{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:CQCEL7UBVGM77WIP65IFGY5BZG","short_pith_number":"pith:CQCEL7UB","canonical_record":{"source":{"id":"0904.4068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-04-26T23:26:43Z","cross_cats_sorted":[],"title_canon_sha256":"d6d0acc33a3d1a0a7f8cc271ef4d967f80b799f9645a04989154c534dc6ef3d4","abstract_canon_sha256":"61f79b90495a8968c2a4fc33f7974c5779983c77a498f73f1d02a2a96b9b8a86"},"schema_version":"1.0"},"canonical_sha256":"140445fe81a999ffd90ff7505363a1c9a51299bad5ab904fee1382d2388bac20","source":{"kind":"arxiv","id":"0904.4068","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.4068","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"0904.4068v1","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.4068","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"CQCEL7UBVGM7","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"CQCEL7UBVGM77WIP","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"CQCEL7UB","created_at":"2026-07-04T17:16:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:CQCEL7UBVGM77WIP65IFGY5BZG","target":"record","payload":{"canonical_record":{"source":{"id":"0904.4068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-04-26T23:26:43Z","cross_cats_sorted":[],"title_canon_sha256":"d6d0acc33a3d1a0a7f8cc271ef4d967f80b799f9645a04989154c534dc6ef3d4","abstract_canon_sha256":"61f79b90495a8968c2a4fc33f7974c5779983c77a498f73f1d02a2a96b9b8a86"},"schema_version":"1.0"},"canonical_sha256":"140445fe81a999ffd90ff7505363a1c9a51299bad5ab904fee1382d2388bac20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:16:06.028100Z","signature_b64":"UXrJ0W9knUHy0uANS8OZcArMwzYfjO/UlE/7aqPWeeP+ttnP0JAlAq3d+viQ1eHwjdpXtPWFoky9LIYuI6PQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"140445fe81a999ffd90ff7505363a1c9a51299bad5ab904fee1382d2388bac20","last_reissued_at":"2026-07-04T17:16:06.027647Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:16:06.027647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.4068","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":"2026-07-04T17:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIhC/Vx2MaeRWQ5FCLQtn/tqaZ++4QEt37AkLjMEjTJKnjd4d+jJziwFsiScclS4QFnS++Z4xAJj1aMZmzGnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:23:14.267759Z"},"content_sha256":"ab7a8bdb31ba9ffb3206d48a6a2b704ce5fde416ee16650a7b84aced0ab542e6","schema_version":"1.0","event_id":"sha256:ab7a8bdb31ba9ffb3206d48a6a2b704ce5fde416ee16650a7b84aced0ab542e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:CQCEL7UBVGM77WIP65IFGY5BZG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coupled-Channel and Screening Effects in Charmonium Spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bai-Qing Li, Ce Meng, Kuang-Ta Chao","submitted_at":"2009-04-26T23:26:43Z","abstract_excerpt":"Using the same quenched limit as input, we compare the charmonium spectra predicted by the coupled-channel model and the screened potential model in the mass region below 4 GeV, in which the contributions from decay channels involving P-wave (as well as even higher excited) D mesons can be neglected. We find that the two models have similar global features in describing charmonium spectrum since they embody the same effect of the vacuum polarization of dynamical light quark pairs. This agreement is encouraging for using the screened potential to further describe the mass spectrum of higher cha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.4068","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/0904.4068/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":"2026-07-04T17:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyLeC38GI/Vl2xRQRFRyy5Qh7eMtPwWkx4LOtJE4O2Rl83t5zF2waakCcAQhutzT+rC+kuNMRiNJbu86J5vsDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:23:14.268923Z"},"content_sha256":"94e1f7ebdad4c9f32d923c344efdfc4c8561fddd06d27ec6b9d7004cfcdd0e63","schema_version":"1.0","event_id":"sha256:94e1f7ebdad4c9f32d923c344efdfc4c8561fddd06d27ec6b9d7004cfcdd0e63"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CQCEL7UBVGM77WIP65IFGY5BZG/bundle.json","state_url":"https://pith.science/pith/CQCEL7UBVGM77WIP65IFGY5BZG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CQCEL7UBVGM77WIP65IFGY5BZG/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":"2026-08-06T06:23:14Z","links":{"resolver":"https://pith.science/pith/CQCEL7UBVGM77WIP65IFGY5BZG","bundle":"https://pith.science/pith/CQCEL7UBVGM77WIP65IFGY5BZG/bundle.json","state":"https://pith.science/pith/CQCEL7UBVGM77WIP65IFGY5BZG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CQCEL7UBVGM77WIP65IFGY5BZG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:CQCEL7UBVGM77WIP65IFGY5BZG","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":"61f79b90495a8968c2a4fc33f7974c5779983c77a498f73f1d02a2a96b9b8a86","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-04-26T23:26:43Z","title_canon_sha256":"d6d0acc33a3d1a0a7f8cc271ef4d967f80b799f9645a04989154c534dc6ef3d4"},"schema_version":"1.0","source":{"id":"0904.4068","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.4068","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"0904.4068v1","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.4068","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"CQCEL7UBVGM7","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"CQCEL7UBVGM77WIP","created_at":"2026-07-04T17:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"CQCEL7UB","created_at":"2026-07-04T17:16:06Z"}],"graph_snapshots":[{"event_id":"sha256:94e1f7ebdad4c9f32d923c344efdfc4c8561fddd06d27ec6b9d7004cfcdd0e63","target":"graph","created_at":"2026-07-04T17:16:06Z","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/0904.4068/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the same quenched limit as input, we compare the charmonium spectra predicted by the coupled-channel model and the screened potential model in the mass region below 4 GeV, in which the contributions from decay channels involving P-wave (as well as even higher excited) D mesons can be neglected. We find that the two models have similar global features in describing charmonium spectrum since they embody the same effect of the vacuum polarization of dynamical light quark pairs. This agreement is encouraging for using the screened potential to further describe the mass spectrum of higher cha","authors_text":"Bai-Qing Li, Ce Meng, Kuang-Ta Chao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-04-26T23:26:43Z","title":"Coupled-Channel and Screening Effects in Charmonium Spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.4068","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:ab7a8bdb31ba9ffb3206d48a6a2b704ce5fde416ee16650a7b84aced0ab542e6","target":"record","created_at":"2026-07-04T17:16:06Z","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":"61f79b90495a8968c2a4fc33f7974c5779983c77a498f73f1d02a2a96b9b8a86","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-04-26T23:26:43Z","title_canon_sha256":"d6d0acc33a3d1a0a7f8cc271ef4d967f80b799f9645a04989154c534dc6ef3d4"},"schema_version":"1.0","source":{"id":"0904.4068","kind":"arxiv","version":1}},"canonical_sha256":"140445fe81a999ffd90ff7505363a1c9a51299bad5ab904fee1382d2388bac20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"140445fe81a999ffd90ff7505363a1c9a51299bad5ab904fee1382d2388bac20","first_computed_at":"2026-07-04T17:16:06.027647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:16:06.027647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UXrJ0W9knUHy0uANS8OZcArMwzYfjO/UlE/7aqPWeeP+ttnP0JAlAq3d+viQ1eHwjdpXtPWFoky9LIYuI6PQAg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:16:06.028100Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.4068","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab7a8bdb31ba9ffb3206d48a6a2b704ce5fde416ee16650a7b84aced0ab542e6","sha256:94e1f7ebdad4c9f32d923c344efdfc4c8561fddd06d27ec6b9d7004cfcdd0e63"],"state_sha256":"8e3d52debef5422e02571ced977886638b27e3fe0d6a062f4a6c76720c6f0fff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aIbVcmtF7QSNhXcKMO6XDRw3IWg8l2SmLB1TmIMaz16ecCaj9OO6IlWtInfo4M1DhT6VjEtxyHHEsvVJKqpBCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T06:23:14.292793Z","bundle_sha256":"14df9cdabc8680cab0fd64f756b9562660d71c13200c10720c399d8b9bd7c40c"}}