{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CAXPVPR7LEFVBAYOHVSPFXXU4S","short_pith_number":"pith:CAXPVPR7","canonical_record":{"source":{"id":"1506.04941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-16T12:33:59Z","cross_cats_sorted":[],"title_canon_sha256":"b5b1a12839ec95dd93bad39a2b73a49c8dd83d4e865cfb802f4a25e6acb5942c","abstract_canon_sha256":"febadfcb7f4524a60d86fb4b06d5de29af27a173cc6cae38576d822a5428cdf0"},"schema_version":"1.0"},"canonical_sha256":"102efabe3f590b50830e3d64f2def4e4a5f3fae9bcf93c01e8d56c296b5f9219","source":{"kind":"arxiv","id":"1506.04941","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04941","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04941v1","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04941","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"pith_short_12","alias_value":"CAXPVPR7LEFV","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CAXPVPR7LEFVBAYO","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CAXPVPR7","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CAXPVPR7LEFVBAYOHVSPFXXU4S","target":"record","payload":{"canonical_record":{"source":{"id":"1506.04941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-16T12:33:59Z","cross_cats_sorted":[],"title_canon_sha256":"b5b1a12839ec95dd93bad39a2b73a49c8dd83d4e865cfb802f4a25e6acb5942c","abstract_canon_sha256":"febadfcb7f4524a60d86fb4b06d5de29af27a173cc6cae38576d822a5428cdf0"},"schema_version":"1.0"},"canonical_sha256":"102efabe3f590b50830e3d64f2def4e4a5f3fae9bcf93c01e8d56c296b5f9219","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:46.603682Z","signature_b64":"7e4e/zeLsblT+3Y96eNQVRtKf1JNOocWm1DUcc720bNErqaZkAFoLYtkkiO53CvG5RUUPW2cFwxhaRYkx1LjAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"102efabe3f590b50830e3d64f2def4e4a5f3fae9bcf93c01e8d56c296b5f9219","last_reissued_at":"2026-05-18T01:09:46.603037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:46.603037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.04941","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":"2026-05-18T01:09:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0/6hsnrLVFM9MKMQQJkMwjQ9csEWQd/o2Ko8P+Awln8NjMVSvnbpwRlZBb+GwOa6ymclmJeSvi//q6wElHkIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:51:14.602037Z"},"content_sha256":"4702581ce5af79a9344313c8062c0767b8606987aedcfdd8f3e6960dffcd0e66","schema_version":"1.0","event_id":"sha256:4702581ce5af79a9344313c8062c0767b8606987aedcfdd8f3e6960dffcd0e66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CAXPVPR7LEFVBAYOHVSPFXXU4S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic properties of transition metal atoms on Cu$_2$N/Cu(100)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alejandro Ferr\\'on, Joaqu\\'in Fern\\'andez-Rossier, Jose Luis Lado","submitted_at":"2015-06-16T12:33:59Z","abstract_excerpt":"We study the nature of spin excitations of individual transition metal atoms (Ti, V, Cr, Mn, Fe, Co and Ni) deposited on a Cu$_2$N/Cu(100) surface using both spin-polarized density functional theory (DFT) and exact diagonalization of an Anderson model derived from DFT. We use DFT to compare the structural, electronic and magnetic properties of different transition metal adatoms on the surface. We find that the average occupation of the transition metal d shell, main contributor to the magnetic moment, is not quantized, in contrast with the quantized spin in the model Hamiltonians that successf"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04941","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":"2026-05-18T01:09:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RyA9Crz113NgNVbEjzhNhpszraH3smR+Ia5KhdeNJHaBBZt5RPubII9Fegxm56hMklNm9LArvHg8iuSzr7YADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:51:14.602719Z"},"content_sha256":"ea2b7c3e64fe00d477808e7d4a733b648a27edb45c6dad58804225f78242b3ae","schema_version":"1.0","event_id":"sha256:ea2b7c3e64fe00d477808e7d4a733b648a27edb45c6dad58804225f78242b3ae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/bundle.json","state_url":"https://pith.science/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/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":"2026-05-26T07:51:14Z","links":{"resolver":"https://pith.science/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S","bundle":"https://pith.science/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/bundle.json","state":"https://pith.science/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CAXPVPR7LEFVBAYOHVSPFXXU4S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CAXPVPR7LEFVBAYOHVSPFXXU4S","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":"febadfcb7f4524a60d86fb4b06d5de29af27a173cc6cae38576d822a5428cdf0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-16T12:33:59Z","title_canon_sha256":"b5b1a12839ec95dd93bad39a2b73a49c8dd83d4e865cfb802f4a25e6acb5942c"},"schema_version":"1.0","source":{"id":"1506.04941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04941","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04941v1","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04941","created_at":"2026-05-18T01:09:46Z"},{"alias_kind":"pith_short_12","alias_value":"CAXPVPR7LEFV","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CAXPVPR7LEFVBAYO","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CAXPVPR7","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:ea2b7c3e64fe00d477808e7d4a733b648a27edb45c6dad58804225f78242b3ae","target":"graph","created_at":"2026-05-18T01:09:46Z","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":"We study the nature of spin excitations of individual transition metal atoms (Ti, V, Cr, Mn, Fe, Co and Ni) deposited on a Cu$_2$N/Cu(100) surface using both spin-polarized density functional theory (DFT) and exact diagonalization of an Anderson model derived from DFT. We use DFT to compare the structural, electronic and magnetic properties of different transition metal adatoms on the surface. We find that the average occupation of the transition metal d shell, main contributor to the magnetic moment, is not quantized, in contrast with the quantized spin in the model Hamiltonians that successf","authors_text":"Alejandro Ferr\\'on, Joaqu\\'in Fern\\'andez-Rossier, Jose Luis Lado","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-16T12:33:59Z","title":"Electronic properties of transition metal atoms on Cu$_2$N/Cu(100)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04941","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":"sha256:4702581ce5af79a9344313c8062c0767b8606987aedcfdd8f3e6960dffcd0e66","target":"record","created_at":"2026-05-18T01:09:46Z","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":"febadfcb7f4524a60d86fb4b06d5de29af27a173cc6cae38576d822a5428cdf0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-16T12:33:59Z","title_canon_sha256":"b5b1a12839ec95dd93bad39a2b73a49c8dd83d4e865cfb802f4a25e6acb5942c"},"schema_version":"1.0","source":{"id":"1506.04941","kind":"arxiv","version":1}},"canonical_sha256":"102efabe3f590b50830e3d64f2def4e4a5f3fae9bcf93c01e8d56c296b5f9219","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"102efabe3f590b50830e3d64f2def4e4a5f3fae9bcf93c01e8d56c296b5f9219","first_computed_at":"2026-05-18T01:09:46.603037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:46.603037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7e4e/zeLsblT+3Y96eNQVRtKf1JNOocWm1DUcc720bNErqaZkAFoLYtkkiO53CvG5RUUPW2cFwxhaRYkx1LjAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:46.603682Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.04941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4702581ce5af79a9344313c8062c0767b8606987aedcfdd8f3e6960dffcd0e66","sha256:ea2b7c3e64fe00d477808e7d4a733b648a27edb45c6dad58804225f78242b3ae"],"state_sha256":"707d4a4186a310565fbc551c3cb7afcf780e15582872a8017f788ed106e8e483"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+rZTgOekmo1o3t87OSKC7jp6dVzvu7rEcYpWHsUMcGAEQpMazOhobL4NJYX3350EcjwcMAOMDkoxV2jevd8XDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:51:14.606097Z","bundle_sha256":"0a0ab6c5f2e202716e78bcdaa5f5c3b26facda173aba5f6e382bfe8be5cd7a19"}}