{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LBNTSIOHGPDLHFZIDNZI4N2CBZ","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":"a6008fc337790eb5e9b41a9a30afff1dab982d1112b311056dce1a6bba3ad950","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-12-16T15:48:09Z","title_canon_sha256":"c2d213c66ad2913523333ed619b85a24c52f2d0e96871197dce0c0f29e1c312e"},"schema_version":"1.0","source":{"id":"1512.05218","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.05218","created_at":"2026-05-18T01:18:39Z"},{"alias_kind":"arxiv_version","alias_value":"1512.05218v1","created_at":"2026-05-18T01:18:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.05218","created_at":"2026-05-18T01:18:39Z"},{"alias_kind":"pith_short_12","alias_value":"LBNTSIOHGPDL","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LBNTSIOHGPDLHFZI","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LBNTSIOH","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:e9b8e175154290b7876e2bfe02da50ececcb75370462e28c57d185c568c8fad2","target":"graph","created_at":"2026-05-18T01:18:39Z","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":"Renormalization is a powerful concept in the many-body problem. Inspired by the highly successful density matrix renormalization group (DMRG) algorithm, and the quantum chemical graphical representation of configuration space, we introduce a new theoretical tool: Hilbert space renormalization, to describe many-electron correlations. While in DMRG, the many-body states in nested Fock subspaces are successively renormalized, in Hilbert space renormalization, many-body states in nested Hilbert subspaces undergo renormalization. This provides a new way to classify and combine configurations. The u","authors_text":"Garnet Kin-Lic Chan, Zhendong Li","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-12-16T15:48:09Z","title":"Hilbert space renormalization for the many-electron problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.05218","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":"sha256:1311f805cf4233a9ce57e21cfe37eff55db0f3d58dc4247010d86d128406e73d","target":"record","created_at":"2026-05-18T01:18:39Z","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":"a6008fc337790eb5e9b41a9a30afff1dab982d1112b311056dce1a6bba3ad950","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-12-16T15:48:09Z","title_canon_sha256":"c2d213c66ad2913523333ed619b85a24c52f2d0e96871197dce0c0f29e1c312e"},"schema_version":"1.0","source":{"id":"1512.05218","kind":"arxiv","version":1}},"canonical_sha256":"585b3921c733c6b397281b728e37420e731b79acabc06e5341f3024d3c06b062","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"585b3921c733c6b397281b728e37420e731b79acabc06e5341f3024d3c06b062","first_computed_at":"2026-05-18T01:18:39.038909Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:39.038909Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u04HbQ+6n623aJdkky0mvHXCERX/OTaerBBunTiXDxsnNiYegWANAN2UYAArQHTrIIcmezrgaqAfBIvdGQwBBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:39.039409Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.05218","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1311f805cf4233a9ce57e21cfe37eff55db0f3d58dc4247010d86d128406e73d","sha256:e9b8e175154290b7876e2bfe02da50ececcb75370462e28c57d185c568c8fad2"],"state_sha256":"a65929aef4bd0759402cdef6551ba6716e651863ca95ac39a3dfa8d4fe99b131"}