{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6QMDKHKS6UI27SFYCIO2B5PY76","short_pith_number":"pith:6QMDKHKS","canonical_record":{"source":{"id":"1808.06070","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-18T10:57:07Z","cross_cats_sorted":[],"title_canon_sha256":"bfb23c754e1ce8e36d74155b93294feffe600b7b760a209d22405f2802540688","abstract_canon_sha256":"9a9d5a6fa720f45fa25b95d068c60caada0cb25277675231ea164e4522cf1804"},"schema_version":"1.0"},"canonical_sha256":"f418351d52f511afc8b8121da0f5f8ff98bbafbaeaf3eafd704b9468c0e2b47d","source":{"kind":"arxiv","id":"1808.06070","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06070","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06070v2","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06070","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"pith_short_12","alias_value":"6QMDKHKS6UI2","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6QMDKHKS6UI27SFY","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6QMDKHKS","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6QMDKHKS6UI27SFYCIO2B5PY76","target":"record","payload":{"canonical_record":{"source":{"id":"1808.06070","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-18T10:57:07Z","cross_cats_sorted":[],"title_canon_sha256":"bfb23c754e1ce8e36d74155b93294feffe600b7b760a209d22405f2802540688","abstract_canon_sha256":"9a9d5a6fa720f45fa25b95d068c60caada0cb25277675231ea164e4522cf1804"},"schema_version":"1.0"},"canonical_sha256":"f418351d52f511afc8b8121da0f5f8ff98bbafbaeaf3eafd704b9468c0e2b47d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:39.668303Z","signature_b64":"hawCVedBv4+zPfkouvIRz8qSUbvAY0mOOwWp9ZSifQ9NYRlxTNL3bxJAVfft4cBC5Z8A3tL4Ku2xLPTCFnyGBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f418351d52f511afc8b8121da0f5f8ff98bbafbaeaf3eafd704b9468c0e2b47d","last_reissued_at":"2026-05-18T00:07:39.667640Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:39.667640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.06070","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:07:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U/KWnmcfgv0NgGHiFdQy9+l5b7MXJ+KkSo+aTd9urpRpvovSid3/90I0x89yYvoPgEkXeTdgFW9txmhBXk4WDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:06:49.135363Z"},"content_sha256":"4417c16c3077b8b5359134f55d756ce2daf2272dbd852aa0a551af510f4fec54","schema_version":"1.0","event_id":"sha256:4417c16c3077b8b5359134f55d756ce2daf2272dbd852aa0a551af510f4fec54"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6QMDKHKS6UI27SFYCIO2B5PY76","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The dynamic electron-correlation energy in the NOF-MP2 method from the orbital-invariant perturbation theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Mario Piris","submitted_at":"2018-08-18T10:57:07Z","abstract_excerpt":"The original formulation (Phys. Rev. Lett. 119, 063002, 2017) of the natural orbital functional - second-order M{\\o}ller-Plesset (NOF-MP2) method is based on the MP2 that uses the canonical Hartree-Fock molecular orbitals. The current work presents a reformulation of the dynamic energy correction based on the orbital-invariant MP2, which allows to attain both dynamic and static correlations even for those systems with strong orbital localizability and significant multiconfigurational character. To improve the reference Slater determinant formed with natural orbitals, the natural orbital functi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06070","kind":"arxiv","version":2},"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":"2026-05-18T00:07:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2UAZJw/raeL5hgmThJaeR3y25BFQreeXlzvlsChpybiRaYyNRMorOne5C+KimJjdsUBoElOD6OFD4W3ePuWhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:06:49.135807Z"},"content_sha256":"425367f4ad60be1b7d46bf7bf07033d61ce812eaf19d0bd2474734470d5f1f21","schema_version":"1.0","event_id":"sha256:425367f4ad60be1b7d46bf7bf07033d61ce812eaf19d0bd2474734470d5f1f21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QMDKHKS6UI27SFYCIO2B5PY76/bundle.json","state_url":"https://pith.science/pith/6QMDKHKS6UI27SFYCIO2B5PY76/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QMDKHKS6UI27SFYCIO2B5PY76/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":"2026-06-06T14:06:49Z","links":{"resolver":"https://pith.science/pith/6QMDKHKS6UI27SFYCIO2B5PY76","bundle":"https://pith.science/pith/6QMDKHKS6UI27SFYCIO2B5PY76/bundle.json","state":"https://pith.science/pith/6QMDKHKS6UI27SFYCIO2B5PY76/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QMDKHKS6UI27SFYCIO2B5PY76/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6QMDKHKS6UI27SFYCIO2B5PY76","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":"9a9d5a6fa720f45fa25b95d068c60caada0cb25277675231ea164e4522cf1804","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-18T10:57:07Z","title_canon_sha256":"bfb23c754e1ce8e36d74155b93294feffe600b7b760a209d22405f2802540688"},"schema_version":"1.0","source":{"id":"1808.06070","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06070","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06070v2","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06070","created_at":"2026-05-18T00:07:39Z"},{"alias_kind":"pith_short_12","alias_value":"6QMDKHKS6UI2","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6QMDKHKS6UI27SFY","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6QMDKHKS","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:425367f4ad60be1b7d46bf7bf07033d61ce812eaf19d0bd2474734470d5f1f21","target":"graph","created_at":"2026-05-18T00:07:39Z","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":"The original formulation (Phys. Rev. Lett. 119, 063002, 2017) of the natural orbital functional - second-order M{\\o}ller-Plesset (NOF-MP2) method is based on the MP2 that uses the canonical Hartree-Fock molecular orbitals. The current work presents a reformulation of the dynamic energy correction based on the orbital-invariant MP2, which allows to attain both dynamic and static correlations even for those systems with strong orbital localizability and significant multiconfigurational character. To improve the reference Slater determinant formed with natural orbitals, the natural orbital functi","authors_text":"Mario Piris","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-18T10:57:07Z","title":"The dynamic electron-correlation energy in the NOF-MP2 method from the orbital-invariant perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06070","kind":"arxiv","version":2},"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":"sha256:4417c16c3077b8b5359134f55d756ce2daf2272dbd852aa0a551af510f4fec54","target":"record","created_at":"2026-05-18T00:07:39Z","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":"9a9d5a6fa720f45fa25b95d068c60caada0cb25277675231ea164e4522cf1804","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-18T10:57:07Z","title_canon_sha256":"bfb23c754e1ce8e36d74155b93294feffe600b7b760a209d22405f2802540688"},"schema_version":"1.0","source":{"id":"1808.06070","kind":"arxiv","version":2}},"canonical_sha256":"f418351d52f511afc8b8121da0f5f8ff98bbafbaeaf3eafd704b9468c0e2b47d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f418351d52f511afc8b8121da0f5f8ff98bbafbaeaf3eafd704b9468c0e2b47d","first_computed_at":"2026-05-18T00:07:39.667640Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:39.667640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hawCVedBv4+zPfkouvIRz8qSUbvAY0mOOwWp9ZSifQ9NYRlxTNL3bxJAVfft4cBC5Z8A3tL4Ku2xLPTCFnyGBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:39.668303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.06070","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4417c16c3077b8b5359134f55d756ce2daf2272dbd852aa0a551af510f4fec54","sha256:425367f4ad60be1b7d46bf7bf07033d61ce812eaf19d0bd2474734470d5f1f21"],"state_sha256":"706aeef082f7f85531a1467d076a3d6c3cad31ead666d76556a3a825263bf567"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xxcI/cCXKBcioJ2kFuUU7XDqVLamQRQjDTqvUD41KVSlMOBDcsopTAcRTf9TzSPLQ8c8D6gbjafYtQUDZ+CsBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T14:06:49.139546Z","bundle_sha256":"3d340bb13f99a1a364795314656f9e331027bfc727babfb5aa515c76af4f5571"}}