{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:LIU4KJADXU5SRSCSDC4OZOYKST","short_pith_number":"pith:LIU4KJAD","schema_version":"1.0","canonical_sha256":"5a29c52403bd3b28c85218b8ecbb0a94e075bef2eb3aee17780e0e463f5fa320","source":{"kind":"arxiv","id":"1012.0200","version":1},"attestation_state":"computed","paper":{"title":"Pseudoscalar decay constants from N_f=2+1+1 twisted mass lattice QCD","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Carsten Urbach, ETM Collaboration, Federico Farchioni, Gregorio Herdoiza, Karl Jansen, Marcus Petschlies","submitted_at":"2010-12-01T14:25:47Z","abstract_excerpt":"We present first results for the pseudoscalar decay constants $f_K$, $f_D$ and $f_{D_s}$ from lattice QCD with N_f=2+1+1 flavours of dynamical quarks. The lattice simulations have been performed by the European Twisted Mass collaboration (ETMC) using maximally twisted mass quarks. For the pseudoscalar decay constants we follow a mixed action approach by using so called Osterwalder-Seiler fermions in the valence sector for strange and charm quarks. The data for two values of the lattice spacing and several values of the up/down quark mass is analysed using chiral perturbation theory."},"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":"1012.0200","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"hep-lat","submitted_at":"2010-12-01T14:25:47Z","cross_cats_sorted":[],"title_canon_sha256":"df0f4974188160712a451a4e2ac55dd1f82003f60f5b491ad375ab1eb9e6af51","abstract_canon_sha256":"5fbdb343ae9db504914f2bd3580371f4e5685a67ed6ecb87c2e1e2dfcd4c26a2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:18.771077Z","signature_b64":"hkZHbOSGncphU27gtvieAX9hwE8K1nrzrLW5oNBPVU21h2rlvsuxdVrHjC6+NaQcdOs3SAqy6hlZO6AG49BEAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a29c52403bd3b28c85218b8ecbb0a94e075bef2eb3aee17780e0e463f5fa320","last_reissued_at":"2026-05-18T04:34:18.770506Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:18.770506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Pseudoscalar decay constants from N_f=2+1+1 twisted mass lattice QCD","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Carsten Urbach, ETM Collaboration, Federico Farchioni, Gregorio Herdoiza, Karl Jansen, Marcus Petschlies","submitted_at":"2010-12-01T14:25:47Z","abstract_excerpt":"We present first results for the pseudoscalar decay constants $f_K$, $f_D$ and $f_{D_s}$ from lattice QCD with N_f=2+1+1 flavours of dynamical quarks. The lattice simulations have been performed by the European Twisted Mass collaboration (ETMC) using maximally twisted mass quarks. For the pseudoscalar decay constants we follow a mixed action approach by using so called Osterwalder-Seiler fermions in the valence sector for strange and charm quarks. The data for two values of the lattice spacing and several values of the up/down quark mass is analysed using chiral perturbation theory."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0200","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1012.0200","created_at":"2026-05-18T04:34:18.770602+00:00"},{"alias_kind":"arxiv_version","alias_value":"1012.0200v1","created_at":"2026-05-18T04:34:18.770602+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0200","created_at":"2026-05-18T04:34:18.770602+00:00"},{"alias_kind":"pith_short_12","alias_value":"LIU4KJADXU5S","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_16","alias_value":"LIU4KJADXU5SRSCS","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_8","alias_value":"LIU4KJAD","created_at":"2026-05-18T12:26:10.704358+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST","json":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST.json","graph_json":"https://pith.science/api/pith-number/LIU4KJADXU5SRSCSDC4OZOYKST/graph.json","events_json":"https://pith.science/api/pith-number/LIU4KJADXU5SRSCSDC4OZOYKST/events.json","paper":"https://pith.science/paper/LIU4KJAD"},"agent_actions":{"view_html":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST","download_json":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST.json","view_paper":"https://pith.science/paper/LIU4KJAD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1012.0200&json=true","fetch_graph":"https://pith.science/api/pith-number/LIU4KJADXU5SRSCSDC4OZOYKST/graph.json","fetch_events":"https://pith.science/api/pith-number/LIU4KJADXU5SRSCSDC4OZOYKST/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST/action/storage_attestation","attest_author":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST/action/author_attestation","sign_citation":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST/action/citation_signature","submit_replication":"https://pith.science/pith/LIU4KJADXU5SRSCSDC4OZOYKST/action/replication_record"}},"created_at":"2026-05-18T04:34:18.770602+00:00","updated_at":"2026-05-18T04:34:18.770602+00:00"}