{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ZBJ7WTD3LFQDA5JX5PMZEWWLZD","short_pith_number":"pith:ZBJ7WTD3","canonical_record":{"source":{"id":"2008.03374","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-07T20:59:11Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"ec3088be07febe4110e3dfd4ef3b53c8c20c721ce82b3bc77c91563468346d31","abstract_canon_sha256":"a87e2651e8a12ac3eaa1b6cfa64424314fbe72680a4b095f74493d0f7fe171c4"},"schema_version":"1.0"},"canonical_sha256":"c853fb4c7b5960307537ebd9925acbc8e1cd1cbc2870ff454bb8f3dfeeae746b","source":{"kind":"arxiv","id":"2008.03374","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.03374","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"arxiv_version","alias_value":"2008.03374v2","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.03374","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_12","alias_value":"ZBJ7WTD3LFQD","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_16","alias_value":"ZBJ7WTD3LFQDA5JX","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_8","alias_value":"ZBJ7WTD3","created_at":"2026-07-05T01:32:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ZBJ7WTD3LFQDA5JX5PMZEWWLZD","target":"record","payload":{"canonical_record":{"source":{"id":"2008.03374","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-07T20:59:11Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"ec3088be07febe4110e3dfd4ef3b53c8c20c721ce82b3bc77c91563468346d31","abstract_canon_sha256":"a87e2651e8a12ac3eaa1b6cfa64424314fbe72680a4b095f74493d0f7fe171c4"},"schema_version":"1.0"},"canonical_sha256":"c853fb4c7b5960307537ebd9925acbc8e1cd1cbc2870ff454bb8f3dfeeae746b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:32:12.526529Z","signature_b64":"kYqC1fWkUfoflEuflgTnN5pmzCd2O9QIX+3dDEZfOPKRvrup7H2iUR5/e/sA/M38cSu9yqbNAN+SBwlZtVpmBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c853fb4c7b5960307537ebd9925acbc8e1cd1cbc2870ff454bb8f3dfeeae746b","last_reissued_at":"2026-07-05T01:32:12.526068Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:32:12.526068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.03374","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":"2026-07-05T01:32:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/cPeMaKk9hCV9aR8sP+M/t6sbzJEhE9lJRVSgK4QHmYCYjjyhLmlGHxlJNGeeV1E5OUxYklxcukSGODG57TMAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T02:20:05.891284Z"},"content_sha256":"2d257a524e4e632c5a4005ff8e7714c73239d1c040828729acc9103fcf5ea35f","schema_version":"1.0","event_id":"sha256:2d257a524e4e632c5a4005ff8e7714c73239d1c040828729acc9103fcf5ea35f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ZBJ7WTD3LFQDA5JX5PMZEWWLZD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accurate and numerically efficient r$^2$SCAN meta-generalized gradient approximation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"(2) Temple University, Aaron D. Kaplan (2), James W. Furness (1), Jianwei Sun (1) ((1) Tulane University, Jinliang Ning (1), John P. Perdew (2), New Orleans, Philadelphia)","submitted_at":"2020-08-07T20:59:11Z","abstract_excerpt":"The recently proposed rSCAN functional [J. Chem. Phys. 150, 161101 (2019)] is a regularized form of the SCAN functional [Phys. Rev. Lett. 115, 036402 (2015)] that improves SCAN's numerical performance at the expense of breaking constraints known from the exact exchange-correlation functional. We construct a new meta-generalized gradient approximation by restoring exact constraint adherence to rSCAN. The resulting functional maintains rSCAN's numerical performance while restoring the transferable accuracy of SCAN."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.03374","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/2008.03374/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":"2026-07-05T01:32:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"08zPMx8hIhoJGSvjtNBZOGEzn0t4EVagT6C5xGJYpd1hVjbMItRkd+w6e8wU2CYLZRyJQJNPF4qqVOt7/Q+yBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T02:20:05.892162Z"},"content_sha256":"2cce1cb5f9d001631dab955444d7925f9f10199efbada13695e0b9d87175087f","schema_version":"1.0","event_id":"sha256:2cce1cb5f9d001631dab955444d7925f9f10199efbada13695e0b9d87175087f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/bundle.json","state_url":"https://pith.science/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/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":"2026-08-17T02:20:05Z","links":{"resolver":"https://pith.science/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD","bundle":"https://pith.science/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/bundle.json","state":"https://pith.science/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZBJ7WTD3LFQDA5JX5PMZEWWLZD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ZBJ7WTD3LFQDA5JX5PMZEWWLZD","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":"a87e2651e8a12ac3eaa1b6cfa64424314fbe72680a4b095f74493d0f7fe171c4","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-07T20:59:11Z","title_canon_sha256":"ec3088be07febe4110e3dfd4ef3b53c8c20c721ce82b3bc77c91563468346d31"},"schema_version":"1.0","source":{"id":"2008.03374","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.03374","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"arxiv_version","alias_value":"2008.03374v2","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.03374","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_12","alias_value":"ZBJ7WTD3LFQD","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_16","alias_value":"ZBJ7WTD3LFQDA5JX","created_at":"2026-07-05T01:32:12Z"},{"alias_kind":"pith_short_8","alias_value":"ZBJ7WTD3","created_at":"2026-07-05T01:32:12Z"}],"graph_snapshots":[{"event_id":"sha256:2cce1cb5f9d001631dab955444d7925f9f10199efbada13695e0b9d87175087f","target":"graph","created_at":"2026-07-05T01:32:12Z","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/2008.03374/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The recently proposed rSCAN functional [J. Chem. Phys. 150, 161101 (2019)] is a regularized form of the SCAN functional [Phys. Rev. Lett. 115, 036402 (2015)] that improves SCAN's numerical performance at the expense of breaking constraints known from the exact exchange-correlation functional. We construct a new meta-generalized gradient approximation by restoring exact constraint adherence to rSCAN. The resulting functional maintains rSCAN's numerical performance while restoring the transferable accuracy of SCAN.","authors_text":"(2) Temple University, Aaron D. Kaplan (2), James W. Furness (1), Jianwei Sun (1) ((1) Tulane University, Jinliang Ning (1), John P. Perdew (2), New Orleans, Philadelphia)","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-07T20:59:11Z","title":"Accurate and numerically efficient r$^2$SCAN meta-generalized gradient approximation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.03374","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":"sha256:2d257a524e4e632c5a4005ff8e7714c73239d1c040828729acc9103fcf5ea35f","target":"record","created_at":"2026-07-05T01:32:12Z","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":"a87e2651e8a12ac3eaa1b6cfa64424314fbe72680a4b095f74493d0f7fe171c4","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-07T20:59:11Z","title_canon_sha256":"ec3088be07febe4110e3dfd4ef3b53c8c20c721ce82b3bc77c91563468346d31"},"schema_version":"1.0","source":{"id":"2008.03374","kind":"arxiv","version":2}},"canonical_sha256":"c853fb4c7b5960307537ebd9925acbc8e1cd1cbc2870ff454bb8f3dfeeae746b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c853fb4c7b5960307537ebd9925acbc8e1cd1cbc2870ff454bb8f3dfeeae746b","first_computed_at":"2026-07-05T01:32:12.526068Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:32:12.526068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kYqC1fWkUfoflEuflgTnN5pmzCd2O9QIX+3dDEZfOPKRvrup7H2iUR5/e/sA/M38cSu9yqbNAN+SBwlZtVpmBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:32:12.526529Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.03374","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d257a524e4e632c5a4005ff8e7714c73239d1c040828729acc9103fcf5ea35f","sha256:2cce1cb5f9d001631dab955444d7925f9f10199efbada13695e0b9d87175087f"],"state_sha256":"3ae3d822b77dfda5ce15c80784edadf3217b7e6a09ee71767aa6cf938b343f68"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dtbkJ6Rhv/VzrI+v3qaA1NtKYG4Y45pMa162dsjE5RRpT/TNPpW6RpQvYSoumjI/66TDKR/qLxntC/1YLd5aBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T02:20:05.908016Z","bundle_sha256":"29d5d1e4b1edde3112572614c2fb3ef3df2f37c0a72468a5406f338f47670e6e"}}