{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3L4KXQUFUJN4VSOYS66AJU5FHL","short_pith_number":"pith:3L4KXQUF","canonical_record":{"source":{"id":"1710.08301","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-10-23T14:33:19Z","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph","quant-ph"],"title_canon_sha256":"1707b017a568b86c2d785aff3142f1491e5cf469f7e91cb8f1858b4ca851cd47","abstract_canon_sha256":"b8ecbc7b85df332a7934d0e9267c4a4aa02fa63974f4afe6536befbe996d648d"},"schema_version":"1.0"},"canonical_sha256":"daf8abc285a25bcac9d897bc04d3a53ae51c2de833e13d26aaebe538601fad96","source":{"kind":"arxiv","id":"1710.08301","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08301","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08301v1","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08301","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"pith_short_12","alias_value":"3L4KXQUFUJN4","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3L4KXQUFUJN4VSOY","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3L4KXQUF","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3L4KXQUFUJN4VSOYS66AJU5FHL","target":"record","payload":{"canonical_record":{"source":{"id":"1710.08301","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-10-23T14:33:19Z","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph","quant-ph"],"title_canon_sha256":"1707b017a568b86c2d785aff3142f1491e5cf469f7e91cb8f1858b4ca851cd47","abstract_canon_sha256":"b8ecbc7b85df332a7934d0e9267c4a4aa02fa63974f4afe6536befbe996d648d"},"schema_version":"1.0"},"canonical_sha256":"daf8abc285a25bcac9d897bc04d3a53ae51c2de833e13d26aaebe538601fad96","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:16.771285Z","signature_b64":"4L3C+bH/X89X6vp59ZGcq8DQrxnmVFiZ0VuIf9Nor/P/nTIbGP95ibhuCgn5I7fpSxaGmzq03j14ARzwiOHUDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"daf8abc285a25bcac9d897bc04d3a53ae51c2de833e13d26aaebe538601fad96","last_reissued_at":"2026-05-18T00:32:16.770802Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:16.770802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.08301","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":"2026-05-18T00:32:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lz3GhOJosa3J4d/N3SapGU38GgI2FmGCshNQ94zskZyh5ROYvcKN3Hb66IY8DGMuHAo1TaQXEjYaGughfwzrDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:23:57.915947Z"},"content_sha256":"dfb42a1759906da37e23aa4e3b06c59caed5c020bf4ca060256b45cdebce5fe2","schema_version":"1.0","event_id":"sha256:dfb42a1759906da37e23aa4e3b06c59caed5c020bf4ca060256b45cdebce5fe2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3L4KXQUFUJN4VSOYS66AJU5FHL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An efficient relativistic density-matrix renormalization group implementation in a matrix-product formulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","physics.comp-ph","quant-ph"],"primary_cat":"physics.chem-ph","authors_text":"Sebastian Keller, Stefan Knecht, Stefano Battaglia","submitted_at":"2017-10-23T14:33:19Z","abstract_excerpt":"We present an implementation of the relativistic quantum-chemical density matrix renormalization group (DMRG) approach based on a matrix-product formalism. Our approach allows us to optimize matrix product state (MPS) wave functions including a variational description of scalar-relativistic effects and spin-orbit coupling from which we can calculate, for example, first-order electric and magnetic properties in a relativistic framework. While complementing our pilot implementation (S. Knecht et al., J. Chem. Phys., 140, 041101 (2014)) this work exploits all features provided by its underlying n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08301","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":"2026-05-18T00:32:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v10Q6M/RFG8RifBgpf3ci1ro914N4HBCUwxjyjS2XlIBf6LXr49umG/NnwWDkq2UF0tN5H644xDWQMCfpAxQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:23:57.916588Z"},"content_sha256":"4a7065826f4e8f32bf47c4a0c5de9101e280bcee6e3a6fc6c950703133136720","schema_version":"1.0","event_id":"sha256:4a7065826f4e8f32bf47c4a0c5de9101e280bcee6e3a6fc6c950703133136720"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/bundle.json","state_url":"https://pith.science/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/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":"2026-05-27T11:23:57Z","links":{"resolver":"https://pith.science/pith/3L4KXQUFUJN4VSOYS66AJU5FHL","bundle":"https://pith.science/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/bundle.json","state":"https://pith.science/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3L4KXQUFUJN4VSOYS66AJU5FHL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3L4KXQUFUJN4VSOYS66AJU5FHL","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":"b8ecbc7b85df332a7934d0e9267c4a4aa02fa63974f4afe6536befbe996d648d","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-10-23T14:33:19Z","title_canon_sha256":"1707b017a568b86c2d785aff3142f1491e5cf469f7e91cb8f1858b4ca851cd47"},"schema_version":"1.0","source":{"id":"1710.08301","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08301","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08301v1","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08301","created_at":"2026-05-18T00:32:16Z"},{"alias_kind":"pith_short_12","alias_value":"3L4KXQUFUJN4","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3L4KXQUFUJN4VSOY","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3L4KXQUF","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:4a7065826f4e8f32bf47c4a0c5de9101e280bcee6e3a6fc6c950703133136720","target":"graph","created_at":"2026-05-18T00:32:16Z","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 an implementation of the relativistic quantum-chemical density matrix renormalization group (DMRG) approach based on a matrix-product formalism. Our approach allows us to optimize matrix product state (MPS) wave functions including a variational description of scalar-relativistic effects and spin-orbit coupling from which we can calculate, for example, first-order electric and magnetic properties in a relativistic framework. While complementing our pilot implementation (S. Knecht et al., J. Chem. Phys., 140, 041101 (2014)) this work exploits all features provided by its underlying n","authors_text":"Sebastian Keller, Stefan Knecht, Stefano Battaglia","cross_cats":["cond-mat.str-el","physics.comp-ph","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-10-23T14:33:19Z","title":"An efficient relativistic density-matrix renormalization group implementation in a matrix-product formulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08301","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:dfb42a1759906da37e23aa4e3b06c59caed5c020bf4ca060256b45cdebce5fe2","target":"record","created_at":"2026-05-18T00:32:16Z","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":"b8ecbc7b85df332a7934d0e9267c4a4aa02fa63974f4afe6536befbe996d648d","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-10-23T14:33:19Z","title_canon_sha256":"1707b017a568b86c2d785aff3142f1491e5cf469f7e91cb8f1858b4ca851cd47"},"schema_version":"1.0","source":{"id":"1710.08301","kind":"arxiv","version":1}},"canonical_sha256":"daf8abc285a25bcac9d897bc04d3a53ae51c2de833e13d26aaebe538601fad96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daf8abc285a25bcac9d897bc04d3a53ae51c2de833e13d26aaebe538601fad96","first_computed_at":"2026-05-18T00:32:16.770802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:16.770802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4L3C+bH/X89X6vp59ZGcq8DQrxnmVFiZ0VuIf9Nor/P/nTIbGP95ibhuCgn5I7fpSxaGmzq03j14ARzwiOHUDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:16.771285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.08301","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfb42a1759906da37e23aa4e3b06c59caed5c020bf4ca060256b45cdebce5fe2","sha256:4a7065826f4e8f32bf47c4a0c5de9101e280bcee6e3a6fc6c950703133136720"],"state_sha256":"4700eb367a7972748fad352d4b59dc2582d91e948a223335f0e10b9bdeacce96"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JCZHOdkaKmNiBXnBACDHTPKR5fwRLcHHidGZZE6CRHxyMrKrCIDsfOOtguzzAif3f6SveV4oR0bALc/Lkx/4AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T11:23:57.920219Z","bundle_sha256":"ed1b6f320767c689e680d11f8c9d3d03b5b800d23a11072681f6337f1da89c9a"}}