{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:CXZSUI3EB4CXOWOITCHAG4PCF6","short_pith_number":"pith:CXZSUI3E","canonical_record":{"source":{"id":"2605.21587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-20T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"19a380f0f1cdaacd0648a5d911586f53112dec1e52b99fe8ebf926ff076edda3","abstract_canon_sha256":"a669cd15cb4b40cba31af7d385d5e48c3c53b96d32a8ff1d43690fd329affb97"},"schema_version":"1.0"},"canonical_sha256":"15f32a23640f057759c8988e0371e22f86e2c7b887f2d5f8b7d28ac551707ca0","source":{"kind":"arxiv","id":"2605.21587","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21587","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21587v1","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21587","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_12","alias_value":"CXZSUI3EB4CX","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_16","alias_value":"CXZSUI3EB4CXOWOI","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_8","alias_value":"CXZSUI3E","created_at":"2026-05-22T01:03:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:CXZSUI3EB4CXOWOITCHAG4PCF6","target":"record","payload":{"canonical_record":{"source":{"id":"2605.21587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-20T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"19a380f0f1cdaacd0648a5d911586f53112dec1e52b99fe8ebf926ff076edda3","abstract_canon_sha256":"a669cd15cb4b40cba31af7d385d5e48c3c53b96d32a8ff1d43690fd329affb97"},"schema_version":"1.0"},"canonical_sha256":"15f32a23640f057759c8988e0371e22f86e2c7b887f2d5f8b7d28ac551707ca0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:03:23.912529Z","signature_b64":"z6Ms5r54LZiK6P6hGwOjgGFzHENq5kn4A6yl5ae92Ig2mxXoHJqerMOPYzXBy6behUYRAu5bL/41iLmKJvgUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15f32a23640f057759c8988e0371e22f86e2c7b887f2d5f8b7d28ac551707ca0","last_reissued_at":"2026-05-22T01:03:23.911850Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:03:23.911850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.21587","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":"2026-05-22T01:03:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tf4NrLGEz/lpkwvKLEzEH8CIHmISgLO/zGVuBYEA+IgMzxdwGgjlF50Jbnn1CvK1YzhvtvbLKRcr4CRgCPErCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:42:48.540927Z"},"content_sha256":"1b25536dcb0b7b4657bb14e084fc3ac2c89e16961dae0f3d557fea5939253f46","schema_version":"1.0","event_id":"sha256:1b25536dcb0b7b4657bb14e084fc3ac2c89e16961dae0f3d557fea5939253f46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:CXZSUI3EB4CXOWOITCHAG4PCF6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large-flavor route to a stable U(1) Dirac spin liquid on the maple-leaf lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Andreas Feuerpfeil, Ronny Thomale, Subir Sachdev, Yasir Iqbal, Yunchao Zhang","submitted_at":"2026-05-20T18:00:02Z","abstract_excerpt":"The $\\mathrm{U}(1)$ Dirac spin liquid provides a useful organizing framework for frustrated magnets: it offers an algebraic parent state from which competing orders, confinement patterns, and low-energy spectral features can be understood. Whether such a state can occur as a stable ground state of a two-dimensional spin Hamiltonian remains an open question, because monopole events of the compact gauge field can proliferate and confine the spinons. Here, we show that the maple-leaf lattice provides a distinct route to this problem. Its Dirac spin liquid realizes QED$_3$ with $N_f=12$ Dirac ferm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21587","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/2605.21587/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":"2026-05-22T01:03:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+zEdVSw6vzurmLiyVi+ODRiV7KeyqTX2zZYWliMJlL9V/I475MPoupQlpzb+KwVHCBQvhRTDe4hO5ijwAZFFBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:42:48.541644Z"},"content_sha256":"2159c3ce04066d07796a83c7360e6633f6bacdfe487e5e23aa3c0e085ad1f277","schema_version":"1.0","event_id":"sha256:2159c3ce04066d07796a83c7360e6633f6bacdfe487e5e23aa3c0e085ad1f277"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/bundle.json","state_url":"https://pith.science/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/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":"2026-05-25T09:42:48Z","links":{"resolver":"https://pith.science/pith/CXZSUI3EB4CXOWOITCHAG4PCF6","bundle":"https://pith.science/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/bundle.json","state":"https://pith.science/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CXZSUI3EB4CXOWOITCHAG4PCF6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:CXZSUI3EB4CXOWOITCHAG4PCF6","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":"a669cd15cb4b40cba31af7d385d5e48c3c53b96d32a8ff1d43690fd329affb97","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-20T18:00:02Z","title_canon_sha256":"19a380f0f1cdaacd0648a5d911586f53112dec1e52b99fe8ebf926ff076edda3"},"schema_version":"1.0","source":{"id":"2605.21587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21587","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21587v1","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21587","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_12","alias_value":"CXZSUI3EB4CX","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_16","alias_value":"CXZSUI3EB4CXOWOI","created_at":"2026-05-22T01:03:23Z"},{"alias_kind":"pith_short_8","alias_value":"CXZSUI3E","created_at":"2026-05-22T01:03:23Z"}],"graph_snapshots":[{"event_id":"sha256:2159c3ce04066d07796a83c7360e6633f6bacdfe487e5e23aa3c0e085ad1f277","target":"graph","created_at":"2026-05-22T01:03:23Z","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/2605.21587/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The $\\mathrm{U}(1)$ Dirac spin liquid provides a useful organizing framework for frustrated magnets: it offers an algebraic parent state from which competing orders, confinement patterns, and low-energy spectral features can be understood. Whether such a state can occur as a stable ground state of a two-dimensional spin Hamiltonian remains an open question, because monopole events of the compact gauge field can proliferate and confine the spinons. Here, we show that the maple-leaf lattice provides a distinct route to this problem. Its Dirac spin liquid realizes QED$_3$ with $N_f=12$ Dirac ferm","authors_text":"Andreas Feuerpfeil, Ronny Thomale, Subir Sachdev, Yasir Iqbal, Yunchao Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-20T18:00:02Z","title":"Large-flavor route to a stable U(1) Dirac spin liquid on the maple-leaf lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21587","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":"sha256:1b25536dcb0b7b4657bb14e084fc3ac2c89e16961dae0f3d557fea5939253f46","target":"record","created_at":"2026-05-22T01:03:23Z","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":"a669cd15cb4b40cba31af7d385d5e48c3c53b96d32a8ff1d43690fd329affb97","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-20T18:00:02Z","title_canon_sha256":"19a380f0f1cdaacd0648a5d911586f53112dec1e52b99fe8ebf926ff076edda3"},"schema_version":"1.0","source":{"id":"2605.21587","kind":"arxiv","version":1}},"canonical_sha256":"15f32a23640f057759c8988e0371e22f86e2c7b887f2d5f8b7d28ac551707ca0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15f32a23640f057759c8988e0371e22f86e2c7b887f2d5f8b7d28ac551707ca0","first_computed_at":"2026-05-22T01:03:23.911850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:23.911850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z6Ms5r54LZiK6P6hGwOjgGFzHENq5kn4A6yl5ae92Ig2mxXoHJqerMOPYzXBy6behUYRAu5bL/41iLmKJvgUCQ==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:23.912529Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b25536dcb0b7b4657bb14e084fc3ac2c89e16961dae0f3d557fea5939253f46","sha256:2159c3ce04066d07796a83c7360e6633f6bacdfe487e5e23aa3c0e085ad1f277"],"state_sha256":"29acfae211e5e2f93b70b7f4551e2c1b622e01358ba877a71f1b83e7f697a6c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QhdZBV3FMJcW8aiitWhg/pXdBu6tH7JWEv+4apvBsv5xuxfnNLCWwJReoejn6pZQu2aqIjylcMKYbPP5NrdxCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T09:42:48.545222Z","bundle_sha256":"6cf9f655559cc8e45486f137045fc541f73faf31dbd0addc5173e4c70bad2b9c"}}