{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ULBPTNLIK22QJ3JZY3VRQGGWVL","short_pith_number":"pith:ULBPTNLI","canonical_record":{"source":{"id":"2602.04172","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-02-04T03:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"7b6cf89eb786da042203570f8240b4e343a28f45989b2aa33b2cda8656f7c70d","abstract_canon_sha256":"1a516f14fb2596fc3ea1ca4b922e9bb4f9f09b915a4618501a60a4c988d96e3a"},"schema_version":"1.0"},"canonical_sha256":"a2c2f9b56856b504ed39c6eb1818d6aaf98456d6c2d46d492c0285347206f801","source":{"kind":"arxiv","id":"2602.04172","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.04172","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"2602.04172v4","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.04172","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"ULBPTNLIK22Q","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_16","alias_value":"ULBPTNLIK22QJ3JZ","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_8","alias_value":"ULBPTNLI","created_at":"2026-05-22T01:03:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ULBPTNLIK22QJ3JZY3VRQGGWVL","target":"record","payload":{"canonical_record":{"source":{"id":"2602.04172","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-02-04T03:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"7b6cf89eb786da042203570f8240b4e343a28f45989b2aa33b2cda8656f7c70d","abstract_canon_sha256":"1a516f14fb2596fc3ea1ca4b922e9bb4f9f09b915a4618501a60a4c988d96e3a"},"schema_version":"1.0"},"canonical_sha256":"a2c2f9b56856b504ed39c6eb1818d6aaf98456d6c2d46d492c0285347206f801","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:03:17.827436Z","signature_b64":"7ZnTT5AQUmmtA/Yv8hpoLJ9NKJ3kdYcSVhGjqCwwnjYQE8Ou/9hVIvIA9/Kt0+N9Db/U9mOttvo7aw0q/tfCCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2c2f9b56856b504ed39c6eb1818d6aaf98456d6c2d46d492c0285347206f801","last_reissued_at":"2026-05-22T01:03:17.826611Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:03:17.826611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.04172","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-22T01:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HMSRnBunK5jv7I4knmLdSrJMvK2r7w8ZB0bPp4vGB9o7/ywwu9OEi1f4gktHBJU4ebJbcD34+i+6/myDk/EPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:54:23.763913Z"},"content_sha256":"7c0d2e17c52db77a72544517fe00f4af8d52c316b10162ab4f798cbc1b756119","schema_version":"1.0","event_id":"sha256:7c0d2e17c52db77a72544517fe00f4af8d52c316b10162ab4f798cbc1b756119"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ULBPTNLIK22QJ3JZY3VRQGGWVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Consistent GMTKN55 and molecular-crystal accuracy using minimally empirical DFT with XDM(Z) dispersion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Erin R. Johnson, Kyle R. Bryenton","submitted_at":"2026-02-04T03:15:22Z","abstract_excerpt":"Density-functional theory (DFT) has become the workhorse of modern computational chemistry, with dispersion corrections such as the exchange-hole dipole moment (XDM) model playing a key role in high-accuracy modelling of large-scale systems. All previous production implementations of XDM have used the two-parameter Becke--Johnson damping function based on atomic radii. Here, we introduce and implement a new XDM variant that uses a one-parameter damping function based on atomic numbers, recently proposed by Becke. Both this new Z damping and the canonical BJ-damping variants of XDM are benchmar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.04172","kind":"arxiv","version":4},"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/2602.04172/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":"2026-05-22T01:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yeCz24ePTCuNI9bnJgaedfJqGVoASvAoxa/VY3k/MUGNgrbnwOVW9TwFWmMqUzSTwrOCvQo5mqLeXdPqEvcFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:54:23.764303Z"},"content_sha256":"7f5d9bc2eb901849c7577c6988926e88733bf8703c420561574e186e935630e2","schema_version":"1.0","event_id":"sha256:7f5d9bc2eb901849c7577c6988926e88733bf8703c420561574e186e935630e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/bundle.json","state_url":"https://pith.science/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/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":"2026-06-01T05:54:23Z","links":{"resolver":"https://pith.science/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL","bundle":"https://pith.science/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/bundle.json","state":"https://pith.science/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ULBPTNLIK22QJ3JZY3VRQGGWVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ULBPTNLIK22QJ3JZY3VRQGGWVL","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":"1a516f14fb2596fc3ea1ca4b922e9bb4f9f09b915a4618501a60a4c988d96e3a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-02-04T03:15:22Z","title_canon_sha256":"7b6cf89eb786da042203570f8240b4e343a28f45989b2aa33b2cda8656f7c70d"},"schema_version":"1.0","source":{"id":"2602.04172","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.04172","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"2602.04172v4","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.04172","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"ULBPTNLIK22Q","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_16","alias_value":"ULBPTNLIK22QJ3JZ","created_at":"2026-05-22T01:03:17Z"},{"alias_kind":"pith_short_8","alias_value":"ULBPTNLI","created_at":"2026-05-22T01:03:17Z"}],"graph_snapshots":[{"event_id":"sha256:7f5d9bc2eb901849c7577c6988926e88733bf8703c420561574e186e935630e2","target":"graph","created_at":"2026-05-22T01:03:17Z","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/2602.04172/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Density-functional theory (DFT) has become the workhorse of modern computational chemistry, with dispersion corrections such as the exchange-hole dipole moment (XDM) model playing a key role in high-accuracy modelling of large-scale systems. All previous production implementations of XDM have used the two-parameter Becke--Johnson damping function based on atomic radii. Here, we introduce and implement a new XDM variant that uses a one-parameter damping function based on atomic numbers, recently proposed by Becke. Both this new Z damping and the canonical BJ-damping variants of XDM are benchmar","authors_text":"Erin R. Johnson, Kyle R. Bryenton","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-02-04T03:15:22Z","title":"Consistent GMTKN55 and molecular-crystal accuracy using minimally empirical DFT with XDM(Z) dispersion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.04172","kind":"arxiv","version":4},"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":"sha256:7c0d2e17c52db77a72544517fe00f4af8d52c316b10162ab4f798cbc1b756119","target":"record","created_at":"2026-05-22T01:03:17Z","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":"1a516f14fb2596fc3ea1ca4b922e9bb4f9f09b915a4618501a60a4c988d96e3a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-02-04T03:15:22Z","title_canon_sha256":"7b6cf89eb786da042203570f8240b4e343a28f45989b2aa33b2cda8656f7c70d"},"schema_version":"1.0","source":{"id":"2602.04172","kind":"arxiv","version":4}},"canonical_sha256":"a2c2f9b56856b504ed39c6eb1818d6aaf98456d6c2d46d492c0285347206f801","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2c2f9b56856b504ed39c6eb1818d6aaf98456d6c2d46d492c0285347206f801","first_computed_at":"2026-05-22T01:03:17.826611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:17.826611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7ZnTT5AQUmmtA/Yv8hpoLJ9NKJ3kdYcSVhGjqCwwnjYQE8Ou/9hVIvIA9/Kt0+N9Db/U9mOttvo7aw0q/tfCCg==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:17.827436Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.04172","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c0d2e17c52db77a72544517fe00f4af8d52c316b10162ab4f798cbc1b756119","sha256:7f5d9bc2eb901849c7577c6988926e88733bf8703c420561574e186e935630e2"],"state_sha256":"3646d1028d07df492ad954e9fafa908c8481ef183dba381dd1c5e787294028fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BPfESpJuGQEP7xxr4sBf5fv03UN9JSyZnHDD9PvE26Ui9Hkxz1jBLvWBG5X9ONmGOdqrKHJoqaamZILuHusGCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:54:23.766740Z","bundle_sha256":"7d7e1f9ea8c5328001c132bb851c651f2935f8195567f7ba02577f5c4f3e44dc"}}