{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1992:4LTAOFNQ5QKAQAOMO7AZ55GN37","short_pith_number":"pith:4LTAOFNQ","canonical_record":{"source":{"id":"hep-ph/9211264","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1992-11-02T11:51:00Z","cross_cats_sorted":[],"title_canon_sha256":"2847c9b78f1af7494bdbc4828d09e8eb92f791a2fa5fa0caf93a57ff0a0cbd88","abstract_canon_sha256":"037ef9fa0a050e8c5f652805b0223f8a5b09bd52b99e983d2a4bd07e706585b3"},"schema_version":"1.0"},"canonical_sha256":"e2e60715b0ec140801cc77c19ef4cddfd938e10ec39a0bbbaca8e854f9c3f15d","source":{"kind":"arxiv","id":"hep-ph/9211264","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9211264","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9211264v1","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9211264","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_12","alias_value":"4LTAOFNQ5QKA","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_16","alias_value":"4LTAOFNQ5QKAQAOM","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_8","alias_value":"4LTAOFNQ","created_at":"2026-07-04T15:55:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1992:4LTAOFNQ5QKAQAOMO7AZ55GN37","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9211264","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1992-11-02T11:51:00Z","cross_cats_sorted":[],"title_canon_sha256":"2847c9b78f1af7494bdbc4828d09e8eb92f791a2fa5fa0caf93a57ff0a0cbd88","abstract_canon_sha256":"037ef9fa0a050e8c5f652805b0223f8a5b09bd52b99e983d2a4bd07e706585b3"},"schema_version":"1.0"},"canonical_sha256":"e2e60715b0ec140801cc77c19ef4cddfd938e10ec39a0bbbaca8e854f9c3f15d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:55:17.551901Z","signature_b64":"Z0Y/lAr5yytLd+cFXFBgPgyf1Yb2BUdj7soATnYqYvlYbeEZawHdbJDJQZP/Sp9yWRt8F9z0IpgQgzEEJY11AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2e60715b0ec140801cc77c19ef4cddfd938e10ec39a0bbbaca8e854f9c3f15d","last_reissued_at":"2026-07-04T15:55:17.551490Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:55:17.551490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9211264","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":"2026-07-04T15:55:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PWY8s5qfaceYZv5L4+68tyqjUc5/G5qsQQ6jBkP01we2p9p1cGAl0YiYZWg10Rg572eoazBNsj9nAyDE8GSQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:15:05.729067Z"},"content_sha256":"1d0f4f53e8c975e2b3f7ad65ddbc6d0ff38da6a82fe25ffedd9d8a432394e399","schema_version":"1.0","event_id":"sha256:1d0f4f53e8c975e2b3f7ad65ddbc6d0ff38da6a82fe25ffedd9d8a432394e399"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1992:4LTAOFNQ5QKAQAOMO7AZ55GN37","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"About the realization of chiral symmetry in QCD2","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Ferrando, V. Vento","submitted_at":"1992-11-02T11:51:00Z","abstract_excerpt":"Two dimensional massless Quantum Chromodynamics presents many features which resemble those of the true theory. In particular the spectrum consists of mesons and baryons arranged in flavor multiplets without parity doubling. We analyze the implications of chiral symmetry, which is not spontaneously broken in two dimensions, in the spectrum and in the quark condensate. We study how parity doubling, an awaited consequence of Coleman's theorem, is avoided due to the dimensionality of space-time and confinement. We prove that a chiral phase transition is not possible in the theory."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9211264","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/9211264/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":"2026-07-04T15:55:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o4EjmIyobEOCkMhFjARRghdldJwoNLOr7JqS2AIZPwCkhP0eDve8d3txWJe5uWflcrcP3jLoLwGlA6YQ3jCWAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:15:05.729601Z"},"content_sha256":"6ea7a0b7d7c3f14efa87bb51a6d2834e46a7537b84e9480bb443d2b8f9d379e7","schema_version":"1.0","event_id":"sha256:6ea7a0b7d7c3f14efa87bb51a6d2834e46a7537b84e9480bb443d2b8f9d379e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/bundle.json","state_url":"https://pith.science/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/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":"2026-08-15T05:15:05Z","links":{"resolver":"https://pith.science/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37","bundle":"https://pith.science/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/bundle.json","state":"https://pith.science/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4LTAOFNQ5QKAQAOMO7AZ55GN37/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1992:4LTAOFNQ5QKAQAOMO7AZ55GN37","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":"037ef9fa0a050e8c5f652805b0223f8a5b09bd52b99e983d2a4bd07e706585b3","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-11-02T11:51:00Z","title_canon_sha256":"2847c9b78f1af7494bdbc4828d09e8eb92f791a2fa5fa0caf93a57ff0a0cbd88"},"schema_version":"1.0","source":{"id":"hep-ph/9211264","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9211264","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9211264v1","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9211264","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_12","alias_value":"4LTAOFNQ5QKA","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_16","alias_value":"4LTAOFNQ5QKAQAOM","created_at":"2026-07-04T15:55:17Z"},{"alias_kind":"pith_short_8","alias_value":"4LTAOFNQ","created_at":"2026-07-04T15:55:17Z"}],"graph_snapshots":[{"event_id":"sha256:6ea7a0b7d7c3f14efa87bb51a6d2834e46a7537b84e9480bb443d2b8f9d379e7","target":"graph","created_at":"2026-07-04T15:55:17Z","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-ph/9211264/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two dimensional massless Quantum Chromodynamics presents many features which resemble those of the true theory. In particular the spectrum consists of mesons and baryons arranged in flavor multiplets without parity doubling. We analyze the implications of chiral symmetry, which is not spontaneously broken in two dimensions, in the spectrum and in the quark condensate. We study how parity doubling, an awaited consequence of Coleman's theorem, is avoided due to the dimensionality of space-time and confinement. We prove that a chiral phase transition is not possible in the theory.","authors_text":"A. Ferrando, V. Vento","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1992-11-02T11:51:00Z","title":"About the realization of chiral symmetry in QCD2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9211264","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":"sha256:1d0f4f53e8c975e2b3f7ad65ddbc6d0ff38da6a82fe25ffedd9d8a432394e399","target":"record","created_at":"2026-07-04T15:55:17Z","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":"037ef9fa0a050e8c5f652805b0223f8a5b09bd52b99e983d2a4bd07e706585b3","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-11-02T11:51:00Z","title_canon_sha256":"2847c9b78f1af7494bdbc4828d09e8eb92f791a2fa5fa0caf93a57ff0a0cbd88"},"schema_version":"1.0","source":{"id":"hep-ph/9211264","kind":"arxiv","version":1}},"canonical_sha256":"e2e60715b0ec140801cc77c19ef4cddfd938e10ec39a0bbbaca8e854f9c3f15d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2e60715b0ec140801cc77c19ef4cddfd938e10ec39a0bbbaca8e854f9c3f15d","first_computed_at":"2026-07-04T15:55:17.551490Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:55:17.551490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z0Y/lAr5yytLd+cFXFBgPgyf1Yb2BUdj7soATnYqYvlYbeEZawHdbJDJQZP/Sp9yWRt8F9z0IpgQgzEEJY11AA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:55:17.551901Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9211264","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d0f4f53e8c975e2b3f7ad65ddbc6d0ff38da6a82fe25ffedd9d8a432394e399","sha256:6ea7a0b7d7c3f14efa87bb51a6d2834e46a7537b84e9480bb443d2b8f9d379e7"],"state_sha256":"7d0e40a9dfb611283e7ba87742d73330f351151e7971ee490ba0dca574a5add8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DQEMwilt29QSxn3L+za8+MkCSazjLONnZSNhnMwB4skguoscc7nWH7Ae7ydV8I+4V3mqrLybpXmOUJjjbdNXAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:15:05.733638Z","bundle_sha256":"cd9fef3653d1d8bb9b466179a0ccf89c68ea545aa7db2d5822158b4ed7fda4bb"}}