{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LOC6QTTPA6WPCHKMBKBSLAIPXZ","short_pith_number":"pith:LOC6QTTP","canonical_record":{"source":{"id":"1908.03310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-08-09T04:36:37Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"bde09408ec96cbf00a7c831c5df342a358b985b168b9983a48fac8d2934e0775","abstract_canon_sha256":"d0400568289db8dfa4e15cc9d2c8e2dd6a176d3b3717621ed96cf07a3445893f"},"schema_version":"1.0"},"canonical_sha256":"5b85e84e6f07acf11d4c0a8325810fbe764ba742aeaa894df835d664b7c91564","source":{"kind":"arxiv","id":"1908.03310","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03310","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03310v1","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03310","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_12","alias_value":"LOC6QTTPA6WP","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_16","alias_value":"LOC6QTTPA6WPCHKM","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_8","alias_value":"LOC6QTTP","created_at":"2026-07-04T23:56:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LOC6QTTPA6WPCHKMBKBSLAIPXZ","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-08-09T04:36:37Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"bde09408ec96cbf00a7c831c5df342a358b985b168b9983a48fac8d2934e0775","abstract_canon_sha256":"d0400568289db8dfa4e15cc9d2c8e2dd6a176d3b3717621ed96cf07a3445893f"},"schema_version":"1.0"},"canonical_sha256":"5b85e84e6f07acf11d4c0a8325810fbe764ba742aeaa894df835d664b7c91564","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:56:36.202033Z","signature_b64":"FgJw+kUsYaW4F3SyCVvipHUtY7uVxWFSIuir44fPNXzis2MSSYWAENE7gJa/tww6TzWbrAJbiYqj+oueJ8SiBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b85e84e6f07acf11d4c0a8325810fbe764ba742aeaa894df835d664b7c91564","last_reissued_at":"2026-07-04T23:56:36.201639Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:56:36.201639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03310","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":"2026-07-04T23:56:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tVXkLFz9YgDiYswlpkhH2fE1IIfLTmTqJitdyeRnh50aG4ZB6GK5LdgmAGLnhtsXid1FYEvpZ3jszXiJG1AGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:57:38.345363Z"},"content_sha256":"4bb6af825fcfb7748c36a7cc844f737509cda1764a823728f92606374ae99969","schema_version":"1.0","event_id":"sha256:4bb6af825fcfb7748c36a7cc844f737509cda1764a823728f92606374ae99969"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LOC6QTTPA6WPCHKMBKBSLAIPXZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of $\\mathbf{q_T}$-weighted transverse-spin-dependent azimuthal asymmetries at COMPASS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"Riccardo Longo","submitted_at":"2019-08-09T04:36:37Z","abstract_excerpt":"COMPASS is a fixed-target experiment in operation at the CERN North Area (SPS, M2 beam-line) since 2002. An important part of the broad physics programme of the experiment is dedicated to the exploration of the transverse spin-structure of the nucleon studying target transverse spin dependent azimuthal asymmetries (TSAs) arising in the Semi-Inclusive DIS (SIDIS) and Drell-Yan (DY) cross-sections. In addition to those measurements, COMPASS has recently studied also the TSAs weighted by powers of the hadron transverse momentum (in SIDIS) and virtual photon transverse momentum, $q_T$ (in DY). In "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03310","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.03310/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T23:56:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uG7XYFDcFL755j5+Ibcb2FFkVrpYaVmw10KoTN27HlKtHiXFM0lfpYFLtKPKjKitTiJqGHhxukKjgK69DoDJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:57:38.346327Z"},"content_sha256":"397478ed91972864e58577acb4e702b4d91619899e6d884d90c825b5d6c7976c","schema_version":"1.0","event_id":"sha256:397478ed91972864e58577acb4e702b4d91619899e6d884d90c825b5d6c7976c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/bundle.json","state_url":"https://pith.science/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/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":"2026-08-15T17:57:38Z","links":{"resolver":"https://pith.science/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ","bundle":"https://pith.science/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/bundle.json","state":"https://pith.science/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LOC6QTTPA6WPCHKMBKBSLAIPXZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LOC6QTTPA6WPCHKMBKBSLAIPXZ","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":"d0400568289db8dfa4e15cc9d2c8e2dd6a176d3b3717621ed96cf07a3445893f","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-08-09T04:36:37Z","title_canon_sha256":"bde09408ec96cbf00a7c831c5df342a358b985b168b9983a48fac8d2934e0775"},"schema_version":"1.0","source":{"id":"1908.03310","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03310","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03310v1","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03310","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_12","alias_value":"LOC6QTTPA6WP","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_16","alias_value":"LOC6QTTPA6WPCHKM","created_at":"2026-07-04T23:56:36Z"},{"alias_kind":"pith_short_8","alias_value":"LOC6QTTP","created_at":"2026-07-04T23:56:36Z"}],"graph_snapshots":[{"event_id":"sha256:397478ed91972864e58577acb4e702b4d91619899e6d884d90c825b5d6c7976c","target":"graph","created_at":"2026-07-04T23:56:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.03310/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"COMPASS is a fixed-target experiment in operation at the CERN North Area (SPS, M2 beam-line) since 2002. An important part of the broad physics programme of the experiment is dedicated to the exploration of the transverse spin-structure of the nucleon studying target transverse spin dependent azimuthal asymmetries (TSAs) arising in the Semi-Inclusive DIS (SIDIS) and Drell-Yan (DY) cross-sections. In addition to those measurements, COMPASS has recently studied also the TSAs weighted by powers of the hadron transverse momentum (in SIDIS) and virtual photon transverse momentum, $q_T$ (in DY). In ","authors_text":"Riccardo Longo","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-08-09T04:36:37Z","title":"Measurement of $\\mathbf{q_T}$-weighted transverse-spin-dependent azimuthal asymmetries at COMPASS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03310","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":"sha256:4bb6af825fcfb7748c36a7cc844f737509cda1764a823728f92606374ae99969","target":"record","created_at":"2026-07-04T23:56:36Z","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":"d0400568289db8dfa4e15cc9d2c8e2dd6a176d3b3717621ed96cf07a3445893f","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-08-09T04:36:37Z","title_canon_sha256":"bde09408ec96cbf00a7c831c5df342a358b985b168b9983a48fac8d2934e0775"},"schema_version":"1.0","source":{"id":"1908.03310","kind":"arxiv","version":1}},"canonical_sha256":"5b85e84e6f07acf11d4c0a8325810fbe764ba742aeaa894df835d664b7c91564","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b85e84e6f07acf11d4c0a8325810fbe764ba742aeaa894df835d664b7c91564","first_computed_at":"2026-07-04T23:56:36.201639Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:56:36.201639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FgJw+kUsYaW4F3SyCVvipHUtY7uVxWFSIuir44fPNXzis2MSSYWAENE7gJa/tww6TzWbrAJbiYqj+oueJ8SiBw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:56:36.202033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03310","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bb6af825fcfb7748c36a7cc844f737509cda1764a823728f92606374ae99969","sha256:397478ed91972864e58577acb4e702b4d91619899e6d884d90c825b5d6c7976c"],"state_sha256":"9baba3d825f61fa2460b75121803168a0569c43f87ce5d7507bcb7755e2dfbae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mt53ibvb002ZF+hBmu4L0DTtlc5hWdkxDUfe2zW0B5OfnHG/RDyh9g/qckWJmlnBOy34EY6cdPM9RhKAlHPgDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T17:57:38.352606Z","bundle_sha256":"ee9317b8ca0a7836aa7c6b44225c52af339e1fc417fa39f8bda1d0deb22deade"}}