{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7HMDXOWGEJVBHRPUGKHHIRQ3QY","short_pith_number":"pith:7HMDXOWG","canonical_record":{"source":{"id":"1504.04983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-04-20T09:25:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"74c6c57f25177ecee1ec134b86c44df92d90772fc2d25dc8bb0ece5de6e97c93","abstract_canon_sha256":"be6ea7591855552df048f8f88dbc17fb0400aa88b83bb9c6d9ae583948e62893"},"schema_version":"1.0"},"canonical_sha256":"f9d83bbac6226a13c5f4328e74461b863020c3728b54cf180b149c3d911dfab9","source":{"kind":"arxiv","id":"1504.04983","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04983","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04983v1","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04983","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"pith_short_12","alias_value":"7HMDXOWGEJVB","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7HMDXOWGEJVBHRPU","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7HMDXOWG","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7HMDXOWGEJVBHRPUGKHHIRQ3QY","target":"record","payload":{"canonical_record":{"source":{"id":"1504.04983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-04-20T09:25:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"74c6c57f25177ecee1ec134b86c44df92d90772fc2d25dc8bb0ece5de6e97c93","abstract_canon_sha256":"be6ea7591855552df048f8f88dbc17fb0400aa88b83bb9c6d9ae583948e62893"},"schema_version":"1.0"},"canonical_sha256":"f9d83bbac6226a13c5f4328e74461b863020c3728b54cf180b149c3d911dfab9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:23.041528Z","signature_b64":"/Ew5jAM6U9wNJU/11khCjK8OXkWuBcqWrAUbKIXTF9+TVCHr6JGnPU0Ocw7e7DFWDIdEfV29Z2CWFr7yBeWEDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9d83bbac6226a13c5f4328e74461b863020c3728b54cf180b149c3d911dfab9","last_reissued_at":"2026-05-18T02:18:23.040635Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:23.040635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.04983","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":"2026-05-18T02:18:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s5rB29fbQwjmql0SX7UrTFh3GIdh8jIa3pQY8pzyE/ovdam73mWyaPnlj7MmDWQkCum/CVzk0gf555Ploz2DBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:42:36.465620Z"},"content_sha256":"5866bef2f39aa6bcde7fab406b553a959f5ed5590bc6315eb5fcaadc015b5f13","schema_version":"1.0","event_id":"sha256:5866bef2f39aa6bcde7fab406b553a959f5ed5590bc6315eb5fcaadc015b5f13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7HMDXOWGEJVBHRPUGKHHIRQ3QY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hybrid Nanocomposites with Tunable Alignment of the Magnetic Nanorod Filler","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.soft","authors_text":"C\\'eline Rosticher, Cl\\'ement Sanchez, Corinne Chan\\'eac, Cyrille Rochas, Doru Constantin, Fabien Perineau, Ivan Dozov, Laurence Rozes, Patrick Davidson","submitted_at":"2015-04-20T09:25:49Z","abstract_excerpt":"For many important applications, the performance of polymer-anisotropic particle nanocomposite materials strongly depends on the orientation of the nanoparticles. Using the very peculiar magnetic properties of goethite ({\\alpha}-FeOOH) nanorods, we produced goethite-poly(hydroxyethyl methacrylate) nanocomposites in which the alignment direction and the level of orientation of the nanorods could easily be tuned by simply adjusting the intensity of a magnetic field applied during polymerization. Because the particle volume fraction was kept low (1-5.5 vol \\%), we used the orientational order ind"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04983","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":"2026-05-18T02:18:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pXd/cTmZJfIQVpHPbfJEfkX56ckd1mfKUaNPaeBu6Z1s2NDs/94ph1hQGvUWPobvsr6Po5UVr1KncIbTc++vBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:42:36.466257Z"},"content_sha256":"663715281a359ec29fcc22e3abe800f1443118712b7dfa94ebea366f6db7d7b6","schema_version":"1.0","event_id":"sha256:663715281a359ec29fcc22e3abe800f1443118712b7dfa94ebea366f6db7d7b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/bundle.json","state_url":"https://pith.science/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/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":"2026-05-30T14:42:36Z","links":{"resolver":"https://pith.science/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY","bundle":"https://pith.science/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/bundle.json","state":"https://pith.science/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7HMDXOWGEJVBHRPUGKHHIRQ3QY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7HMDXOWGEJVBHRPUGKHHIRQ3QY","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":"be6ea7591855552df048f8f88dbc17fb0400aa88b83bb9c6d9ae583948e62893","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-04-20T09:25:49Z","title_canon_sha256":"74c6c57f25177ecee1ec134b86c44df92d90772fc2d25dc8bb0ece5de6e97c93"},"schema_version":"1.0","source":{"id":"1504.04983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04983","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04983v1","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04983","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"pith_short_12","alias_value":"7HMDXOWGEJVB","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7HMDXOWGEJVBHRPU","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7HMDXOWG","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:663715281a359ec29fcc22e3abe800f1443118712b7dfa94ebea366f6db7d7b6","target":"graph","created_at":"2026-05-18T02:18:23Z","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":"For many important applications, the performance of polymer-anisotropic particle nanocomposite materials strongly depends on the orientation of the nanoparticles. Using the very peculiar magnetic properties of goethite ({\\alpha}-FeOOH) nanorods, we produced goethite-poly(hydroxyethyl methacrylate) nanocomposites in which the alignment direction and the level of orientation of the nanorods could easily be tuned by simply adjusting the intensity of a magnetic field applied during polymerization. Because the particle volume fraction was kept low (1-5.5 vol \\%), we used the orientational order ind","authors_text":"C\\'eline Rosticher, Cl\\'ement Sanchez, Corinne Chan\\'eac, Cyrille Rochas, Doru Constantin, Fabien Perineau, Ivan Dozov, Laurence Rozes, Patrick Davidson","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-04-20T09:25:49Z","title":"Hybrid Nanocomposites with Tunable Alignment of the Magnetic Nanorod Filler"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04983","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":"sha256:5866bef2f39aa6bcde7fab406b553a959f5ed5590bc6315eb5fcaadc015b5f13","target":"record","created_at":"2026-05-18T02:18:23Z","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":"be6ea7591855552df048f8f88dbc17fb0400aa88b83bb9c6d9ae583948e62893","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-04-20T09:25:49Z","title_canon_sha256":"74c6c57f25177ecee1ec134b86c44df92d90772fc2d25dc8bb0ece5de6e97c93"},"schema_version":"1.0","source":{"id":"1504.04983","kind":"arxiv","version":1}},"canonical_sha256":"f9d83bbac6226a13c5f4328e74461b863020c3728b54cf180b149c3d911dfab9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9d83bbac6226a13c5f4328e74461b863020c3728b54cf180b149c3d911dfab9","first_computed_at":"2026-05-18T02:18:23.040635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:23.040635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Ew5jAM6U9wNJU/11khCjK8OXkWuBcqWrAUbKIXTF9+TVCHr6JGnPU0Ocw7e7DFWDIdEfV29Z2CWFr7yBeWEDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:23.041528Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.04983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5866bef2f39aa6bcde7fab406b553a959f5ed5590bc6315eb5fcaadc015b5f13","sha256:663715281a359ec29fcc22e3abe800f1443118712b7dfa94ebea366f6db7d7b6"],"state_sha256":"eae5fe03eed8247ac0b98c8561f150d2fda4678f320475ee3c6d4c0a2ab0d2b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AI10X7B4flnHxraSsn4hY11t/0rv3VUM9t/b4uZP1jq0qf5ceqwBGjG+zhd3PjzscJY0V1lBU3Lr0KPOtCXRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:42:36.469002Z","bundle_sha256":"f1513813fb7ba2af85979154de2dd7b0e0b5ee80b686ff8d53751c9ccc3a63f2"}}