{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:VBCWEDZOULRKC4V5TVFJQ4ABMV","short_pith_number":"pith:VBCWEDZO","canonical_record":{"source":{"id":"1907.01435","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-07-02T15:20:40Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"4d7d05f766b09a91cae8e08b389533781c44c8c592ab35adc4e8d1db01e6f435","abstract_canon_sha256":"6d95a29c6f9ce9ef882ae2a7730728c7c14593df38e8e37924d000c557776d04"},"schema_version":"1.0"},"canonical_sha256":"a845620f2ea2e2a172bd9d4a987001657f907ce349b307e0e9a2ed4b3757fd8a","source":{"kind":"arxiv","id":"1907.01435","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01435","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01435v1","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01435","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"pith_short_12","alias_value":"VBCWEDZOULRK","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VBCWEDZOULRKC4V5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VBCWEDZO","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:VBCWEDZOULRKC4V5TVFJQ4ABMV","target":"record","payload":{"canonical_record":{"source":{"id":"1907.01435","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-07-02T15:20:40Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"4d7d05f766b09a91cae8e08b389533781c44c8c592ab35adc4e8d1db01e6f435","abstract_canon_sha256":"6d95a29c6f9ce9ef882ae2a7730728c7c14593df38e8e37924d000c557776d04"},"schema_version":"1.0"},"canonical_sha256":"a845620f2ea2e2a172bd9d4a987001657f907ce349b307e0e9a2ed4b3757fd8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:40.402566Z","signature_b64":"w4S10gRxSftZEzbq6P/PD9edaM05dIP+qCc5UjsuCT/AfntSdXuhoYYc0hC7kj38ZvqSK/j+8ASunBM3B4rjCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a845620f2ea2e2a172bd9d4a987001657f907ce349b307e0e9a2ed4b3757fd8a","last_reissued_at":"2026-05-17T23:41:40.402061Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:40.402061Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.01435","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":"2026-05-17T23:41:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ilD0SaBkybr2KDOrFoIECHbH43WUWpIw8vH1596TbbCHQPfnet7xuFjg9VvzLyfB/DuTuaGe8wqnfik2IM8DBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:44:14.464820Z"},"content_sha256":"f9cb0147b6c945984593db856d7684d7477f19c3ac5e7d47575aa27d7408549a","schema_version":"1.0","event_id":"sha256:f9cb0147b6c945984593db856d7684d7477f19c3ac5e7d47575aa27d7408549a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:VBCWEDZOULRKC4V5TVFJQ4ABMV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\alpha_s$(2019): Precision measurements of the QCD coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A. Banfi, A. Bazavov, A. Kardos, A. Keshavarzi, A. Poldaru, A. Vairo, A. Verbytskyi, David d'Enterria, D. Boito, D. Britzger, D. d'Enterria, D. Nomura, F. Barreiro, F. Ringer, G. Somogyi, G. Zanderighi, H. Takaura, J. Bl\\\"umlein, J. Huston, J.H. Weber, J. K\\\"uhn, J. Pires, J. Soto, K. G. Chetyrkin, K. Maltman, K. Rabbertz, M. Dalla Brida, M. Golterman, M. Jamin, N. Brambilla, P. A. Baikov, P. F. Monni, P. Petreczky, R. Horsley, R. Miravitllas, R. P\\'erez-Ramos, R. Sommer, S. Alekhin, S. Bethke, S. Camarda, S. J. Brodsky, S. Kluth, S.-O. Moch, S. Peris, S. Sint, Stefan Kluth (eds.), T. Onogi, T. Teubner, X. Garcia i Tormo, X. Weichen, Z. Sz\\H{o}r, Z. Tr\\'ocs\\'anyi, Z. Tulip\\'ant","submitted_at":"2019-07-02T15:20:40Z","abstract_excerpt":"This document collects a written summary of all contributions presented at the workshop \"$\\alpha_s$(2019): Precision measurements of the strong coupling\" held at ECT* (Trento) in Feb. 11--15, 2019. The workshop explored in depth the latest developments on the determination of the QCD coupling $\\alpha_s$ from the key categories where high precision measurements are available: (i) lattice QCD, (ii) hadronic $\\tau$ decays, (iii) deep-inelastic scattering and parton distribution functions, (iv) event shapes, jet cross sections, and other hadronic final-states in $e^+e^-$ collisions, (v) Z boson an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01435","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":"2026-05-17T23:41:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IFhZW9dqvPjancj8Ppz+Z7Hfuj+FY1Mbx/TwLZL6WFdGgYntd2nPAMO8DPVZdo8zgEqG7bFM86uWT/sWPMkpCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:44:14.465533Z"},"content_sha256":"42fa816501b21910e05c88d9c8dc8232071d11ed7fe718bb67bfd4e2b3b9eefa","schema_version":"1.0","event_id":"sha256:42fa816501b21910e05c88d9c8dc8232071d11ed7fe718bb67bfd4e2b3b9eefa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/bundle.json","state_url":"https://pith.science/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/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":"2026-05-26T04:44:14Z","links":{"resolver":"https://pith.science/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV","bundle":"https://pith.science/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/bundle.json","state":"https://pith.science/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VBCWEDZOULRKC4V5TVFJQ4ABMV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VBCWEDZOULRKC4V5TVFJQ4ABMV","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":"6d95a29c6f9ce9ef882ae2a7730728c7c14593df38e8e37924d000c557776d04","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-07-02T15:20:40Z","title_canon_sha256":"4d7d05f766b09a91cae8e08b389533781c44c8c592ab35adc4e8d1db01e6f435"},"schema_version":"1.0","source":{"id":"1907.01435","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01435","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01435v1","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01435","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"pith_short_12","alias_value":"VBCWEDZOULRK","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VBCWEDZOULRKC4V5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VBCWEDZO","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:42fa816501b21910e05c88d9c8dc8232071d11ed7fe718bb67bfd4e2b3b9eefa","target":"graph","created_at":"2026-05-17T23:41:40Z","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":"This document collects a written summary of all contributions presented at the workshop \"$\\alpha_s$(2019): Precision measurements of the strong coupling\" held at ECT* (Trento) in Feb. 11--15, 2019. The workshop explored in depth the latest developments on the determination of the QCD coupling $\\alpha_s$ from the key categories where high precision measurements are available: (i) lattice QCD, (ii) hadronic $\\tau$ decays, (iii) deep-inelastic scattering and parton distribution functions, (iv) event shapes, jet cross sections, and other hadronic final-states in $e^+e^-$ collisions, (v) Z boson an","authors_text":"A. Banfi, A. Bazavov, A. Kardos, A. Keshavarzi, A. Poldaru, A. Vairo, A. Verbytskyi, David d'Enterria, D. Boito, D. Britzger, D. d'Enterria, D. Nomura, F. Barreiro, F. Ringer, G. Somogyi, G. Zanderighi, H. Takaura, J. Bl\\\"umlein, J. Huston, J.H. Weber, J. K\\\"uhn, J. Pires, J. Soto, K. G. Chetyrkin, K. Maltman, K. Rabbertz, M. Dalla Brida, M. Golterman, M. Jamin, N. Brambilla, P. A. Baikov, P. F. Monni, P. Petreczky, R. Horsley, R. Miravitllas, R. P\\'erez-Ramos, R. Sommer, S. Alekhin, S. Bethke, S. Camarda, S. J. Brodsky, S. Kluth, S.-O. Moch, S. Peris, S. Sint, Stefan Kluth (eds.), T. Onogi, T. Teubner, X. Garcia i Tormo, X. Weichen, Z. Sz\\H{o}r, Z. Tr\\'ocs\\'anyi, Z. Tulip\\'ant","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-07-02T15:20:40Z","title":"$\\alpha_s$(2019): Precision measurements of the QCD coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01435","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:f9cb0147b6c945984593db856d7684d7477f19c3ac5e7d47575aa27d7408549a","target":"record","created_at":"2026-05-17T23:41:40Z","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":"6d95a29c6f9ce9ef882ae2a7730728c7c14593df38e8e37924d000c557776d04","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-07-02T15:20:40Z","title_canon_sha256":"4d7d05f766b09a91cae8e08b389533781c44c8c592ab35adc4e8d1db01e6f435"},"schema_version":"1.0","source":{"id":"1907.01435","kind":"arxiv","version":1}},"canonical_sha256":"a845620f2ea2e2a172bd9d4a987001657f907ce349b307e0e9a2ed4b3757fd8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a845620f2ea2e2a172bd9d4a987001657f907ce349b307e0e9a2ed4b3757fd8a","first_computed_at":"2026-05-17T23:41:40.402061Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:40.402061Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w4S10gRxSftZEzbq6P/PD9edaM05dIP+qCc5UjsuCT/AfntSdXuhoYYc0hC7kj38ZvqSK/j+8ASunBM3B4rjCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:40.402566Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.01435","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9cb0147b6c945984593db856d7684d7477f19c3ac5e7d47575aa27d7408549a","sha256:42fa816501b21910e05c88d9c8dc8232071d11ed7fe718bb67bfd4e2b3b9eefa"],"state_sha256":"1dad1459b0fcedba4e604328a230a5054a8de5214a1d5829b2ac0d7a57a38f44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LWfDwogNqF+x6XbHuz1JmxMoY02QX3ckZ0tRhiw0aJVF+Sf9dwpyaTc7F5lyFva5XBGnPCTnjJtuaJngSNprBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T04:44:14.470086Z","bundle_sha256":"523bbfe6a9584f8d5e450cd8533438625e88a38d2ed498271b3881a5d47e9ff8"}}