{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:45CYL6SHR6TOX4TSIDX36PASQP","short_pith_number":"pith:45CYL6SH","canonical_record":{"source":{"id":"1302.4240","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-18T12:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"d5957574899e890c75591b69c1daf3b02d70d58934279860adb6d47c3b3315bb","abstract_canon_sha256":"68bf3d5ce163507ffc745cebf78c4cd86d71ccf91ca7b2b27a089be98f4b7027"},"schema_version":"1.0"},"canonical_sha256":"e74585fa478fa6ebf27240efbf3c1283c04117401a3a113fd120fa5ab4e38b0b","source":{"kind":"arxiv","id":"1302.4240","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4240","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4240v1","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4240","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"pith_short_12","alias_value":"45CYL6SHR6TO","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"45CYL6SHR6TOX4TS","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"45CYL6SH","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:45CYL6SHR6TOX4TSIDX36PASQP","target":"record","payload":{"canonical_record":{"source":{"id":"1302.4240","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-18T12:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"d5957574899e890c75591b69c1daf3b02d70d58934279860adb6d47c3b3315bb","abstract_canon_sha256":"68bf3d5ce163507ffc745cebf78c4cd86d71ccf91ca7b2b27a089be98f4b7027"},"schema_version":"1.0"},"canonical_sha256":"e74585fa478fa6ebf27240efbf3c1283c04117401a3a113fd120fa5ab4e38b0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:41.348974Z","signature_b64":"l6uLA7o+HYE5Ee4lcFFDAZrcByG/M8lrXi/aJy6Q40UvBEwa5jXb5kjLxHXaQz8AKAMGN8MxNb5Ypex58diaDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e74585fa478fa6ebf27240efbf3c1283c04117401a3a113fd120fa5ab4e38b0b","last_reissued_at":"2026-05-18T03:24:41.348362Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:41.348362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.4240","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":"2026-05-18T03:24:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XzjncsiDP+Gw4lyqh74D0rBp5C1C6E+srL5ak63gI5Mde6tw5whBQtqEg0Pb0+nu508z4CMB5u82gFg0I4K3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:33:17.261250Z"},"content_sha256":"3ceb4be3edf1f05ca0f91c40f082806add35d5325d06d522361a6a917970f07b","schema_version":"1.0","event_id":"sha256:3ceb4be3edf1f05ca0f91c40f082806add35d5325d06d522361a6a917970f07b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:45CYL6SHR6TOX4TSIDX36PASQP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Iron porphyrin molecules on Cu(001): Influence of adlayers and ligands on the magnetic properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Kr\\\"uger, B. Krumme, B. Sanyal, C. Czekelius, C. F. Hermanns, C. Schmitz-Antoniak, C. Tieg, C. Weis, D. Bovenschen, E. Weschke, H. C. Herper, H. Wende, J. Miguel, M. Bernien, O. Eriksson, S. Bhandary, W. Kuch","submitted_at":"2013-02-18T12:03:30Z","abstract_excerpt":"The structural and magnetic properties of Fe octaethylporphyrin (OEP) molecules on Cu(001) have been investigated by means of density functional theory (DFT) methods and X-ray absorption spectroscopy. The molecules have been adsorbed on the bare metal surface and on an oxygen-covered surface, which shows a $\\sqrt{2}\\times2\\sqrt{2}R45^{\\circ}$ reconstruction. In order to allow for a direct comparison between magnetic moments obtained from sum-rule analysis and DFT we calculate the dipolar term $7< T_z>$, which is also important in view of the magnetic anisotropy of the molecule. The measured X-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4240","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":"2026-05-18T03:24:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mO0Wk+gKk8TMcrrE3I035/4IhT6c1CEZSwZMHYY/NusFNIsfIbd0zIH9553x0wYF6++bjcvH2tgwbeEA5I/PCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:33:17.261934Z"},"content_sha256":"0395fc3f67f98548491749584d14eb4036b577ceb9e9d470eaaa2c2116323648","schema_version":"1.0","event_id":"sha256:0395fc3f67f98548491749584d14eb4036b577ceb9e9d470eaaa2c2116323648"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/45CYL6SHR6TOX4TSIDX36PASQP/bundle.json","state_url":"https://pith.science/pith/45CYL6SHR6TOX4TSIDX36PASQP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/45CYL6SHR6TOX4TSIDX36PASQP/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":"2026-05-25T17:33:17Z","links":{"resolver":"https://pith.science/pith/45CYL6SHR6TOX4TSIDX36PASQP","bundle":"https://pith.science/pith/45CYL6SHR6TOX4TSIDX36PASQP/bundle.json","state":"https://pith.science/pith/45CYL6SHR6TOX4TSIDX36PASQP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/45CYL6SHR6TOX4TSIDX36PASQP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:45CYL6SHR6TOX4TSIDX36PASQP","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":"68bf3d5ce163507ffc745cebf78c4cd86d71ccf91ca7b2b27a089be98f4b7027","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-18T12:03:30Z","title_canon_sha256":"d5957574899e890c75591b69c1daf3b02d70d58934279860adb6d47c3b3315bb"},"schema_version":"1.0","source":{"id":"1302.4240","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4240","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4240v1","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4240","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"pith_short_12","alias_value":"45CYL6SHR6TO","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"45CYL6SHR6TOX4TS","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"45CYL6SH","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:0395fc3f67f98548491749584d14eb4036b577ceb9e9d470eaaa2c2116323648","target":"graph","created_at":"2026-05-18T03:24:41Z","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":"The structural and magnetic properties of Fe octaethylporphyrin (OEP) molecules on Cu(001) have been investigated by means of density functional theory (DFT) methods and X-ray absorption spectroscopy. The molecules have been adsorbed on the bare metal surface and on an oxygen-covered surface, which shows a $\\sqrt{2}\\times2\\sqrt{2}R45^{\\circ}$ reconstruction. In order to allow for a direct comparison between magnetic moments obtained from sum-rule analysis and DFT we calculate the dipolar term $7< T_z>$, which is also important in view of the magnetic anisotropy of the molecule. The measured X-","authors_text":"A. Kr\\\"uger, B. Krumme, B. Sanyal, C. Czekelius, C. F. Hermanns, C. Schmitz-Antoniak, C. Tieg, C. Weis, D. Bovenschen, E. Weschke, H. C. Herper, H. Wende, J. Miguel, M. Bernien, O. Eriksson, S. Bhandary, W. Kuch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-18T12:03:30Z","title":"Iron porphyrin molecules on Cu(001): Influence of adlayers and ligands on the magnetic properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4240","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":"sha256:3ceb4be3edf1f05ca0f91c40f082806add35d5325d06d522361a6a917970f07b","target":"record","created_at":"2026-05-18T03:24:41Z","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":"68bf3d5ce163507ffc745cebf78c4cd86d71ccf91ca7b2b27a089be98f4b7027","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-02-18T12:03:30Z","title_canon_sha256":"d5957574899e890c75591b69c1daf3b02d70d58934279860adb6d47c3b3315bb"},"schema_version":"1.0","source":{"id":"1302.4240","kind":"arxiv","version":1}},"canonical_sha256":"e74585fa478fa6ebf27240efbf3c1283c04117401a3a113fd120fa5ab4e38b0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e74585fa478fa6ebf27240efbf3c1283c04117401a3a113fd120fa5ab4e38b0b","first_computed_at":"2026-05-18T03:24:41.348362Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:41.348362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l6uLA7o+HYE5Ee4lcFFDAZrcByG/M8lrXi/aJy6Q40UvBEwa5jXb5kjLxHXaQz8AKAMGN8MxNb5Ypex58diaDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:41.348974Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.4240","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ceb4be3edf1f05ca0f91c40f082806add35d5325d06d522361a6a917970f07b","sha256:0395fc3f67f98548491749584d14eb4036b577ceb9e9d470eaaa2c2116323648"],"state_sha256":"0561c119e6feabdfb32a57a6a72a4932a2f8ebc0b5688e07ebf42030939fabc0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c3xeSkb7KhDe6FPOl//hrlK1O0QNLXe6a9IJNVrGbUmrEBYC5Ax0qr5biuIUKTHpPYjBkkNKmpCQx4p3ImZsBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:33:17.265308Z","bundle_sha256":"bc15f5611534e6473a96053b7c53a87273a8ab99ab8731055a0fb5449b7ab049"}}