{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:RKZVOO5WH3UE6PVDBRRNVQ4D7M","short_pith_number":"pith:RKZVOO5W","canonical_record":{"source":{"id":"1404.5747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2014-04-23T09:02:02Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"title_canon_sha256":"9c2e8f981462519433c4dd66e96824a310d49e9e4e4a2ca7e7d5f3cef483aea9","abstract_canon_sha256":"ef56d0cb6409d26b3ffb4094e5811a7d20b7721bc3ceeb127a403f1a2d6e644a"},"schema_version":"1.0"},"canonical_sha256":"8ab3573bb63ee84f3ea30c62dac383fb2ee550fadebe74517991e2034a0e8216","source":{"kind":"arxiv","id":"1404.5747","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5747","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5747v1","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5747","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"pith_short_12","alias_value":"RKZVOO5WH3UE","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"RKZVOO5WH3UE6PVD","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"RKZVOO5W","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:RKZVOO5WH3UE6PVDBRRNVQ4D7M","target":"record","payload":{"canonical_record":{"source":{"id":"1404.5747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2014-04-23T09:02:02Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"title_canon_sha256":"9c2e8f981462519433c4dd66e96824a310d49e9e4e4a2ca7e7d5f3cef483aea9","abstract_canon_sha256":"ef56d0cb6409d26b3ffb4094e5811a7d20b7721bc3ceeb127a403f1a2d6e644a"},"schema_version":"1.0"},"canonical_sha256":"8ab3573bb63ee84f3ea30c62dac383fb2ee550fadebe74517991e2034a0e8216","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:17.210074Z","signature_b64":"AW4Hutqe3+SZ69150wM5RLxiakAe+QHeoGuE8TQIq4Vs3R49BOAhwFoOPEHAbxFYDCqcSM5qXjCCdyrsx46QDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8ab3573bb63ee84f3ea30c62dac383fb2ee550fadebe74517991e2034a0e8216","last_reissued_at":"2026-05-17T23:54:17.209452Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:17.209452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.5747","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":"2026-05-17T23:54:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FwxMst/BC/T6/O5w1O2fv1WcWEtop1Rk4X68rvJ7XqubmuwyPsGJT6OczC5A/AZMhunUdL4BRVpN+DCElY/ADA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:20:47.718191Z"},"content_sha256":"5efb155eda1b4fbb4c1c22d6c06bdce779370696758ed0494ea6368b2eb0dd99","schema_version":"1.0","event_id":"sha256:5efb155eda1b4fbb4c1c22d6c06bdce779370696758ed0494ea6368b2eb0dd99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:RKZVOO5WH3UE6PVDBRRNVQ4D7M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vertex operator approach to semi-infinite spin chain : recent progress","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"primary_cat":"nlin.SI","authors_text":"Takeo Kojima","submitted_at":"2014-04-23T09:02:02Z","abstract_excerpt":"Vertex operator approach is a powerful method to study exactly solvable models. We review recent progress of vertex operator approach to semi-infinite spin chain. (1) The first progress is a generalization of boundary condition. We study $U_q(\\widehat{sl}(2))$ spin chain with a triangular boundary, which gives a generalization of diagonal boundary [Baseilhac and Belliard 2013, Baseilhac and Kojima 2014]. We give a bosonization of the boundary vacuum state. As an application, we derive a summation formulae of boundary magnetization. (2) The second progress is a generalization of hidden symmetry"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5747","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":"2026-05-17T23:54:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XbsubncwWVd5zzQP/q9jBVtVWUmjaaxyzcdmwenE7jWlBkIw7c6J+4Qsme35Pey1ZoDNAqevRD8TmA4TUz07AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:20:47.718561Z"},"content_sha256":"6b5e09e960373bdf6fee37a69b91d47a8722d7eb85ee1cbc1546f32e9fb12fe1","schema_version":"1.0","event_id":"sha256:6b5e09e960373bdf6fee37a69b91d47a8722d7eb85ee1cbc1546f32e9fb12fe1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/bundle.json","state_url":"https://pith.science/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/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":"2026-06-01T20:20:47Z","links":{"resolver":"https://pith.science/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M","bundle":"https://pith.science/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/bundle.json","state":"https://pith.science/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RKZVOO5WH3UE6PVDBRRNVQ4D7M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:RKZVOO5WH3UE6PVDBRRNVQ4D7M","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":"ef56d0cb6409d26b3ffb4094e5811a7d20b7721bc3ceeb127a403f1a2d6e644a","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2014-04-23T09:02:02Z","title_canon_sha256":"9c2e8f981462519433c4dd66e96824a310d49e9e4e4a2ca7e7d5f3cef483aea9"},"schema_version":"1.0","source":{"id":"1404.5747","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5747","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5747v1","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5747","created_at":"2026-05-17T23:54:17Z"},{"alias_kind":"pith_short_12","alias_value":"RKZVOO5WH3UE","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"RKZVOO5WH3UE6PVD","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"RKZVOO5W","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:6b5e09e960373bdf6fee37a69b91d47a8722d7eb85ee1cbc1546f32e9fb12fe1","target":"graph","created_at":"2026-05-17T23:54:17Z","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":"Vertex operator approach is a powerful method to study exactly solvable models. We review recent progress of vertex operator approach to semi-infinite spin chain. (1) The first progress is a generalization of boundary condition. We study $U_q(\\widehat{sl}(2))$ spin chain with a triangular boundary, which gives a generalization of diagonal boundary [Baseilhac and Belliard 2013, Baseilhac and Kojima 2014]. We give a bosonization of the boundary vacuum state. As an application, we derive a summation formulae of boundary magnetization. (2) The second progress is a generalization of hidden symmetry","authors_text":"Takeo Kojima","cross_cats":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2014-04-23T09:02:02Z","title":"Vertex operator approach to semi-infinite spin chain : recent progress"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5747","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":"sha256:5efb155eda1b4fbb4c1c22d6c06bdce779370696758ed0494ea6368b2eb0dd99","target":"record","created_at":"2026-05-17T23:54:17Z","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":"ef56d0cb6409d26b3ffb4094e5811a7d20b7721bc3ceeb127a403f1a2d6e644a","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","math.QA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2014-04-23T09:02:02Z","title_canon_sha256":"9c2e8f981462519433c4dd66e96824a310d49e9e4e4a2ca7e7d5f3cef483aea9"},"schema_version":"1.0","source":{"id":"1404.5747","kind":"arxiv","version":1}},"canonical_sha256":"8ab3573bb63ee84f3ea30c62dac383fb2ee550fadebe74517991e2034a0e8216","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ab3573bb63ee84f3ea30c62dac383fb2ee550fadebe74517991e2034a0e8216","first_computed_at":"2026-05-17T23:54:17.209452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:17.209452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AW4Hutqe3+SZ69150wM5RLxiakAe+QHeoGuE8TQIq4Vs3R49BOAhwFoOPEHAbxFYDCqcSM5qXjCCdyrsx46QDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:17.210074Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.5747","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5efb155eda1b4fbb4c1c22d6c06bdce779370696758ed0494ea6368b2eb0dd99","sha256:6b5e09e960373bdf6fee37a69b91d47a8722d7eb85ee1cbc1546f32e9fb12fe1"],"state_sha256":"8cfb5e2f9220c48e423de48db89e55e9daf036294098e3eb33900c57fad9d9f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mIfe57QyGy+U2030ecjZ2hyuaVcjDBKHTQM9FN/AjORuI4ynP6Eakt/WTw7g7MaCZwr2ZBPfQPXzQmBH8YC+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:20:47.720604Z","bundle_sha256":"35cfa3171c2aeb428153c16fbb529eeb2fc7f72aec991fc0d94c2a61cdf9f198"}}