{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:G4DKM6YGE6IIGHF5OJBTE6RHID","short_pith_number":"pith:G4DKM6YG","canonical_record":{"source":{"id":"1103.1159","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-03-06T20:01:01Z","cross_cats_sorted":[],"title_canon_sha256":"1c6896c8a49b5c920ec42db48fdef71c1dce3521a7ab54bd0bd9684498207abf","abstract_canon_sha256":"35e9481f569da09e198fc2ed6f7389bd4123463ab965d9967cc6955d58d4a51b"},"schema_version":"1.0"},"canonical_sha256":"3706a67b062790831cbd7243327a2740d106808384aa362113e536d50b00d56c","source":{"kind":"arxiv","id":"1103.1159","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1159","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1159v2","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1159","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"pith_short_12","alias_value":"G4DKM6YGE6II","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"G4DKM6YGE6IIGHF5","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"G4DKM6YG","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:G4DKM6YGE6IIGHF5OJBTE6RHID","target":"record","payload":{"canonical_record":{"source":{"id":"1103.1159","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-03-06T20:01:01Z","cross_cats_sorted":[],"title_canon_sha256":"1c6896c8a49b5c920ec42db48fdef71c1dce3521a7ab54bd0bd9684498207abf","abstract_canon_sha256":"35e9481f569da09e198fc2ed6f7389bd4123463ab965d9967cc6955d58d4a51b"},"schema_version":"1.0"},"canonical_sha256":"3706a67b062790831cbd7243327a2740d106808384aa362113e536d50b00d56c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:28.786664Z","signature_b64":"Z2tyLtOrcnxfCZjXEyMRXoA22vfdLpKeKV5e8qFix82SUxcIWlIL0wIjdsbRJzXNGfhzaw+KKeB8denUGgbaDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3706a67b062790831cbd7243327a2740d106808384aa362113e536d50b00d56c","last_reissued_at":"2026-05-18T04:11:28.786164Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:28.786164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.1159","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":"2026-05-18T04:11:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ufFvzTkhHZR5sR5Lr4kevv43cVOk2E4pw2AU2y5pw/Guf/Zu5l+NjlOAVzVm+A4CclnRxXfUyC8Jsnr/PWCMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:13:55.472976Z"},"content_sha256":"24311cc073508b2684a42d13e4167818456fca5e61445853c3c8ddbd843c723a","schema_version":"1.0","event_id":"sha256:24311cc073508b2684a42d13e4167818456fca5e61445853c3c8ddbd843c723a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:G4DKM6YGE6IIGHF5OJBTE6RHID","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ground-State Energy and Spin Gap of Spin-1/2 Kagome Heisenberg Antiferromagnetic Clusters: Large Scale Exact Diagonalization Results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A.M. L\\\"auchli, E.S. S{\\o}rensen, J. Sudan","submitted_at":"2011-03-06T20:01:01Z","abstract_excerpt":"We present a comprehensive list of ground state energies and spin gaps of finite kagome clusters with up to 42 spins obtained using large-scale exact diagonalization techniques. This represents the current limit of this exact approach. For a fixed number of spins N we study several cluster shapes under periodic boundary conditions in both directions resulting in a toroidal geometry. The clusters are characterized by their side length and diagonal as well as the shortest \"Manhattan\" diameter of the torii. A finite-size scaling analysis of the ground state energy as well as the spin gap is then "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1159","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":"2026-05-18T04:11:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kswqLaZypJY6AaI8jomvMDTcrscwajomLnYUmwVYmS1KDhj5l7POaUGD360mPs7AYc2Um/ctGzWTQFyl//oCCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:13:55.473331Z"},"content_sha256":"0bc505f6cf5bd5d959547d566c187bace7e099b2224a5798c5127dddddad55b9","schema_version":"1.0","event_id":"sha256:0bc505f6cf5bd5d959547d566c187bace7e099b2224a5798c5127dddddad55b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/bundle.json","state_url":"https://pith.science/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/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":"2026-05-28T11:13:55Z","links":{"resolver":"https://pith.science/pith/G4DKM6YGE6IIGHF5OJBTE6RHID","bundle":"https://pith.science/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/bundle.json","state":"https://pith.science/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G4DKM6YGE6IIGHF5OJBTE6RHID/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:G4DKM6YGE6IIGHF5OJBTE6RHID","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":"35e9481f569da09e198fc2ed6f7389bd4123463ab965d9967cc6955d58d4a51b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-03-06T20:01:01Z","title_canon_sha256":"1c6896c8a49b5c920ec42db48fdef71c1dce3521a7ab54bd0bd9684498207abf"},"schema_version":"1.0","source":{"id":"1103.1159","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1159","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1159v2","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1159","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"pith_short_12","alias_value":"G4DKM6YGE6II","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"G4DKM6YGE6IIGHF5","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"G4DKM6YG","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:0bc505f6cf5bd5d959547d566c187bace7e099b2224a5798c5127dddddad55b9","target":"graph","created_at":"2026-05-18T04:11:28Z","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 present a comprehensive list of ground state energies and spin gaps of finite kagome clusters with up to 42 spins obtained using large-scale exact diagonalization techniques. This represents the current limit of this exact approach. For a fixed number of spins N we study several cluster shapes under periodic boundary conditions in both directions resulting in a toroidal geometry. The clusters are characterized by their side length and diagonal as well as the shortest \"Manhattan\" diameter of the torii. A finite-size scaling analysis of the ground state energy as well as the spin gap is then ","authors_text":"A.M. L\\\"auchli, E.S. S{\\o}rensen, J. Sudan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-03-06T20:01:01Z","title":"Ground-State Energy and Spin Gap of Spin-1/2 Kagome Heisenberg Antiferromagnetic Clusters: Large Scale Exact Diagonalization Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1159","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":"sha256:24311cc073508b2684a42d13e4167818456fca5e61445853c3c8ddbd843c723a","target":"record","created_at":"2026-05-18T04:11:28Z","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":"35e9481f569da09e198fc2ed6f7389bd4123463ab965d9967cc6955d58d4a51b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-03-06T20:01:01Z","title_canon_sha256":"1c6896c8a49b5c920ec42db48fdef71c1dce3521a7ab54bd0bd9684498207abf"},"schema_version":"1.0","source":{"id":"1103.1159","kind":"arxiv","version":2}},"canonical_sha256":"3706a67b062790831cbd7243327a2740d106808384aa362113e536d50b00d56c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3706a67b062790831cbd7243327a2740d106808384aa362113e536d50b00d56c","first_computed_at":"2026-05-18T04:11:28.786164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:28.786164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z2tyLtOrcnxfCZjXEyMRXoA22vfdLpKeKV5e8qFix82SUxcIWlIL0wIjdsbRJzXNGfhzaw+KKeB8denUGgbaDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:28.786664Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.1159","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24311cc073508b2684a42d13e4167818456fca5e61445853c3c8ddbd843c723a","sha256:0bc505f6cf5bd5d959547d566c187bace7e099b2224a5798c5127dddddad55b9"],"state_sha256":"e23d2f736c416c17e2c2fd792d1797c577829bebfaf5a1cab5e3839fdebee51b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tjz3nbwkUXy67MVTVQrmpw5VL71IzlFa9radsda5/bKvxc0AqIbxnH09w6oRVppuCfKq3Ofv78NSCKUXcuO9Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:13:55.475240Z","bundle_sha256":"7e7a50db4017dcc9cb83a8a5e1329433c37ec943aee93b91b31001d363de4fd6"}}