{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:YZKYYFMG5QYQN4BF6LCXHFEUTG","short_pith_number":"pith:YZKYYFMG","canonical_record":{"source":{"id":"1108.6199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-31T12:01:20Z","cross_cats_sorted":[],"title_canon_sha256":"b6ea75fc87fbfdcf46606b7e2ec965022609e1f274269cd4767c6dde197dae5a","abstract_canon_sha256":"2133fab540ec47d9e0b23c430d1f30775c3a9f650c74234113fe405554f2f9a3"},"schema_version":"1.0"},"canonical_sha256":"c6558c1586ec3106f025f2c5739494999078c8a553a96f37c53988c62c6c2734","source":{"kind":"arxiv","id":"1108.6199","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.6199","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"arxiv_version","alias_value":"1108.6199v1","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.6199","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"pith_short_12","alias_value":"YZKYYFMG5QYQ","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YZKYYFMG5QYQN4BF","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YZKYYFMG","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:YZKYYFMG5QYQN4BF6LCXHFEUTG","target":"record","payload":{"canonical_record":{"source":{"id":"1108.6199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-31T12:01:20Z","cross_cats_sorted":[],"title_canon_sha256":"b6ea75fc87fbfdcf46606b7e2ec965022609e1f274269cd4767c6dde197dae5a","abstract_canon_sha256":"2133fab540ec47d9e0b23c430d1f30775c3a9f650c74234113fe405554f2f9a3"},"schema_version":"1.0"},"canonical_sha256":"c6558c1586ec3106f025f2c5739494999078c8a553a96f37c53988c62c6c2734","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:44.060048Z","signature_b64":"4O7eTqYtypd8SRDGZFXTj7o0RwbSCeyz6Vm5s9NWjxxpapp9DaJ3WiAWhsvN7IjiBTOXt8k+3HD/HYKhQvbXAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6558c1586ec3106f025f2c5739494999078c8a553a96f37c53988c62c6c2734","last_reissued_at":"2026-05-18T02:00:44.059461Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:44.059461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.6199","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":"2026-05-18T02:00:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A2NBll+vh29cldRKfCJYq4SEemlWuL66ipE1RwUFMKz5oiDiBYzzsdRPBnRQGEMOzurSfYSUMzQmUmW6Q+v6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:01:51.472230Z"},"content_sha256":"35786ac9a56ad30cbf380324fd26bcd50e41c0143b1c49e82e192846e4c8a08c","schema_version":"1.0","event_id":"sha256:35786ac9a56ad30cbf380324fd26bcd50e41c0143b1c49e82e192846e4c8a08c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:YZKYYFMG5QYQN4BF6LCXHFEUTG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetization profile for impurities in graphene nanoribbons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"M. S. Ferreira, S. B. Fagan, S. R. Power, V. M. de Menezes","submitted_at":"2011-08-31T12:01:20Z","abstract_excerpt":"The magnetic properties of graphene-related materials and in particular the spin-polarised edge states predicted for pristine graphene nanoribbons (GNRs) with certain edge geometries have received much attention recently due to a range of possible technological applications. However, the magnetic properties of pristine GNRs are not predicted to be particularly robust in the presence of edge disorder. In this work, we examine the magnetic properties of GNRs doped with transition-metal atoms using a combination of mean-field Hubbard and Density Functional Theory techniques. The effect of impurit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.6199","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":"2026-05-18T02:00:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qTR1SiQ2A3vKieEEKgO6rKzPguAjTFV/4IDMPlfOWkXdeDEH+r3MKe2mUF4wf5GxiWtNkRcNu0MZ+830eLHaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:01:51.472622Z"},"content_sha256":"c5642815b89bd5b5cc7ee5898ee4872c22d38bb41c2d141ca87a9a38c34ce84f","schema_version":"1.0","event_id":"sha256:c5642815b89bd5b5cc7ee5898ee4872c22d38bb41c2d141ca87a9a38c34ce84f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/bundle.json","state_url":"https://pith.science/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/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":"2026-05-27T11:01:51Z","links":{"resolver":"https://pith.science/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG","bundle":"https://pith.science/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/bundle.json","state":"https://pith.science/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YZKYYFMG5QYQN4BF6LCXHFEUTG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:YZKYYFMG5QYQN4BF6LCXHFEUTG","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":"2133fab540ec47d9e0b23c430d1f30775c3a9f650c74234113fe405554f2f9a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-31T12:01:20Z","title_canon_sha256":"b6ea75fc87fbfdcf46606b7e2ec965022609e1f274269cd4767c6dde197dae5a"},"schema_version":"1.0","source":{"id":"1108.6199","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.6199","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"arxiv_version","alias_value":"1108.6199v1","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.6199","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"pith_short_12","alias_value":"YZKYYFMG5QYQ","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YZKYYFMG5QYQN4BF","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YZKYYFMG","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:c5642815b89bd5b5cc7ee5898ee4872c22d38bb41c2d141ca87a9a38c34ce84f","target":"graph","created_at":"2026-05-18T02:00:44Z","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 magnetic properties of graphene-related materials and in particular the spin-polarised edge states predicted for pristine graphene nanoribbons (GNRs) with certain edge geometries have received much attention recently due to a range of possible technological applications. However, the magnetic properties of pristine GNRs are not predicted to be particularly robust in the presence of edge disorder. In this work, we examine the magnetic properties of GNRs doped with transition-metal atoms using a combination of mean-field Hubbard and Density Functional Theory techniques. The effect of impurit","authors_text":"M. S. Ferreira, S. B. Fagan, S. R. Power, V. M. de Menezes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-31T12:01:20Z","title":"Magnetization profile for impurities in graphene nanoribbons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.6199","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":"sha256:35786ac9a56ad30cbf380324fd26bcd50e41c0143b1c49e82e192846e4c8a08c","target":"record","created_at":"2026-05-18T02:00:44Z","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":"2133fab540ec47d9e0b23c430d1f30775c3a9f650c74234113fe405554f2f9a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-31T12:01:20Z","title_canon_sha256":"b6ea75fc87fbfdcf46606b7e2ec965022609e1f274269cd4767c6dde197dae5a"},"schema_version":"1.0","source":{"id":"1108.6199","kind":"arxiv","version":1}},"canonical_sha256":"c6558c1586ec3106f025f2c5739494999078c8a553a96f37c53988c62c6c2734","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6558c1586ec3106f025f2c5739494999078c8a553a96f37c53988c62c6c2734","first_computed_at":"2026-05-18T02:00:44.059461Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:44.059461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4O7eTqYtypd8SRDGZFXTj7o0RwbSCeyz6Vm5s9NWjxxpapp9DaJ3WiAWhsvN7IjiBTOXt8k+3HD/HYKhQvbXAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:44.060048Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.6199","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35786ac9a56ad30cbf380324fd26bcd50e41c0143b1c49e82e192846e4c8a08c","sha256:c5642815b89bd5b5cc7ee5898ee4872c22d38bb41c2d141ca87a9a38c34ce84f"],"state_sha256":"7cf1250a5d69cc02e54bba2d2db2d2f7d2f8d3c6f85bfbabb3a1b9ffba8130df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/wNtFud7iODg6gFkW21Fy7PwbK5zeYAqPi2JN+1Orox5XhO0tCoEwRGL6LPKlMnHpHZrVDG/+d887b51axRjBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T11:01:51.475207Z","bundle_sha256":"45671cbe77694f0294e56d0ceeb2ebe4fc7fc728d48c9e4e49149db1e5e88ef0"}}