{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LYEBFRXFU354ZVPJSZH7H7YBXS","short_pith_number":"pith:LYEBFRXF","canonical_record":{"source":{"id":"1905.03877","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-05-09T22:25:54Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"033d4db77e09e42d33248a01afe2c3f8504b4421a8271c4e25428e0b7c2490a7","abstract_canon_sha256":"bacc834066c1e763a143ef21ed7982080fe53ba3ce2cec4d7d54dd5c1d18b0c5"},"schema_version":"1.0"},"canonical_sha256":"5e0812c6e5a6fbccd5e9964ff3ff01bc9bed591ee392ae4a56eece245f985fa9","source":{"kind":"arxiv","id":"1905.03877","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.03877","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"arxiv_version","alias_value":"1905.03877v1","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.03877","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"pith_short_12","alias_value":"LYEBFRXFU354","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LYEBFRXFU354ZVPJ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LYEBFRXF","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LYEBFRXFU354ZVPJSZH7H7YBXS","target":"record","payload":{"canonical_record":{"source":{"id":"1905.03877","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-05-09T22:25:54Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"033d4db77e09e42d33248a01afe2c3f8504b4421a8271c4e25428e0b7c2490a7","abstract_canon_sha256":"bacc834066c1e763a143ef21ed7982080fe53ba3ce2cec4d7d54dd5c1d18b0c5"},"schema_version":"1.0"},"canonical_sha256":"5e0812c6e5a6fbccd5e9964ff3ff01bc9bed591ee392ae4a56eece245f985fa9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:10.927160Z","signature_b64":"yxD6/ViGNO4cU1AOPfChYfP3MBC4wdNrNiGmdAYhXi2kC5Wkc29RYfOAehsU9OQzz3nv9hMN+joKb/OmHq7sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e0812c6e5a6fbccd5e9964ff3ff01bc9bed591ee392ae4a56eece245f985fa9","last_reissued_at":"2026-05-17T23:44:10.926594Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:10.926594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.03877","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":"2026-05-17T23:44:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BrnF0lhZyQy1Dx0tZ0BYbtJgvHCwixWJFIJT1UZgttacMW9ejGHn6il5s5czLshsLCyXPNDspTdwyEkkHZH0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:47:34.832655Z"},"content_sha256":"038dc43e408a3f804227bd6084c4b224f5e94d85a91e7acaf6fb571aad16b7da","schema_version":"1.0","event_id":"sha256:038dc43e408a3f804227bd6084c4b224f5e94d85a91e7acaf6fb571aad16b7da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LYEBFRXFU354ZVPJSZH7H7YBXS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Production of exotic tetraquarks $QQ\\bar{q}\\bar{q}$ in heavy-ion collisions at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"A. Valcarce, C. E. Fontoura, G. Krein, J. Vijande","submitted_at":"2019-05-09T22:25:54Z","abstract_excerpt":"We investigate the production of exotic tetraquarks, $QQ\\bar{q}\\bar{q} \\equiv T_{QQ}$ ($Q=c$ or $b$ and $q=u$ or $d$), in relativistic heavy-ion collisions using the quark coalescence model. The $T_{QQ}$ yield is given by the overlap of the density matrix of the constituents in the emission source with the Wigner function of the produced tetraquark. The tetraquark wave function is obtained from exact solutions of the four-body problem using realistic constituent models. The production yields are typically one order of magnitude smaller than previous estimations based on simplified wave functio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.03877","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:44:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vXoSvjbmzeL1vt6UrUXUP1PiZGsZy6car17yRxFp/MjBCVDP1xYaC1wOyUU7jhlMGvRCJwX4Zrk73d8zyagmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:47:34.833366Z"},"content_sha256":"b0e5bfafcfde7bbe80047416bd81291601f44f7ed281ac0d2cbca9cfa679c41a","schema_version":"1.0","event_id":"sha256:b0e5bfafcfde7bbe80047416bd81291601f44f7ed281ac0d2cbca9cfa679c41a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/bundle.json","state_url":"https://pith.science/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/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":"2026-06-11T22:47:34Z","links":{"resolver":"https://pith.science/pith/LYEBFRXFU354ZVPJSZH7H7YBXS","bundle":"https://pith.science/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/bundle.json","state":"https://pith.science/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LYEBFRXFU354ZVPJSZH7H7YBXS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LYEBFRXFU354ZVPJSZH7H7YBXS","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":"bacc834066c1e763a143ef21ed7982080fe53ba3ce2cec4d7d54dd5c1d18b0c5","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-05-09T22:25:54Z","title_canon_sha256":"033d4db77e09e42d33248a01afe2c3f8504b4421a8271c4e25428e0b7c2490a7"},"schema_version":"1.0","source":{"id":"1905.03877","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.03877","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"arxiv_version","alias_value":"1905.03877v1","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.03877","created_at":"2026-05-17T23:44:10Z"},{"alias_kind":"pith_short_12","alias_value":"LYEBFRXFU354","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LYEBFRXFU354ZVPJ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LYEBFRXF","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:b0e5bfafcfde7bbe80047416bd81291601f44f7ed281ac0d2cbca9cfa679c41a","target":"graph","created_at":"2026-05-17T23:44:10Z","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"},"paper":{"abstract_excerpt":"We investigate the production of exotic tetraquarks, $QQ\\bar{q}\\bar{q} \\equiv T_{QQ}$ ($Q=c$ or $b$ and $q=u$ or $d$), in relativistic heavy-ion collisions using the quark coalescence model. The $T_{QQ}$ yield is given by the overlap of the density matrix of the constituents in the emission source with the Wigner function of the produced tetraquark. The tetraquark wave function is obtained from exact solutions of the four-body problem using realistic constituent models. The production yields are typically one order of magnitude smaller than previous estimations based on simplified wave functio","authors_text":"A. Valcarce, C. E. Fontoura, G. Krein, J. Vijande","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-05-09T22:25:54Z","title":"Production of exotic tetraquarks $QQ\\bar{q}\\bar{q}$ in heavy-ion collisions at the LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.03877","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":"sha256:038dc43e408a3f804227bd6084c4b224f5e94d85a91e7acaf6fb571aad16b7da","target":"record","created_at":"2026-05-17T23:44:10Z","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":"bacc834066c1e763a143ef21ed7982080fe53ba3ce2cec4d7d54dd5c1d18b0c5","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-05-09T22:25:54Z","title_canon_sha256":"033d4db77e09e42d33248a01afe2c3f8504b4421a8271c4e25428e0b7c2490a7"},"schema_version":"1.0","source":{"id":"1905.03877","kind":"arxiv","version":1}},"canonical_sha256":"5e0812c6e5a6fbccd5e9964ff3ff01bc9bed591ee392ae4a56eece245f985fa9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e0812c6e5a6fbccd5e9964ff3ff01bc9bed591ee392ae4a56eece245f985fa9","first_computed_at":"2026-05-17T23:44:10.926594Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:10.926594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yxD6/ViGNO4cU1AOPfChYfP3MBC4wdNrNiGmdAYhXi2kC5Wkc29RYfOAehsU9OQzz3nv9hMN+joKb/OmHq7sCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:10.927160Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.03877","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:038dc43e408a3f804227bd6084c4b224f5e94d85a91e7acaf6fb571aad16b7da","sha256:b0e5bfafcfde7bbe80047416bd81291601f44f7ed281ac0d2cbca9cfa679c41a"],"state_sha256":"119a0a686f0e215df3c45ac95627ff2329c87f1d2cf343ace1012d6c54cea2c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANxC0R+wLWxAVaBYZbBALNT7x8XP3+F4i7X2lSAdtQRg2LBk9ZdLBBM71kl3n7BmLVf+xXTd39bRyD0FJ1SYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T22:47:34.838257Z","bundle_sha256":"0cf17e31124f8e4f28d9c5b9b2095813a2246f22aa4ee65e13d286e3a3bdbce9"}}