{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:433AQ6JI2NEMKWZC4XPVICG7ZU","short_pith_number":"pith:433AQ6JI","canonical_record":{"source":{"id":"0805.3191","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2008-05-21T01:53:56Z","cross_cats_sorted":[],"title_canon_sha256":"d139c2bb5c6b4a42f5da61b066b24ba6d3c657f1ed96da7b66bce4ee74d93388","abstract_canon_sha256":"17b910d6cd5bcbedcb1139c0a480d825219cbb32a515b84f659ac0e94dba1ffc"},"schema_version":"1.0"},"canonical_sha256":"e6f6087928d348c55b22e5df5408dfcd0ccf6d056b0310d8758f6fc406821e03","source":{"kind":"arxiv","id":"0805.3191","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3191","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3191v2","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3191","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"pith_short_12","alias_value":"433AQ6JI2NEM","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"433AQ6JI2NEMKWZC","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"433AQ6JI","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:433AQ6JI2NEMKWZC4XPVICG7ZU","target":"record","payload":{"canonical_record":{"source":{"id":"0805.3191","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2008-05-21T01:53:56Z","cross_cats_sorted":[],"title_canon_sha256":"d139c2bb5c6b4a42f5da61b066b24ba6d3c657f1ed96da7b66bce4ee74d93388","abstract_canon_sha256":"17b910d6cd5bcbedcb1139c0a480d825219cbb32a515b84f659ac0e94dba1ffc"},"schema_version":"1.0"},"canonical_sha256":"e6f6087928d348c55b22e5df5408dfcd0ccf6d056b0310d8758f6fc406821e03","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:18.667406Z","signature_b64":"AKzpAek/ZzZnzvEuewNxgSuwG0Ns0ZY7uRiRbxdzA8QSMWmbEu0Ta/5h4GKhz6qFZ+a5LNyp1UhONOn6PspXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6f6087928d348c55b22e5df5408dfcd0ccf6d056b0310d8758f6fc406821e03","last_reissued_at":"2026-05-18T03:24:18.666599Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:18.666599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0805.3191","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:24:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PwtdCH/QApEg3VVWMG/pdj0DJ3yZvPfaMcSjel23vSq/aEkgAIBy3QSjn7Cd0E1sV+pG0rfrABnM55MbmvN2AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:26:38.468082Z"},"content_sha256":"b113e77d6066591a1d4f61983a4bae90cf8c244ae4bef00c692e227884bc111e","schema_version":"1.0","event_id":"sha256:b113e77d6066591a1d4f61983a4bae90cf8c244ae4bef00c692e227884bc111e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:433AQ6JI2NEMKWZC4XPVICG7ZU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energetic Analysis of Magnetic Transitions in Ultra-small Nanoscopic Magnetic Rings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"Deepak K. Singh, Mark T. Tuominen, Robert V. Krotkov","submitted_at":"2008-05-21T01:53:56Z","abstract_excerpt":"In this article, we report on experimental and theoretical investigations of magnetic transitions in cobalt rings of size (diameter, width and thickness) comparable to the exchange length of cobalt. Magnetization measurements were performed for two sets of magnetic ring arrays: ultra-small magnetic rings (outer diameter 13 nm, inner diameter 5nm and thickness 5 nm) and small thin-walled magnetic rings (outer diameter 150 nm, width 5 nm and thickness 5 nm). This is the first report on the fabrication and magnetic properties of such small rings. Our calculations suggest that if the magnetic ring"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3191","kind":"arxiv","version":2},"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":"2026-05-18T03:24:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cxL6vA/3g8SzprPFbCuqbJzD7io35P2xBmEJeiSkABSTezROTv16qCF+Mxcqb/p7tSSVDtVpdF4tHTZKLszpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:26:38.468512Z"},"content_sha256":"75966a0109fbf89603b7b5181348033be4e4aae5fa2cfa776d0ee5ae49dcff43","schema_version":"1.0","event_id":"sha256:75966a0109fbf89603b7b5181348033be4e4aae5fa2cfa776d0ee5ae49dcff43"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/bundle.json","state_url":"https://pith.science/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/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":"2026-05-30T11:26:38Z","links":{"resolver":"https://pith.science/pith/433AQ6JI2NEMKWZC4XPVICG7ZU","bundle":"https://pith.science/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/bundle.json","state":"https://pith.science/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/433AQ6JI2NEMKWZC4XPVICG7ZU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:433AQ6JI2NEMKWZC4XPVICG7ZU","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":"17b910d6cd5bcbedcb1139c0a480d825219cbb32a515b84f659ac0e94dba1ffc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2008-05-21T01:53:56Z","title_canon_sha256":"d139c2bb5c6b4a42f5da61b066b24ba6d3c657f1ed96da7b66bce4ee74d93388"},"schema_version":"1.0","source":{"id":"0805.3191","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3191","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3191v2","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3191","created_at":"2026-05-18T03:24:18Z"},{"alias_kind":"pith_short_12","alias_value":"433AQ6JI2NEM","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"433AQ6JI2NEMKWZC","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"433AQ6JI","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:75966a0109fbf89603b7b5181348033be4e4aae5fa2cfa776d0ee5ae49dcff43","target":"graph","created_at":"2026-05-18T03:24:18Z","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":"In this article, we report on experimental and theoretical investigations of magnetic transitions in cobalt rings of size (diameter, width and thickness) comparable to the exchange length of cobalt. Magnetization measurements were performed for two sets of magnetic ring arrays: ultra-small magnetic rings (outer diameter 13 nm, inner diameter 5nm and thickness 5 nm) and small thin-walled magnetic rings (outer diameter 150 nm, width 5 nm and thickness 5 nm). This is the first report on the fabrication and magnetic properties of such small rings. Our calculations suggest that if the magnetic ring","authors_text":"Deepak K. Singh, Mark T. Tuominen, Robert V. Krotkov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2008-05-21T01:53:56Z","title":"Energetic Analysis of Magnetic Transitions in Ultra-small Nanoscopic Magnetic Rings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3191","kind":"arxiv","version":2},"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:b113e77d6066591a1d4f61983a4bae90cf8c244ae4bef00c692e227884bc111e","target":"record","created_at":"2026-05-18T03:24:18Z","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":"17b910d6cd5bcbedcb1139c0a480d825219cbb32a515b84f659ac0e94dba1ffc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2008-05-21T01:53:56Z","title_canon_sha256":"d139c2bb5c6b4a42f5da61b066b24ba6d3c657f1ed96da7b66bce4ee74d93388"},"schema_version":"1.0","source":{"id":"0805.3191","kind":"arxiv","version":2}},"canonical_sha256":"e6f6087928d348c55b22e5df5408dfcd0ccf6d056b0310d8758f6fc406821e03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6f6087928d348c55b22e5df5408dfcd0ccf6d056b0310d8758f6fc406821e03","first_computed_at":"2026-05-18T03:24:18.666599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:18.666599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AKzpAek/ZzZnzvEuewNxgSuwG0Ns0ZY7uRiRbxdzA8QSMWmbEu0Ta/5h4GKhz6qFZ+a5LNyp1UhONOn6PspXAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:18.667406Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.3191","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b113e77d6066591a1d4f61983a4bae90cf8c244ae4bef00c692e227884bc111e","sha256:75966a0109fbf89603b7b5181348033be4e4aae5fa2cfa776d0ee5ae49dcff43"],"state_sha256":"bde366a4cea9b3d018190d05f74f8a7f4da3f0e81b4d2b5edd25c4159f635817"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pt5B/XRIOmQNDi/rnRZ/N0QI7aR1ugTZZW6X9USk73aW6lhkJJVD10lkJm/gUm/XJn9hNnNoFZOJ+u8rOrSEBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:26:38.471351Z","bundle_sha256":"7288c58ef3d9786544ace86c18c49776c5b72ad89d4ed758a8e24560ba44c7fd"}}