{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:UFPUIVV4YYOZIMFQ6EIVMZOXZI","short_pith_number":"pith:UFPUIVV4","canonical_record":{"source":{"id":"0808.2714","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-08-20T09:35:30Z","cross_cats_sorted":["cond-mat.str-el","hep-lat"],"title_canon_sha256":"8848ace6fc77b587169dd3003f502ce64a244b2adf1999a9760171359ac58254","abstract_canon_sha256":"26fbfd14ffd76374e76553efba85de522509e11677ade381dcf1263208f18bce"},"schema_version":"1.0"},"canonical_sha256":"a15f4456bcc61d9430b0f1115665d7ca206c24c61680a6fa109c915a76def088","source":{"kind":"arxiv","id":"0808.2714","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.2714","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"arxiv_version","alias_value":"0808.2714v1","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.2714","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_12","alias_value":"UFPUIVV4YYOZ","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_16","alias_value":"UFPUIVV4YYOZIMFQ","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_8","alias_value":"UFPUIVV4","created_at":"2026-07-04T15:41:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:UFPUIVV4YYOZIMFQ6EIVMZOXZI","target":"record","payload":{"canonical_record":{"source":{"id":"0808.2714","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-08-20T09:35:30Z","cross_cats_sorted":["cond-mat.str-el","hep-lat"],"title_canon_sha256":"8848ace6fc77b587169dd3003f502ce64a244b2adf1999a9760171359ac58254","abstract_canon_sha256":"26fbfd14ffd76374e76553efba85de522509e11677ade381dcf1263208f18bce"},"schema_version":"1.0"},"canonical_sha256":"a15f4456bcc61d9430b0f1115665d7ca206c24c61680a6fa109c915a76def088","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:41:16.340700Z","signature_b64":"ViD2AIhUPAex970u+ZxWHYd4nZ62MOi1q71OfobZMPcJtFRZIGq8Sy/9OfxYmjAJTJilhMYYsm6SksKLnqj3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a15f4456bcc61d9430b0f1115665d7ca206c24c61680a6fa109c915a76def088","last_reissued_at":"2026-07-04T15:41:16.340353Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:41:16.340353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0808.2714","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":"2026-07-04T15:41:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pgcsimQI+Vbs/lb3cj67dt4L12nJiAt/NQNutfsKCuG12AkhRq/2Hy0WwTYCIAnbptDibpi1PcKTLwO6YGXxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:44:33.108677Z"},"content_sha256":"b8e87bb474f71e5f51e18c682d37070441c810538d4b587cf080ac8b5fbcc768","schema_version":"1.0","event_id":"sha256:b8e87bb474f71e5f51e18c682d37070441c810538d4b587cf080ac8b5fbcc768"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:UFPUIVV4YYOZIMFQ6EIVMZOXZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chiral Symmetry breaking in Three Dimensional QED","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-lat"],"primary_cat":"cond-mat.supr-con","authors_text":"Costas Strouthos, John B. Kogut","submitted_at":"2008-08-20T09:35:30Z","abstract_excerpt":"Over the past few years three dimensional Quantum Electrodynamics (QED$_3$) has attracted a lot of attention, because it may be an effective theory for the underdoped and non-superconducting region of the phase diagram of high $T_c$ cuprate compounds. We present results from lattice simulations of the non-compact version of the theory in order to address the issue of whether chiral symmetry is spontaneously broken when the number of fermion flavours $N_f$ is less than a critical value $N_{fc}$. Our results provide strong evidence that QED$_3$ is chirally symmetric for $N_f \\geq 1.5$, implying "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.2714","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/0808.2714/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":"2026-07-04T15:41:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UofcncaDsfC8SC3ORrkOTePIaCQQQA6hvjeSclMvXVR4xP8oRAIIvtiBho8BudYKmjfvVQHmn8s/dgl+Yxi+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:44:33.109054Z"},"content_sha256":"5a8c5fe7f665687c4cf1e1e7aa1bfb6d9afb30d1f0e42491d21e58d7a53d9d69","schema_version":"1.0","event_id":"sha256:5a8c5fe7f665687c4cf1e1e7aa1bfb6d9afb30d1f0e42491d21e58d7a53d9d69"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/bundle.json","state_url":"https://pith.science/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/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":"2026-07-07T09:44:33Z","links":{"resolver":"https://pith.science/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI","bundle":"https://pith.science/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/bundle.json","state":"https://pith.science/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UFPUIVV4YYOZIMFQ6EIVMZOXZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:UFPUIVV4YYOZIMFQ6EIVMZOXZI","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":"26fbfd14ffd76374e76553efba85de522509e11677ade381dcf1263208f18bce","cross_cats_sorted":["cond-mat.str-el","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-08-20T09:35:30Z","title_canon_sha256":"8848ace6fc77b587169dd3003f502ce64a244b2adf1999a9760171359ac58254"},"schema_version":"1.0","source":{"id":"0808.2714","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.2714","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"arxiv_version","alias_value":"0808.2714v1","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.2714","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_12","alias_value":"UFPUIVV4YYOZ","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_16","alias_value":"UFPUIVV4YYOZIMFQ","created_at":"2026-07-04T15:41:16Z"},{"alias_kind":"pith_short_8","alias_value":"UFPUIVV4","created_at":"2026-07-04T15:41:16Z"}],"graph_snapshots":[{"event_id":"sha256:5a8c5fe7f665687c4cf1e1e7aa1bfb6d9afb30d1f0e42491d21e58d7a53d9d69","target":"graph","created_at":"2026-07-04T15:41:16Z","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/0808.2714/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the past few years three dimensional Quantum Electrodynamics (QED$_3$) has attracted a lot of attention, because it may be an effective theory for the underdoped and non-superconducting region of the phase diagram of high $T_c$ cuprate compounds. We present results from lattice simulations of the non-compact version of the theory in order to address the issue of whether chiral symmetry is spontaneously broken when the number of fermion flavours $N_f$ is less than a critical value $N_{fc}$. Our results provide strong evidence that QED$_3$ is chirally symmetric for $N_f \\geq 1.5$, implying ","authors_text":"Costas Strouthos, John B. Kogut","cross_cats":["cond-mat.str-el","hep-lat"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-08-20T09:35:30Z","title":"Chiral Symmetry breaking in Three Dimensional QED"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.2714","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:b8e87bb474f71e5f51e18c682d37070441c810538d4b587cf080ac8b5fbcc768","target":"record","created_at":"2026-07-04T15:41:16Z","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":"26fbfd14ffd76374e76553efba85de522509e11677ade381dcf1263208f18bce","cross_cats_sorted":["cond-mat.str-el","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-08-20T09:35:30Z","title_canon_sha256":"8848ace6fc77b587169dd3003f502ce64a244b2adf1999a9760171359ac58254"},"schema_version":"1.0","source":{"id":"0808.2714","kind":"arxiv","version":1}},"canonical_sha256":"a15f4456bcc61d9430b0f1115665d7ca206c24c61680a6fa109c915a76def088","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a15f4456bcc61d9430b0f1115665d7ca206c24c61680a6fa109c915a76def088","first_computed_at":"2026-07-04T15:41:16.340353Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:41:16.340353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ViD2AIhUPAex970u+ZxWHYd4nZ62MOi1q71OfobZMPcJtFRZIGq8Sy/9OfxYmjAJTJilhMYYsm6SksKLnqj3DQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:41:16.340700Z","signed_message":"canonical_sha256_bytes"},"source_id":"0808.2714","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8e87bb474f71e5f51e18c682d37070441c810538d4b587cf080ac8b5fbcc768","sha256:5a8c5fe7f665687c4cf1e1e7aa1bfb6d9afb30d1f0e42491d21e58d7a53d9d69"],"state_sha256":"9f6b28b7e012cf27be71f0c532035a225466abbbba5478e8b2006fe97ef8c34c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K8m0jk0gB3G0kDHSDfpbXOBMx17zS8m4y/IXhxHXj42qwAutQPlBE0lbeldzvl7kqMbDCPs3pNb2ChSjGjimAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:44:33.111031Z","bundle_sha256":"f1f349c2c0508cce6c0a775742d9efd72155d4aa3d6daae9f4df5bcddf411cc2"}}