{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:RI2MPJ2XVYZGWSGNN6SOLGAHEO","short_pith_number":"pith:RI2MPJ2X","canonical_record":{"source":{"id":"1303.5642","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-22T15:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"f99335b166f64ec71e53f62cdec7f7cc04cbabaccf88fa9084b4eae7cf768a13","abstract_canon_sha256":"1ac6427a9d995bd49fed60d717bf0c12c8e0daecf9ceb6625560dcaf3b09eb59"},"schema_version":"1.0"},"canonical_sha256":"8a34c7a757ae326b48cd6fa4e598072394970d91ff47582d60ae3537e0b2f9ae","source":{"kind":"arxiv","id":"1303.5642","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5642","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5642v2","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5642","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"RI2MPJ2XVYZG","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RI2MPJ2XVYZGWSGN","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RI2MPJ2X","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:RI2MPJ2XVYZGWSGNN6SOLGAHEO","target":"record","payload":{"canonical_record":{"source":{"id":"1303.5642","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-22T15:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"f99335b166f64ec71e53f62cdec7f7cc04cbabaccf88fa9084b4eae7cf768a13","abstract_canon_sha256":"1ac6427a9d995bd49fed60d717bf0c12c8e0daecf9ceb6625560dcaf3b09eb59"},"schema_version":"1.0"},"canonical_sha256":"8a34c7a757ae326b48cd6fa4e598072394970d91ff47582d60ae3537e0b2f9ae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:59.496011Z","signature_b64":"W+4pXHU7UayABD6QcBWxOqhYOLQT6JBYvN+u9Rz9ezoxlAU03i4rDkuT+MCIcQIzeU14fbSMcY2IfWNcxxjhAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a34c7a757ae326b48cd6fa4e598072394970d91ff47582d60ae3537e0b2f9ae","last_reissued_at":"2026-05-18T01:50:59.495602Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:59.495602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.5642","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":"2026-05-18T01:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kzZ7HLI/guK3emz/x605iO78M8SdVKXDEwVt2N25A3oMi8bdiH/QXxL/GEuVVGP1lIO2z9eik8g/FALt4DFRAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:05:04.838217Z"},"content_sha256":"5f00c58c928ac56cf6d0352ca0a1ad255429fd4d7a29b4b0133523a31f06356b","schema_version":"1.0","event_id":"sha256:5f00c58c928ac56cf6d0352ca0a1ad255429fd4d7a29b4b0133523a31f06356b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:RI2MPJ2XVYZGWSGNN6SOLGAHEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Magnetic Structure of Individual Flux Vortices in Superconducting MgB2 Derived using Transmission Electron Microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"C.J. Bowell, J.C. Loudon, J. Karpinski, N.D. Zhigadlo, P.A. Midgley","submitted_at":"2013-03-22T15:20:48Z","abstract_excerpt":"Images of flux vortices in superconductors acquired by transmission electron microscopy should allow a quantitative determination of their magnetic structure but so far, only visual comparisons have been made between experimental images and simulations. Here, we make a quantitative comparison between Fresnel images and simulations based on the modified London equation to investigate the magnetic structure of flux vortices in MgB2. This technique gives an absolute, low-field (~30 Oe) measurement of the penetration depth from images of single vortices. We found that these simulations gave a good"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5642","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":"2026-05-18T01:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KJlw8i7BR7+bchet4H9USCvtd+qOOHHrkDBOFgaUcYjKT9ZE40XpnFBUfP3mKEzR50Lsk6TB+AL/Ox6Pl71bAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:05:04.838576Z"},"content_sha256":"5faccb3b2fc068475b447e131902c3157b321ba836b91e6f12e1e45e798a20b3","schema_version":"1.0","event_id":"sha256:5faccb3b2fc068475b447e131902c3157b321ba836b91e6f12e1e45e798a20b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/bundle.json","state_url":"https://pith.science/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/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":"2026-05-28T12:05:04Z","links":{"resolver":"https://pith.science/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO","bundle":"https://pith.science/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/bundle.json","state":"https://pith.science/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RI2MPJ2XVYZGWSGNN6SOLGAHEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RI2MPJ2XVYZGWSGNN6SOLGAHEO","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":"1ac6427a9d995bd49fed60d717bf0c12c8e0daecf9ceb6625560dcaf3b09eb59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-22T15:20:48Z","title_canon_sha256":"f99335b166f64ec71e53f62cdec7f7cc04cbabaccf88fa9084b4eae7cf768a13"},"schema_version":"1.0","source":{"id":"1303.5642","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5642","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5642v2","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5642","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"RI2MPJ2XVYZG","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RI2MPJ2XVYZGWSGN","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RI2MPJ2X","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:5faccb3b2fc068475b447e131902c3157b321ba836b91e6f12e1e45e798a20b3","target":"graph","created_at":"2026-05-18T01:50:59Z","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":"Images of flux vortices in superconductors acquired by transmission electron microscopy should allow a quantitative determination of their magnetic structure but so far, only visual comparisons have been made between experimental images and simulations. Here, we make a quantitative comparison between Fresnel images and simulations based on the modified London equation to investigate the magnetic structure of flux vortices in MgB2. This technique gives an absolute, low-field (~30 Oe) measurement of the penetration depth from images of single vortices. We found that these simulations gave a good","authors_text":"C.J. Bowell, J.C. Loudon, J. Karpinski, N.D. Zhigadlo, P.A. Midgley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-22T15:20:48Z","title":"The Magnetic Structure of Individual Flux Vortices in Superconducting MgB2 Derived using Transmission Electron Microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5642","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":"sha256:5f00c58c928ac56cf6d0352ca0a1ad255429fd4d7a29b4b0133523a31f06356b","target":"record","created_at":"2026-05-18T01:50:59Z","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":"1ac6427a9d995bd49fed60d717bf0c12c8e0daecf9ceb6625560dcaf3b09eb59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-22T15:20:48Z","title_canon_sha256":"f99335b166f64ec71e53f62cdec7f7cc04cbabaccf88fa9084b4eae7cf768a13"},"schema_version":"1.0","source":{"id":"1303.5642","kind":"arxiv","version":2}},"canonical_sha256":"8a34c7a757ae326b48cd6fa4e598072394970d91ff47582d60ae3537e0b2f9ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a34c7a757ae326b48cd6fa4e598072394970d91ff47582d60ae3537e0b2f9ae","first_computed_at":"2026-05-18T01:50:59.495602Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:59.495602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W+4pXHU7UayABD6QcBWxOqhYOLQT6JBYvN+u9Rz9ezoxlAU03i4rDkuT+MCIcQIzeU14fbSMcY2IfWNcxxjhAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:59.496011Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.5642","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f00c58c928ac56cf6d0352ca0a1ad255429fd4d7a29b4b0133523a31f06356b","sha256:5faccb3b2fc068475b447e131902c3157b321ba836b91e6f12e1e45e798a20b3"],"state_sha256":"3bdf670a856749866b6174e1d5feed37d1a3eb8e923e5fab08d6db25c3957f24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZYnBjiE9/MngTLar8e8gRvyCLV5PP20qcROqQIOFd6ZVgRvOnjjO5j2scVQaxwWVn6VJSoumJqGhCmvUn9l5CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T12:05:04.840421Z","bundle_sha256":"d88f07ad133db75dd4508c3b246a956c0106ea1aac157c6f9c95b3d57c487116"}}