{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:AZ443HTFK2YQAJ4VZUHP5YYSU4","short_pith_number":"pith:AZ443HTF","canonical_record":{"source":{"id":"cond-mat/0102338","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-02-19T16:41:42Z","cross_cats_sorted":[],"title_canon_sha256":"f09d37cc637123942347bec29c8a8e911dc247b23ffa6f18275e533ace1d3190","abstract_canon_sha256":"18a1e49176b544137c9fb5b2b7598bc1bb9a6eb62be1b2f9f53054ee28eda326"},"schema_version":"1.0"},"canonical_sha256":"0679cd9e6556b1002795cd0efee312a733a8814a5f79f417dd238a60023d4156","source":{"kind":"arxiv","id":"cond-mat/0102338","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0102338","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0102338v4","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0102338","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_12","alias_value":"AZ443HTFK2YQ","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_16","alias_value":"AZ443HTFK2YQAJ4V","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_8","alias_value":"AZ443HTF","created_at":"2026-07-04T16:25:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:AZ443HTFK2YQAJ4VZUHP5YYSU4","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0102338","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-02-19T16:41:42Z","cross_cats_sorted":[],"title_canon_sha256":"f09d37cc637123942347bec29c8a8e911dc247b23ffa6f18275e533ace1d3190","abstract_canon_sha256":"18a1e49176b544137c9fb5b2b7598bc1bb9a6eb62be1b2f9f53054ee28eda326"},"schema_version":"1.0"},"canonical_sha256":"0679cd9e6556b1002795cd0efee312a733a8814a5f79f417dd238a60023d4156","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:25:01.620843Z","signature_b64":"QFaLHU8ftuH/8yl1RyI7rbWvlCmTosIhJmU6xETgTB4yDbyQ/np/o66He69v8lN8OByn6NLV0JDD5PsKu1LMAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0679cd9e6556b1002795cd0efee312a733a8814a5f79f417dd238a60023d4156","last_reissued_at":"2026-07-04T16:25:01.620380Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:25:01.620380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0102338","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:25:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wtw1vIAAuQ7EhyI+Z9R2yseyDu0zEQ63sPpQX/wpDtY45HUb40q0z9CaXkFPI+PwFM7JI0K9NlGjQLYztPr8AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T03:16:39.268338Z"},"content_sha256":"dd7c6b015d12742f4e555f38bc91d5aa7ef0f601c5f6d9a1c7c7f213ab702be2","schema_version":"1.0","event_id":"sha256:dd7c6b015d12742f4e555f38bc91d5aa7ef0f601c5f6d9a1c7c7f213ab702be2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:AZ443HTFK2YQAJ4VZUHP5YYSU4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Prominent bulk pinning effect in the MgB_2 superconductor","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"C. U. Jung, Kijoon H. P. Kim, Min-Seok Park, Mun-Seog Kim, Sung-Ik Lee, S. Y. Lee, W N. Kang","submitted_at":"2001-02-19T16:41:42Z","abstract_excerpt":"We report the magnetic-field dependence of the irreversible magnetization of the recently discovered binary superconductor MgB$_{2}$. For the temperature region of $T< 0.9T_c$, the contribution of the bulk pinning to the magnetization overwhelms that of the surface pinning. This was evident from the fact that the magnetization curves, $M(H)$, were well described by the critical-state model without considering the surface pinning effect. It was also found that the $M(H)$ curves at various temperatures scaled when the field and the magnetization were normalized by the characteristic scaling fact"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0102338","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0102338/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:25:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8h9AW3ykxfD89xG+AzcQQZ3vbrX2N97lbifXt7GXuuWvXSvd1rjELioUaISI3IUDk9GVVJcmAk/AuAnNXtzECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T03:16:39.268712Z"},"content_sha256":"a248aff6947cd52ffe922ac2e2674669461c8b8acce898c0187d6d5a030313f5","schema_version":"1.0","event_id":"sha256:a248aff6947cd52ffe922ac2e2674669461c8b8acce898c0187d6d5a030313f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/bundle.json","state_url":"https://pith.science/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/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":"2026-07-27T03:16:39Z","links":{"resolver":"https://pith.science/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4","bundle":"https://pith.science/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/bundle.json","state":"https://pith.science/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AZ443HTFK2YQAJ4VZUHP5YYSU4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:AZ443HTFK2YQAJ4VZUHP5YYSU4","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":"18a1e49176b544137c9fb5b2b7598bc1bb9a6eb62be1b2f9f53054ee28eda326","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-02-19T16:41:42Z","title_canon_sha256":"f09d37cc637123942347bec29c8a8e911dc247b23ffa6f18275e533ace1d3190"},"schema_version":"1.0","source":{"id":"cond-mat/0102338","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0102338","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0102338v4","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0102338","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_12","alias_value":"AZ443HTFK2YQ","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_16","alias_value":"AZ443HTFK2YQAJ4V","created_at":"2026-07-04T16:25:01Z"},{"alias_kind":"pith_short_8","alias_value":"AZ443HTF","created_at":"2026-07-04T16:25:01Z"}],"graph_snapshots":[{"event_id":"sha256:a248aff6947cd52ffe922ac2e2674669461c8b8acce898c0187d6d5a030313f5","target":"graph","created_at":"2026-07-04T16:25:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0102338/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the magnetic-field dependence of the irreversible magnetization of the recently discovered binary superconductor MgB$_{2}$. For the temperature region of $T< 0.9T_c$, the contribution of the bulk pinning to the magnetization overwhelms that of the surface pinning. This was evident from the fact that the magnetization curves, $M(H)$, were well described by the critical-state model without considering the surface pinning effect. It was also found that the $M(H)$ curves at various temperatures scaled when the field and the magnetization were normalized by the characteristic scaling fact","authors_text":"C. U. Jung, Kijoon H. P. Kim, Min-Seok Park, Mun-Seog Kim, Sung-Ik Lee, S. Y. Lee, W N. Kang","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-02-19T16:41:42Z","title":"Prominent bulk pinning effect in the MgB_2 superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0102338","kind":"arxiv","version":4},"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:dd7c6b015d12742f4e555f38bc91d5aa7ef0f601c5f6d9a1c7c7f213ab702be2","target":"record","created_at":"2026-07-04T16:25:01Z","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":"18a1e49176b544137c9fb5b2b7598bc1bb9a6eb62be1b2f9f53054ee28eda326","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-02-19T16:41:42Z","title_canon_sha256":"f09d37cc637123942347bec29c8a8e911dc247b23ffa6f18275e533ace1d3190"},"schema_version":"1.0","source":{"id":"cond-mat/0102338","kind":"arxiv","version":4}},"canonical_sha256":"0679cd9e6556b1002795cd0efee312a733a8814a5f79f417dd238a60023d4156","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0679cd9e6556b1002795cd0efee312a733a8814a5f79f417dd238a60023d4156","first_computed_at":"2026-07-04T16:25:01.620380Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:25:01.620380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QFaLHU8ftuH/8yl1RyI7rbWvlCmTosIhJmU6xETgTB4yDbyQ/np/o66He69v8lN8OByn6NLV0JDD5PsKu1LMAw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:25:01.620843Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0102338","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd7c6b015d12742f4e555f38bc91d5aa7ef0f601c5f6d9a1c7c7f213ab702be2","sha256:a248aff6947cd52ffe922ac2e2674669461c8b8acce898c0187d6d5a030313f5"],"state_sha256":"af30a802301f71b5fa506219d3d72d2f3c0a14e7a1e4a62906f9c34f8170da04"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g8Bexv5OM2G4I4I64UHJ01NCcvpB9twEiwOo9cUM1fdcZ7ussDjBoy+i3CsdBWPEJwjEhatR6Iy6GA0II8dkBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T03:16:39.271125Z","bundle_sha256":"aded4523f3266300b6dea74191b1b41f192c6d11cfbf6be140bd4dab14ded37a"}}