{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ZFR4K5OPJ65CAM7T6ZMROO6EVC","short_pith_number":"pith:ZFR4K5OP","canonical_record":{"source":{"id":"1110.5737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-10-26T08:40:54Z","cross_cats_sorted":[],"title_canon_sha256":"79f9f13d03986a6726ce5dd23da1b9ddbd76829e1523ffe233b11cf700b71e70","abstract_canon_sha256":"61224aa1a41d2586c4eb8501788c39810db18bfc228c099172636fc17e7d6349"},"schema_version":"1.0"},"canonical_sha256":"c963c575cf4fba2033f3f659173bc4a88b0a62b992a1336307aaf9ee1b8beb58","source":{"kind":"arxiv","id":"1110.5737","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.5737","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"1110.5737v1","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5737","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"ZFR4K5OPJ65C","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZFR4K5OPJ65CAM7T","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZFR4K5OP","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ZFR4K5OPJ65CAM7T6ZMROO6EVC","target":"record","payload":{"canonical_record":{"source":{"id":"1110.5737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-10-26T08:40:54Z","cross_cats_sorted":[],"title_canon_sha256":"79f9f13d03986a6726ce5dd23da1b9ddbd76829e1523ffe233b11cf700b71e70","abstract_canon_sha256":"61224aa1a41d2586c4eb8501788c39810db18bfc228c099172636fc17e7d6349"},"schema_version":"1.0"},"canonical_sha256":"c963c575cf4fba2033f3f659173bc4a88b0a62b992a1336307aaf9ee1b8beb58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:30.954394Z","signature_b64":"X21Glc5bFy5N3mpB+ws0Mr+wyA7jOCteFRHSEL8pbmLDT1s+1R88Ba/9vSZkQvh+bK18Mav/Vp/INu8FT9LGAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c963c575cf4fba2033f3f659173bc4a88b0a62b992a1336307aaf9ee1b8beb58","last_reissued_at":"2026-05-18T03:31:30.953806Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:30.953806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.5737","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":"2026-05-18T03:31:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"++rigX0b/twmvw2pyXOYF5filGSnflFEBocpev6gds2nXdy5w2BdUudU0/+PEffFFEoS9TjwkoajpNaa+SZkCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:59:04.282267Z"},"content_sha256":"2299e6ecfa2f4ea43c17a74efd376bad32c05f1ce350b186730c168d54e2e004","schema_version":"1.0","event_id":"sha256:2299e6ecfa2f4ea43c17a74efd376bad32c05f1ce350b186730c168d54e2e004"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ZFR4K5OPJ65CAM7T6ZMROO6EVC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanostructured exchange coupled hard / soft composites: from the local magnetization profile to an extended 3D simple model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"K. Younsi, L. Bessais, V. Russier","submitted_at":"2011-10-26T08:40:54Z","abstract_excerpt":"In nanocomposite magnetic materials the exchange coupling between phases plays a central role in the determination of the extrinsic magnetic properties of the material: coercive field, remanence magnetization. Exchange coupling is therefore of crucial importance in composite systems made of magnetically hard and soft grains or in partially crystallized media including nanosized crystallites in a soft matrix. It has been shown also to be a key point in the control of stratified hard / soft media coercive field in the research for optimized recording media. A signature of the exchange coupling d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5737","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":"2026-05-18T03:31:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YI3E60bVqlDZ9G+EoteK50IXP5Qc6mYd31W6co+/VMAtlBqnHJIl2NhueVfirPoN1Uq/QaPM1MJHvYs7QOccBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:59:04.282635Z"},"content_sha256":"3e182f4991da31d6ef4ae9ebeca4a76398962b8a73161232d63eddb32d610b65","schema_version":"1.0","event_id":"sha256:3e182f4991da31d6ef4ae9ebeca4a76398962b8a73161232d63eddb32d610b65"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/bundle.json","state_url":"https://pith.science/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/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":"2026-06-24T02:59:04Z","links":{"resolver":"https://pith.science/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC","bundle":"https://pith.science/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/bundle.json","state":"https://pith.science/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZFR4K5OPJ65CAM7T6ZMROO6EVC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZFR4K5OPJ65CAM7T6ZMROO6EVC","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":"61224aa1a41d2586c4eb8501788c39810db18bfc228c099172636fc17e7d6349","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-10-26T08:40:54Z","title_canon_sha256":"79f9f13d03986a6726ce5dd23da1b9ddbd76829e1523ffe233b11cf700b71e70"},"schema_version":"1.0","source":{"id":"1110.5737","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.5737","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"1110.5737v1","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5737","created_at":"2026-05-18T03:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"ZFR4K5OPJ65C","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZFR4K5OPJ65CAM7T","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZFR4K5OP","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:3e182f4991da31d6ef4ae9ebeca4a76398962b8a73161232d63eddb32d610b65","target":"graph","created_at":"2026-05-18T03:31:30Z","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 nanocomposite magnetic materials the exchange coupling between phases plays a central role in the determination of the extrinsic magnetic properties of the material: coercive field, remanence magnetization. Exchange coupling is therefore of crucial importance in composite systems made of magnetically hard and soft grains or in partially crystallized media including nanosized crystallites in a soft matrix. It has been shown also to be a key point in the control of stratified hard / soft media coercive field in the research for optimized recording media. A signature of the exchange coupling d","authors_text":"K. Younsi, L. Bessais, V. Russier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-10-26T08:40:54Z","title":"Nanostructured exchange coupled hard / soft composites: from the local magnetization profile to an extended 3D simple model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5737","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":"sha256:2299e6ecfa2f4ea43c17a74efd376bad32c05f1ce350b186730c168d54e2e004","target":"record","created_at":"2026-05-18T03:31:30Z","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":"61224aa1a41d2586c4eb8501788c39810db18bfc228c099172636fc17e7d6349","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-10-26T08:40:54Z","title_canon_sha256":"79f9f13d03986a6726ce5dd23da1b9ddbd76829e1523ffe233b11cf700b71e70"},"schema_version":"1.0","source":{"id":"1110.5737","kind":"arxiv","version":1}},"canonical_sha256":"c963c575cf4fba2033f3f659173bc4a88b0a62b992a1336307aaf9ee1b8beb58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c963c575cf4fba2033f3f659173bc4a88b0a62b992a1336307aaf9ee1b8beb58","first_computed_at":"2026-05-18T03:31:30.953806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:30.953806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X21Glc5bFy5N3mpB+ws0Mr+wyA7jOCteFRHSEL8pbmLDT1s+1R88Ba/9vSZkQvh+bK18Mav/Vp/INu8FT9LGAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:30.954394Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.5737","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2299e6ecfa2f4ea43c17a74efd376bad32c05f1ce350b186730c168d54e2e004","sha256:3e182f4991da31d6ef4ae9ebeca4a76398962b8a73161232d63eddb32d610b65"],"state_sha256":"9333854e1248a86718c44c70e2b20b4a1bc8447d0e04ab8865a7126ec75e220a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NwjSlD9/i7NtpIhu0sq6x3e5DjYJkObr0gW4qOwTG4cyXzHvAV+OrwbM6sLlrOaLjVJcZGfWaizd7bbKK1zGCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T02:59:04.285260Z","bundle_sha256":"621347e6bc76dab24ff38cb26c8d67d285da8709a5da1e55f34a342133e8ded8"}}