{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RSVAPO55Y32KXO63YJT6RO77PM","short_pith_number":"pith:RSVAPO55","canonical_record":{"source":{"id":"1804.10286","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-04-26T21:38:39Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"80ecabbd358f33779e76ef735123616ab563ff464d77a01dfe51a3a94c3eccf6","abstract_canon_sha256":"4c2fb5acad1ca5fbc95262f8cf3ee5e303b7bd5ac1ec88bab7693c0a5b144437"},"schema_version":"1.0"},"canonical_sha256":"8caa07bbbdc6f4abbbdbc267e8bbff7b15949b07f21b5a870377932b09d66bab","source":{"kind":"arxiv","id":"1804.10286","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10286","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10286v1","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10286","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"pith_short_12","alias_value":"RSVAPO55Y32K","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RSVAPO55Y32KXO63","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RSVAPO55","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RSVAPO55Y32KXO63YJT6RO77PM","target":"record","payload":{"canonical_record":{"source":{"id":"1804.10286","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-04-26T21:38:39Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"80ecabbd358f33779e76ef735123616ab563ff464d77a01dfe51a3a94c3eccf6","abstract_canon_sha256":"4c2fb5acad1ca5fbc95262f8cf3ee5e303b7bd5ac1ec88bab7693c0a5b144437"},"schema_version":"1.0"},"canonical_sha256":"8caa07bbbdc6f4abbbdbc267e8bbff7b15949b07f21b5a870377932b09d66bab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:23.278042Z","signature_b64":"XrqElhcsu9kJALDsau/JZygqQZZveUSOu/Sz5lxIkJBcXGF35xgYRClzmS6uPr53y6bSsukApjfveVjDqE/oDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8caa07bbbdc6f4abbbdbc267e8bbff7b15949b07f21b5a870377932b09d66bab","last_reissued_at":"2026-05-18T00:11:23.277569Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:23.277569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.10286","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":"2026-05-18T00:11:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4D6KBNsY2hjvZ2fq1fb8UdLCNyQ9fFKJSSieHvYD1gxnsqO0DY9y6Lrl+snTyp8c3KE3wCohURn4Xz5O482IBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T18:07:20.226545Z"},"content_sha256":"fd9401c1fb256bac026cae1524bbecd7facbf573d0b5db0724731e96008b7902","schema_version":"1.0","event_id":"sha256:fd9401c1fb256bac026cae1524bbecd7facbf573d0b5db0724731e96008b7902"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RSVAPO55Y32KXO63YJT6RO77PM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\alpha_s$ from the Lattice Hadronic Vacuum Polarisation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Eigo Shintani, Kim Maltman, Randy Lewis, Renwick J. Hudspith","submitted_at":"2018-04-26T21:38:39Z","abstract_excerpt":"We present a determination of the QCD coupling constant, $\\alpha_s$, obtained by fitting lattice results for the flavour $ud$ hadronic vacuum polarisation function to continuum perturbation theory. We use $n_f=2+1$ flavours of Domain Wall fermions generated by the RBC/UKQCD collaboration and three lattice spacings $a^{-1}=1.79,\\, 2.38$ and $3.15\\ \\text{GeV}$. Several sources of potential systematic error are identified and dealt with. After fitting and removing expected leading cut-off effects, we find for the five-flavour $\\overline{\\text{MS}}$ coupling the value $\\alpha_s(M_Z)=0.1181(27)^{+8"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10286","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":"2026-05-18T00:11:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CNu2HZkRh7/RDF9lUOF0vDZAqVto8B8viDALnLXSR+9CTXkOo8W29FxPd7+DKMn32mxEi549j6uPH6ReJWxLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T18:07:20.227224Z"},"content_sha256":"0f7c67450627ec5327f1555ce7b87587b69446668ff4ac83d2ca0fdc2e7eefb3","schema_version":"1.0","event_id":"sha256:0f7c67450627ec5327f1555ce7b87587b69446668ff4ac83d2ca0fdc2e7eefb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RSVAPO55Y32KXO63YJT6RO77PM/bundle.json","state_url":"https://pith.science/pith/RSVAPO55Y32KXO63YJT6RO77PM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RSVAPO55Y32KXO63YJT6RO77PM/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":"2026-05-18T18:07:20Z","links":{"resolver":"https://pith.science/pith/RSVAPO55Y32KXO63YJT6RO77PM","bundle":"https://pith.science/pith/RSVAPO55Y32KXO63YJT6RO77PM/bundle.json","state":"https://pith.science/pith/RSVAPO55Y32KXO63YJT6RO77PM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RSVAPO55Y32KXO63YJT6RO77PM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RSVAPO55Y32KXO63YJT6RO77PM","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":"4c2fb5acad1ca5fbc95262f8cf3ee5e303b7bd5ac1ec88bab7693c0a5b144437","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-04-26T21:38:39Z","title_canon_sha256":"80ecabbd358f33779e76ef735123616ab563ff464d77a01dfe51a3a94c3eccf6"},"schema_version":"1.0","source":{"id":"1804.10286","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10286","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10286v1","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10286","created_at":"2026-05-18T00:11:23Z"},{"alias_kind":"pith_short_12","alias_value":"RSVAPO55Y32K","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RSVAPO55Y32KXO63","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RSVAPO55","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:0f7c67450627ec5327f1555ce7b87587b69446668ff4ac83d2ca0fdc2e7eefb3","target":"graph","created_at":"2026-05-18T00:11:23Z","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 determination of the QCD coupling constant, $\\alpha_s$, obtained by fitting lattice results for the flavour $ud$ hadronic vacuum polarisation function to continuum perturbation theory. We use $n_f=2+1$ flavours of Domain Wall fermions generated by the RBC/UKQCD collaboration and three lattice spacings $a^{-1}=1.79,\\, 2.38$ and $3.15\\ \\text{GeV}$. Several sources of potential systematic error are identified and dealt with. After fitting and removing expected leading cut-off effects, we find for the five-flavour $\\overline{\\text{MS}}$ coupling the value $\\alpha_s(M_Z)=0.1181(27)^{+8","authors_text":"Eigo Shintani, Kim Maltman, Randy Lewis, Renwick J. Hudspith","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-04-26T21:38:39Z","title":"$\\alpha_s$ from the Lattice Hadronic Vacuum Polarisation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10286","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:fd9401c1fb256bac026cae1524bbecd7facbf573d0b5db0724731e96008b7902","target":"record","created_at":"2026-05-18T00:11:23Z","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":"4c2fb5acad1ca5fbc95262f8cf3ee5e303b7bd5ac1ec88bab7693c0a5b144437","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2018-04-26T21:38:39Z","title_canon_sha256":"80ecabbd358f33779e76ef735123616ab563ff464d77a01dfe51a3a94c3eccf6"},"schema_version":"1.0","source":{"id":"1804.10286","kind":"arxiv","version":1}},"canonical_sha256":"8caa07bbbdc6f4abbbdbc267e8bbff7b15949b07f21b5a870377932b09d66bab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8caa07bbbdc6f4abbbdbc267e8bbff7b15949b07f21b5a870377932b09d66bab","first_computed_at":"2026-05-18T00:11:23.277569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:23.277569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XrqElhcsu9kJALDsau/JZygqQZZveUSOu/Sz5lxIkJBcXGF35xgYRClzmS6uPr53y6bSsukApjfveVjDqE/oDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:23.278042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.10286","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd9401c1fb256bac026cae1524bbecd7facbf573d0b5db0724731e96008b7902","sha256:0f7c67450627ec5327f1555ce7b87587b69446668ff4ac83d2ca0fdc2e7eefb3"],"state_sha256":"330f4aee8815b36d546c77b631ba1bca2b029d4054b40ff1bb996a81ba6edd1e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kdpHBzaEsCNhIq2iRreKNdilQBuf8w+A+4NzaY0N5/PHRs/qomD7nmO1O/0xENx6qeGjZuBHch1P/854BNNXDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T18:07:20.228775Z","bundle_sha256":"671982b407fa4f4d3cd14903e61dc266e0383a0bc9151846cebcef9ec1dd69a1"}}