{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1996:AYXVN2ILJ2DIK3MUK5LRQ7N4SW","short_pith_number":"pith:AYXVN2IL","canonical_record":{"source":{"id":"hep-lat/9609035","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"1996-09-19T08:47:23Z","cross_cats_sorted":[],"title_canon_sha256":"e6f5b7a9fbbe14911c2a79b22d835db66ac98fb9b9cd5eba6bde2b9d6f84f42e","abstract_canon_sha256":"e98ec757aa7cbea5b683ba68002be4b549f301e182b6b9bd4da878519dbf2d43"},"schema_version":"1.0"},"canonical_sha256":"062f56e90b4e86856d945757187dbc95afc06c90b08207b63f4110ed65e55d50","source":{"kind":"arxiv","id":"hep-lat/9609035","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/9609035","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/9609035v2","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/9609035","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"pith_short_12","alias_value":"AYXVN2ILJ2DI","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"AYXVN2ILJ2DIK3MU","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"AYXVN2IL","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1996:AYXVN2ILJ2DIK3MUK5LRQ7N4SW","target":"record","payload":{"canonical_record":{"source":{"id":"hep-lat/9609035","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"1996-09-19T08:47:23Z","cross_cats_sorted":[],"title_canon_sha256":"e6f5b7a9fbbe14911c2a79b22d835db66ac98fb9b9cd5eba6bde2b9d6f84f42e","abstract_canon_sha256":"e98ec757aa7cbea5b683ba68002be4b549f301e182b6b9bd4da878519dbf2d43"},"schema_version":"1.0"},"canonical_sha256":"062f56e90b4e86856d945757187dbc95afc06c90b08207b63f4110ed65e55d50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:38.201029Z","signature_b64":"UT0huXEjCfq1MSfgFkKYcgyJPL4NYHM0zC34tFjruxBzfV/fEq0ox4eZNhiJf7w6fJX7KpvvXGl5KB6Tf0dSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"062f56e90b4e86856d945757187dbc95afc06c90b08207b63f4110ed65e55d50","last_reissued_at":"2026-05-18T01:06:38.200405Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:38.200405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-lat/9609035","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":"2026-05-18T01:06:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t1R23ewDXfrN4+Pms9H7iQaFk73G6JXBbKZVZtPliv2fp69rmwOfdNlC2slq8XSvbCLUU/f6mTHWLH3oPSkDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T14:49:36.368743Z"},"content_sha256":"78f41c7c93d9f90701f85542cf7d440ce005e92e67421aa16740036713755a4b","schema_version":"1.0","event_id":"sha256:78f41c7c93d9f90701f85542cf7d440ce005e92e67421aa16740036713755a4b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1996:AYXVN2ILJ2DIK3MUK5LRQ7N4SW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-perturbative O(a) improvement of lattice QCD","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Martin Luescher, Peter Weisz, Rainer Sommer, Stefan Sint, Ulli Wolff","submitted_at":"1996-09-19T08:47:23Z","abstract_excerpt":"The coefficients multiplying the counterterms required for O($a$) improvement of the action and the isovector axial current in lattice QCD are computed non-perturbatively, in the quenched approximation and for bare gauge couplings $g_0$ in the range $0 \\leq g_0 \\leq 1$. A finite-size method based on the Schr\\\"odinger functional is employed, which enables us to perform all calculations at zero or nearly zero quark mass. As a by-product the critical hopping parameter $\\kappa_c$ is obtained at all couplings considered."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/9609035","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":"2026-05-18T01:06:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CtomdEJU0P3lanhbtrvPPdxwjIzCietFyxIaDl5tDiqUci7GTIpoMJA9qaMjao8wKgwpvAzINH8k8wmGOUIeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T14:49:36.369118Z"},"content_sha256":"7d9f959fffa0aca704b76ca12a1cfcc18252d757ed336e14aa5e0384110352aa","schema_version":"1.0","event_id":"sha256:7d9f959fffa0aca704b76ca12a1cfcc18252d757ed336e14aa5e0384110352aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/bundle.json","state_url":"https://pith.science/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/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":"2026-05-19T14:49:36Z","links":{"resolver":"https://pith.science/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW","bundle":"https://pith.science/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/bundle.json","state":"https://pith.science/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AYXVN2ILJ2DIK3MUK5LRQ7N4SW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:AYXVN2ILJ2DIK3MUK5LRQ7N4SW","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":"e98ec757aa7cbea5b683ba68002be4b549f301e182b6b9bd4da878519dbf2d43","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"1996-09-19T08:47:23Z","title_canon_sha256":"e6f5b7a9fbbe14911c2a79b22d835db66ac98fb9b9cd5eba6bde2b9d6f84f42e"},"schema_version":"1.0","source":{"id":"hep-lat/9609035","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/9609035","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/9609035v2","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/9609035","created_at":"2026-05-18T01:06:38Z"},{"alias_kind":"pith_short_12","alias_value":"AYXVN2ILJ2DI","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"AYXVN2ILJ2DIK3MU","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"AYXVN2IL","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:7d9f959fffa0aca704b76ca12a1cfcc18252d757ed336e14aa5e0384110352aa","target":"graph","created_at":"2026-05-18T01:06:38Z","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":"The coefficients multiplying the counterterms required for O($a$) improvement of the action and the isovector axial current in lattice QCD are computed non-perturbatively, in the quenched approximation and for bare gauge couplings $g_0$ in the range $0 \\leq g_0 \\leq 1$. A finite-size method based on the Schr\\\"odinger functional is employed, which enables us to perform all calculations at zero or nearly zero quark mass. As a by-product the critical hopping parameter $\\kappa_c$ is obtained at all couplings considered.","authors_text":"Martin Luescher, Peter Weisz, Rainer Sommer, Stefan Sint, Ulli Wolff","cross_cats":[],"headline":"","license":"","primary_cat":"hep-lat","submitted_at":"1996-09-19T08:47:23Z","title":"Non-perturbative O(a) improvement of lattice QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/9609035","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":"sha256:78f41c7c93d9f90701f85542cf7d440ce005e92e67421aa16740036713755a4b","target":"record","created_at":"2026-05-18T01:06:38Z","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":"e98ec757aa7cbea5b683ba68002be4b549f301e182b6b9bd4da878519dbf2d43","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"1996-09-19T08:47:23Z","title_canon_sha256":"e6f5b7a9fbbe14911c2a79b22d835db66ac98fb9b9cd5eba6bde2b9d6f84f42e"},"schema_version":"1.0","source":{"id":"hep-lat/9609035","kind":"arxiv","version":2}},"canonical_sha256":"062f56e90b4e86856d945757187dbc95afc06c90b08207b63f4110ed65e55d50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"062f56e90b4e86856d945757187dbc95afc06c90b08207b63f4110ed65e55d50","first_computed_at":"2026-05-18T01:06:38.200405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:38.200405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UT0huXEjCfq1MSfgFkKYcgyJPL4NYHM0zC34tFjruxBzfV/fEq0ox4eZNhiJf7w6fJX7KpvvXGl5KB6Tf0dSBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:38.201029Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-lat/9609035","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78f41c7c93d9f90701f85542cf7d440ce005e92e67421aa16740036713755a4b","sha256:7d9f959fffa0aca704b76ca12a1cfcc18252d757ed336e14aa5e0384110352aa"],"state_sha256":"48ef367dd5ebe3f61e6424f73029806d4c400422fde15972cdb91947534998d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+e9lOwLe3otgqJXZ769sbYp6MevHLKY8pbaWJyANgR/3dgy/WhND1g3qRtNBcXwI7KL4o7b0bVtGrztSq+LtDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T14:49:36.374651Z","bundle_sha256":"fb29308e1d35049524213267cf7305abc4b2c6709ae38a34d7f7e9f6d7bde6a0"}}