{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:EBPNVDGAGF2ZT44URFCR5T5U4L","short_pith_number":"pith:EBPNVDGA","canonical_record":{"source":{"id":"1905.00082","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-04-30T20:02:05Z","cross_cats_sorted":["astro-ph.HE","quant-ph"],"title_canon_sha256":"91c811e2f49bfe2ac5270e7d755ebfc7f22c2ba52be3cfa02895c9e568c9f994","abstract_canon_sha256":"8dd6f450ee382ba35de21b4b1123a4ca6cc726965cf18c2f8f5740bb01e556b6"},"schema_version":"1.0"},"canonical_sha256":"205eda8cc0317599f39489451ecfb4e2fbfa2ce001090e453e1783fa09a95962","source":{"kind":"arxiv","id":"1905.00082","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00082","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00082v1","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00082","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"pith_short_12","alias_value":"EBPNVDGAGF2Z","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EBPNVDGAGF2ZT44U","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EBPNVDGA","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:EBPNVDGAGF2ZT44URFCR5T5U4L","target":"record","payload":{"canonical_record":{"source":{"id":"1905.00082","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-04-30T20:02:05Z","cross_cats_sorted":["astro-ph.HE","quant-ph"],"title_canon_sha256":"91c811e2f49bfe2ac5270e7d755ebfc7f22c2ba52be3cfa02895c9e568c9f994","abstract_canon_sha256":"8dd6f450ee382ba35de21b4b1123a4ca6cc726965cf18c2f8f5740bb01e556b6"},"schema_version":"1.0"},"canonical_sha256":"205eda8cc0317599f39489451ecfb4e2fbfa2ce001090e453e1783fa09a95962","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:54.021873Z","signature_b64":"42LH6E65HSOxw+qrfihSeExGCsbOoy2WsWu6eY39YXx8Hxs6JFTgF9GaLbUjFH0R4j691a90Gq2mXT3dq9R+Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"205eda8cc0317599f39489451ecfb4e2fbfa2ce001090e453e1783fa09a95962","last_reissued_at":"2026-05-17T23:39:54.021298Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:54.021298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.00082","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":"2026-05-17T23:39:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pqXDXhLlA+Ln6R0NWInmOsilnzOFKb9Oa2ExgrYVKVpE/r40yKbtvKC7lZ2Kz9MQidtHrp9vq9U91qL6mLTFAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:15:29.874798Z"},"content_sha256":"57882a4cb1c365276adae98b8e5b76c00f76e67dd6fc31513ad0ce640ad73465","schema_version":"1.0","event_id":"sha256:57882a4cb1c365276adae98b8e5b76c00f76e67dd6fc31513ad0ce640ad73465"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:EBPNVDGAGF2ZT44URFCR5T5U4L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On symmetries of Hamiltonians describing systems with arbitrary spins","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","quant-ph"],"primary_cat":"nucl-th","authors_text":"A.B. Balantekin, Amol V. Patwardhan, Michael J. Cervia","submitted_at":"2019-04-30T20:02:05Z","abstract_excerpt":"We consider systems where dynamical variables are the generators of the SU(2) group. A subset of these Hamiltonians is exactly solvable using the Bethe ansatz techniques. We show that Bethe ansatz equations are equivalent to polynomial relationships between the operator invariants, or equivalently, between eigenvalues of those invariants."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00082","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":"2026-05-17T23:39:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5wEUi0qi5oUfnnIB3xks1QgqYNfEmHlamt5fmmyi74C4eY7XscLplkvRTp6DPknptdDQcyqdaF0Uvu+NA/UdDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:15:29.875539Z"},"content_sha256":"bd63125eb039d2db01430c8e3112f3da42669fe051893d83061d492cde0af66b","schema_version":"1.0","event_id":"sha256:bd63125eb039d2db01430c8e3112f3da42669fe051893d83061d492cde0af66b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/bundle.json","state_url":"https://pith.science/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/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":"2026-05-30T21:15:29Z","links":{"resolver":"https://pith.science/pith/EBPNVDGAGF2ZT44URFCR5T5U4L","bundle":"https://pith.science/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/bundle.json","state":"https://pith.science/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EBPNVDGAGF2ZT44URFCR5T5U4L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EBPNVDGAGF2ZT44URFCR5T5U4L","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":"8dd6f450ee382ba35de21b4b1123a4ca6cc726965cf18c2f8f5740bb01e556b6","cross_cats_sorted":["astro-ph.HE","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-04-30T20:02:05Z","title_canon_sha256":"91c811e2f49bfe2ac5270e7d755ebfc7f22c2ba52be3cfa02895c9e568c9f994"},"schema_version":"1.0","source":{"id":"1905.00082","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00082","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00082v1","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00082","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"pith_short_12","alias_value":"EBPNVDGAGF2Z","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EBPNVDGAGF2ZT44U","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EBPNVDGA","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:bd63125eb039d2db01430c8e3112f3da42669fe051893d83061d492cde0af66b","target":"graph","created_at":"2026-05-17T23:39:54Z","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 consider systems where dynamical variables are the generators of the SU(2) group. A subset of these Hamiltonians is exactly solvable using the Bethe ansatz techniques. We show that Bethe ansatz equations are equivalent to polynomial relationships between the operator invariants, or equivalently, between eigenvalues of those invariants.","authors_text":"A.B. Balantekin, Amol V. Patwardhan, Michael J. Cervia","cross_cats":["astro-ph.HE","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-04-30T20:02:05Z","title":"On symmetries of Hamiltonians describing systems with arbitrary spins"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00082","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":"sha256:57882a4cb1c365276adae98b8e5b76c00f76e67dd6fc31513ad0ce640ad73465","target":"record","created_at":"2026-05-17T23:39:54Z","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":"8dd6f450ee382ba35de21b4b1123a4ca6cc726965cf18c2f8f5740bb01e556b6","cross_cats_sorted":["astro-ph.HE","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-04-30T20:02:05Z","title_canon_sha256":"91c811e2f49bfe2ac5270e7d755ebfc7f22c2ba52be3cfa02895c9e568c9f994"},"schema_version":"1.0","source":{"id":"1905.00082","kind":"arxiv","version":1}},"canonical_sha256":"205eda8cc0317599f39489451ecfb4e2fbfa2ce001090e453e1783fa09a95962","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"205eda8cc0317599f39489451ecfb4e2fbfa2ce001090e453e1783fa09a95962","first_computed_at":"2026-05-17T23:39:54.021298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:54.021298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"42LH6E65HSOxw+qrfihSeExGCsbOoy2WsWu6eY39YXx8Hxs6JFTgF9GaLbUjFH0R4j691a90Gq2mXT3dq9R+Dw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:54.021873Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.00082","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57882a4cb1c365276adae98b8e5b76c00f76e67dd6fc31513ad0ce640ad73465","sha256:bd63125eb039d2db01430c8e3112f3da42669fe051893d83061d492cde0af66b"],"state_sha256":"749c3c7ef94d3d95f9700297c6966f853570e7e82b68e605a560058ba1420eef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"clcTaGJa1SET/KN534cqm3qs6+/xUTTdxou5SnHGxXoxX6Zkv1OP2dUwZpuhX47R3ja6JgI58dWDe4uM1LdlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:15:29.877567Z","bundle_sha256":"17d4763ebaad19b4abd8afb4abc7913ea073f8dcd865187d9ce054ff0fe2a154"}}