{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2CSWEZL22N5FORBB4EPNZ26NRP","short_pith_number":"pith:2CSWEZL2","canonical_record":{"source":{"id":"1108.1076","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-08-04T12:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"e95a5ba228bb5bfe4f1785a06631a35a1b871c1860857efa9ca3defeb852a970","abstract_canon_sha256":"559f79fc7d874e3a2af1dc690fddcd70865978b4cd88c4f30436bd8ca62bf6f9"},"schema_version":"1.0"},"canonical_sha256":"d0a562657ad37a574421e11edcebcd8bc8713116e4d63f87c83fcb9b972a140b","source":{"kind":"arxiv","id":"1108.1076","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.1076","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"arxiv_version","alias_value":"1108.1076v2","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.1076","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"pith_short_12","alias_value":"2CSWEZL22N5F","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2CSWEZL22N5FORBB","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2CSWEZL2","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2CSWEZL22N5FORBB4EPNZ26NRP","target":"record","payload":{"canonical_record":{"source":{"id":"1108.1076","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-08-04T12:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"e95a5ba228bb5bfe4f1785a06631a35a1b871c1860857efa9ca3defeb852a970","abstract_canon_sha256":"559f79fc7d874e3a2af1dc690fddcd70865978b4cd88c4f30436bd8ca62bf6f9"},"schema_version":"1.0"},"canonical_sha256":"d0a562657ad37a574421e11edcebcd8bc8713116e4d63f87c83fcb9b972a140b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:02.922673Z","signature_b64":"FP81Knq36FC8Be7QT2OyFwpss10Pr510V/wt5gyCi0Gyq4M/csJoOFzero0+izF8vbgAo+RVqrdtThdgwce5CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0a562657ad37a574421e11edcebcd8bc8713116e4d63f87c83fcb9b972a140b","last_reissued_at":"2026-05-18T02:01:02.921936Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:02.921936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.1076","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":"2026-05-18T02:01:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jgZkFbwcf2OqGS0ckfyoeNZMX1YmRr8Q+FQXEbAu5EtBYErVnXzsYZHHZPdfzepDj4qdXvlB6k1T5CrTikGcAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:23:23.880748Z"},"content_sha256":"ac65a777a4e77a700c82b72280d2c72fd442df197883fb7fd99fb5d3e9e6afc4","schema_version":"1.0","event_id":"sha256:ac65a777a4e77a700c82b72280d2c72fd442df197883fb7fd99fb5d3e9e6afc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2CSWEZL22N5FORBB4EPNZ26NRP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precision Study of Excited State Effects in Nucleon Matrix Elements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Constantia Alexandrou, Dru B. Renner, Karl Jansen, Martha Constantinou, Simon Dinter, Vincent Drach","submitted_at":"2011-08-04T12:58:26Z","abstract_excerpt":"We present a dedicated analysis of the influence of excited states on the calculation of nucleon matrix elements. This calculation is performed at a fixed value of the lattice spacing, volume and pion mass that are typical of contemporary lattice computations. We focus on the nucleon axial charge, g_A, for which we use about 7,500 measurements, and on the average momentum of the unpolarized isovector parton distribution, <x>_{u-d}, for which we use about 23,000 measurements. All computations are done employing N_f=2+1+1 maximally-twisted-mass Wilson fermions and using non-perturbatively calcul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.1076","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":"2026-05-18T02:01:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JdqhP6ZaxWI6ZvoGwf1AzPs1n93Rnh0lQ4IMLHK0AnZe0IN1P8oiTvA7lsZOm+FtGoJESxRIsg/zKki091lLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:23:23.881144Z"},"content_sha256":"0cf21de62ccfaefddbd72fef7a0fa8920d981fa0e9c803f92327bb5f7119ff57","schema_version":"1.0","event_id":"sha256:0cf21de62ccfaefddbd72fef7a0fa8920d981fa0e9c803f92327bb5f7119ff57"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2CSWEZL22N5FORBB4EPNZ26NRP/bundle.json","state_url":"https://pith.science/pith/2CSWEZL22N5FORBB4EPNZ26NRP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2CSWEZL22N5FORBB4EPNZ26NRP/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":"2026-05-27T21:23:23Z","links":{"resolver":"https://pith.science/pith/2CSWEZL22N5FORBB4EPNZ26NRP","bundle":"https://pith.science/pith/2CSWEZL22N5FORBB4EPNZ26NRP/bundle.json","state":"https://pith.science/pith/2CSWEZL22N5FORBB4EPNZ26NRP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2CSWEZL22N5FORBB4EPNZ26NRP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2CSWEZL22N5FORBB4EPNZ26NRP","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":"559f79fc7d874e3a2af1dc690fddcd70865978b4cd88c4f30436bd8ca62bf6f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-08-04T12:58:26Z","title_canon_sha256":"e95a5ba228bb5bfe4f1785a06631a35a1b871c1860857efa9ca3defeb852a970"},"schema_version":"1.0","source":{"id":"1108.1076","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.1076","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"arxiv_version","alias_value":"1108.1076v2","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.1076","created_at":"2026-05-18T02:01:02Z"},{"alias_kind":"pith_short_12","alias_value":"2CSWEZL22N5F","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2CSWEZL22N5FORBB","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2CSWEZL2","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:0cf21de62ccfaefddbd72fef7a0fa8920d981fa0e9c803f92327bb5f7119ff57","target":"graph","created_at":"2026-05-18T02:01:02Z","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 present a dedicated analysis of the influence of excited states on the calculation of nucleon matrix elements. This calculation is performed at a fixed value of the lattice spacing, volume and pion mass that are typical of contemporary lattice computations. We focus on the nucleon axial charge, g_A, for which we use about 7,500 measurements, and on the average momentum of the unpolarized isovector parton distribution, <x>_{u-d}, for which we use about 23,000 measurements. All computations are done employing N_f=2+1+1 maximally-twisted-mass Wilson fermions and using non-perturbatively calcul","authors_text":"Constantia Alexandrou, Dru B. Renner, Karl Jansen, Martha Constantinou, Simon Dinter, Vincent Drach","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-08-04T12:58:26Z","title":"Precision Study of Excited State Effects in Nucleon Matrix Elements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.1076","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:ac65a777a4e77a700c82b72280d2c72fd442df197883fb7fd99fb5d3e9e6afc4","target":"record","created_at":"2026-05-18T02:01:02Z","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":"559f79fc7d874e3a2af1dc690fddcd70865978b4cd88c4f30436bd8ca62bf6f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-08-04T12:58:26Z","title_canon_sha256":"e95a5ba228bb5bfe4f1785a06631a35a1b871c1860857efa9ca3defeb852a970"},"schema_version":"1.0","source":{"id":"1108.1076","kind":"arxiv","version":2}},"canonical_sha256":"d0a562657ad37a574421e11edcebcd8bc8713116e4d63f87c83fcb9b972a140b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0a562657ad37a574421e11edcebcd8bc8713116e4d63f87c83fcb9b972a140b","first_computed_at":"2026-05-18T02:01:02.921936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:02.921936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FP81Knq36FC8Be7QT2OyFwpss10Pr510V/wt5gyCi0Gyq4M/csJoOFzero0+izF8vbgAo+RVqrdtThdgwce5CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:02.922673Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.1076","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac65a777a4e77a700c82b72280d2c72fd442df197883fb7fd99fb5d3e9e6afc4","sha256:0cf21de62ccfaefddbd72fef7a0fa8920d981fa0e9c803f92327bb5f7119ff57"],"state_sha256":"99121ceb6df67d672a03ce05a5a003edbf1672a8e0a68192b114114a37722e00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2bgrLxACA2mAbYz5Nlh2cYxHXYFvubWVgrXyZlkfVyIJVtFIAfP0t2/yeyRsdtLHsIGtCho8mJH/swJUgYcwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T21:23:23.883729Z","bundle_sha256":"d1567d19d938c070ecd9787cfe999034945c6a771da49b90f47a6faf59540cb4"}}