{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JY3PBJ2AABYKZOMR5HWLNC6AGZ","short_pith_number":"pith:JY3PBJ2A","canonical_record":{"source":{"id":"1507.04980","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-07-17T14:21:56Z","cross_cats_sorted":[],"title_canon_sha256":"f0adb9311941d5fb3f8695b4810eed71d52eea75da82f02d5b34fe9043135cce","abstract_canon_sha256":"b7c52dd34ceeacb69801afa14f9f4e8f5cffa125176d67eca3f48d4850d23414"},"schema_version":"1.0"},"canonical_sha256":"4e36f0a7400070acb991e9ecb68bc03673caeacbd9619d8bdd71f79b2dbfb7fa","source":{"kind":"arxiv","id":"1507.04980","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04980","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04980v2","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04980","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"JY3PBJ2AABYK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JY3PBJ2AABYKZOMR","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JY3PBJ2A","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JY3PBJ2AABYKZOMR5HWLNC6AGZ","target":"record","payload":{"canonical_record":{"source":{"id":"1507.04980","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-07-17T14:21:56Z","cross_cats_sorted":[],"title_canon_sha256":"f0adb9311941d5fb3f8695b4810eed71d52eea75da82f02d5b34fe9043135cce","abstract_canon_sha256":"b7c52dd34ceeacb69801afa14f9f4e8f5cffa125176d67eca3f48d4850d23414"},"schema_version":"1.0"},"canonical_sha256":"4e36f0a7400070acb991e9ecb68bc03673caeacbd9619d8bdd71f79b2dbfb7fa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:37.543260Z","signature_b64":"15RMAPoIWz9Jpjpv7YqEwa0nKmaYYTxOxkxggIhKSVi1FzSBgxxLrEVV577yQ/+SbHSoxn+Gh9ueojdIMMHxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e36f0a7400070acb991e9ecb68bc03673caeacbd9619d8bdd71f79b2dbfb7fa","last_reissued_at":"2026-05-18T01:31:37.542614Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:37.542614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.04980","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":"2026-05-18T01:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wQMIKbrmjx6yzGQ8Cf6ysL8S9MizRSTUwkLpI5Q8uSd23f0VnP9Y40F87v6lxNgxi6JEF9OuQdbRYQ/RHNuRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:33:13.084176Z"},"content_sha256":"5a087a950564a277d58b71141abb794558979e9345c07aa1ea7a1a94901ba2c7","schema_version":"1.0","event_id":"sha256:5a087a950564a277d58b71141abb794558979e9345c07aa1ea7a1a94901ba2c7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JY3PBJ2AABYKZOMR5HWLNC6AGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The New Pentaquarks in the Diquark Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.D. Polosa, L. Maiani, V. Riquer","submitted_at":"2015-07-17T14:21:56Z","abstract_excerpt":"Pentaquark baryons are a natural expectation of an extended picture of hadrons where quarks and diquarks are the fundamental units. The parity/mass pattern observed, when compared to that of exotic mesons, appears as the footprint of a compact five-quark structure. What has been learned from the X,Y,Z phenomenology informs about the newly found pentaquark structure and suggests further experimental tests and directions to be explored."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04980","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":""},"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":"2026-05-18T01:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WwYyRswnEo1avbhChU3yPM7tIdR72Lc/zgiYWHM0yHEQjfRWoR3TFGBoGP/xj4uTZC74hVTbD5Xc7jOpdGe8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:33:13.084548Z"},"content_sha256":"bc6d2be16224ca24ca5d6a209fac4f6d8198fafcbed707502a0924045200718f","schema_version":"1.0","event_id":"sha256:bc6d2be16224ca24ca5d6a209fac4f6d8198fafcbed707502a0924045200718f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/bundle.json","state_url":"https://pith.science/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/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":"2026-05-28T06:33:13Z","links":{"resolver":"https://pith.science/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ","bundle":"https://pith.science/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/bundle.json","state":"https://pith.science/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JY3PBJ2AABYKZOMR5HWLNC6AGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JY3PBJ2AABYKZOMR5HWLNC6AGZ","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":"b7c52dd34ceeacb69801afa14f9f4e8f5cffa125176d67eca3f48d4850d23414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-07-17T14:21:56Z","title_canon_sha256":"f0adb9311941d5fb3f8695b4810eed71d52eea75da82f02d5b34fe9043135cce"},"schema_version":"1.0","source":{"id":"1507.04980","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04980","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04980v2","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04980","created_at":"2026-05-18T01:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"JY3PBJ2AABYK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JY3PBJ2AABYKZOMR","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JY3PBJ2A","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:bc6d2be16224ca24ca5d6a209fac4f6d8198fafcbed707502a0924045200718f","target":"graph","created_at":"2026-05-18T01:31:37Z","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":"Pentaquark baryons are a natural expectation of an extended picture of hadrons where quarks and diquarks are the fundamental units. The parity/mass pattern observed, when compared to that of exotic mesons, appears as the footprint of a compact five-quark structure. What has been learned from the X,Y,Z phenomenology informs about the newly found pentaquark structure and suggests further experimental tests and directions to be explored.","authors_text":"A.D. Polosa, L. Maiani, V. Riquer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-07-17T14:21:56Z","title":"The New Pentaquarks in the Diquark Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04980","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":"sha256:5a087a950564a277d58b71141abb794558979e9345c07aa1ea7a1a94901ba2c7","target":"record","created_at":"2026-05-18T01:31:37Z","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":"b7c52dd34ceeacb69801afa14f9f4e8f5cffa125176d67eca3f48d4850d23414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-07-17T14:21:56Z","title_canon_sha256":"f0adb9311941d5fb3f8695b4810eed71d52eea75da82f02d5b34fe9043135cce"},"schema_version":"1.0","source":{"id":"1507.04980","kind":"arxiv","version":2}},"canonical_sha256":"4e36f0a7400070acb991e9ecb68bc03673caeacbd9619d8bdd71f79b2dbfb7fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e36f0a7400070acb991e9ecb68bc03673caeacbd9619d8bdd71f79b2dbfb7fa","first_computed_at":"2026-05-18T01:31:37.542614Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:37.542614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"15RMAPoIWz9Jpjpv7YqEwa0nKmaYYTxOxkxggIhKSVi1FzSBgxxLrEVV577yQ/+SbHSoxn+Gh9ueojdIMMHxAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:37.543260Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.04980","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a087a950564a277d58b71141abb794558979e9345c07aa1ea7a1a94901ba2c7","sha256:bc6d2be16224ca24ca5d6a209fac4f6d8198fafcbed707502a0924045200718f"],"state_sha256":"d687361a741c3725f4e00c912220d0809e4f07ea555f52a6229b8a6d3520ab9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6qvKS/Sxqz/DYQP+Wu4Xev4NBZ+2gi4w/n3wibd1iAEpsh6sYB5lDftNC8Fbh7THoy7E/ik0H9HmnsdXtzR8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:33:13.086578Z","bundle_sha256":"be2fa2fd3e23014501e42f833ca7243513d269fa3ec599cb086ace674260965c"}}