{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:4Q4HEELU2J7FB6QMGJFWKDLWOF","short_pith_number":"pith:4Q4HEELU","canonical_record":{"source":{"id":"2103.07871","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-14T08:47:27Z","cross_cats_sorted":[],"title_canon_sha256":"c4f4054d00daab79142f509c95f5662341e15bc885a9035c4a316e5673e28910","abstract_canon_sha256":"dfaf362353e4b070319d1c3cf9fd3b080b1b38fcf9a530b7e29f43eece157619"},"schema_version":"1.0"},"canonical_sha256":"e438721174d27e50fa0c324b650d76716ea407e2911e34b1983d1fee7aaaa219","source":{"kind":"arxiv","id":"2103.07871","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.07871","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"arxiv_version","alias_value":"2103.07871v2","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.07871","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_12","alias_value":"4Q4HEELU2J7F","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_16","alias_value":"4Q4HEELU2J7FB6QM","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_8","alias_value":"4Q4HEELU","created_at":"2026-07-05T02:43:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:4Q4HEELU2J7FB6QMGJFWKDLWOF","target":"record","payload":{"canonical_record":{"source":{"id":"2103.07871","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-14T08:47:27Z","cross_cats_sorted":[],"title_canon_sha256":"c4f4054d00daab79142f509c95f5662341e15bc885a9035c4a316e5673e28910","abstract_canon_sha256":"dfaf362353e4b070319d1c3cf9fd3b080b1b38fcf9a530b7e29f43eece157619"},"schema_version":"1.0"},"canonical_sha256":"e438721174d27e50fa0c324b650d76716ea407e2911e34b1983d1fee7aaaa219","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:43:19.874883Z","signature_b64":"MjAh0cyYcZvF6ZOJGxncVer3RkC5j3IPXk/ketOu8dFShuhCf80xT80k7qfQekURFDUQfd2cFMyUG3PzSz5cAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e438721174d27e50fa0c324b650d76716ea407e2911e34b1983d1fee7aaaa219","last_reissued_at":"2026-07-05T02:43:19.874433Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:43:19.874433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.07871","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:43:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c+AhjCRThZ54y1UMhehtgxKaUNmojsWQAlBBntvjhKhqRBBkoastFwbfZ9Y3LJmWMxZiUscovyuIA62TXFXUBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:35:20.475144Z"},"content_sha256":"472f1e9bf404ee121c02d83ec45af5175fc3dfc5a746bb96139ad5ffca336ea5","schema_version":"1.0","event_id":"sha256:472f1e9bf404ee121c02d83ec45af5175fc3dfc5a746bb96139ad5ffca336ea5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:4Q4HEELU2J7FB6QMGJFWKDLWOF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The strange partner of the $Z_{c}$ structures in a coupled-channels model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"David R. Entem, F. Fernandez, Pablo G. Ortega","submitted_at":"2021-03-14T08:47:27Z","abstract_excerpt":"The discovery of a new charged structure in the $K^+$ recoil-mass spectrum near the $D^-_s D^{*0}/D^{*-}_sD^0$ threshold, dubbed $Z_{cs}(3985)^-$, reinforce the idea that the structure of hadrons goes beyond the naive $qqq$ and the $q\\bar q$ structures.\n  The existence of this state, with quark content $c\\bar c s\\bar u$, can be expected from the well-established $Z_c(3900)^\\pm$ and $Z_c(4020)$ states using SU(3) flavor symmetry. The $Z_c$ structures have been explained using the chiral constituent quark model in a coupled-channels calculation and, in this work, we undertake the study of the $Z"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.07871","kind":"arxiv","version":2},"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/2103.07871/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":"2026-07-05T02:43:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PK0lueAW7HJWC6pU3hScZE6Ckz577t9Yalg4sxiotwxS6RBbD2nEuL/GEPHdaIztZJjbtWvEfShGQb2faPDwAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:35:20.476059Z"},"content_sha256":"cf2264664b8254109c2dca4ba4152a295bf7700d11d22603ff13ac1bc95d8433","schema_version":"1.0","event_id":"sha256:cf2264664b8254109c2dca4ba4152a295bf7700d11d22603ff13ac1bc95d8433"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/bundle.json","state_url":"https://pith.science/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/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":"2026-08-06T00:35:20Z","links":{"resolver":"https://pith.science/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF","bundle":"https://pith.science/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/bundle.json","state":"https://pith.science/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4Q4HEELU2J7FB6QMGJFWKDLWOF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:4Q4HEELU2J7FB6QMGJFWKDLWOF","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":"dfaf362353e4b070319d1c3cf9fd3b080b1b38fcf9a530b7e29f43eece157619","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-14T08:47:27Z","title_canon_sha256":"c4f4054d00daab79142f509c95f5662341e15bc885a9035c4a316e5673e28910"},"schema_version":"1.0","source":{"id":"2103.07871","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.07871","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"arxiv_version","alias_value":"2103.07871v2","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.07871","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_12","alias_value":"4Q4HEELU2J7F","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_16","alias_value":"4Q4HEELU2J7FB6QM","created_at":"2026-07-05T02:43:19Z"},{"alias_kind":"pith_short_8","alias_value":"4Q4HEELU","created_at":"2026-07-05T02:43:19Z"}],"graph_snapshots":[{"event_id":"sha256:cf2264664b8254109c2dca4ba4152a295bf7700d11d22603ff13ac1bc95d8433","target":"graph","created_at":"2026-07-05T02:43:19Z","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/2103.07871/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The discovery of a new charged structure in the $K^+$ recoil-mass spectrum near the $D^-_s D^{*0}/D^{*-}_sD^0$ threshold, dubbed $Z_{cs}(3985)^-$, reinforce the idea that the structure of hadrons goes beyond the naive $qqq$ and the $q\\bar q$ structures.\n  The existence of this state, with quark content $c\\bar c s\\bar u$, can be expected from the well-established $Z_c(3900)^\\pm$ and $Z_c(4020)$ states using SU(3) flavor symmetry. The $Z_c$ structures have been explained using the chiral constituent quark model in a coupled-channels calculation and, in this work, we undertake the study of the $Z","authors_text":"David R. Entem, F. Fernandez, Pablo G. Ortega","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-14T08:47:27Z","title":"The strange partner of the $Z_{c}$ structures in a coupled-channels model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.07871","kind":"arxiv","version":2},"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":"sha256:472f1e9bf404ee121c02d83ec45af5175fc3dfc5a746bb96139ad5ffca336ea5","target":"record","created_at":"2026-07-05T02:43:19Z","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":"dfaf362353e4b070319d1c3cf9fd3b080b1b38fcf9a530b7e29f43eece157619","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-14T08:47:27Z","title_canon_sha256":"c4f4054d00daab79142f509c95f5662341e15bc885a9035c4a316e5673e28910"},"schema_version":"1.0","source":{"id":"2103.07871","kind":"arxiv","version":2}},"canonical_sha256":"e438721174d27e50fa0c324b650d76716ea407e2911e34b1983d1fee7aaaa219","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e438721174d27e50fa0c324b650d76716ea407e2911e34b1983d1fee7aaaa219","first_computed_at":"2026-07-05T02:43:19.874433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:43:19.874433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MjAh0cyYcZvF6ZOJGxncVer3RkC5j3IPXk/ketOu8dFShuhCf80xT80k7qfQekURFDUQfd2cFMyUG3PzSz5cAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:43:19.874883Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.07871","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:472f1e9bf404ee121c02d83ec45af5175fc3dfc5a746bb96139ad5ffca336ea5","sha256:cf2264664b8254109c2dca4ba4152a295bf7700d11d22603ff13ac1bc95d8433"],"state_sha256":"39463eb367068506891bdc12e4979126975af2e73fd414b1f2fe2829d0bf5a77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DutenZLt9H/BV4CgyUmZ5TLYfcUUfbFUxoBhobFwE+NP814/4NQ5dUvM1m0JIs4wfjpF41N8t8dzGFC0LWaBCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T00:35:20.482661Z","bundle_sha256":"1562fcab30a7a4c783f129333feab99879299f349bde715e84b830c2f8cce9c7"}}