{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UVQYPFZDQJWILTXGSISLXJBNDD","short_pith_number":"pith:UVQYPFZD","canonical_record":{"source":{"id":"1807.06688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-17T22:15:09Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9e8d272e5f755a3b1249f24b396e3a5f8ff1e4cf4a10a15b39796eecc99406ee","abstract_canon_sha256":"f64fc99fefa559c5c2dd64def2d89f23109bcedef661f760791156f07b5a8dbc"},"schema_version":"1.0"},"canonical_sha256":"a561879723826c85cee69224bba42d18df831a7696b90091df8968f722576a9e","source":{"kind":"arxiv","id":"1807.06688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.06688","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"arxiv_version","alias_value":"1807.06688v1","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.06688","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"pith_short_12","alias_value":"UVQYPFZDQJWI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UVQYPFZDQJWILTXG","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UVQYPFZD","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UVQYPFZDQJWILTXGSISLXJBNDD","target":"record","payload":{"canonical_record":{"source":{"id":"1807.06688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-17T22:15:09Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9e8d272e5f755a3b1249f24b396e3a5f8ff1e4cf4a10a15b39796eecc99406ee","abstract_canon_sha256":"f64fc99fefa559c5c2dd64def2d89f23109bcedef661f760791156f07b5a8dbc"},"schema_version":"1.0"},"canonical_sha256":"a561879723826c85cee69224bba42d18df831a7696b90091df8968f722576a9e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:27.155773Z","signature_b64":"orq0erHvJ6EbEj7iarpKTGvVGzM7HVxEhwtg4JjQXk1fzOLogrK+N4RxMYXI5Lv/uMyLDYq+RmSi70+2W1oiBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a561879723826c85cee69224bba42d18df831a7696b90091df8968f722576a9e","last_reissued_at":"2026-05-18T00:10:27.155025Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:27.155025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.06688","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":"2026-05-18T00:10:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nJRxnGuJLsH9F8TEV2qppbNPAXZiDmEaj5x5vXeLRpq4ZNqZcOU/KPqBQ8E9iHPwNWf0so/Rxf0E97EeW1nHDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:29:40.325134Z"},"content_sha256":"35842e500d8814a95119447a27ee243435616b3aec9e40263a3519074de3066e","schema_version":"1.0","event_id":"sha256:35842e500d8814a95119447a27ee243435616b3aec9e40263a3519074de3066e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UVQYPFZDQJWILTXGSISLXJBNDD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ab Initio Electronic Structure Calculations by Auxiliary-Field Quantum Monte Carlo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Shiwei Zhang","submitted_at":"2018-07-17T22:15:09Z","abstract_excerpt":"The auxiliary-field quantum Monte Carlo (AFQMC) method provides a computational framework for solving the time-independent Schroedinger equation in atoms, molecules, solids, and a variety of model systems by stochastic sampling. We introduce the theory and formalism behind this framework, briefly discuss the key technical steps that turn it into an effective and practical computational method, present several illustrative results, and conclude with comments on the prospects of ab initio computation by this framework."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.06688","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":"2026-05-18T00:10:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JM0Rvdmxo+V37F52vRYSfi4wZGL9KX8kR7X+H//u2JGhfdmUVdqWxWAwfVt7lFfLw2Pc/D3v+Q7QI1kZiNt/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:29:40.325904Z"},"content_sha256":"98d3c1c1e2297661600072d3f310eb02a99ef242680a842d19e5f82c7108979b","schema_version":"1.0","event_id":"sha256:98d3c1c1e2297661600072d3f310eb02a99ef242680a842d19e5f82c7108979b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UVQYPFZDQJWILTXGSISLXJBNDD/bundle.json","state_url":"https://pith.science/pith/UVQYPFZDQJWILTXGSISLXJBNDD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UVQYPFZDQJWILTXGSISLXJBNDD/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":"2026-05-30T01:29:40Z","links":{"resolver":"https://pith.science/pith/UVQYPFZDQJWILTXGSISLXJBNDD","bundle":"https://pith.science/pith/UVQYPFZDQJWILTXGSISLXJBNDD/bundle.json","state":"https://pith.science/pith/UVQYPFZDQJWILTXGSISLXJBNDD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UVQYPFZDQJWILTXGSISLXJBNDD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UVQYPFZDQJWILTXGSISLXJBNDD","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":"f64fc99fefa559c5c2dd64def2d89f23109bcedef661f760791156f07b5a8dbc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-17T22:15:09Z","title_canon_sha256":"9e8d272e5f755a3b1249f24b396e3a5f8ff1e4cf4a10a15b39796eecc99406ee"},"schema_version":"1.0","source":{"id":"1807.06688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.06688","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"arxiv_version","alias_value":"1807.06688v1","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.06688","created_at":"2026-05-18T00:10:27Z"},{"alias_kind":"pith_short_12","alias_value":"UVQYPFZDQJWI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UVQYPFZDQJWILTXG","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UVQYPFZD","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:98d3c1c1e2297661600072d3f310eb02a99ef242680a842d19e5f82c7108979b","target":"graph","created_at":"2026-05-18T00:10:27Z","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 auxiliary-field quantum Monte Carlo (AFQMC) method provides a computational framework for solving the time-independent Schroedinger equation in atoms, molecules, solids, and a variety of model systems by stochastic sampling. We introduce the theory and formalism behind this framework, briefly discuss the key technical steps that turn it into an effective and practical computational method, present several illustrative results, and conclude with comments on the prospects of ab initio computation by this framework.","authors_text":"Shiwei Zhang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-17T22:15:09Z","title":"Ab Initio Electronic Structure Calculations by Auxiliary-Field Quantum Monte Carlo"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.06688","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":"sha256:35842e500d8814a95119447a27ee243435616b3aec9e40263a3519074de3066e","target":"record","created_at":"2026-05-18T00:10:27Z","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":"f64fc99fefa559c5c2dd64def2d89f23109bcedef661f760791156f07b5a8dbc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-17T22:15:09Z","title_canon_sha256":"9e8d272e5f755a3b1249f24b396e3a5f8ff1e4cf4a10a15b39796eecc99406ee"},"schema_version":"1.0","source":{"id":"1807.06688","kind":"arxiv","version":1}},"canonical_sha256":"a561879723826c85cee69224bba42d18df831a7696b90091df8968f722576a9e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a561879723826c85cee69224bba42d18df831a7696b90091df8968f722576a9e","first_computed_at":"2026-05-18T00:10:27.155025Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:27.155025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"orq0erHvJ6EbEj7iarpKTGvVGzM7HVxEhwtg4JjQXk1fzOLogrK+N4RxMYXI5Lv/uMyLDYq+RmSi70+2W1oiBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:27.155773Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.06688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35842e500d8814a95119447a27ee243435616b3aec9e40263a3519074de3066e","sha256:98d3c1c1e2297661600072d3f310eb02a99ef242680a842d19e5f82c7108979b"],"state_sha256":"98b1acfdc2ed8cbbc03b29941ba8e8f5f68caaea344b2e42d28c160d0c373ec6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XdpNDB8lk+kqEvx+8y+Xyxw7Tl/yGl4FKlcV4im0+FrrIDA/XuYZypA/Lt44UoT78+M86f65shpX4vlyAe7HDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:29:40.329748Z","bundle_sha256":"c0c973b9ddb150458a179161e3503fb6d7faa09b52003e04dd14410e8293940e"}}