{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:V2GWWKIZ2VOTWE5GPHI5B72OXH","short_pith_number":"pith:V2GWWKIZ","canonical_record":{"source":{"id":"cond-mat/0410564","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2004-10-21T21:46:19Z","cross_cats_sorted":[],"title_canon_sha256":"0abd1a9e4d0c7e9d5cd1d1babf77429fa867cd1a597f936168716a2c133318eb","abstract_canon_sha256":"f9f138cf558b3ba849e4c1d7e0109622e5d55faf6aeaffff3bdfdf894a794847"},"schema_version":"1.0"},"canonical_sha256":"ae8d6b2919d55d3b13a679d1d0ff4eb9f8ccd89eaf1e75aa1db9042c472783f3","source":{"kind":"arxiv","id":"cond-mat/0410564","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0410564","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0410564v1","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0410564","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"V2GWWKIZ2VOT","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_16","alias_value":"V2GWWKIZ2VOTWE5G","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_8","alias_value":"V2GWWKIZ","created_at":"2026-07-04T16:47:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:V2GWWKIZ2VOTWE5GPHI5B72OXH","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0410564","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2004-10-21T21:46:19Z","cross_cats_sorted":[],"title_canon_sha256":"0abd1a9e4d0c7e9d5cd1d1babf77429fa867cd1a597f936168716a2c133318eb","abstract_canon_sha256":"f9f138cf558b3ba849e4c1d7e0109622e5d55faf6aeaffff3bdfdf894a794847"},"schema_version":"1.0"},"canonical_sha256":"ae8d6b2919d55d3b13a679d1d0ff4eb9f8ccd89eaf1e75aa1db9042c472783f3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:47:13.818096Z","signature_b64":"hahJmf4WRcA0Ywbb64ZhC/JjTQBrmEQ+uvw3M1Cgo8zbgKEVXH0i+fYT1oi2wrXIqgJFu+sK5wOlgiAKlOisCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae8d6b2919d55d3b13a679d1d0ff4eb9f8ccd89eaf1e75aa1db9042c472783f3","last_reissued_at":"2026-07-04T16:47:13.817715Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:47:13.817715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0410564","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":"2026-07-04T16:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9I95dsAP+Suhc33kam8011vAjw4uzPR7NwvUaeOOu1AJXwlNez1cf0Qi+DVrw8xLFn7lD0SjBc2K8aGIponZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:54:56.039516Z"},"content_sha256":"11500b7b6a20c906f6e9143c44456924657a971237758d55072719c0020f39c0","schema_version":"1.0","event_id":"sha256:11500b7b6a20c906f6e9143c44456924657a971237758d55072719c0020f39c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:V2GWWKIZ2VOTWE5GPHI5B72OXH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of spontaneous electric dipoles in homonuclear niobium clusters","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kristopher Andersen, Vijay Kumar, Warren Pickett, Yoshiyuki Kawazoe","submitted_at":"2004-10-21T21:46:19Z","abstract_excerpt":"Surprisingly large spontaneous electric dipole moments recently observed in homonuclear niobium clusters below 100 K (Moro el. al. Science 300, 1265 (2003)) are explained using first-principles electronic structure calculations. The calculated moments for Nb(n) (n <= 15) closely follow the experimental data in which large dipole moments are seen for n = 11-14. We establish that the dipoles are strongly correlated with the geometrical asymmetry of the clusters. The magnitude of the dipole moment is roughly proportional to the spread in the principal moments of inertia and its direction tends to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0410564","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0410564/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":"2026-07-04T16:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5P/mPNOBtXq2yUvS6wPnyBXv1N7rVVrhaAOnFmH7YEZMc9t7NG+DXGCYxkJ9QlObWiUYaxbXUUiNET1U9mkOAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:54:56.040025Z"},"content_sha256":"d05012586f02923adc279f3251466182b93edbf2c6a18c7d43c53e58d58c59f7","schema_version":"1.0","event_id":"sha256:d05012586f02923adc279f3251466182b93edbf2c6a18c7d43c53e58d58c59f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/bundle.json","state_url":"https://pith.science/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/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":"2026-08-06T10:54:56Z","links":{"resolver":"https://pith.science/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH","bundle":"https://pith.science/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/bundle.json","state":"https://pith.science/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2GWWKIZ2VOTWE5GPHI5B72OXH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:V2GWWKIZ2VOTWE5GPHI5B72OXH","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":"f9f138cf558b3ba849e4c1d7e0109622e5d55faf6aeaffff3bdfdf894a794847","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2004-10-21T21:46:19Z","title_canon_sha256":"0abd1a9e4d0c7e9d5cd1d1babf77429fa867cd1a597f936168716a2c133318eb"},"schema_version":"1.0","source":{"id":"cond-mat/0410564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0410564","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0410564v1","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0410564","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"V2GWWKIZ2VOT","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_16","alias_value":"V2GWWKIZ2VOTWE5G","created_at":"2026-07-04T16:47:13Z"},{"alias_kind":"pith_short_8","alias_value":"V2GWWKIZ","created_at":"2026-07-04T16:47:13Z"}],"graph_snapshots":[{"event_id":"sha256:d05012586f02923adc279f3251466182b93edbf2c6a18c7d43c53e58d58c59f7","target":"graph","created_at":"2026-07-04T16:47:13Z","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/cond-mat/0410564/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Surprisingly large spontaneous electric dipole moments recently observed in homonuclear niobium clusters below 100 K (Moro el. al. Science 300, 1265 (2003)) are explained using first-principles electronic structure calculations. The calculated moments for Nb(n) (n <= 15) closely follow the experimental data in which large dipole moments are seen for n = 11-14. We establish that the dipoles are strongly correlated with the geometrical asymmetry of the clusters. The magnitude of the dipole moment is roughly proportional to the spread in the principal moments of inertia and its direction tends to","authors_text":"Kristopher Andersen, Vijay Kumar, Warren Pickett, Yoshiyuki Kawazoe","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2004-10-21T21:46:19Z","title":"Origin of spontaneous electric dipoles in homonuclear niobium clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0410564","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":"sha256:11500b7b6a20c906f6e9143c44456924657a971237758d55072719c0020f39c0","target":"record","created_at":"2026-07-04T16:47:13Z","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":"f9f138cf558b3ba849e4c1d7e0109622e5d55faf6aeaffff3bdfdf894a794847","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2004-10-21T21:46:19Z","title_canon_sha256":"0abd1a9e4d0c7e9d5cd1d1babf77429fa867cd1a597f936168716a2c133318eb"},"schema_version":"1.0","source":{"id":"cond-mat/0410564","kind":"arxiv","version":1}},"canonical_sha256":"ae8d6b2919d55d3b13a679d1d0ff4eb9f8ccd89eaf1e75aa1db9042c472783f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae8d6b2919d55d3b13a679d1d0ff4eb9f8ccd89eaf1e75aa1db9042c472783f3","first_computed_at":"2026-07-04T16:47:13.817715Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:47:13.817715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hahJmf4WRcA0Ywbb64ZhC/JjTQBrmEQ+uvw3M1Cgo8zbgKEVXH0i+fYT1oi2wrXIqgJFu+sK5wOlgiAKlOisCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:47:13.818096Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0410564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11500b7b6a20c906f6e9143c44456924657a971237758d55072719c0020f39c0","sha256:d05012586f02923adc279f3251466182b93edbf2c6a18c7d43c53e58d58c59f7"],"state_sha256":"f6b2460d488b773056c40a892698cb9645a2a9ff1e416aa6a01ecef42353827c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b7BsZ8GkYLO8tci5ydEBTY4jJpSeQ3x5MWt3WST9Bmhd7FXOQTzH5zqMgh+H5oylrH0IyJvGXHZkm8BopPlMAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T10:54:56.045262Z","bundle_sha256":"95bdbab293ecc79701e507f8dea3a52a89353a73183a6bfbf2f48b1ce82342bc"}}