{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:5JNP3MV63LZ5VSV7XNC6QC3WDH","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":"dab51a96981f5a9f1439790be47fe87140ca6f5da9c65b8e65c0361c0928102f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-03T07:48:57Z","title_canon_sha256":"df8f8ca520a1e3ea8fe0c06dc6c36c7d36ce67c98575a0a614c34a01a9784a26"},"schema_version":"1.0","source":{"id":"1508.00337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00337","created_at":"2026-05-18T01:29:13Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00337v1","created_at":"2026-05-18T01:29:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00337","created_at":"2026-05-18T01:29:13Z"},{"alias_kind":"pith_short_12","alias_value":"5JNP3MV63LZ5","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"5JNP3MV63LZ5VSV7","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"5JNP3MV6","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:28c251fdbe832e65cbefb491df582ec8935a2a9c2fe6fc5b43b55d856d89ea16","target":"graph","created_at":"2026-05-18T01:29:13Z","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":"A general method for the quantification of dipolar interactions in assemblies of nanoparticles has been developed from a model sample constituted by magnetite nanoparticles of 5 nm in diameter, in powder form with oleic acid as a surfactant so that the particles were solely separated from each other through an organic layer of about 1 nm in thickness. This quantification is based on the comparison of the distribution of energy barriers for magnetization reversal obtained from time-dependent relaxation measurements starting from either (i) an almost random orientation of the particles magnetiza","authors_text":"Am\\'ilcar Labarta, Carlos Moya, \\`Oscar Iglesias, Xavier Batlle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-03T07:48:57Z","title":"Quantification of dipolar interactions in Fe$_{3-x}$O$_4$ nanoparticles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00337","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":"sha256:96651fa559b199779311a2a5b78594cdd689222a59ffad3e7f071cd39d7be7e1","target":"record","created_at":"2026-05-18T01:29:13Z","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":"dab51a96981f5a9f1439790be47fe87140ca6f5da9c65b8e65c0361c0928102f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-03T07:48:57Z","title_canon_sha256":"df8f8ca520a1e3ea8fe0c06dc6c36c7d36ce67c98575a0a614c34a01a9784a26"},"schema_version":"1.0","source":{"id":"1508.00337","kind":"arxiv","version":1}},"canonical_sha256":"ea5afdb2bedaf3dacabfbb45e80b7619eb237f4ce97950ffef2f160fe0cdcff7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea5afdb2bedaf3dacabfbb45e80b7619eb237f4ce97950ffef2f160fe0cdcff7","first_computed_at":"2026-05-18T01:29:13.181883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:13.181883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rrbta5YbjYmFlwADNL8qDZiCXZGS/tU2rWRImBmndF1sQcb0N6pND84/FeEdVqg6d+ysdiEGgvJ5qaV7cr9hBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:13.182460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.00337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96651fa559b199779311a2a5b78594cdd689222a59ffad3e7f071cd39d7be7e1","sha256:28c251fdbe832e65cbefb491df582ec8935a2a9c2fe6fc5b43b55d856d89ea16"],"state_sha256":"2dd849ffc1bff3d7d46eff08e9a10af6ca3013a6d826fee6f57e33d12bb501e5"}