{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:I34Y6Q5A4PS6HQW2PB5LUTW2GO","short_pith_number":"pith:I34Y6Q5A","canonical_record":{"source":{"id":"hep-lat/0208045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2002-08-23T18:12:36Z","cross_cats_sorted":[],"title_canon_sha256":"7c65f8c686c430f6d4230456a57202ae4d313ab9f1d1fd5ab91e9407646b6bf8","abstract_canon_sha256":"6d1c58d2c8a938c5567e94872cf2f9b85da51a570513be2bfe9cde7938e9585b"},"schema_version":"1.0"},"canonical_sha256":"46f98f43a0e3e5e3c2da787aba4eda339f8516ab4e3e6b038c9bfd085b481d71","source":{"kind":"arxiv","id":"hep-lat/0208045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/0208045","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/0208045v1","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/0208045","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_12","alias_value":"I34Y6Q5A4PS6","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"I34Y6Q5A4PS6HQW2","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"I34Y6Q5A","created_at":"2026-07-04T15:26:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:I34Y6Q5A4PS6HQW2PB5LUTW2GO","target":"record","payload":{"canonical_record":{"source":{"id":"hep-lat/0208045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2002-08-23T18:12:36Z","cross_cats_sorted":[],"title_canon_sha256":"7c65f8c686c430f6d4230456a57202ae4d313ab9f1d1fd5ab91e9407646b6bf8","abstract_canon_sha256":"6d1c58d2c8a938c5567e94872cf2f9b85da51a570513be2bfe9cde7938e9585b"},"schema_version":"1.0"},"canonical_sha256":"46f98f43a0e3e5e3c2da787aba4eda339f8516ab4e3e6b038c9bfd085b481d71","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:26:37.884030Z","signature_b64":"PAH9hm2fT7OoV4nEbNKqaEvxWm6EipLesJ2icgNeN1H3ixTyPjWCoE4dNsC12ganCG9GuylP+twDC8ZnIc/PDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46f98f43a0e3e5e3c2da787aba4eda339f8516ab4e3e6b038c9bfd085b481d71","last_reissued_at":"2026-07-04T15:26:37.883647Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:26:37.883647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-lat/0208045","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":"2026-07-04T15:26:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Snc16g3/S0kGPF8ZbaeA/FGFRRv3mFZJATB8OQTK2cbrw3aOKS59FjiYlLtoAcN8RnnLkBkBmXh7OV9Ncna3Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:18:08.091344Z"},"content_sha256":"2874ef5bf0a2c6518a047aed6a6f97c701e50c8fa40bb9b93984184483bca8c2","schema_version":"1.0","event_id":"sha256:2874ef5bf0a2c6518a047aed6a6f97c701e50c8fa40bb9b93984184483bca8c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:I34Y6Q5A4PS6HQW2PB5LUTW2GO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quenched Chiral Log and Light Quark Mass from Overlap Fermions","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Frank Lee, Ivan Horvath, Jianbo Zhang, Keh-Fei Liu, Nilmani Mathur, Shao-Jing Dong, Terrence Draper","submitted_at":"2002-08-23T18:12:36Z","abstract_excerpt":"We study the quenched chiral behavior of the pion with mass as low as $\\approx 180$ MeV. The calculation is done on a quenched lattice of size $16^3\\times 28$ and $a = 0.2$ fm with 80 configurations using overlap fermions and an improved gauge action. Using an improved constrained curve fitting technique, we find that the ground state pseudoscalar mass versus bare quark mass behavior is well controlled with small statistical errors; this permits a reliable fit of the quenched chiral log effects, a determination of the chiral log parameter ($\\delta = 0.26(3)$), and an estimate of the renormaliz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0208045","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-lat/0208045/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":"2026-07-04T15:26:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Ws6SYPbCoYsleTRwugpFsFIFlXqMq4Vid4KDK2hoI09OIj1Dn/BtXITVg24LeKq9dFO/WA/H7+pTqrJSAQEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:18:08.091833Z"},"content_sha256":"04d9ea60b50f4fe984a1245a68d925c2e537a3722277314157b7f90a3e185bfe","schema_version":"1.0","event_id":"sha256:04d9ea60b50f4fe984a1245a68d925c2e537a3722277314157b7f90a3e185bfe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/bundle.json","state_url":"https://pith.science/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/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":"2026-08-05T15:18:08Z","links":{"resolver":"https://pith.science/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO","bundle":"https://pith.science/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/bundle.json","state":"https://pith.science/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I34Y6Q5A4PS6HQW2PB5LUTW2GO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:I34Y6Q5A4PS6HQW2PB5LUTW2GO","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":"6d1c58d2c8a938c5567e94872cf2f9b85da51a570513be2bfe9cde7938e9585b","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"2002-08-23T18:12:36Z","title_canon_sha256":"7c65f8c686c430f6d4230456a57202ae4d313ab9f1d1fd5ab91e9407646b6bf8"},"schema_version":"1.0","source":{"id":"hep-lat/0208045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/0208045","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/0208045v1","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/0208045","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_12","alias_value":"I34Y6Q5A4PS6","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"I34Y6Q5A4PS6HQW2","created_at":"2026-07-04T15:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"I34Y6Q5A","created_at":"2026-07-04T15:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:04d9ea60b50f4fe984a1245a68d925c2e537a3722277314157b7f90a3e185bfe","target":"graph","created_at":"2026-07-04T15:26:37Z","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-lat/0208045/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the quenched chiral behavior of the pion with mass as low as $\\approx 180$ MeV. The calculation is done on a quenched lattice of size $16^3\\times 28$ and $a = 0.2$ fm with 80 configurations using overlap fermions and an improved gauge action. Using an improved constrained curve fitting technique, we find that the ground state pseudoscalar mass versus bare quark mass behavior is well controlled with small statistical errors; this permits a reliable fit of the quenched chiral log effects, a determination of the chiral log parameter ($\\delta = 0.26(3)$), and an estimate of the renormaliz","authors_text":"Frank Lee, Ivan Horvath, Jianbo Zhang, Keh-Fei Liu, Nilmani Mathur, Shao-Jing Dong, Terrence Draper","cross_cats":[],"headline":"","license":"","primary_cat":"hep-lat","submitted_at":"2002-08-23T18:12:36Z","title":"Quenched Chiral Log and Light Quark Mass from Overlap Fermions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0208045","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":"sha256:2874ef5bf0a2c6518a047aed6a6f97c701e50c8fa40bb9b93984184483bca8c2","target":"record","created_at":"2026-07-04T15:26:37Z","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":"6d1c58d2c8a938c5567e94872cf2f9b85da51a570513be2bfe9cde7938e9585b","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"2002-08-23T18:12:36Z","title_canon_sha256":"7c65f8c686c430f6d4230456a57202ae4d313ab9f1d1fd5ab91e9407646b6bf8"},"schema_version":"1.0","source":{"id":"hep-lat/0208045","kind":"arxiv","version":1}},"canonical_sha256":"46f98f43a0e3e5e3c2da787aba4eda339f8516ab4e3e6b038c9bfd085b481d71","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46f98f43a0e3e5e3c2da787aba4eda339f8516ab4e3e6b038c9bfd085b481d71","first_computed_at":"2026-07-04T15:26:37.883647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:26:37.883647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PAH9hm2fT7OoV4nEbNKqaEvxWm6EipLesJ2icgNeN1H3ixTyPjWCoE4dNsC12ganCG9GuylP+twDC8ZnIc/PDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:26:37.884030Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-lat/0208045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2874ef5bf0a2c6518a047aed6a6f97c701e50c8fa40bb9b93984184483bca8c2","sha256:04d9ea60b50f4fe984a1245a68d925c2e537a3722277314157b7f90a3e185bfe"],"state_sha256":"b9cef81b8a54d12e49c317305fea0c719753c5640c48e7fed2e67f70ae4b57b8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KS6hbx8+NkqbfjrZiw2+1zNWjwoi3V9ZoJG7wmYEVnG+JGAPvRIovUaYRa5f7fkCbmcj+lGzXMyUHrh6Iac8Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:18:08.095535Z","bundle_sha256":"81d00f12775a8ea7dbfa3e9001aff3b2592a6973c2c766678266688ee3f9d55b"}}