{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:TAH3WJIKGMODSP6GDYCKNBM2ZX","short_pith_number":"pith:TAH3WJIK","canonical_record":{"source":{"id":"2002.12531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-02-28T03:54:04Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"63c1f6f7b0eb3cd240d266ce8bfef8fda5ecdb997e8eac9adf1169eacc50856e","abstract_canon_sha256":"64428a9042d4f523eb2f639e30ecc8f5551dea1629b6a9b0dac4e6c8296dde9d"},"schema_version":"1.0"},"canonical_sha256":"980fbb250a331c393fc61e04a6859acde7f5a60925d812461b8abd4560032afc","source":{"kind":"arxiv","id":"2002.12531","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.12531","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"arxiv_version","alias_value":"2002.12531v2","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.12531","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_12","alias_value":"TAH3WJIKGMOD","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_16","alias_value":"TAH3WJIKGMODSP6G","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_8","alias_value":"TAH3WJIK","created_at":"2026-07-05T03:42:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:TAH3WJIKGMODSP6GDYCKNBM2ZX","target":"record","payload":{"canonical_record":{"source":{"id":"2002.12531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-02-28T03:54:04Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"63c1f6f7b0eb3cd240d266ce8bfef8fda5ecdb997e8eac9adf1169eacc50856e","abstract_canon_sha256":"64428a9042d4f523eb2f639e30ecc8f5551dea1629b6a9b0dac4e6c8296dde9d"},"schema_version":"1.0"},"canonical_sha256":"980fbb250a331c393fc61e04a6859acde7f5a60925d812461b8abd4560032afc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:42:37.086624Z","signature_b64":"9I2PEn97uYQ3kZB/msT56jg7ODxs6dA7gMo0uY1it9ENnSU70HM0g5Unr5OWvMwL9XjQhPZjXmY1EtnNjqFzCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"980fbb250a331c393fc61e04a6859acde7f5a60925d812461b8abd4560032afc","last_reissued_at":"2026-07-05T03:42:37.086205Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:42:37.086205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.12531","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":"2026-07-05T03:42:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zfsEzR6rz0zjGUFe62xg+qP23HIrqqUTJtUi3xe5LCFD5V+/ZHWZyOzMW+RrFlrPyjk06WfWPcNpns5DnNa9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:25:41.398695Z"},"content_sha256":"cf9c057e1f5e7e91834f3232135a2f4c225974a41b6cf849773f9582eeae20d5","schema_version":"1.0","event_id":"sha256:cf9c057e1f5e7e91834f3232135a2f4c225974a41b6cf849773f9582eeae20d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:TAH3WJIKGMODSP6GDYCKNBM2ZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recent developments in the PySCF program package","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.chem-ph","authors_text":"Alec White, Alexander Sokolov, Artem Pulkin, Bastien Mussard, Chong Sun, Elvira Sayfutyarova, Enrico Ronca, Garnet Kin-Lic Chan, George H. Booth, Henry F. Schurkus, Hung Q. Pham, James Daniel Whitfield, James D. McClain, James E. T. Smith, Jan Hermann, Janus Juul Eriksen, Jason M. Yu, Jia Chen, Jun Yang, Junzi Liu, Kevin Koh, Lucas K. Wagner, Marc Barbry, Mario Motta, Mark J. Williamson, Matthew R. Hermes, Maximilian Scheurer, Narbe Mardirossian, Nick S. Blunt, Nikolay A. Bogdanov, Paul J. Robinson, Peng Bao, Peter Koval, Qiming Sun, Samragni Banerjee, Sandeep Sharma, Sebastian Wouters, Sheng Guo, Shi-Ning Sun, Shiv Upadhyay, Susi Lehtola, Tianyu Zhu, Timothy C. Berkelbach, Wirawan Purwanto, Xiao Wang, Xing Zhang, Yang Gao, Zhendong Li, Zhi-Hao Cui","submitted_at":"2020-02-28T03:54:04Z","abstract_excerpt":"PYSCF is a Python-based general-purpose electronic structure platform that both supports first-principles simulations of molecules and solids, as well as accelerates the development of new methodology and complex computational workflows. The present paper explains the design and philosophy behind PYSCF that enables it to meet these twin objectives. With several case studies, we show how users can easily implement their own methods using PYSCF as a development environment. We then summarize the capabilities of PYSCF for molecular and solid-state simulations. Finally, we describe the growing eco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.12531","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2002.12531/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:42:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fnq1Tll6sHi59Dtb23PFowSOLHsgi+tfoGsEY1ynYH3lpCIgKpiyKeBYrk4kbXYnVDCratyPP+oAgIaZtXA9Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:25:41.399071Z"},"content_sha256":"05bdce083f7cf8322419283055a2e2d8a92b1c72942b28789cac349b529e0428","schema_version":"1.0","event_id":"sha256:05bdce083f7cf8322419283055a2e2d8a92b1c72942b28789cac349b529e0428"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/bundle.json","state_url":"https://pith.science/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/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":"2026-07-07T10:25:41Z","links":{"resolver":"https://pith.science/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX","bundle":"https://pith.science/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/bundle.json","state":"https://pith.science/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TAH3WJIKGMODSP6GDYCKNBM2ZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:TAH3WJIKGMODSP6GDYCKNBM2ZX","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":"64428a9042d4f523eb2f639e30ecc8f5551dea1629b6a9b0dac4e6c8296dde9d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-02-28T03:54:04Z","title_canon_sha256":"63c1f6f7b0eb3cd240d266ce8bfef8fda5ecdb997e8eac9adf1169eacc50856e"},"schema_version":"1.0","source":{"id":"2002.12531","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.12531","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"arxiv_version","alias_value":"2002.12531v2","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.12531","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_12","alias_value":"TAH3WJIKGMOD","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_16","alias_value":"TAH3WJIKGMODSP6G","created_at":"2026-07-05T03:42:37Z"},{"alias_kind":"pith_short_8","alias_value":"TAH3WJIK","created_at":"2026-07-05T03:42:37Z"}],"graph_snapshots":[{"event_id":"sha256:05bdce083f7cf8322419283055a2e2d8a92b1c72942b28789cac349b529e0428","target":"graph","created_at":"2026-07-05T03:42:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2002.12531/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"PYSCF is a Python-based general-purpose electronic structure platform that both supports first-principles simulations of molecules and solids, as well as accelerates the development of new methodology and complex computational workflows. The present paper explains the design and philosophy behind PYSCF that enables it to meet these twin objectives. With several case studies, we show how users can easily implement their own methods using PYSCF as a development environment. We then summarize the capabilities of PYSCF for molecular and solid-state simulations. Finally, we describe the growing eco","authors_text":"Alec White, Alexander Sokolov, Artem Pulkin, Bastien Mussard, Chong Sun, Elvira Sayfutyarova, Enrico Ronca, Garnet Kin-Lic Chan, George H. Booth, Henry F. Schurkus, Hung Q. Pham, James Daniel Whitfield, James D. McClain, James E. T. Smith, Jan Hermann, Janus Juul Eriksen, Jason M. Yu, Jia Chen, Jun Yang, Junzi Liu, Kevin Koh, Lucas K. Wagner, Marc Barbry, Mario Motta, Mark J. Williamson, Matthew R. Hermes, Maximilian Scheurer, Narbe Mardirossian, Nick S. Blunt, Nikolay A. Bogdanov, Paul J. Robinson, Peng Bao, Peter Koval, Qiming Sun, Samragni Banerjee, Sandeep Sharma, Sebastian Wouters, Sheng Guo, Shi-Ning Sun, Shiv Upadhyay, Susi Lehtola, Tianyu Zhu, Timothy C. Berkelbach, Wirawan Purwanto, Xiao Wang, Xing Zhang, Yang Gao, Zhendong Li, Zhi-Hao Cui","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-02-28T03:54:04Z","title":"Recent developments in the PySCF program package"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.12531","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:cf9c057e1f5e7e91834f3232135a2f4c225974a41b6cf849773f9582eeae20d5","target":"record","created_at":"2026-07-05T03:42:37Z","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":"64428a9042d4f523eb2f639e30ecc8f5551dea1629b6a9b0dac4e6c8296dde9d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-02-28T03:54:04Z","title_canon_sha256":"63c1f6f7b0eb3cd240d266ce8bfef8fda5ecdb997e8eac9adf1169eacc50856e"},"schema_version":"1.0","source":{"id":"2002.12531","kind":"arxiv","version":2}},"canonical_sha256":"980fbb250a331c393fc61e04a6859acde7f5a60925d812461b8abd4560032afc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"980fbb250a331c393fc61e04a6859acde7f5a60925d812461b8abd4560032afc","first_computed_at":"2026-07-05T03:42:37.086205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:42:37.086205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9I2PEn97uYQ3kZB/msT56jg7ODxs6dA7gMo0uY1it9ENnSU70HM0g5Unr5OWvMwL9XjQhPZjXmY1EtnNjqFzCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:42:37.086624Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.12531","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf9c057e1f5e7e91834f3232135a2f4c225974a41b6cf849773f9582eeae20d5","sha256:05bdce083f7cf8322419283055a2e2d8a92b1c72942b28789cac349b529e0428"],"state_sha256":"8f0d173d2d3cdc96774f53defa9377fec92e53887fd1ad2a761a54711c82dc89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qaLGJzJf2I6vhMIxMKvW2nimLV/pynhwfM/PUiXb0cW+gyMIH3eiOE6FT+4oGqTkZRz9vBh3OYF2oWZI40C1CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:25:41.401001Z","bundle_sha256":"68b1bf0ebb22cd2c43c524ca5f0b5a336761163500e5d5622bf291d4df7caed4"}}