{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:UFPGEXIA5V3KXRHKZV2ORN7COZ","short_pith_number":"pith:UFPGEXIA","schema_version":"1.0","canonical_sha256":"a15e625d00ed76abc4eacd74e8b7e2767e7efd09c99d4caea6fa4c9735b89529","source":{"kind":"arxiv","id":"1902.09389","version":1},"attestation_state":"computed","paper":{"title":"Strong deformation of ferrofluid-filled elastic alginate capsules in inhomogenous magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph","physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Christian Wischnewski, Elena Zwar, Heinz Rehage, Jan Kierfeld","submitted_at":"2019-02-25T15:52:56Z","abstract_excerpt":"We present a new system based on alginate gels for the encapsulation of a ferrofluid drop, which allows us to create millimeter-sized elastic capsules that are highly deformable by inhomogeneous magnetic fields. We use a combination of experimental and theoretical work in order to characterize and quantify the deformation behavior of these ferrofluid-filled capsules. We introduce a novel method for the direct encapsulation of unpolar liquids by sodium alginate. The addition of polar alcohol molecules allows us to encapsulate a ferrofluid as a single phase. This encapsulation method increases t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1902.09389","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-02-25T15:52:56Z","cross_cats_sorted":["physics.chem-ph","physics.flu-dyn"],"title_canon_sha256":"64738ad2e2f02b61a87f365144c49dcb458474b69ba4ba3215f755f407235fd2","abstract_canon_sha256":"624f0d7d03155f75a6e402c4a2db971b9a1da3c927ba2dff477b20eba0512a61"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:45.878793Z","signature_b64":"yhV7oLssGtRjjkXmvPBck+yNOiC5I1AegtqmR1aJWoPI8UZyVUCmIMaRnEV30HjLmErZNG5BhU8uBbAGeP6+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a15e625d00ed76abc4eacd74e8b7e2767e7efd09c99d4caea6fa4c9735b89529","last_reissued_at":"2026-05-17T23:52:45.878309Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:45.878309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Strong deformation of ferrofluid-filled elastic alginate capsules in inhomogenous magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph","physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Christian Wischnewski, Elena Zwar, Heinz Rehage, Jan Kierfeld","submitted_at":"2019-02-25T15:52:56Z","abstract_excerpt":"We present a new system based on alginate gels for the encapsulation of a ferrofluid drop, which allows us to create millimeter-sized elastic capsules that are highly deformable by inhomogeneous magnetic fields. We use a combination of experimental and theoretical work in order to characterize and quantify the deformation behavior of these ferrofluid-filled capsules. We introduce a novel method for the direct encapsulation of unpolar liquids by sodium alginate. The addition of polar alcohol molecules allows us to encapsulate a ferrofluid as a single phase. This encapsulation method increases t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09389","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1902.09389","created_at":"2026-05-17T23:52:45.878399+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.09389v1","created_at":"2026-05-17T23:52:45.878399+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09389","created_at":"2026-05-17T23:52:45.878399+00:00"},{"alias_kind":"pith_short_12","alias_value":"UFPGEXIA5V3K","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"UFPGEXIA5V3KXRHK","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"UFPGEXIA","created_at":"2026-05-18T12:33:30.264802+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ","json":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ.json","graph_json":"https://pith.science/api/pith-number/UFPGEXIA5V3KXRHKZV2ORN7COZ/graph.json","events_json":"https://pith.science/api/pith-number/UFPGEXIA5V3KXRHKZV2ORN7COZ/events.json","paper":"https://pith.science/paper/UFPGEXIA"},"agent_actions":{"view_html":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ","download_json":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ.json","view_paper":"https://pith.science/paper/UFPGEXIA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.09389&json=true","fetch_graph":"https://pith.science/api/pith-number/UFPGEXIA5V3KXRHKZV2ORN7COZ/graph.json","fetch_events":"https://pith.science/api/pith-number/UFPGEXIA5V3KXRHKZV2ORN7COZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ/action/storage_attestation","attest_author":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ/action/author_attestation","sign_citation":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ/action/citation_signature","submit_replication":"https://pith.science/pith/UFPGEXIA5V3KXRHKZV2ORN7COZ/action/replication_record"}},"created_at":"2026-05-17T23:52:45.878399+00:00","updated_at":"2026-05-17T23:52:45.878399+00:00"}