{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:W2M4L3F42BEMTTBYPVMC47M2PV","short_pith_number":"pith:W2M4L3F4","schema_version":"1.0","canonical_sha256":"b699c5ecbcd048c9cc387d582e7d9a7d4ac91e3e54dc096e95fd7663fd5f5951","source":{"kind":"arxiv","id":"2106.04526","version":1},"attestation_state":"computed","paper":{"title":"A window on infrared QCD with small expansion parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Julien Serreau, Marcela Pel\\'aez, Matthieu Tissier, Nicol\\'as Wschebor, Urko Reinosa","submitted_at":"2021-06-08T17:07:41Z","abstract_excerpt":"Lattice simulations of the QCD correlation functions in the Landau gauge have established two remarkable facts. First, the coupling constant in the gauge sector remains finite and moderate at all scales, suggesting that some kind of perturbative description should be valid down to infrared momenta. Second, the gluon propagator reaches a finite nonzero value at vanishing momentum, corresponding to a gluon screening mass. We review recent studies which aim at describing the long-distance properties of Landau gauge QCD by means of the perturbative Curci-Ferrari model. The latter is the simplest d"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2106.04526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2021-06-08T17:07:41Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"1e49c9b117f43d43083b79a4a2d65ecb4df5aecec5b330a767432cd4e1d13270","abstract_canon_sha256":"bb8090b1281208c78f7ed7f7116f9f239ad92694c0bc17832cf26ef96d0bd19c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:42:42.791055Z","signature_b64":"7OInxEGYlekvG6togPElO//LJUdOo0YGf7xSZIPNle71+tdKtB85EG7KJuTN9dP/yVULcX13OAHjsRE/pXn5Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b699c5ecbcd048c9cc387d582e7d9a7d4ac91e3e54dc096e95fd7663fd5f5951","last_reissued_at":"2026-07-05T03:42:42.790647Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:42:42.790647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A window on infrared QCD with small expansion parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Julien Serreau, Marcela Pel\\'aez, Matthieu Tissier, Nicol\\'as Wschebor, Urko Reinosa","submitted_at":"2021-06-08T17:07:41Z","abstract_excerpt":"Lattice simulations of the QCD correlation functions in the Landau gauge have established two remarkable facts. First, the coupling constant in the gauge sector remains finite and moderate at all scales, suggesting that some kind of perturbative description should be valid down to infrared momenta. Second, the gluon propagator reaches a finite nonzero value at vanishing momentum, corresponding to a gluon screening mass. We review recent studies which aim at describing the long-distance properties of Landau gauge QCD by means of the perturbative Curci-Ferrari model. The latter is the simplest d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.04526","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/2106.04526/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2106.04526","created_at":"2026-07-05T03:42:42.790704+00:00"},{"alias_kind":"arxiv_version","alias_value":"2106.04526v1","created_at":"2026-07-05T03:42:42.790704+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.04526","created_at":"2026-07-05T03:42:42.790704+00:00"},{"alias_kind":"pith_short_12","alias_value":"W2M4L3F42BEM","created_at":"2026-07-05T03:42:42.790704+00:00"},{"alias_kind":"pith_short_16","alias_value":"W2M4L3F42BEMTTBY","created_at":"2026-07-05T03:42:42.790704+00:00"},{"alias_kind":"pith_short_8","alias_value":"W2M4L3F4","created_at":"2026-07-05T03:42:42.790704+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2509.04365","citing_title":"Nonrelativistic meson masses from the Curci-Ferrari model","ref_index":53,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV","json":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV.json","graph_json":"https://pith.science/api/pith-number/W2M4L3F42BEMTTBYPVMC47M2PV/graph.json","events_json":"https://pith.science/api/pith-number/W2M4L3F42BEMTTBYPVMC47M2PV/events.json","paper":"https://pith.science/paper/W2M4L3F4"},"agent_actions":{"view_html":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV","download_json":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV.json","view_paper":"https://pith.science/paper/W2M4L3F4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2106.04526&json=true","fetch_graph":"https://pith.science/api/pith-number/W2M4L3F42BEMTTBYPVMC47M2PV/graph.json","fetch_events":"https://pith.science/api/pith-number/W2M4L3F42BEMTTBYPVMC47M2PV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV/action/storage_attestation","attest_author":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV/action/author_attestation","sign_citation":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV/action/citation_signature","submit_replication":"https://pith.science/pith/W2M4L3F42BEMTTBYPVMC47M2PV/action/replication_record"}},"created_at":"2026-07-05T03:42:42.790704+00:00","updated_at":"2026-07-05T03:42:42.790704+00:00"}