{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:VKV6IMNTVWVNG7FOWVNJG7H26E","short_pith_number":"pith:VKV6IMNT","canonical_record":{"source":{"id":"1704.04906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2017-04-17T09:00:22Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"title_canon_sha256":"201ced3597832b4a7cc17fa1c880a195500a4e7ec8c3edb532135e65423a5dd6","abstract_canon_sha256":"464e091b428947303c2cfe47180eea56aa9d4bb3b0015eeb00a99ce8e3a68847"},"schema_version":"1.0"},"canonical_sha256":"aaabe431b3adaad37caeb55a937cfaf10b5ccb6288a2a7c236e9f1c69fa21dc3","source":{"kind":"arxiv","id":"1704.04906","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04906","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04906v2","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04906","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"pith_short_12","alias_value":"VKV6IMNTVWVN","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKV6IMNTVWVNG7FO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKV6IMNT","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:VKV6IMNTVWVNG7FOWVNJG7H26E","target":"record","payload":{"canonical_record":{"source":{"id":"1704.04906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2017-04-17T09:00:22Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"title_canon_sha256":"201ced3597832b4a7cc17fa1c880a195500a4e7ec8c3edb532135e65423a5dd6","abstract_canon_sha256":"464e091b428947303c2cfe47180eea56aa9d4bb3b0015eeb00a99ce8e3a68847"},"schema_version":"1.0"},"canonical_sha256":"aaabe431b3adaad37caeb55a937cfaf10b5ccb6288a2a7c236e9f1c69fa21dc3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:06.235559Z","signature_b64":"sUuxjXFtmQuDgZMXs7SosQhDUOVVkRCs5aill1DdS+cRxTbZdaRNdHwxIFMRN0iDUmSiAS5zmMtkVR8BfcxgCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aaabe431b3adaad37caeb55a937cfaf10b5ccb6288a2a7c236e9f1c69fa21dc3","last_reissued_at":"2026-05-18T00:40:06.234927Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:06.234927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.04906","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":"2026-05-18T00:40:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TdhpCjuaEd0MG4dNdLH6tH8SzQqVpTUkSSybIK+2lFDtUSqCcIDHxX2WPfd9EgvIuNy4CXr40vpd0Bu3Sti7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T09:06:53.478384Z"},"content_sha256":"324cc1ab93e30e46cb5c1be4c68a2f26d86f68bfcc6cc954d7bf25db24605cb3","schema_version":"1.0","event_id":"sha256:324cc1ab93e30e46cb5c1be4c68a2f26d86f68bfcc6cc954d7bf25db24605cb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:VKV6IMNTVWVNG7FOWVNJG7H26E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topology in the SU(N_f) chiral symmetry restored phase of unquenched QCD and axion cosmology II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th","nucl-th"],"primary_cat":"hep-lat","authors_text":"Vicente Azcoiti","submitted_at":"2017-04-17T09:00:22Z","abstract_excerpt":"We investigate the physical consequences of the survival of the effects of the U(1)_A anomaly in the chiral symmetric phase of QCD, and show that the free energy density is a singular function of the quark mass m, in the chiral limit, and that the $\\sigma$ and $\\bar\\pi$ susceptibilities diverge in this limit at any $T\\ge T_c$. We also show that the difference between the $\\bar\\pi$ and $\\bar\\delta$ susceptibilities diverges in the chiral limit at any $T\\ge T_c$, a result which seems to be excluded by recent results of Tomiya et al. from numerical simulations of two-flavor QCD. We also discuss o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04906","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":"2026-05-18T00:40:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZzIFxHSa7DR4SIaANKscTqlgohiOcZjBwP8r7CM8NwtvwVJN4RzmPupqXKp2iX9YCqxFfl4niw8M5tCn4tIDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T09:06:53.478741Z"},"content_sha256":"9b39d7cde3dfb4a45a80835a241d8f62dc085fa9acc295c28b2a619bd5ef42e6","schema_version":"1.0","event_id":"sha256:9b39d7cde3dfb4a45a80835a241d8f62dc085fa9acc295c28b2a619bd5ef42e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/bundle.json","state_url":"https://pith.science/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/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":"2026-06-11T09:06:53Z","links":{"resolver":"https://pith.science/pith/VKV6IMNTVWVNG7FOWVNJG7H26E","bundle":"https://pith.science/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/bundle.json","state":"https://pith.science/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKV6IMNTVWVNG7FOWVNJG7H26E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VKV6IMNTVWVNG7FOWVNJG7H26E","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":"464e091b428947303c2cfe47180eea56aa9d4bb3b0015eeb00a99ce8e3a68847","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2017-04-17T09:00:22Z","title_canon_sha256":"201ced3597832b4a7cc17fa1c880a195500a4e7ec8c3edb532135e65423a5dd6"},"schema_version":"1.0","source":{"id":"1704.04906","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04906","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04906v2","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04906","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"pith_short_12","alias_value":"VKV6IMNTVWVN","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKV6IMNTVWVNG7FO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKV6IMNT","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:9b39d7cde3dfb4a45a80835a241d8f62dc085fa9acc295c28b2a619bd5ef42e6","target":"graph","created_at":"2026-05-18T00:40:06Z","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 investigate the physical consequences of the survival of the effects of the U(1)_A anomaly in the chiral symmetric phase of QCD, and show that the free energy density is a singular function of the quark mass m, in the chiral limit, and that the $\\sigma$ and $\\bar\\pi$ susceptibilities diverge in this limit at any $T\\ge T_c$. We also show that the difference between the $\\bar\\pi$ and $\\bar\\delta$ susceptibilities diverges in the chiral limit at any $T\\ge T_c$, a result which seems to be excluded by recent results of Tomiya et al. from numerical simulations of two-flavor QCD. We also discuss o","authors_text":"Vicente Azcoiti","cross_cats":["hep-ph","hep-th","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2017-04-17T09:00:22Z","title":"Topology in the SU(N_f) chiral symmetry restored phase of unquenched QCD and axion cosmology II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04906","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":"sha256:324cc1ab93e30e46cb5c1be4c68a2f26d86f68bfcc6cc954d7bf25db24605cb3","target":"record","created_at":"2026-05-18T00:40:06Z","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":"464e091b428947303c2cfe47180eea56aa9d4bb3b0015eeb00a99ce8e3a68847","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2017-04-17T09:00:22Z","title_canon_sha256":"201ced3597832b4a7cc17fa1c880a195500a4e7ec8c3edb532135e65423a5dd6"},"schema_version":"1.0","source":{"id":"1704.04906","kind":"arxiv","version":2}},"canonical_sha256":"aaabe431b3adaad37caeb55a937cfaf10b5ccb6288a2a7c236e9f1c69fa21dc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aaabe431b3adaad37caeb55a937cfaf10b5ccb6288a2a7c236e9f1c69fa21dc3","first_computed_at":"2026-05-18T00:40:06.234927Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:06.234927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sUuxjXFtmQuDgZMXs7SosQhDUOVVkRCs5aill1DdS+cRxTbZdaRNdHwxIFMRN0iDUmSiAS5zmMtkVR8BfcxgCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:06.235559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.04906","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:324cc1ab93e30e46cb5c1be4c68a2f26d86f68bfcc6cc954d7bf25db24605cb3","sha256:9b39d7cde3dfb4a45a80835a241d8f62dc085fa9acc295c28b2a619bd5ef42e6"],"state_sha256":"fcb4101893cba8a5af1096397e524b8b79a5a9cc1d9dd6c303fa934cc438fbe1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ojEj+MYtjRr51ke1yB5U9tvivgItOU0pZ829Ot8dx5dy7S+q+hSr0dbPn8aPD9f76Xt1i1qda2ej7mnSE6DkBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T09:06:53.480743Z","bundle_sha256":"b87a2d1ffb7be19b8f3851f46562d3f7041a08e678362234662d7e26279c0085"}}