{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:GWRLCBARDPYAFA3PJJ6PT7FJJA","short_pith_number":"pith:GWRLCBAR","canonical_record":{"source":{"id":"2001.04095","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-13T08:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"605bd03ff9994be27ed030d3702abb4ead6f7be3b5761970bd02342cac55fa5a","abstract_canon_sha256":"4b00e4fb4a43fe496a3ae98dbd23da0a6e84fd9574abb17ed487f21e836b18a5"},"schema_version":"1.0"},"canonical_sha256":"35a2b104111bf002836f4a7cf9fca9482a04963d5b56e3e33ec1f0b4d3acece0","source":{"kind":"arxiv","id":"2001.04095","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04095","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04095v3","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04095","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_12","alias_value":"GWRLCBARDPYA","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_16","alias_value":"GWRLCBARDPYAFA3P","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_8","alias_value":"GWRLCBAR","created_at":"2026-07-05T00:55:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:GWRLCBARDPYAFA3PJJ6PT7FJJA","target":"record","payload":{"canonical_record":{"source":{"id":"2001.04095","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-13T08:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"605bd03ff9994be27ed030d3702abb4ead6f7be3b5761970bd02342cac55fa5a","abstract_canon_sha256":"4b00e4fb4a43fe496a3ae98dbd23da0a6e84fd9574abb17ed487f21e836b18a5"},"schema_version":"1.0"},"canonical_sha256":"35a2b104111bf002836f4a7cf9fca9482a04963d5b56e3e33ec1f0b4d3acece0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:55:08.722225Z","signature_b64":"/LGm7ZcORn0Mx3IgSORaNw0FGNpWKTwSJ3Jgs4P72XQzp/xA+vLNifE6szug8yQMqyc6r+feAnnlo3GsFtKlBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"35a2b104111bf002836f4a7cf9fca9482a04963d5b56e3e33ec1f0b4d3acece0","last_reissued_at":"2026-07-05T00:55:08.721780Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:55:08.721780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.04095","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:55:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sLvkh7p8GZ0mk+riySGA5NX2hBiAz+iauCOX8i86iigiMIq8+TsWeW/Bh2biZSaxqs9wKG0U/Mphzpu822qyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:08:09.570569Z"},"content_sha256":"a339227fffb5ca49ec623c443601f01a5d5c49ccf331c21bc3b17dfb0f5074b3","schema_version":"1.0","event_id":"sha256:a339227fffb5ca49ec623c443601f01a5d5c49ccf331c21bc3b17dfb0f5074b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:GWRLCBARDPYAFA3PJJ6PT7FJJA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Landau equation and QCD sum rules for the tetraquark molecular states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Zhi-Gang Wang","submitted_at":"2020-01-13T08:06:29Z","abstract_excerpt":"The quarks and gluons are confined objects, they cannot be put on the mass-shell, it is questionable to apply the Landau equation to study the Feynman diagrams in the QCD sum rules. Furthermore, we carry out the operator product expansion in the deep Euclidean region $p^2\\to -\\infty$, where the Landau singularities cannot exist. The Landau equation servers as a kinematical equation in the momentum space, and is independent on the factorizable and nonfactorizable properties of the Feynman diagrams in the color space. The meson-meson scattering state and tetraquark molecular state both have four"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04095","kind":"arxiv","version":3},"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/2001.04095/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":"2026-07-05T00:55:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hlbaikQuoONLtVK5mzkPHc+5rFQB1l+2ym63UOEONHpc21Dfg2+L0kd3m7/mpr/rHc87v8zaepI9ICTQ4XDoCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:08:09.572037Z"},"content_sha256":"f90f61623f419f8d9411a82c660dcfc85add499518bae383479819666a4fe0b1","schema_version":"1.0","event_id":"sha256:f90f61623f419f8d9411a82c660dcfc85add499518bae383479819666a4fe0b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/bundle.json","state_url":"https://pith.science/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/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":"2026-08-17T18:08:09Z","links":{"resolver":"https://pith.science/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA","bundle":"https://pith.science/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/bundle.json","state":"https://pith.science/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GWRLCBARDPYAFA3PJJ6PT7FJJA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GWRLCBARDPYAFA3PJJ6PT7FJJA","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":"4b00e4fb4a43fe496a3ae98dbd23da0a6e84fd9574abb17ed487f21e836b18a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-13T08:06:29Z","title_canon_sha256":"605bd03ff9994be27ed030d3702abb4ead6f7be3b5761970bd02342cac55fa5a"},"schema_version":"1.0","source":{"id":"2001.04095","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04095","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04095v3","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04095","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_12","alias_value":"GWRLCBARDPYA","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_16","alias_value":"GWRLCBARDPYAFA3P","created_at":"2026-07-05T00:55:08Z"},{"alias_kind":"pith_short_8","alias_value":"GWRLCBAR","created_at":"2026-07-05T00:55:08Z"}],"graph_snapshots":[{"event_id":"sha256:f90f61623f419f8d9411a82c660dcfc85add499518bae383479819666a4fe0b1","target":"graph","created_at":"2026-07-05T00:55:08Z","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/2001.04095/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The quarks and gluons are confined objects, they cannot be put on the mass-shell, it is questionable to apply the Landau equation to study the Feynman diagrams in the QCD sum rules. Furthermore, we carry out the operator product expansion in the deep Euclidean region $p^2\\to -\\infty$, where the Landau singularities cannot exist. The Landau equation servers as a kinematical equation in the momentum space, and is independent on the factorizable and nonfactorizable properties of the Feynman diagrams in the color space. The meson-meson scattering state and tetraquark molecular state both have four","authors_text":"Zhi-Gang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-13T08:06:29Z","title":"Landau equation and QCD sum rules for the tetraquark molecular states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04095","kind":"arxiv","version":3},"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:a339227fffb5ca49ec623c443601f01a5d5c49ccf331c21bc3b17dfb0f5074b3","target":"record","created_at":"2026-07-05T00:55:08Z","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":"4b00e4fb4a43fe496a3ae98dbd23da0a6e84fd9574abb17ed487f21e836b18a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-13T08:06:29Z","title_canon_sha256":"605bd03ff9994be27ed030d3702abb4ead6f7be3b5761970bd02342cac55fa5a"},"schema_version":"1.0","source":{"id":"2001.04095","kind":"arxiv","version":3}},"canonical_sha256":"35a2b104111bf002836f4a7cf9fca9482a04963d5b56e3e33ec1f0b4d3acece0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"35a2b104111bf002836f4a7cf9fca9482a04963d5b56e3e33ec1f0b4d3acece0","first_computed_at":"2026-07-05T00:55:08.721780Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:55:08.721780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/LGm7ZcORn0Mx3IgSORaNw0FGNpWKTwSJ3Jgs4P72XQzp/xA+vLNifE6szug8yQMqyc6r+feAnnlo3GsFtKlBA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:55:08.722225Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.04095","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a339227fffb5ca49ec623c443601f01a5d5c49ccf331c21bc3b17dfb0f5074b3","sha256:f90f61623f419f8d9411a82c660dcfc85add499518bae383479819666a4fe0b1"],"state_sha256":"c8db96d0eefda883c4c8160224d30d19e012cec31a30ba1fa1edfbafbb36ec3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SS3WW1Gx3MpzXXaiUNxceQu/qMD1rS9DWNiRcALJceu6JHaXUL9B9DaLJAR8YZ9zHwdSZR8CS4LHn/lIqUpkAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T18:08:09.584057Z","bundle_sha256":"32bdd732b788b159173f83d42421aa661c6dff24fdbbcf3947f831ee9732e673"}}