{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:L5VXEGFQU5ZUAOATB3LRMYWTSY","short_pith_number":"pith:L5VXEGFQ","canonical_record":{"source":{"id":"0807.2917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-07-18T08:49:06Z","cross_cats_sorted":[],"title_canon_sha256":"6c54268c577257a3ee4656f3d51d67c72c55a8f8729eae18e3ebd7fc9cd43ea7","abstract_canon_sha256":"4f9c8b90d46582fb0093cd671037163e0a07359edeb494361a914ee9c0fb96c0"},"schema_version":"1.0"},"canonical_sha256":"5f6b7218b0a7734038130ed71662d39612ef11ad9ee1b1ff84127a5b39ea6c33","source":{"kind":"arxiv","id":"0807.2917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.2917","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"arxiv_version","alias_value":"0807.2917v1","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.2917","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"pith_short_12","alias_value":"L5VXEGFQU5ZU","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"L5VXEGFQU5ZUAOAT","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"L5VXEGFQ","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:L5VXEGFQU5ZUAOATB3LRMYWTSY","target":"record","payload":{"canonical_record":{"source":{"id":"0807.2917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-07-18T08:49:06Z","cross_cats_sorted":[],"title_canon_sha256":"6c54268c577257a3ee4656f3d51d67c72c55a8f8729eae18e3ebd7fc9cd43ea7","abstract_canon_sha256":"4f9c8b90d46582fb0093cd671037163e0a07359edeb494361a914ee9c0fb96c0"},"schema_version":"1.0"},"canonical_sha256":"5f6b7218b0a7734038130ed71662d39612ef11ad9ee1b1ff84127a5b39ea6c33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:23.271127Z","signature_b64":"aa6whmU1AtKzzO3XJ1wte3TGcp1F0/0rChs1tbCUGqEs8WNnwvm7/hyTpJItIPtFFMQMNgVSnLWN05FrstA4DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f6b7218b0a7734038130ed71662d39612ef11ad9ee1b1ff84127a5b39ea6c33","last_reissued_at":"2026-05-18T04:16:23.270656Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:23.270656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0807.2917","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":"2026-05-18T04:16:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gRKInmVP2OZ6hmXwX80pvIF3C+woaWkLZk+Yh9HfMAfTTy873iX28HPxr97c44/fSpxhZ38CCjtIZwOlI5y7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:14:24.847440Z"},"content_sha256":"fe8309687746864678e7772cdc32bca7b0ba0bf899b3d281d1037502f3f0a1d6","schema_version":"1.0","event_id":"sha256:fe8309687746864678e7772cdc32bca7b0ba0bf899b3d281d1037502f3f0a1d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:L5VXEGFQU5ZUAOATB3LRMYWTSY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"QCD Vacuum Properties in a Magnetic Field from AdS/CFT: Chiral Condensate and Goldstone Mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"A. V. Zayakin","submitted_at":"2008-07-18T08:49:06Z","abstract_excerpt":"Chiral condensate and $\\eta^\\prime$ meson mass spectrum are studied under the influence of an external Abelian magnetic field. We work within the D3/D7 Karch--Katz model of flavoured AdS/CFT with supersymmetry broken by the Constable--Myers deformation of the metric. It is shown that this setting yields a quadratic dependence of condensate on field, rather than the non-analytic (linear in field) dependence, typical for chiral perturbation theory in the exact chiral limit. We argue that the analytic (quadratic) result must be put into correspondence with the leading-order in the $1/N_c$ decompo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.2917","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":"2026-05-18T04:16:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ry0nZaajA4jqLeWvyGUukP9ovI74hcQoI29CaKv9C9b5va1W5Fg1XUBnXSGj6R4ETT3vyD8DEiy9VvVKbrQtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:14:24.848053Z"},"content_sha256":"7a310a608c4de6cd7cd38b2bcec2307934cdcb3d0db852d1daf2c143437be523","schema_version":"1.0","event_id":"sha256:7a310a608c4de6cd7cd38b2bcec2307934cdcb3d0db852d1daf2c143437be523"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/bundle.json","state_url":"https://pith.science/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/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":"2026-05-26T05:14:24Z","links":{"resolver":"https://pith.science/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY","bundle":"https://pith.science/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/bundle.json","state":"https://pith.science/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L5VXEGFQU5ZUAOATB3LRMYWTSY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:L5VXEGFQU5ZUAOATB3LRMYWTSY","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":"4f9c8b90d46582fb0093cd671037163e0a07359edeb494361a914ee9c0fb96c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-07-18T08:49:06Z","title_canon_sha256":"6c54268c577257a3ee4656f3d51d67c72c55a8f8729eae18e3ebd7fc9cd43ea7"},"schema_version":"1.0","source":{"id":"0807.2917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.2917","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"arxiv_version","alias_value":"0807.2917v1","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.2917","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"pith_short_12","alias_value":"L5VXEGFQU5ZU","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"L5VXEGFQU5ZUAOAT","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"L5VXEGFQ","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:7a310a608c4de6cd7cd38b2bcec2307934cdcb3d0db852d1daf2c143437be523","target":"graph","created_at":"2026-05-18T04:16:23Z","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":"Chiral condensate and $\\eta^\\prime$ meson mass spectrum are studied under the influence of an external Abelian magnetic field. We work within the D3/D7 Karch--Katz model of flavoured AdS/CFT with supersymmetry broken by the Constable--Myers deformation of the metric. It is shown that this setting yields a quadratic dependence of condensate on field, rather than the non-analytic (linear in field) dependence, typical for chiral perturbation theory in the exact chiral limit. We argue that the analytic (quadratic) result must be put into correspondence with the leading-order in the $1/N_c$ decompo","authors_text":"A. V. Zayakin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-07-18T08:49:06Z","title":"QCD Vacuum Properties in a Magnetic Field from AdS/CFT: Chiral Condensate and Goldstone Mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.2917","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:fe8309687746864678e7772cdc32bca7b0ba0bf899b3d281d1037502f3f0a1d6","target":"record","created_at":"2026-05-18T04:16:23Z","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":"4f9c8b90d46582fb0093cd671037163e0a07359edeb494361a914ee9c0fb96c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-07-18T08:49:06Z","title_canon_sha256":"6c54268c577257a3ee4656f3d51d67c72c55a8f8729eae18e3ebd7fc9cd43ea7"},"schema_version":"1.0","source":{"id":"0807.2917","kind":"arxiv","version":1}},"canonical_sha256":"5f6b7218b0a7734038130ed71662d39612ef11ad9ee1b1ff84127a5b39ea6c33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f6b7218b0a7734038130ed71662d39612ef11ad9ee1b1ff84127a5b39ea6c33","first_computed_at":"2026-05-18T04:16:23.270656Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:23.270656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aa6whmU1AtKzzO3XJ1wte3TGcp1F0/0rChs1tbCUGqEs8WNnwvm7/hyTpJItIPtFFMQMNgVSnLWN05FrstA4DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:23.271127Z","signed_message":"canonical_sha256_bytes"},"source_id":"0807.2917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe8309687746864678e7772cdc32bca7b0ba0bf899b3d281d1037502f3f0a1d6","sha256:7a310a608c4de6cd7cd38b2bcec2307934cdcb3d0db852d1daf2c143437be523"],"state_sha256":"78941125ff01630836b1c790c6d9d8f8ca0f896b120658bbfcfdab239f2fe78d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JjQJbEUouuUDuPdZPlubyAU96K/4O/RrVvUozNj4F7VuDntREWmb6w3WB7NhZc8bkbnHZlyuP6rvwrDun8A+Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:14:24.851341Z","bundle_sha256":"4400d6acbd3ee1cccf81960a74d7c071da41debd185e76ceb7e8c5901187b813"}}