{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QB2766WDIE2OPIWXNM6YCBVIB6","short_pith_number":"pith:QB2766WD","canonical_record":{"source":{"id":"1705.05372","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-15T18:00:00Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph"],"title_canon_sha256":"5ceb4982ec1b4e3ac8498a02d68d6f966f6b61433a655876b7405e25187cc31b","abstract_canon_sha256":"b0c9de9907eccc8af68b77c1fc0a99c7cc07019bdf48f6f4a8d6a8bfe32c8104"},"schema_version":"1.0"},"canonical_sha256":"8075ff7ac34134e7a2d76b3d8106a80f80fa952d70e6c350cf1a295c89594bda","source":{"kind":"arxiv","id":"1705.05372","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05372","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05372v4","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05372","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"pith_short_12","alias_value":"QB2766WDIE2O","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"QB2766WDIE2OPIWX","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"QB2766WD","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QB2766WDIE2OPIWXNM6YCBVIB6","target":"record","payload":{"canonical_record":{"source":{"id":"1705.05372","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-15T18:00:00Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph"],"title_canon_sha256":"5ceb4982ec1b4e3ac8498a02d68d6f966f6b61433a655876b7405e25187cc31b","abstract_canon_sha256":"b0c9de9907eccc8af68b77c1fc0a99c7cc07019bdf48f6f4a8d6a8bfe32c8104"},"schema_version":"1.0"},"canonical_sha256":"8075ff7ac34134e7a2d76b3d8106a80f80fa952d70e6c350cf1a295c89594bda","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:02.373790Z","signature_b64":"HrT7AakaSTD3FhQzLZicoO4EPXoQQqReN+YJz+fsgPCLjSQx+y3JBD5DEaCC0BwaOSFA6AR156lbwQgwjW4oAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8075ff7ac34134e7a2d76b3d8106a80f80fa952d70e6c350cf1a295c89594bda","last_reissued_at":"2026-05-18T00:24:02.373301Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:02.373301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.05372","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8+YH+0abscvoX9i8fh6KeJECEBvn4LgwAXdBAvuhrUjdbqk1wKu1ZKuZz494zQtJJGxOJornAXfOmk6nyN0iDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:10:14.181066Z"},"content_sha256":"4037c1a6cc2521d55a18fbfb751193276fa70dd445e5c3acc01c354b55c275d6","schema_version":"1.0","event_id":"sha256:4037c1a6cc2521d55a18fbfb751193276fa70dd445e5c3acc01c354b55c275d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QB2766WDIE2OPIWXNM6YCBVIB6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Construction of Hamiltonians by supervised learning of energy and entanglement spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","physics.comp-ph"],"primary_cat":"cond-mat.str-el","authors_text":"Hiroyuki Fujita, Masaki Oshikawa, Sho Sugiura, Yuya O. Nakagawa","submitted_at":"2017-05-15T18:00:00Z","abstract_excerpt":"Correlated many-body problems ubiquitously appear in various fields of physics such as condensed matter physics, nuclear physics, and statistical physics. However, due to the interplay of the large number of degrees of freedom, it is generically impossible to treat these problems from first principles. Thus the construction of a proper model, namely effective Hamiltonian, is essential. Here, we propose a simple scheme of constructing Hamiltonians from given energy or entanglement spectra with machine learning. We apply the proposed scheme to the Hubbard model at the half-filling, and compare t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05372","kind":"arxiv","version":4},"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":"2026-05-18T00:24:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FGWDCrWu/mJDz7GGqflSzeJo5gydojjcYtCxfZ9rLYEHhWLnYfTXS/0eiz2mMeSbf1iRx9mlAv2cQflUfFTABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:10:14.181435Z"},"content_sha256":"62c90b8619e413abea4a8a857fd9a1a780f91f36159e41eb852f6b799c248b55","schema_version":"1.0","event_id":"sha256:62c90b8619e413abea4a8a857fd9a1a780f91f36159e41eb852f6b799c248b55"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QB2766WDIE2OPIWXNM6YCBVIB6/bundle.json","state_url":"https://pith.science/pith/QB2766WDIE2OPIWXNM6YCBVIB6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QB2766WDIE2OPIWXNM6YCBVIB6/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":"2026-06-02T03:10:14Z","links":{"resolver":"https://pith.science/pith/QB2766WDIE2OPIWXNM6YCBVIB6","bundle":"https://pith.science/pith/QB2766WDIE2OPIWXNM6YCBVIB6/bundle.json","state":"https://pith.science/pith/QB2766WDIE2OPIWXNM6YCBVIB6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QB2766WDIE2OPIWXNM6YCBVIB6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QB2766WDIE2OPIWXNM6YCBVIB6","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":"b0c9de9907eccc8af68b77c1fc0a99c7cc07019bdf48f6f4a8d6a8bfe32c8104","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-15T18:00:00Z","title_canon_sha256":"5ceb4982ec1b4e3ac8498a02d68d6f966f6b61433a655876b7405e25187cc31b"},"schema_version":"1.0","source":{"id":"1705.05372","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05372","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05372v4","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05372","created_at":"2026-05-18T00:24:02Z"},{"alias_kind":"pith_short_12","alias_value":"QB2766WDIE2O","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"QB2766WDIE2OPIWX","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"QB2766WD","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:62c90b8619e413abea4a8a857fd9a1a780f91f36159e41eb852f6b799c248b55","target":"graph","created_at":"2026-05-18T00:24:02Z","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":"Correlated many-body problems ubiquitously appear in various fields of physics such as condensed matter physics, nuclear physics, and statistical physics. However, due to the interplay of the large number of degrees of freedom, it is generically impossible to treat these problems from first principles. Thus the construction of a proper model, namely effective Hamiltonian, is essential. Here, we propose a simple scheme of constructing Hamiltonians from given energy or entanglement spectra with machine learning. We apply the proposed scheme to the Hubbard model at the half-filling, and compare t","authors_text":"Hiroyuki Fujita, Masaki Oshikawa, Sho Sugiura, Yuya O. Nakagawa","cross_cats":["cond-mat.stat-mech","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-15T18:00:00Z","title":"Construction of Hamiltonians by supervised learning of energy and entanglement spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05372","kind":"arxiv","version":4},"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":"sha256:4037c1a6cc2521d55a18fbfb751193276fa70dd445e5c3acc01c354b55c275d6","target":"record","created_at":"2026-05-18T00:24:02Z","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":"b0c9de9907eccc8af68b77c1fc0a99c7cc07019bdf48f6f4a8d6a8bfe32c8104","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-15T18:00:00Z","title_canon_sha256":"5ceb4982ec1b4e3ac8498a02d68d6f966f6b61433a655876b7405e25187cc31b"},"schema_version":"1.0","source":{"id":"1705.05372","kind":"arxiv","version":4}},"canonical_sha256":"8075ff7ac34134e7a2d76b3d8106a80f80fa952d70e6c350cf1a295c89594bda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8075ff7ac34134e7a2d76b3d8106a80f80fa952d70e6c350cf1a295c89594bda","first_computed_at":"2026-05-18T00:24:02.373301Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:02.373301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HrT7AakaSTD3FhQzLZicoO4EPXoQQqReN+YJz+fsgPCLjSQx+y3JBD5DEaCC0BwaOSFA6AR156lbwQgwjW4oAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:02.373790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.05372","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4037c1a6cc2521d55a18fbfb751193276fa70dd445e5c3acc01c354b55c275d6","sha256:62c90b8619e413abea4a8a857fd9a1a780f91f36159e41eb852f6b799c248b55"],"state_sha256":"6801187d31f0371e137853266649e3d9a2bb0e36c4b563130d7a9a1938fe1f01"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mOvxO/hK1+xdNSncL5VFw0LFLRuFQ5fNx+zoHLSJj4uSSYi16W2m53/c/CBn1y753/X3YbduJ+r5H2gCfgwvAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:10:14.183428Z","bundle_sha256":"8ba185ab421ed05be5eec253f80f04053bfc12be8cedfb46c76bece3b710480b"}}