QM","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZGUO42ZSG7QMHYEV","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZGUO42ZS","created_at":"2026-07-05T08:54:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:ZGUO42ZSG7QMHYEVSDQGGZNPUB","target":"record","payload":{"canonical_record":{"source":{"id":"2402.15562","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-02-23T19:03:02Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"044d583f3ee61f13fc02d052f05563b790509879b4c1f02707125b8dc69327ba","abstract_canon_sha256":"d48629ef95c99ddb9bea93444da101ad38f8eea6150a8e79de1cf9fa5a936107"},"schema_version":"1.0"},"canonical_sha256":"c9a8ee6b3237e0c3e09590e06365afa06a03657c480d302307b38d72ad54a7cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:54:47.681836Z","signature_b64":"aT3iecQtf/UQRhNG8Pec+8DDFcB/Ek4483Q1EEMLDGwX/KHzDoNPbY+guLmYGfaUh8Qh7xsQNA5cFd3ONRucAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9a8ee6b3237e0c3e09590e06365afa06a03657c480d302307b38d72ad54a7cd","last_reissued_at":"2026-07-05T08:54:47.681411Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:54:47.681411Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.15562","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":"2026-07-05T08:54:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ie1OTDex0pBAOH5EJh8GziaXjxn5IpYDBr34hzWSBP2436u6IgIFhFM8Wbd1dMhSZtLYzsbzcfZs6EL+NxJBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T20:40:45.001671Z"},"content_sha256":"b9d4f8baf9fd001c221fc07106f3c0b96e8f9e99b46cff3626ad927526d7c979","schema_version":"1.0","event_id":"sha256:b9d4f8baf9fd001c221fc07106f3c0b96e8f9e99b46cff3626ad927526d7c979"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:ZGUO42ZSG7QMHYEVSDQGGZNPUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-supersymmetric heterotic strings and chiral CFTs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.MP"],"primary_cat":"hep-th","authors_text":"Hector Parra De Freitas","submitted_at":"2024-02-23T19:03:02Z","abstract_excerpt":"Non-supersymmetric heterotic strings share various properties with their supersymmetric counterparts. Torus compactifications of the latter live in a component of the moduli space of string vacua with 16 supercharges, and various asymmetric orbifolds thereof realize vacua in other components, exhibiting qualitative differences such as rank reduction. We set out to study the analogous problem for non-supersymmetric heterotic strings, framing it in relation to chiral fermionic CFTs with central charge 24, which were classified recently. We find that for the case analogous to the so-called CHL st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.15562","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/2402.15562/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":"2026-07-05T08:54:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OKNTBw0GYzrQGrGOT4lertQslu7ehhfsearrNAkAAzz9+L+GyDauDTJ8PutwamdU550OoeZwr/U0Db82uSywDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T20:40:45.002649Z"},"content_sha256":"09efe4f86e2578710e8eba1c8416fbf360119132dac26247792eb4137fed992b","schema_version":"1.0","event_id":"sha256:09efe4f86e2578710e8eba1c8416fbf360119132dac26247792eb4137fed992b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/bundle.json","state_url":"https://pith.science/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/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":"2026-08-14T20:40:45Z","links":{"resolver":"https://pith.science/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB","bundle":"https://pith.science/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/bundle.json","state":"https://pith.science/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZGUO42ZSG7QMHYEVSDQGGZNPUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:ZGUO42ZSG7QMHYEVSDQGGZNPUB","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":"d48629ef95c99ddb9bea93444da101ad38f8eea6150a8e79de1cf9fa5a936107","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-02-23T19:03:02Z","title_canon_sha256":"044d583f3ee61f13fc02d052f05563b790509879b4c1f02707125b8dc69327ba"},"schema_version":"1.0","source":{"id":"2402.15562","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.15562","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"arxiv_version","alias_value":"2402.15562v2","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.15562","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_12","alias_value":"ZGUO42ZSG7QM","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZGUO42ZSG7QMHYEV","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZGUO42ZS","created_at":"2026-07-05T08:54:47Z"}],"graph_snapshots":[{"event_id":"sha256:09efe4f86e2578710e8eba1c8416fbf360119132dac26247792eb4137fed992b","target":"graph","created_at":"2026-07-05T08:54:47Z","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/2402.15562/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Non-supersymmetric heterotic strings share various properties with their supersymmetric counterparts. Torus compactifications of the latter live in a component of the moduli space of string vacua with 16 supercharges, and various asymmetric orbifolds thereof realize vacua in other components, exhibiting qualitative differences such as rank reduction. We set out to study the analogous problem for non-supersymmetric heterotic strings, framing it in relation to chiral fermionic CFTs with central charge 24, which were classified recently. We find that for the case analogous to the so-called CHL st","authors_text":"Hector Parra De Freitas","cross_cats":["math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-02-23T19:03:02Z","title":"Non-supersymmetric heterotic strings and chiral CFTs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.15562","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:b9d4f8baf9fd001c221fc07106f3c0b96e8f9e99b46cff3626ad927526d7c979","target":"record","created_at":"2026-07-05T08:54:47Z","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":"d48629ef95c99ddb9bea93444da101ad38f8eea6150a8e79de1cf9fa5a936107","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-02-23T19:03:02Z","title_canon_sha256":"044d583f3ee61f13fc02d052f05563b790509879b4c1f02707125b8dc69327ba"},"schema_version":"1.0","source":{"id":"2402.15562","kind":"arxiv","version":2}},"canonical_sha256":"c9a8ee6b3237e0c3e09590e06365afa06a03657c480d302307b38d72ad54a7cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9a8ee6b3237e0c3e09590e06365afa06a03657c480d302307b38d72ad54a7cd","first_computed_at":"2026-07-05T08:54:47.681411Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:54:47.681411Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aT3iecQtf/UQRhNG8Pec+8DDFcB/Ek4483Q1EEMLDGwX/KHzDoNPbY+guLmYGfaUh8Qh7xsQNA5cFd3ONRucAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:54:47.681836Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.15562","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9d4f8baf9fd001c221fc07106f3c0b96e8f9e99b46cff3626ad927526d7c979","sha256:09efe4f86e2578710e8eba1c8416fbf360119132dac26247792eb4137fed992b"],"state_sha256":"3e86631eb376524b041747eea595c621209f1995bdc6b3fea2ea8e85ab183760"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BhTCbxDVnBuZgJ4qIrWbYraVZ8MylRpgSgMDRv4AX7E7Y6b/bffTXChWJCGlr2vdvy1QGxsY8XTaoTq5oafeBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T20:40:45.009342Z","bundle_sha256":"a80f26b3839a2f64561d2668af0421739aa5c6c7fc6b95b3e0d603993c3fb97b"}}