{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:42PN5L7QHA5B7GMDAKKFOD5VYA","short_pith_number":"pith:42PN5L7Q","canonical_record":{"source":{"id":"1712.00074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T20:51:43Z","cross_cats_sorted":[],"title_canon_sha256":"461be883cdf8dd70bca67bcdc6df5f68f6cebc43a3012e0e512cc31db46f0bf3","abstract_canon_sha256":"377ac900db41e672ad8b92aa642e7d47a8dfe5ed5652907cd014696c76529cee"},"schema_version":"1.0"},"canonical_sha256":"e69edeaff0383a1f99830294570fb5c03ab65ae5b5236bfe40a44ecd3485d59d","source":{"kind":"arxiv","id":"1712.00074","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.00074","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"1712.00074v1","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.00074","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"42PN5L7QHA5B","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"42PN5L7QHA5B7GMD","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"42PN5L7Q","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:42PN5L7QHA5B7GMDAKKFOD5VYA","target":"record","payload":{"canonical_record":{"source":{"id":"1712.00074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T20:51:43Z","cross_cats_sorted":[],"title_canon_sha256":"461be883cdf8dd70bca67bcdc6df5f68f6cebc43a3012e0e512cc31db46f0bf3","abstract_canon_sha256":"377ac900db41e672ad8b92aa642e7d47a8dfe5ed5652907cd014696c76529cee"},"schema_version":"1.0"},"canonical_sha256":"e69edeaff0383a1f99830294570fb5c03ab65ae5b5236bfe40a44ecd3485d59d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:07.463239Z","signature_b64":"4O22f+0ny9jMF8bj7bUqnHnNBbYlT8JoLbjxtCeX/zOZcXERhf7Ix43UXGEnuUu9snonfk4zxbS1Ji2hcKw9DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e69edeaff0383a1f99830294570fb5c03ab65ae5b5236bfe40a44ecd3485d59d","last_reissued_at":"2026-05-18T00:29:07.462493Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:07.462493Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.00074","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":"2026-05-18T00:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TWgcw6o8VYEe/6U9zL69ijhenMIZpgVcCpx1A6c1PA4QcUwftfyVsk+oY5NA0e6vlItCk74csmb3XJoKc2xkCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T16:43:35.080083Z"},"content_sha256":"01470117ba6b6a32229ccff1645bffc270c7d5c55630a3f9e4504ea47c934952","schema_version":"1.0","event_id":"sha256:01470117ba6b6a32229ccff1645bffc270c7d5c55630a3f9e4504ea47c934952"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:42PN5L7QHA5B7GMDAKKFOD5VYA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recent advances on chiral partners and patterns","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Andrea Vioque-Rodr\\'iguez, Angel G\\'omez Nicola, Jacobo Ruiz de Elvira, Silvia Ferreres-Sol\\'e","submitted_at":"2017-11-30T20:51:43Z","abstract_excerpt":"We review recent results on chiral $SU(2)_L\\times SU(2)_R\\approx O(4)$ and $U(1)_A$ symmetry restoration in QCD. In particular, we discuss how Ward Identities allow one to derive general results on partner degeneration, which shed light on the distinction between the $O(4)$ and $O(4)\\times U(1)_A$ patterns of the chiral transition. For that purpose, susceptibilities associated with the $O(4)$ and $U(1)_A$ symmetries are studied. From this analysis we conclude that in the ideal regime of exact $O(4)$ restoration (formally achieved in the limit of two massless flavours), $U(1)_A$ partners degene"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.00074","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":""},"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":"2026-05-18T00:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ej0KonKzNd3NF8kO6OKfaoPo0AOM+PWVJsSaB/LEErhXm1MB7BOvPQdUPOAKNWWRkqiDbhqR52a9KSJZzzdGAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T16:43:35.080443Z"},"content_sha256":"127731af4c5172c47a82fe66899acf791a722bd4976be7586cff66b45e96035a","schema_version":"1.0","event_id":"sha256:127731af4c5172c47a82fe66899acf791a722bd4976be7586cff66b45e96035a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/bundle.json","state_url":"https://pith.science/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/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":"2026-06-05T16:43:35Z","links":{"resolver":"https://pith.science/pith/42PN5L7QHA5B7GMDAKKFOD5VYA","bundle":"https://pith.science/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/bundle.json","state":"https://pith.science/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/42PN5L7QHA5B7GMDAKKFOD5VYA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:42PN5L7QHA5B7GMDAKKFOD5VYA","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":"377ac900db41e672ad8b92aa642e7d47a8dfe5ed5652907cd014696c76529cee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T20:51:43Z","title_canon_sha256":"461be883cdf8dd70bca67bcdc6df5f68f6cebc43a3012e0e512cc31db46f0bf3"},"schema_version":"1.0","source":{"id":"1712.00074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.00074","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"1712.00074v1","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.00074","created_at":"2026-05-18T00:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"42PN5L7QHA5B","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"42PN5L7QHA5B7GMD","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"42PN5L7Q","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:127731af4c5172c47a82fe66899acf791a722bd4976be7586cff66b45e96035a","target":"graph","created_at":"2026-05-18T00:29:07Z","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":"We review recent results on chiral $SU(2)_L\\times SU(2)_R\\approx O(4)$ and $U(1)_A$ symmetry restoration in QCD. In particular, we discuss how Ward Identities allow one to derive general results on partner degeneration, which shed light on the distinction between the $O(4)$ and $O(4)\\times U(1)_A$ patterns of the chiral transition. For that purpose, susceptibilities associated with the $O(4)$ and $U(1)_A$ symmetries are studied. From this analysis we conclude that in the ideal regime of exact $O(4)$ restoration (formally achieved in the limit of two massless flavours), $U(1)_A$ partners degene","authors_text":"Andrea Vioque-Rodr\\'iguez, Angel G\\'omez Nicola, Jacobo Ruiz de Elvira, Silvia Ferreres-Sol\\'e","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T20:51:43Z","title":"Recent advances on chiral partners and patterns"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.00074","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":"sha256:01470117ba6b6a32229ccff1645bffc270c7d5c55630a3f9e4504ea47c934952","target":"record","created_at":"2026-05-18T00:29:07Z","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":"377ac900db41e672ad8b92aa642e7d47a8dfe5ed5652907cd014696c76529cee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T20:51:43Z","title_canon_sha256":"461be883cdf8dd70bca67bcdc6df5f68f6cebc43a3012e0e512cc31db46f0bf3"},"schema_version":"1.0","source":{"id":"1712.00074","kind":"arxiv","version":1}},"canonical_sha256":"e69edeaff0383a1f99830294570fb5c03ab65ae5b5236bfe40a44ecd3485d59d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e69edeaff0383a1f99830294570fb5c03ab65ae5b5236bfe40a44ecd3485d59d","first_computed_at":"2026-05-18T00:29:07.462493Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:07.462493Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4O22f+0ny9jMF8bj7bUqnHnNBbYlT8JoLbjxtCeX/zOZcXERhf7Ix43UXGEnuUu9snonfk4zxbS1Ji2hcKw9DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:07.463239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.00074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01470117ba6b6a32229ccff1645bffc270c7d5c55630a3f9e4504ea47c934952","sha256:127731af4c5172c47a82fe66899acf791a722bd4976be7586cff66b45e96035a"],"state_sha256":"89e8fa9a25aae5ca3fdb309fcdf9eb48c7ae9fb332ccceaa953edbb9bbbe984f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jq+FnRdjloqCIjBTL8/ji9+V5BEHUoTgZ01lDQetZS4lLQvdko9xu9KYdv+bnNIqLLIazlt98UtY9cPnujQ9Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T16:43:35.082437Z","bundle_sha256":"72fbda92e9955bf2aa4c9db405c9aeb50e3034712d97ff97e538b97bf5b5d06a"}}