{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:SMJQQFWXU6BNTSATZNGV3NJIHQ","short_pith_number":"pith:SMJQQFWX","canonical_record":{"source":{"id":"hep-lat/0201004","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2002-01-04T00:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"abf5a662fa6ba1eb0efbd75b4d313fc9eef34bf1b31acf10fab777aa729cdca4","abstract_canon_sha256":"9ee9fe0df196e5fb6d3cafe5fa2cb39a5fcc1f0cae2461382c6c3a1f7dbf6ff7"},"schema_version":"1.0"},"canonical_sha256":"93130816d7a782d9c813cb4d5db5283c24aeafbdce400acec4109ad8ff64a0a2","source":{"kind":"arxiv","id":"hep-lat/0201004","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/0201004","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/0201004v1","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/0201004","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"SMJQQFWXU6BN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"SMJQQFWXU6BNTSAT","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"SMJQQFWX","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:SMJQQFWXU6BNTSATZNGV3NJIHQ","target":"record","payload":{"canonical_record":{"source":{"id":"hep-lat/0201004","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2002-01-04T00:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"abf5a662fa6ba1eb0efbd75b4d313fc9eef34bf1b31acf10fab777aa729cdca4","abstract_canon_sha256":"9ee9fe0df196e5fb6d3cafe5fa2cb39a5fcc1f0cae2461382c6c3a1f7dbf6ff7"},"schema_version":"1.0"},"canonical_sha256":"93130816d7a782d9c813cb4d5db5283c24aeafbdce400acec4109ad8ff64a0a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:57.862720Z","signature_b64":"HgsM0XsKREcLoekh80QuR4u7ifMWHcm8yQ2Yw8pbWSMN80GYVbGRaM//0lmNdQrtfUohmw/aV4ROS2HaoQvZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93130816d7a782d9c813cb4d5db5283c24aeafbdce400acec4109ad8ff64a0a2","last_reissued_at":"2026-05-18T00:36:57.862265Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:57.862265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-lat/0201004","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":"2026-05-18T00:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ftdHUAbM+rRnIUiBPTvQ+e+YGWSbtkxk0Xw/Xbv4ioMU0pFgVoXK7odVCqOu5vwiNkRZhet/qUPhR9edxqJsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:09:02.878401Z"},"content_sha256":"5cb03f12421ae73b7b9c8636848ca83f0e6ff7574166b359dc8b24aabe5801a4","schema_version":"1.0","event_id":"sha256:5cb03f12421ae73b7b9c8636848ca83f0e6ff7574166b359dc8b24aabe5801a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:SMJQQFWXU6BNTSATZNGV3NJIHQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Novel fat-link fermion actions","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"A.G.Williams, D.B.Leinweber, F.D.R.Bonnet, F.X.Lee, J.B.Zhang, J.M.Zanotti, P.D.Coddington, S.Bilson-Thompson, W.Melnitchouk","submitted_at":"2002-01-04T00:25:49Z","abstract_excerpt":"The hadron mass spectrum is calculated in lattice QCD using a novel fat-link clover fermion action in which only the irrelevant operators of the fermion action are constructed using smeared links. The simulations are performed on a 16^3 X 32 lattice with a lattice spacing of a=0.125 fm. We compare actions with n=4 and 12 smearing sweeps with a smearing fraction of 0.7. The n=4 Fat Link Irrelevant Clover (FLIC) action provides scaling which is superior to mean-field improvement, and offers advantages over nonperturbative O(a) improvement."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0201004","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":"2026-05-18T00:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k9Bziydxf1CnhrHLdDr25BQeR90nFlH/DJjeE41LIpXAo2b60Po/n9yZRN+PATx1Tydxrv19xUeA/gnP60iXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:09:02.878848Z"},"content_sha256":"9292cccc07fa39c3b2bdd89fdff0ef1d98874fd727b59df619cd97ebca6e1813","schema_version":"1.0","event_id":"sha256:9292cccc07fa39c3b2bdd89fdff0ef1d98874fd727b59df619cd97ebca6e1813"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/bundle.json","state_url":"https://pith.science/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/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":"2026-05-27T07:09:02Z","links":{"resolver":"https://pith.science/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ","bundle":"https://pith.science/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/bundle.json","state":"https://pith.science/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SMJQQFWXU6BNTSATZNGV3NJIHQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:SMJQQFWXU6BNTSATZNGV3NJIHQ","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":"9ee9fe0df196e5fb6d3cafe5fa2cb39a5fcc1f0cae2461382c6c3a1f7dbf6ff7","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"2002-01-04T00:25:49Z","title_canon_sha256":"abf5a662fa6ba1eb0efbd75b4d313fc9eef34bf1b31acf10fab777aa729cdca4"},"schema_version":"1.0","source":{"id":"hep-lat/0201004","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-lat/0201004","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"hep-lat/0201004v1","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-lat/0201004","created_at":"2026-05-18T00:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"SMJQQFWXU6BN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"SMJQQFWXU6BNTSAT","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"SMJQQFWX","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:9292cccc07fa39c3b2bdd89fdff0ef1d98874fd727b59df619cd97ebca6e1813","target":"graph","created_at":"2026-05-18T00:36:57Z","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 hadron mass spectrum is calculated in lattice QCD using a novel fat-link clover fermion action in which only the irrelevant operators of the fermion action are constructed using smeared links. The simulations are performed on a 16^3 X 32 lattice with a lattice spacing of a=0.125 fm. We compare actions with n=4 and 12 smearing sweeps with a smearing fraction of 0.7. The n=4 Fat Link Irrelevant Clover (FLIC) action provides scaling which is superior to mean-field improvement, and offers advantages over nonperturbative O(a) improvement.","authors_text":"A.G.Williams, D.B.Leinweber, F.D.R.Bonnet, F.X.Lee, J.B.Zhang, J.M.Zanotti, P.D.Coddington, S.Bilson-Thompson, W.Melnitchouk","cross_cats":[],"headline":"","license":"","primary_cat":"hep-lat","submitted_at":"2002-01-04T00:25:49Z","title":"Novel fat-link fermion actions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0201004","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":"sha256:5cb03f12421ae73b7b9c8636848ca83f0e6ff7574166b359dc8b24aabe5801a4","target":"record","created_at":"2026-05-18T00:36:57Z","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":"9ee9fe0df196e5fb6d3cafe5fa2cb39a5fcc1f0cae2461382c6c3a1f7dbf6ff7","cross_cats_sorted":[],"license":"","primary_cat":"hep-lat","submitted_at":"2002-01-04T00:25:49Z","title_canon_sha256":"abf5a662fa6ba1eb0efbd75b4d313fc9eef34bf1b31acf10fab777aa729cdca4"},"schema_version":"1.0","source":{"id":"hep-lat/0201004","kind":"arxiv","version":1}},"canonical_sha256":"93130816d7a782d9c813cb4d5db5283c24aeafbdce400acec4109ad8ff64a0a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93130816d7a782d9c813cb4d5db5283c24aeafbdce400acec4109ad8ff64a0a2","first_computed_at":"2026-05-18T00:36:57.862265Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:57.862265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HgsM0XsKREcLoekh80QuR4u7ifMWHcm8yQ2Yw8pbWSMN80GYVbGRaM//0lmNdQrtfUohmw/aV4ROS2HaoQvZBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:57.862720Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-lat/0201004","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5cb03f12421ae73b7b9c8636848ca83f0e6ff7574166b359dc8b24aabe5801a4","sha256:9292cccc07fa39c3b2bdd89fdff0ef1d98874fd727b59df619cd97ebca6e1813"],"state_sha256":"b4509b36c45a6c7c7c61270c2e989151882fb9771c72b933129d241a231a5c06"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pbmeVoc7G45mab7wtoqcu509Im2EBRPzfAIBekVCc5vmF9oETBO62qxnvRF7fmw2icyt8FdtATotwQOniqJsAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:09:02.881754Z","bundle_sha256":"2c470e7cbb237611e38787636b3e9f0144f3e901b8b58167dcfdfd6464b82117"}}